- Description
- Specifications
- Setup Software
- Mechanical
- Documents
- Applications
- Technical FAQ
- Accessories
Features
- Provides automatic control for repetitive liquid fill operations
- Available for turbine flow meter pulse signals from 0 Hz to 1 MHz or analog flow meter signals (4-20 mA, 0-1 mA or 0-10V)
- 6-digit scalable display to ±999,999 for batch total, grand total, number of batches, or flow rate
- Counts up from 0 to preset or down from preset to 0
- Two or four control relays for with settable delay between cycles
- Digital span adjust from 0 to ±999,999, zero adjust from -999,999 to +999,999
- Front panel scalable: to ±999,999 for use with current shunts
- 1/8 DIN size with bright red or green 0.56" (14.2mm), high LED digits
- Transducer excitation output, 5, 10, 12, or 24 Vdc (isolated)
- Power 85-264 Vac / 90-300 Vdc or 10-48 Vdc / 12-32 Vac (isolated)
- Operating temperature from -40°C to 70°C (-40°F to 158°F)
- Wide choice of Plug-in-Play options:
- 2 or 4 relays, mechanical or solid state, for alarm or control (isolated)
- 1 or 2 Analog output, 4-20 mA, 0-20 mA, 0-10V, or -10V to +10V (isolated)
- Communications: Ethernet, WiFi, USB, RS232, RS485 (isolated)
Certificates of Compliance
The Laureate™ 1/8 DIN Digital Panel Meter batch controller
is a low cost, powerful and highly accurate batching controller for repetitive fill operations. It can use the Laureate FR dual channel pulse input signal conditioner for use with turbine flow meters. Relay control can be provided by two or four 8A contact relays, or by two or four 120 mA AC/DC solid state relays. Fill operations are repeated continually with a programmable delay from 10 ms to 199.99 sec, or based on an external control input.Three items are tracked by the batch control software. These can each be scaled to engineering units of total or flow rate and displayed by the controller's six-digit LED display: Item #1 is the current batch total, which can be set up to count up from zero to a preset limit, or down from a preset limit to zero. Item #2 can be assigned to grand total or number of batches. Item #3 is the flow rate.
The Laureate Digital Panel Meter is easily programmed with Laurel’s free Instrument Setup Software, downloadable from our website and compatible with Windows PCs, requiring a data interface board for setup.
All signal conditioner board ranges are factory-calibrated, with calibration factors for each range securely stored in an onboard EEPROM. These factors can be scaled via software to accommodate external shunts, enabling field replacement of signal conditioner boards without necessitating recalibration of the associated digital panel meter. For optimal accuracy, factory recalibration is recommended annually. All Laurel Electronics instruments undergo factory calibration using the industry-leading Fluke calibrators, which are recalibrated yearly and certified traceable to national standards, ensuring the highest level of precision and reliability.
Two or four relays can be used. Relay #1 is assigned to batch total to control the filling operation. Relays #2, #3 and #4 can each be assigned by the user to Items #1, #2 or #3. For example, Relay #2 can be assigned to Item #1 (batch total) with a lower setpoint to serve as a pre-warn and slow down the fill rate near the batch setpoint, and Relay #3 can be assigned to the total number of batches to terminate the batching when a present number of bottles have been filled.
An optional serial communications board allows the batch controller to transmit Items #1, #2 and #3, as well as peak for item #3 (rate). If required, all four items can be displayed simultaneously by augmenting the batch controller with up to three Laureate remote displays. Each of these can have its own analog output and relays for alarm or control.
Batch Control with Turbine Flowmeters
The pulse-input batch controller utilizes the FR dual channel signal conditioner, which accepts pulses from turbine flow meters and most industrial transducers with a pulse output such as proximity switches with PNP or NPN output, TTL or CMOS logic, or magnetic pickup pulses down to 12 mV. The same signal is applied in parallel to the A and B input channels, which are used independently. Either channel can accept pulse rates from 0.005 Hz to 250 kHz, which exceeds the working range of turbine flow meters.
- Channel A is used for totalizing. The measured total is scaled mathematically for control and display of volume in engineering units, such as liters.
- Channel B is used for rate. The pulse frequency is determined by timing an integral number of periods over a specified gate time (plus 30 ms and 0-2 periods), and then taking the inverse of period. The inverse period approach allows much greater accuracy and faster update times than conventional rate meters which count signal pulses over a specified time interval. Update times can be as high as 25/sec. Rate in engineering units, such as liters per second, is obtained by multiplying the input by a scale factor.
- An unfiltered selection provides true peak and valley readings and aids in control applications.
- A batch average filter selection averages each 16 conversions.
- An adaptive moving average filter selection provides a choice of 8 time constants from 80 ms to 9.6 seconds. When a significant change in signal level occurs, the filter adapts by briefly switching to the shortest time to follow the change, then reverts back to its selected time constant. An Auto setting selects the time constant selection based on signal noise.
Peak and valley values are automatically captured. These may be displayed via a front panel pushbutton command or control signal at the rear connector, or be transmitted as serial data.
Two rear panel control Inputs (CMOS/TTL levels, logic 0 = tied to digital ground, logic 1 = open) or dry contacts that can be set to control / activate 14 meter commands.
An (isolated) 5, 10, 12, or 24 Vdc excitation output is standard to power transducers or two-wire transmitters. Ratiometric operation, which automatically compensates for changes in the applied excitation, is jumper selectable for applications, such as bridges, where the signal to be measured is proportional to the excitation level.
