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Laureate™ Remote Displays (or Serial Input Meters) are slave displays which accept RS232, RS485 or USB data from computers, programmable controllers, Laureate instruments, or other devices with a streaming serial data output. They can also provide relay closures and an analog output based on the received readings. They blend in with 1/8 DIN Laureate digital panel meters, counters and timers to provide a numeric 6-digt display from -999,999 to +999,999.
Streaming serial data can be generated at rates up to 9600 baud by a weighing scale or other instrument. In particular, it can be generated by a Laureate digital panel meter, counter/timer or transmitter. A Remote Display can duplicate the reading of that instrument, or it can be used to display additional data items which can be transmitted serially, but which cannot be shown simultaneously on a single display. For example, while a Laureate counter can only display one selected parameter at a time (such as rate A), it can transmit multiple parameters (such as rate A, rate B, ratio A/B and peak). The Remote Display can be set up to display any serially transmitted item, and an indicator light shows which item has been chosen for display.
Setup of the Remote Display uses Laurel’s free Instrument Setup (IS) software. Selectable modes allow easy interface to other Laureate instruments and extract 1, 2 or 3 data items. For other instruments, readings can be extracted from streaming ASCII strings that contain multiple data values and non-numeric characters, such as Start and Stop characters. Any number of characters between the Start character and the data can be masked Off. Up to 8 display characters (including sign and decimal point) can be masked On. Any number of characters between the last displayed character and the Stop character can be masked Off.
An optional isolated analog output board allows the Remote Display to serve as a highly accurate 16-bit digital-to-analog converter and transmitter.
An optional relay output board with 2 or 4 relays can add remote alarm or control capability. The relays can be 8A contact relays or opto-isolated 120 mA AC/DC solid state relays. The relays can respond to the transmitted values or to any of 8 serially transmitted control characters. The control characters can be generated by a Laureate meter, counter or timer, thereby assuring that the local and remote alarm points are identical.
| Display | |
|---|---|
| Readout | 6 LED digits, 7-segment, 14.2 mm (.56"), red or green. |
| Range | -999999 to +999999 |
| Indicators | Four LED lamps |
| Power | |
| 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 (typical, base meter) | 1.2W @ 120 Vac, 1.5W @ 240 Vac, 1.3W @ 10 Vdc, 1.4W @ 20 Vdc, 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 |
| Serial Interface (one required) | |
| Board selections | RS232, USB, RS485 (dual RJ11), RS485 (dual RJ45), | ASCII data rates | 300 to 9600 baud |
| Isolation | 250V rms working, 2.3 kV rms per 1 min test |
| Analog Output (optional) | |
| Output levels | 4-20 mA, 0-20 mA, 0-10V, -10 to +10V |
| Current compliance | 2 mA at 10V ( > 5 kΩ load) |
| Voltage compliance | 12V at 20 mA (< 600Ω load) |
| Scaling | Zero and full scale adjustable from -99999 to +99999 |
| Resolution | 16 bits (0.0015% of full scale) |
| Isolation | 250V rms working, 2.3 kV rms per 1 min test |
| Relay Outputs (optional) | |
| Dual magnetic relays | 2 Form C, 8A at 250 Vac or 24 Vdc, 0.3A at 250 Vdc, resistive load |
| Quad magnetic relays | 4 Form A (NO), 8A at 250 Vac or 24 Vdc, 0.3A at 250 Vdc, resistive load |
| Dual solid state relays | 2 Form A (NO), 120 mA at 140 Vac or 180 Vdc, resistive load |
| Quad solid state relays | 4 Form A (NO), 120 mA at 140 Vac or 180 Vdc, resistive load |
| 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 |
| Environmental | |
| Operating temperature | 0°C to 55°C |
| Storage temperature. | -40°C to 85°C |
| Relative humidity | 95% at 40°C, non-condensing |
| Protection | NEMA-4X (IP-65) when panel mounted |
| Duty Cycle & Pulse Width Modulation (PWM) Modes | |
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| Monitoring Laser OperationPM and Speed | |
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The display of a Laureate counter can be augmented by up to three slave displays to show up to four parameters simultaneously : Items #1, #2, #3 and peak rate (if rate was one of the selected items). All four parameters can also be displayed at a remote location. |
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