| Display | |
|---|---|
| Readout | 6 LED digits, 7-segment, 14.2 mm (.56"), red or green |
| Display Range | -999,999 to +999,999, XXXXEX scientific notation beyond 999,999 |
| Zero Adjust | -999,999 to +999,999 |
| Span Adjust | 0 to ±999,999 |
| Indicators | Four LED lamps |
| Pulse Inputs (FR signal conditioner) | |
| Signal Types | AC, pulses from NPN, PNP transistors, contact closures,magnetic pickups. |
| Ch A Frequency, Max | 1 MHz |
| Ch B Frequency, Max | 250 kHz |
| Signal Ground | Common ground for channels A & B |
| Minimum Signal | Nine ranges from (-12 to +12 mV) to (+1.25 to +2.1V) |
| Maximum Signal | 250 Vac |
| Maximum Frequency | 1 MHz, 30 kHz, 250 Hz (selectable) |
| Conversion Technique | Inverse period |
| Delay between batches | Selectable 10 ms to 199.99 s |
| Recalibration: All ranges are calibrated at the factory. Recalibration is recommended every 12 months. | |
| Power Supply Boards (one required) | |
| Voltage, standard | 85-264 Vac or 90-300 Vdc |
| Voltage, optional | 12-32 Vac or 10-48 Vdc |
| Frequency | DC or 47-63 Hz |
| Power consumption | 1.2W @ 120 Vac, 1.5W @ 240 Vac, 1.3W @ 10 Vdc, 1.4W @ 20 Vdc, |
| (typical, base meter) | 1.55W @ 30 Vdc, 1.8W @ 40 Vdc, 2.15W @ 48 Vdc |
| Power Isolation | 250V rms working, 2.3 kV rms per 1 min test |
| Excitation Output (standard) | |
| 5 Vdc | 5 Vdc ± 5%, 100 mA (jumper selectable) |
| 10 Vdc | 10 Vdc ± 5%, 120 mA (jumper selectable) |
| 12 Vdc | 12 Vdc ± 5%, 100 mA (jumper selectable) |
| 24 Vdc | 24 Vdc ± 5%, 50 mA (jumper selectable) |
| Output Isolation | 50 Vdc from signal ground |
| Analog Output Boards (one optional) | |
| Output Levels | 4-20 mA, 0-20 mA, 0-10V, -10 to +10V (single-output option) |
| Current compliance | 4-20 mA, 0-20 mA, 0-10V (dual-output option) |
| Voltage compliance | 2 mA at 10V ( > 5 kΩ load) |
| Scaling | 12V at 20 mA ( < 600 Ω load) |
| Resolution | Zero and full scale adjustable from -99999 to +99999 16 bits (0.0015% of full scale) |
| Isolation | 250V rms working, 2.3 kV rms per 1 min test (dual analog outputs share the same ground) |
| Relay Output Boards (one required for batch control) | |
| Dual magnetic relays | 2 Form C, 10A max, 440Vac or 125Vdc max, 2500VA or 300W |
| Quad magnetic relays | 4 Form A (NO), 10A max, 440Vac or 125Vdc max, 2500VA or 300W |
| Dual solid state relays | 2 Form A (NO), AC or DC, 0V - 400V, 120Ma, 35Ohms (max at On-State) |
| Quad solid state relays | 4 Form A (NO), AC or DC, 0V - 400V, 120Ma, 35Ohms (max at On-State) |
| Relay commons | Isolated commons for dual relays or each pair of quad relays |
| Relay isolation | 250V rms working, 2.3 kV rms per 1 minute test |
| Relay latching modes | Latching or non-latching |
| Relay active modes | Active on or off, active high or low |
| Hysteresis modes | QA passband mode, split hysteresis, span hysteresis |
| Communication Boards (one optional) | |
| Board Selections | RS232, RS485 with dual RJ11 connectors, RS485 with dual RJ45 connectors, USB, High-Speed Ethernet, USB-to-RS485 gateway, High-Speed Ethernet-to-RS485 gateway, WiFi with built-in antenna plus USB & RS485, WiFi with external antenna plus USB & RS485 |
| Protocols | Laurel Custom ASCII (serial), Modbus RTU (serial), Modbus TCP (Ethernet or WiFi) |
| Digital Addresses | 247 (Modbus), 31 (Laurel ASCII), |
| Isolation | 250V rms working, 2.3 kV rms per 1 min test |
| Environmental | |
| Operating Temperature | -40°C to 70°C (-40°F to 158°F) |
| Storage Temperature | -40°C to 85°C (-40°F to 185°F) |
| Relative Humidity | 95% at 40°C, non-condensing |
| Protection | NEMA-4X (IP-65) when panel mounted |
| Signal Connections | |
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| Mechanical | |
| Enclosure | 1/8 DIN, high impact plastic, UL 94V-0, color: black |
| Mounting | 1/8 DIN panel cutout required: 3.622" x 1.772" (92 mm x 45 mm). |
| Dimensions | 4.68" x 2.45" x 5.64" (119 mm x 62 mm x 143 mm) (W x H x D) |
| Maximum panel thickness | 4.5 mm (0.18") |
| Tightening Torque - Connectors | Screw terminal connectors: 5 lb-in (0.56 Nm) |
| Tightening Torque - Pawls | Digital Panel Meter Case Pawls: 5 lb-in (0.56 Nm) |
| Weight of base meter | 210 g (7.4 oz) typical (DPM, counter, timer, 6-digit remote display) |
| Weight of option boards | 30 g (1.0 oz) typical per board (analog output, relay output, communications) |
| General | |
| Programming Methods | Four front panel buttons or via Laurel's free Instrument Setup Software, which runs on a PC under MS Windows. |
| Security | Lockout options include using the front panel buttons, the free Instrument Setup Software, or a hardware jumper. |
| Warranty | 3 years parts & labor |
| Recalibration: All ranges are calibrated at the factory. Recalibration is recommended every 12 months. | |
Free Instrument Setup Software for Series 2 Laureates
Free Downloadable Windows-based Instrument Setup (IS) software (Data Interface Board Required) for use with our programmable Digital Panel Meters, Scale Meters, Counters, Timers, Remote Displays, and Transmitters, are an easy method to set up Laureate 1/8 DIN digital panel meters, counters, timers, remote displays, and DIN-rail transmitters, as explained in the Instrument Setup Software Manual. Laureate 1/8 DIN instruments can also be set up from the front panel, as explained in their respective Owners Manuals. Instrument Setup software is of benefit whether or not the PC is connected to the instrument.
- When the PC is connected to the instrument, Instrument Setup software can retrieve the setup file from the instrument or open a default setup file or previously saved setup file from disk View Setup, then provides graphical user interface (GUI) screens with pull-down menus applicable to input, display, scaling, filtering, alarms, communications, analog output, and front panel lockouts. Fields that are not applicable to the instrument as configured are either left out or grayed out. Clicking on any item will bring up a detailed Help screen for that item. After editing, the setup file can be downloaded, uploaded to the instrument, or saved to a disk. The same setup file can then be downloaded into multiple instruments.
- When the PC is not connected to the instrument, the above GUI screens can be used to set up a virtual instrument. The setup file can then be saved to disk. Switching toView Menu then brings up a screen with the required front panel programming steps. This view can be printed out for use at the instrument site and to serve as a hard copy record.
Download Free Instrument Setup Software
Installation
Set User Account Control (UAC) of MS Windows to "Never notifiy me" so that Instrument Setup Software can create directories. The UAC change screen can be reached as follows:
- Under Windows 7, click on the Windows Start button in the lower left of the desktop and enter "UAC" in the search field.
- Under Windows 8, navigate to Control Panel, then to the "User Accounts and Family Safety" section, and click on "Change User Account Control Settings."
- Under Windows 10, click on the Windows Start button in the lower left of the desktop, then on "Settings", and enter "UAC" in the search field.
- Reboot your computer for the changed UAC setting to take effect.
RJ11-to-DB9 cable with rear view of DB9 connector to PC

RS232 cable, meter to PC, P/N CBL01
Laureate 1/8 DIN Laureate instruments must be equipped with a serial communications board and be connected to the computer via a serial communications cable. The connection can be via RS232, RS485, USB or Ethernet. Following setup, the serial communications board may be removed from the instrument if desired. The wiring of the RS232 cable is illustrated above with end views of the two connectors.
Laureate LT Series transmitters come standard with a 3-wire serial interface, which can be jumpered for RS232 or RS485.
Laureate LTE Series transmitters come standard with an Ethernet interface.
Meter Setup Screens
Click on any of the reduced screens below for a full-size screen view, then click on the Back button of your browser to return to this page. The screens examples below are for a fully-loaded Series 2 Digital Panel Meter (DPM), which is connected to the PC via RS232. If the meter is a Series 1 meter (pre-2007), this is sensed by the software, and somewhat different screens are brought up. Please see Series 1 setup screens.
Meter Setup Utilities
From the Main Menu, click on Readings if your PC is connected to the meter. A pull-down menu then offers three choices: List, Plot and Graph.
- List presents the latest readings in a 20-row by 10-column table. Press Pause at any time to freeze the display. This is one method to capture peak readings.
- Plot generates a plot of readings vs. time in seconds. It effectively turns the DPM-PC combination into a printing digital oscilloscope.
- Graph generates a histogram where the horizontal axis is the reading and the vertical axis is the number of occurrences of readings. The display continually resizes itself as the number of readings increases.

Laureate™ 1/8 DIN Case For Laureate Digital Panel Meters, Counters, Timers & Remote Displays
Key Features
- Meets 1/8 DIN Standard.
- Installs from front of panel.
- Short depth behind the panel: only 4" (102 mm) plus connectors.
- Understated 0.157" (4 mm) thick bezel.
- Meets NEMA 4X (IP-65) for high-pressure wawshdon when panel mounted.
- Screw clamps connectors meet VDE / IEC / UL / CSA safety standards.
- Rugged GE Lexan® housing material.
- Safety certified per EN 61010-1.
Dimensions
Maximum panel thickness: 4.5 mm (0.18")
Weight of base meter: 210 g (7.4 oz) typical (DPM, counter, timer, 6-digit remote display)
Weight of option boards: 30 g (1.0 oz) typical per board (analog output, relay output, communications)
Tightening Torque - Connectors: Screw terminal connectors: 5 lb-in (0.56 Nm)
Tightening Torque - Pawls: Digital Panel Meter Case Pawls: 5 lb-in (0.56 Nm)
Dimensioned CAD assembly drawings in EPRT, STEP, x_t. dwg, pdf file formats: Laureate-meter-case.zip (zipping prevents browser from opening CAD files as text files).
Panel Mounting
Slide the meter into a 45 x 92 mm 1/8 DIN panel cutout. Ensure that the provided gasket is in place between the front of the panel and the back of the meter bezel.
The meter is secured by two pawls, each held by a screw, as illustrated. Turning each screw counterclockwise extends the pawl outward from the case and behind the panel. Turning each screw clockwise further tightens it against the panel to secure the meter.
Turning each screw counterclockwise loosens the pawl and retracts it into its well. This position allows installed meter to be removed from their panel, or new meters to be installed in a panel. Do not remove the screws from their pawls. Doing so would cause the screw and pawl to fall off and likely get lost. Do not overtighten so as not to damage the plastic parts.
| Drum Filling Application Utilizing Two Relay Outputs | |
|---|---|
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In this drum filling application, the Laureate pulse-input batch controller utilizes uses its two relays to control a pump. The Prewarn relay slows down the pump near the preset to avoid overshoot. The Batch relay stops the pump at the preset. |
| Controlling Chemical Mixing of Materials | |
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Multiple Laureate batch controllers can be used in combination to control the mixing of materials in the proper ratio. Each feed line is equipped with its own pump, flowmeter, and Laureate. Controller setup and monitoring of the mixing operation are facilitated by optional serial communications. RS485 allows a single data line to handle multiple controllers. |
| Up-Counting Batch Control | |
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In up-counting batch control, the Laureate counts up from zero to a preset maximum. A prewarn level is available to slow down filling near the preset to avoid overshoot. A time delay can be programmed from the end of each batch to the start of the next batch. |
| Down-Counting Batch Control | |
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In down-counting batch control, the Laureate counts down from the preset maximum to zero. A prewarn level is available to slow down filling or emptying near zero. Again, a time delay can be programmed from the end of each batch to the start of the next batch. |
| Discrete Filling and Batch Counting | |
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The Laureate batch controller is ideal for discrete manufacturing as well as repetitive fill operations. In this example, the Laureate counts bottles which it then groups into sixpacks. Its Grand Total capability can be used to track bottles or sixpacks. |
Batch Controller Digital Panel Meter Frequently Asked Technical Questions
CAL-Digital
Certificate of Calibration
$65.00DLS-XLOG2
XLog2 Data logging Software
$495.00IPC
Splashproof Cover
$48.00CON01
CON01 Connector
$75.00CBL01
RS232 Cable for Meters
$35.00CBL02
USB-to-RS232 Adapter Cable
$47.00CBL04
RS232 Cable for LT Transmitters
$47.00CBL05
USB Data Cable for Meters
$47.00CBL06
USB-to-RS485 Adapter Cable
$47.00CBL07
USB Programming & Data Cable
$47.00CBL08
RS485 Splitter Cable
$33.00Modular Design for Maximum Flexibility at Minimum Cost
All boards are isolated from meter and power grounds. Optional Plug-in-Play boards for communications and control include Ethernet, WiFi, serial communication boards, dual or quad relay boards, and an analog output board. Laureates may be powered from 85-264 Vac or optionally from 12-32 Vac or 10-48 Vdc. The display is available with bright red or green 0.56" (14.2mm) high LED digits. The 1/8 DIN case meets NEMA 4X (IP65) specifications from the front when panel mounted. Any setup functions and front panel keys can be locked out for simplified usage and security. A built-in 5, 10, 12, or 24 Vdc excitation supply can power transducers, eliminating the need for an external power supply. All power and signal connections are via UL / VDE / CSA rated screw clamp plugs.
The Laureate™ Series features modular design with up to 7 isolated plug-in boards, applicable to all Laureate 1/8 DIN Digital Panel Meter.
Modular Hardware
The design of the Laureate™ Series is modular for maximum flexibility at minimum cost. All boards are isolated from meter and power grounds. The base configuration for a digital panel meter or counter consists of a main module (with computer and plug-in display boards), a power supply board, and a signal conditioner board. Optional plug-in-play boards include an isolated setpoint controller board, an isolated analog output board, and an isolated digital interface board. Modular design and a choice of plug-in options allow the Laureate to be customized for a broad range of applications from simple monitoring to control and computer interface. There can be up to five plug-in boards in a 1/8 DIN Laureate.
Connecting Laureate Digital Panel Meter to a Local Area Network (LAN)
Up to 30 Laureate Digital Panel Meter and/or LT Transmitters can be configured for RS485 and daisy-chained to an LT Transmitter using Laurel’s High Speed Ethernet-to-RS485 converter board for seamless LAN integration. Alternatively, Laurel LTE series Ethernet transmitters can connect directly to a LAN via an Ethernet cable. Setup for both configurations is streamlined using Laurel’s free Instrument Setup Software, which simplifies node discovery and transmitter configuration.
Flexible Communication Options for Digital Panel Meter
The Laureate Digital Panel Meter can be equipped with Laurel communication boards to support various interfaces and protocols. These include serial interfaces with ASCII or Modbus RTU protocols, and Ethernet interfaces with web access, ASCII, or Modbus TCP/IP protocols, ensuring versatile connectivity for your commercial applications.

What is a Digital Panel Meter for Batch Controller Pulse Input?
A Digital Panel Meter for batch controller pulse input is a precision instrument designed to count and totalize pulse signals from sensors, such as flow meters, encoders, proximity switches, or production counters, while automatically controlling batch processes by triggering actions based on preset cumulative counts or batch targets. This Digital Panel Meter is essential in industrial, manufacturing, process control, and packaging applications where precise automated batching is critical, such as in filling operations, mixing processes, dispensing systems, chemical dosing, or batch packaging. By processing pulse inputs, displaying cumulative totals and batch progress, and automatically controlling external devices (valves, pumps, conveyors, mixers) through relay outputs when batch targets are reached, this Digital Panel Meter ensures accurate control, monitoring, repeatability, and data logging for efficient production, quality assurance, and regulatory compliance.
Unlike basic totalizers or simple counters without control capability, this batch controller Digital Panel Meter offers advanced functionality, including programmable batch setpoints with multiple presets (primary batch, secondary batch, alarm thresholds), relay outputs for controlling external devices (automatic valve closure, pump shutdown, conveyor stop), batch sequencing logic (automatic reset and restart for continuous batch operations), overshoot compensation (accounting for valve closure delay or flow momentum), and the ability to manage multiple batch cycles with documented batch records. The high accuracy (±1 count totalization), comprehensive batch control features, and seamless integration capabilities of this Digital Panel Meter make it ideal for automating repetitive batching processes in industries like food and beverage processing, chemical manufacturing, pharmaceutical production, water treatment, and packaging, eliminating manual intervention, ensuring batch-to-batch consistency, and supporting GMP or HACCP compliance.
Understanding the Digital Panel Meter for Batch Controller Pulse Input
This Digital Panel Meter for batch controller pulse input applications is typically built to the 1/8 DIN standard, fitting compactly into panel cutouts (approximately 92 mm x 45 mm or 96 mm x 48 mm depending on manufacturer). This compact size ensures compatibility with control panels, batch control stations, filling line controls, or process control cabinets while optimizing space, making it suitable for industrial control rooms, production lines, filling operations, packaging stations, or equipment panels with limited space.
This Digital Panel Meter is designed to process pulse signals from sensors like turbine flow meters (pulses proportional to flow rate and volume), positive displacement meters, paddlewheel flow meters, magnetic pickups, proximity switches (detecting parts or events), incremental encoders (tracking position or quantity), photoelectric sensors (counting packages or items), or mass flow meters with pulse output, totalizing cumulative counts (volume in gallons, liters, or cubic meters, weight in pounds or kilograms, parts count, events count) and controlling batch processes by automatically activating relay outputs or control signals when preset batch totals are reached (closing solenoid valve when 1000 gallons accumulated, stopping conveyor when 100 parts counted, shutting down pump when batch target met). This Digital Panel Meter features bright LED (red, green, amber with color-coded batch status indication) or backlit LCD displays with 5-6 digit resolution showing batch progress, user-friendly interfaces with front-panel programming (batch setpoint entry, K-factor scaling, reset options) or PC configuration software, and communication interfaces like RS-232, RS-485, Modbus RTU/TCP, or Ethernet for integration with PLCs, SCADA systems, batch management software, or MES platforms for automated batch documentation, production tracking, and quality records. Advanced features of this Digital Panel Meter, such as programmable signal debouncing (0.1 ms to 100 ms to eliminate contact bounce or electrical noise from pulse inputs), K-factor scaling (converting raw pulse counts to engineering units like gallons, liters, pounds, parts), multiple batch setpoints (primary preset for batch completion, secondary preset for pre-warning, alarm preset for overfill protection), overshoot compensation (slow-down or early cutoff to account for valve closure delay or flow momentum preventing overfilling), automatic batch reset (automatic totalizer reset to zero after batch completion for next cycle), batch sequencing (continuous automatic batch cycles for lights-out operation), and data logging with batch records (timestamps, batch totals, cycle times), ensure reliable performance and precise control in dynamic production environments or processes with varying flow rates.
How Does a Digital Panel Meter for Batch Controller Pulse Input Work?
This Digital Panel Meter processes pulse input signals to totalize counts and automatically control batch processes, displaying results accurately. Below is a detailed breakdown of its operation:
- Signal Acquisition:
This Digital Panel Meter receives pulse signals from a sensor or flow meter, such as a turbine flow meter generating pulses proportional to volumetric flow (1000 pulses per gallon, 100 pulses per liter, 10 pulses per pound) or a proximity counter tracking parts on a conveyor (1 pulse per part, 1 pulse per package, 1 pulse per cycle), representing events to be totalized for batch control. The pulse input can be various signal types including TTL (0-5V logic), NPN open collector (sinking), PNP open collector (sourcing), dry contact closure (mechanical switch or relay), or voltage pulses (0-24V). - Signal Conditioning:
The input pulse signals are conditioned through Schmitt trigger circuitry (for noise immunity and clean edge detection), programmable debounce filtering (adjustable 0.1 ms to 100 ms) to remove contact bounce from mechanical switches, electrical noise from proximity sensors operating near motors or VFDs, or spurious pulses from electromagnetic interference, differential inputs (for long cable runs in electrically noisy environments), or signal shaping to convert irregular pulse waveforms to clean digital edges. This step is critical for accurate pulse counting and reliable batch control in industrial environments with electrical interference, mechanical vibrations, or process dynamics. - Pulse Counting and Totalization:
This Digital Panel Meter uses a high-speed 32-bit counter (capacity up to 4.3 billion pulses) to count incoming pulses and calculate cumulative batch totals (e.g., total liters, total pounds, parts produced, events counted) by applying user-programmed K-factors or scaling multipliers. For example, if a flow meter generates 1000 pulses per gallon and the counter has accumulated 50,000 pulses, the displayed batch total is 50,000 ÷ 1000 = 50 gallons. The meter continuously tracks progress toward the preset batch target, displaying both current batch total and remaining quantity (target - current = remaining) or percentage complete (current / target × 100 = % complete). - Batch Control Logic:
This Digital Panel Meter continuously compares the running cumulative total to user-defined batch setpoints (primary batch target, secondary warning threshold, alarm limit). When the batch total reaches the primary setpoint (e.g., 1000 gallons, 500 pounds, 100 parts), the meter activates designated relay outputs or control signals to stop the batch process by closing a solenoid valve, stopping a pump, halting a conveyor, or signaling batch completion to a PLC. Advanced batch controllers include overshoot compensation (activating relay slightly before setpoint is reached to account for valve closure delay, flow momentum, or system response time, preventing overfilling), slow-down logic (reducing flow rate as target approaches for more precise cutoff), or pre-warning outputs (activating secondary relay at 90% of target to alert operator or prepare next batch cycle). - Digital Counting:
Pulse inputs use high-speed digital counters (capable of counting frequencies up to 10 MHz) without requiring analog-to-digital conversion. The microcontroller processes counts, performs scaling calculations, compares totals to setpoints, and generates control outputs. - Processing and Display:
The digital signals are processed by the microcontroller of this Digital Panel Meter, which applies user calibration (K-factor scaling converting pulses to engineering units), decimal point positioning, or unit selection (gallons, liters, pounds, kilograms, parts, cycles). The results, including batch total, batch status (in-progress, complete, waiting for reset), target setpoint, remaining quantity, or percentage complete, are displayed on a clear LED or LCD digital screen with 5-6 digits, customizable engineering units, and often with status LEDs indicating batch active (green), batch complete (amber), alarm (red), or relay status. - Output and Integration:
This Digital Panel Meter provides multiple outputs including relay contacts (typically 2-4 SPDT relays rated 5A @ 250VAC) for batch control (Relay 1: close valve when batch complete, Relay 2: alarm on overfill, Relay 3: low-level warning, Relay 4: batch cycle complete signal), analog signals (4-20 mA or 0-10V) proportional to batch progress for process feedback or chart recording, pulse outputs for retransmission or remote totalizing, or digital communication protocols (RS-232, RS-485, Modbus RTU, Modbus TCP/IP, Ethernet/IP) for integration with PLCs, distributed control systems (DCS), SCADA systems, batch management software, or MES platforms for automated batch documentation, production tracking, quality records, and regulatory compliance (FDA 21 CFR Part 11, GMP batch records, HACCP documentation). - Batch Reset and Sequencing:
After batch completion, this Digital Panel Meter can be configured for manual reset (operator pushbutton to reset totalizer to zero for next batch), automatic reset (totalizer automatically resets to zero after relay activation for continuous automated batching), remote reset (digital input or Modbus command triggers reset for PLC-controlled batch sequences), or batch sequencing mode (automatic reset and restart for lights-out continuous batch production with cycle counting and total batch tracking). - Calibration and Configuration:
Users can calibrate this Digital Panel Meter using known volumes or quantities (running calibration batches with measured reference quantities), configure pulse input types (TTL, NPN, PNP, contact closure, voltage pulse), select measurement modes (batch total, rate, batch total with rate display, percentage complete), set K-factors or scaling multipliers (pulses per gallon, pulses per liter, pulses per pound, pulses per part), program batch setpoints (primary target for relay activation, secondary pre-warning threshold, alarm limit for overfill protection), configure overshoot compensation (early cutoff value or percentage), select reset options (manual, automatic, remote, timed delay), adjust debounce filter time constants, select display modes (batch total, remaining quantity, percentage, alternating display), or set communication parameters to suit specific application requirements for filling operations, dispensing systems, batch mixing, or packaging control.
Technical Specifications
A typical Digital Panel Meter for batch controller pulse input includes:
- Pulse Input Types: TTL (0-5V), NPN/PNP open collector, contact closure, voltage pulse (0-30V), sine wave
- Pulse Frequency Range: 0.001 Hz to 10 MHz
- Counter Capacity: 32-bit (4.3 billion counts)
- Totalization Accuracy: ±1 count
- K-Factor Range: 0.000001 to 999,999 (programmable)
- Batch Setpoints: 1-4 programmable presets
- Overshoot Compensation: Adjustable (pulses or percentage)
- Display: 5-6 digit LED or LCD, 0.56" character height
- Display Modes: Batch total, remaining, percentage, rate, alternating
- Reset Options: Manual, automatic, remote, timed
- Debounce Time: 0.1 ms to 100 ms (adjustable)
- Update Rate: 0.1-10 updates per second
- Relay Outputs: 2-4 SPDT relays, 5A @ 250VAC
- Relay Functions: Batch complete, pre-warning, alarm, cycle signal
- Analog Output: 4-20mA or 0-10V (optional, proportional to batch progress)
- Pulse Output: Scaled pulse retransmission (optional)
- Communication: RS-232, RS-485, Modbus RTU/TCP, Ethernet/IP
- Data Logging: Batch records with timestamps (model dependent)
- Power Supply: 85-265VAC or 12-48VDC universal
- Operating Temperature: -10°C to 60°C
- Environmental: IP65 front panel protection
Key Features of a Digital Panel Meter for Batch Controller Pulse Input
This Digital Panel Meter for batch controller pulse input applications includes features that enhance performance and usability:
- Batch Control Functionality: Programmable batch setpoints (1-4 presets for primary target, secondary warning, alarm limit, cycle signal) and relay outputs (2-4 SPDT relays rated 5A) enable precise automated control of batch processes, eliminating manual valve operation, ensuring batch repeatability (±1 count accuracy, typically ±0.1% of batch size or better), preventing human error, supporting lights-out operation, and automating repetitive filling, dispensing, or batching tasks for consistent quality and reduced labor costs.
- High Accuracy: Precision 32-bit counters (±1 count totalization accuracy), stable time base, programmable K-factor scaling with up to 6 decimal places, and advanced debounce filtering ensure reliable pulse totalization and batch control accuracy (typically ±0.1% of batch target or ±1 count, whichever is greater), even for high-speed pulse trains (up to 10 MHz from high-flow turbine meters), low-frequency events (slow filling or dispensing), or noisy signals from mechanical contacts, critical for quality control, regulatory compliance, and minimizing material waste or product giveaway.
- Customizable Displays: High-brightness multi-color LEDs (red for normal operation, green for batch in-progress, amber for batch complete, red for alarm), dual-line displays showing batch total and remaining quantity simultaneously, bar graphs for visual batch progress indication (0-100%), or large 5-6 digit displays (0.56" to 0.8" character height) with status LEDs (batch active, relay status, alarm) ensure readability, provide comprehensive batch information at a glance, and support operator awareness in various lighting conditions from dimly lit production areas to bright outdoor filling stations.
- Programmable Alarms and Control: Multiple relay setpoints for batch totals (primary batch complete relay closes valve at 1000 gallons, secondary pre-warning relay at 950 gallons alerts operator, alarm relay at 1050 gallons prevents overfill), rate limits (low-flow alarm indicating supply problem or pump failure), or time-based alarms (maximum batch time exceeded indicating abnormal fill rate) trigger visual and audible alerts, activate relay outputs to control external devices such as stopping pumps, closing valves, halting conveyors, signaling batch completion to PLCs, or activating rejection mechanisms for quality control.
- Communication Options: Multiple protocols including Modbus RTU (RS-485), Modbus TCP/IP, Ethernet/IP, or ASCII serial enable integration with PLCs, SCADA systems, batch management software (Wonderware, FactoryTalk, Ignition), MES platforms, or ERP systems for automated batch data collection (batch totals, cycle times, setpoint values, relay status), remote monitoring and control (start/stop batches, adjust setpoints, reset totalizer), batch record documentation (timestamps, operator ID, material lot numbers), production reporting, inventory management, and regulatory compliance (FDA 21 CFR Part 11 electronic records, GMP batch manufacturing records, HACCP critical control point documentation).
- Rugged Design: IP65-rated stainless steel (for food, pharmaceutical, or chemical applications) or polycarbonate front panels resist dust, moisture, chemical splash, oils, and washdown in food processing, pharmaceutical manufacturing, or chemical plant environments, wide operating temperature ranges (-10°C to 60°C), shock and vibration resistance (IEC 60068), and EMC compliance (CE, UL) ensure reliable operation in harsh production floors, outdoor filling stations, or mobile batch equipment near motors, pumps, or electrical switchgear.
- Overshoot Compensation: Programmable early cutoff (activating batch complete relay before setpoint is reached by specified number of pulses or percentage) accounts for valve closure delay (solenoid valve response time), flow momentum (fluid continues flowing after valve closure command), system response time, or pump shutdown delay, preventing batch overfill, reducing material waste or product giveaway, and improving batch accuracy to within ±0.1% or better.
- Automatic Batch Reset and Sequencing: Automatic totalizer reset to zero after batch completion enables continuous automated batching for lights-out operation without operator intervention, batch cycle counting (tracking number of completed batches per shift or day), and seamless integration with automated filling lines or packaging operations.
- Multiple Display Modes: Selectable display showing batch total, remaining quantity to target (target - current), percentage complete (current / target × 100), instantaneous rate, or alternating between these values provides operators with comprehensive batch status information.
- Data Logging and Batch Records: Internal memory stores batch totals, cycle times, completion timestamps, alarm events, or operator actions for quality documentation, traceability, troubleshooting, and regulatory compliance with audit trails.
Applications of a Digital Panel Meter for Batch Controller Pulse Input
This Digital Panel Meter is widely used for batch control and pulse totalization in various applications. Key uses include:
- Automated Flow Batching and Filling:
In fluid dispensing systems, filling lines, or batching operations, this Digital Panel Meter totalizes pulses from turbine or positive displacement flow meters (1000 pulses per gallon, 100 pulses per liter) to automatically control batch sizes by closing solenoid valves or stopping pumps when preset volumes are reached (filling containers with precise liquid volumes like 5 gallons, 20 liters, 55 gallons, or 1000 liters), ensuring fill accuracy (±0.1% typical), preventing overfilling that wastes product or creates safety hazards, maintaining batch-to-batch consistency for quality, and enabling automated filling operations without operator intervention. - Chemical and Ingredient Dispensing:
In manufacturing, chemical processing, or recipe batching, this Digital Panel Meter counts pulses from material flow meters or mass flow controllers to automatically dispense exact quantities of chemicals, additives, or ingredients by activating relay outputs to close metering valves when batch targets are met, ensuring precise formulation (maintaining recipe ratios within ±0.1%), preventing costly batch errors from incorrect material quantities, supporting GMP or HACCP documentation with batch records, and enabling automated dispensing systems for consistent product quality. - Packaging Systems and Production Counting:
In packaging lines, bottling operations, or assembly processes, this Digital Panel Meter totalizes pulses from item counters, photoelectric sensors, or proximity switches to automatically control batch quantities (counting 12 bottles for a case, 100 parts for a box, 1000 components for a container), triggering relay outputs to stop conveyors, activate diverter gates, or signal packaging equipment when preset counts are reached, optimizing production flow, ensuring accurate package counts, reducing labor for manual counting, and supporting production tracking and inventory control. - Inventory Tracking and Material Management:
In storage systems, tank farms, or warehouse operations, this Digital Panel Meter totalizes pulses from sensors to track cumulative quantities of processed materials, dispensed liquids, or transferred products, automatically controlling filling or transfer operations, maintaining running inventory totals, supporting inventory reconciliation (comparing measured totals to book inventory), detecting unauthorized usage or leaks through unexpected total changes, and providing data for just-in-time ordering or production planning. - Process Automation and Batch Sequencing:
In automated production systems, this Digital Panel Meter controls multi-step batch processes by totalizing pulses and activating sequential relay outputs to manage equipment like mixers (start mixing when ingredient total reached), pumps (transfer to next vessel when batch complete), or fillers (start filling next container), enabling automated batch sequences, reducing operator intervention, improving production efficiency, and supporting lights-out manufacturing operations. - Water Treatment Chemical Dosing:
This Digital Panel Meter controls automated chemical feed systems by totalizing flow pulses and triggering batch additions of treatment chemicals (chlorine, coagulants, pH adjustment) based on water volume processed, ensuring proper dosing ratios and regulatory compliance. - Fuel Dispensing and Custody Transfer:
Automates fuel or lubricant dispensing by totalizing flow meter pulses and closing delivery valves when preset batch volumes are reached, supporting accurate custody transfer, preventing tank overfills, and providing delivery records.
Where Is a Digital Panel Meter for Batch Controller Pulse Input Used?
This Digital Panel Meter is essential in industries requiring precise batch control and pulse totalization. With support for various pulse signal types and a compact 1/8 DIN design, this Digital Panel Meter provides reliable solutions. Below are detailed use cases across key sectors:
- Food and Beverage Processing:
In bottling plants, juice production, dairy processing, or food ingredient batching, this Digital Panel Meter totalizes pulses from flow meters (electromagnetic, turbine, Coriolis with pulse output) to automatically control batch sizes by closing valves or stopping pumps when preset volumes are reached, ensuring precise filling of containers with liquids like juice, milk, sauces, or cooking oil (5-gallon pails, 55-gallon drums, 1000-gallon totes), preventing underfilling (regulatory violations, customer complaints) or overfilling (product giveaway, spillage), maintaining consistent fill weights for quality and fair trade compliance, supporting HACCP critical control point documentation with batch records, ensuring FDA food safety compliance, and enabling automated CIP (Clean-In-Place) batching for sanitizer solutions with documented cycle totals. - Chemical Manufacturing and Processing:
In chemical plants, formulation batching, reactor charging, or blending operations, this Digital Panel Meter counts pulses from material flow sensors (Coriolis mass meters, turbine meters, positive displacement meters) to automatically dispense exact quantities of reagents, solvents, catalysts, or chemical intermediates for mixing or reactions by activating relay-controlled metering valves when batch setpoints are met, meeting strict formula specifications (±0.1% accuracy for quality), ensuring stoichiometric accuracy for chemical reactions (preventing incomplete reactions or hazardous conditions), supporting batch manufacturing record documentation for GMP compliance, meeting regulatory standards (OSHA process safety management, EPA chemical reporting), providing audit trails with electronic signatures for FDA pharmaceutical manufacturing (21 CFR Part 11), and enabling validated automated dispensing systems for consistent product quality and regulatory compliance. - Water and Wastewater Treatment:
In municipal treatment plants, industrial wastewater facilities, or water distribution systems, this Digital Panel Meter totalizes pulses from flow meters to automatically control chemical dosing batches (chlorine for disinfection, coagulants for flocculation, polymers for sludge dewatering, caustic or acid for pH adjustment), ensuring accurate treatment chemical application proportional to water flow or based on batch volumes, preventing under-dosing (inadequate treatment, permit violations) or over-dosing (chemical waste, environmental harm, safety hazards), maintaining regulatory compliance with EPA NPDES discharge permits or drinking water standards, supporting SCADA integration for remote monitoring and control, and providing documentation for regulatory reporting and audit trails. - Industrial Manufacturing and Assembly:
In production lines, component assembly, or batch packaging operations, this Digital Panel Meter totalizes pulses from part counters, optical sensors, or proximity switches to automatically control batch quantities (packaging set numbers of components like 100 bolts per bag, 1000 resistors per reel, 500 labels per roll), triggering relay outputs to stop conveyors, activate diverter gates for batch separation, signal packaging equipment, or advance to next production step when preset counts are reached, optimizing production flow and throughput, reducing labor for manual counting and sorting, ensuring accurate package or container counts for quality control and customer requirements, preventing short counts (customer complaints) or over-counts (product giveaway), and supporting MES integration for production tracking, OEE calculations, and inventory management. - Oil and Gas Industry:
In fuel dispensing terminals, pipeline batch transfers, lubricant filling, or tank truck loading, this Digital Panel Meter totalizes pulses from turbine meters, Coriolis meters, or positive displacement meters (high-accuracy custody transfer meters) to automatically control batch deliveries of crude oil, refined fuels (gasoline, diesel, jet fuel), or lubricants by closing loading valves when preset volumes are reached (8000 gallons for tank truck, 42 gallons for drum, 500 gallons for tote), ensuring accurate volume transfers for billing and custody transfer, preventing tank overfills (safety hazards, environmental spills), supporting regulatory reporting to pipeline operators or Department of Transportation, meeting API measurement standards (API 2540, API MPMS Chapter 21.2) for custody transfer accuracy, and providing delivery documentation with batch totals, timestamps, and product identification. - Pharmaceutical Manufacturing:
In drug production, API synthesis, formulation batching, or sterile filling, this Digital Panel Meter totalizes pulses from material flow sensors to automatically control batch sizes for precise ingredient dispensing (active pharmaceutical ingredients, excipients, solvents, purified water), ensuring formula accuracy critical for drug efficacy and safety, meeting stringent regulatory requirements (FDA current Good Manufacturing Practices, EU GMP Annex 11 for computerized systems), supporting batch manufacturing record documentation with validated measurement systems (IQ, OQ, PQ), providing audit trails with electronic signatures for 21 CFR Part 11 compliance, enabling automated dispensing to reduce contamination risk and improve operator safety, and ensuring batch-to-batch consistency for product quality and regulatory compliance. - Packaging and Logistics:
In distribution centers, packaging lines, or sorting facilities, this Digital Panel Meter counts pulses from package sensors, barcode readers, or conveyor counters to automatically control batch quantities for shipping containers, pallets, or order fulfillment (counting 144 units for a gross, 24 cases for a pallet layer, 500 packages for a shipment), triggering relay outputs to stop conveyors at batch completion, activate pallet wrappers, print shipping labels, or signal warehouse management systems, streamlining packing and shipping processes, reducing manual counting errors, optimizing warehouse throughput, ensuring accurate order fulfillment, and supporting inventory tracking and shipping documentation. - Concrete and Cement:
This Digital Panel Meter controls automated batching of concrete ingredients (cement, sand, aggregate, water, admixtures) by totalizing weight-based pulses from belt scales or flow meters, ensuring precise mix designs, consistent concrete quality, and batch documentation for quality control. - Paint and Coatings:
Automates batch formulation by totalizing pulses from flow meters dispensing pigments, resins, solvents, or additives, ensuring color consistency, meeting formula specifications, and providing batch traceability for quality assurance. - Agriculture and Fertilizer:
This Digital Panel Meter controls automated fertilizer or chemical application by totalizing pulses from flow meters, ensuring proper application rates per acre, preventing over-application (environmental concerns, regulatory limits), and documenting application for regulatory compliance.
Benefits of Using a Digital Panel Meter for Batch Controller Pulse Input
This Digital Panel Meter offers numerous advantages for batch controller pulse input applications:
- Precise Automated Batch Control: Programmable batch setpoints (±1 count accuracy, typically ±0.1% of batch size) and automatic relay outputs eliminate manual valve operation, ensure consistent batch-to-batch repeatability critical for quality control and regulatory compliance, prevent human errors from manual batching (incorrect quantities, missed shutoff, valve left open), support lights-out automated operation reducing labor costs, and enable precise control of filling, dispensing, or batching processes for optimal material utilization and minimal waste.
- High Accuracy: Precision 32-bit pulse counting (±1 count totalization accuracy), accurate K-factor scaling, programmable debouncing for noise immunity, and overshoot compensation ensure reliable batch control accuracy (typically ±0.1% of batch target or better), even for high-speed filling operations, low-flow dispensing, or electrically noisy production environments, critical for custody transfer applications, quality assurance, minimizing product giveaway, and regulatory compliance.
- Compact Design: The 1/8 DIN size consolidates pulse counting, batch control logic, relay outputs, display, and communication in one compact panel-mount package, ideal for space-constrained filling stations, packaging lines, or batch control panels, allowing comprehensive automated batch control without requiring separate totalizer plus batch controller plus relay module or larger panel cutouts.
- Versatility: Support for multiple pulse input signal types (TTL, NPN, PNP, contact closure, voltage pulse, sine wave) with programmable trigger levels and debounce times, configurable batch modes (single batch, continuous automatic batching, batch sequencing), flexible K-factor scaling for various flow meters or counters, and multiple relay setpoints (batch complete, pre-warning, alarm) accommodates diverse batching applications from fluid filling and chemical dispensing to production counting and packaging across industries.
- System Integration: Multiple communication interfaces (Modbus RTU/TCP, Ethernet/IP, ASCII) enable seamless connection to PLCs, SCADA, batch management systems, MES platforms, or ERP systems, providing automated batch data collection (batch totals, cycle times, completion timestamps), remote monitoring and control (start/stop batches, adjust setpoints, reset counters), batch record documentation for quality systems and regulatory compliance, production reporting for OEE analysis, and Industry 4.0 connectivity for smart manufacturing.
- Durability: Built to withstand harsh industrial conditions including production floor vibration, temperature extremes (-10°C to 60°C), dust and moisture (IP65/IP67 for food or chemical washdown), chemical exposure (stainless steel or chemical-resistant construction), ensuring reliable long-term operation in demanding food processing, chemical manufacturing, pharmaceutical production, or outdoor filling environments.
- Cost-Effective: Consolidates batch counting, control logic, relay outputs, overshoot compensation, and communication in one instrument, reducing equipment costs (versus separate totalizer + batch controller + PLC programming), panel space requirements, wiring complexity (single power connection, integrated relays, one communication interface), installation time, commissioning effort, and ongoing calibration/maintenance overhead.
- Batch Repeatability and Quality: Automated batch control with precise setpoints ensures consistent batch-to-batch repeatability (±0.1% typical), eliminates variations from manual operation or operator differences, supports statistical process control (SPC) for quality monitoring, and enables tight process control critical for product quality, regulatory compliance, and customer satisfaction.
- Regulatory Compliance Support: Batch record data logging with timestamps, electronic signatures capability, audit trails, and validated measurement accuracy support FDA 21 CFR Part 11 (pharmaceutical electronic records), GMP batch manufacturing records, HACCP critical control point documentation, ISO 9001 quality systems, EPA environmental reporting, or custody transfer requirements (API standards for oil and gas).
- Reduced Material Waste: Accurate batch control with overshoot compensation minimizes product giveaway (overfilling), prevents short batches requiring rework, reduces spillage or overflow, and optimizes material utilization for cost savings and environmental benefits.
Choosing the Right Digital Panel Meter for Batch Controller Pulse Input
When selecting a Digital Panel Meter for batch controller pulse input applications, consider these factors:
- Signal Compatibility: Ensure this Digital Panel Meter supports the pulse signal types from your flow meters or sensors (TTL for encoders, NPN/PNP for proximity switches or flow meter pulse outputs, contact closure for mechanical totalizers, sine wave for magnetic pickups) and verify input frequency range (0.001 Hz to 10 MHz) covers your application from slow dispensing to high-speed filling or production counting.
- Batch Control Features: Verify support for required batch functions including number of programmable setpoints (1-4 for batch complete, pre-warning, alarm, cycle signal), relay output quantity and ratings (2-4 SPDT relays, 5A @ 250VAC typical for valve control or pump control), overshoot compensation capability (adjustable early cutoff in pulses or percentage), batch reset options (manual pushbutton, automatic reset after batch, remote reset via digital input or communication), batch sequencing (automatic continuous batching), and batch counting (tracking number of completed batches) to meet your process automation requirements.
- Accuracy Specifications: Check the totalization accuracy (±1 count typical), K-factor resolution (number of decimal places for precise scaling), overshoot compensation precision, and overall batch accuracy of this Digital Panel Meter, especially for custody transfer applications (±0.1% required), pharmaceutical batching (validated accuracy for GMP), food filling (weights and measures compliance), or quality-critical processes where batch accuracy directly affects product quality, regulatory compliance, or financial transactions.
- Environmental Durability: Choose a Digital Panel Meter with appropriate IP ratings (IP65 for dusty or wet production environments, IP67 for food or pharmaceutical washdown applications requiring frequent cleaning), materials (stainless steel for food/pharma/chemical contact, chemical-resistant polycarbonate for general industrial), operating temperature range (-10°C to 60°C for most settings, wider for outdoor fuel dispensing or extreme environments), and EMC compliance for electrically noisy areas near motors, VFDs, pumps, or electrical switchgear.
- Output Requirements: Determine if you need relay outputs for batch control (number of relays: 2-4, ratings: 5A minimum for solenoid valves, 10A for pump control, Form C/SPDT for safety applications), analog retransmission (4-20mA or 0-10V proportional to batch progress for secondary monitoring or chart recording), pulse output for signal retransmission, or digital communication protocols (Modbus RTU/TCP, Ethernet/IP, BACnet for building automation) for integration with PLCs, SCADA, batch management software, or MES systems.
- Display and Usability: Opt for display features including digit quantity (5-6 digits for large batch totals or high-resolution display), display modes (batch total, remaining quantity, percentage complete, rate, alternating), status LEDs (batch active, relay status, alarm indication), display type (LED for brightness in industrial settings, LCD for low power or outdoor applications with sunlight), digit size (0.56" to 0.8" height) for viewing distance, and controls (front-panel buttons for operator setpoint adjustment, PC software for commissioning, touchscreen for advanced configuration) that match your application needs and operator skill level.
- K-Factor Scaling and Units: Verify the meter supports required K-factor range (0.000001 to 999,999 typical) with sufficient decimal places for your flow meter or sensor calibration, and allows custom engineering units display (gallons, liters, pounds, kilograms, parts, cycles, barrels, cubic meters) for operator clarity.
- Data Logging and Records: Confirm availability of batch record logging (internal memory storing batch totals, timestamps, cycle times, operator ID), data export capability (USB, Ethernet, or communication protocol), and audit trail features for regulatory compliance (GMP, HACCP, FDA 21 CFR Part 11, ISO 9001) or quality documentation requirements.
- Certifications and Approvals: Verify CE, UL, cUL, FM, or other relevant certifications for your application, industry (food processing requires NSF or FDA compliance, pharmaceutical requires validated systems with IQ/OQ/PQ, hazardous areas require FM or ATEX, custody transfer may require weights and measures or API approval), or jurisdiction. For food contact applications, confirm materials meet FDA or EU food contact regulations.
Conclusion
A Digital Panel Meter for batch controller pulse input applications, particularly 1/8 DIN models, is vital for precise automated batch control and totalization in industries like food and beverage processing, chemical manufacturing, pharmaceutical production, water treatment, oil and gas, packaging, and industrial assembly. The advanced batch control capabilities of this Digital Panel Meter supporting programmable batch setpoints with automatic relay triggering, high accuracy (±1 count, typically ±0.1% of batch) with overshoot compensation for precise cutoff, compact design consolidating counting and control functions, and comprehensive features including automatic batch reset and sequencing for lights-out operation, multiple relay outputs for complex batch logic, data logging with batch records for regulatory compliance, and multiple communication protocols for SCADA and MES integration make it ideal for automating repetitive filling, dispensing, or batching processes requiring precision, consistency, and documentation. By delivering reliable automated batch control eliminating manual valve operation and human errors, ensuring batch-to-batch repeatability critical for quality and regulatory compliance, supporting system integration through Modbus, Ethernet, and other protocols for automated batch documentation and production tracking, ensuring regulatory compliance for FDA 21 CFR Part 11, GMP batch records, HACCP critical control points, and custody transfer requirements, and providing cost-effective consolidation of totalization, control logic, and relay outputs in one instrument, this Digital Panel Meter enhances process efficiency, ensures product quality and consistency, reduces labor costs and material waste, enables lights-out automated operation, and provides comprehensive batch monitoring and control across diverse applications from fluid filling and chemical dispensing to production counting and batch packaging. Whether for automated bottling lines, chemical batch reactors, pharmaceutical dispensing systems, or production packaging operations, this Digital Panel Meter provides dependable, accurate, automated batch control in a compact, feature-rich package that meets the demanding requirements of modern automated manufacturing, process control, and regulatory compliance.
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