LT Transmitter Signal Input & Function | Model Series |
Analog Output |
RS232 & RS485 |
Dual Relays |
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1 | Quad 4-20 mA Loop Splitter | QLS | ![]() |
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2 | DC Voltage or Current | LT-DC | ![]() |
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3 | AC RMS Voltage or Current | LT-RM | ![]() |
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4 | Process Voltage or Current | LT-P | ![]() |
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5 | Strain Gauge or Potentiometer Follower | LT-SG | ![]() |
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6 | Load Cell & Microvolt Signals | LT-WM | ![]() |
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7 | Thermocouple (Types J, K, T, E, N, R, S) | LT-TC | ![]() |
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8 | RTD Temperature | LT-RTD | ![]() |
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9 | Resistance in Ohms | LT-R | ![]() |
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10 | Frequency, Rate, Speed | LT-FR | ![]() |
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11 | Pulse Input Totalizer | LT-FR | ![]() |
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12 | Process Signal Totalizer | LT-VF | ![]() |
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13 | Sum, Difference, Ratio, Product of 2 Inputs | LT-FR | ![]() |
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14 | On/Off Duty Cycle | LT-FR | ![]() |
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15 | Stopwatch Timing for Single Events | LT-FR | ![]() |
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16 | Average Time of Periodic Events | LT-FR | ![]() |
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17 | AC Phase Angle and Power Factor | LT-FR | ![]() |
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18 | Quadrature Position or Rate | LT-QD | ![]() |
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LT series DIN rail transmitters & signal conditioners can be interfaced to a wide range of sensors and transducers using one of seven available plug-in signal conditioner boards. The transmitters duplicate the high performance (high accuracy, high read rate) and extensive programmable features of Laureate 1/8 DIN digital panel meters, counters and timers. They utilize the same signal conditioners boards, much of the same firmware, and the same Windows-based free Instrument Setup Software. They come in a compact DIN rail mount package with detachable screw-clamp connectors for easy wiring.
The LT series transmitters accessible from this page include a 4-20 mA, 0-20 mA, 0-10V, or -10V to +10V analog output (isolated, user selectable), an RS232 or RS485 serial data interface (isolated, user selectable), and dual 120 mA solid state AC/DC relays (isolated). An isolated 5, 10 or 24 Vdc transducer excitation output is included with all models other than those with a temperature or AC RMS signal conditioner.
For use on a local area network (LAN), up to 30 LT series transmitters can be jumpered for RS485 and be daisy chained to a meter or counter with Laurel's Ethernet-to-RS485 converter board. As an alternative, Laurel's LTE series Ethernet transmitters can be connected directly to a LAN via an Ethernet cable. In both cases, setup is easily achieved using Instrument Setup Software for node discovery and setup of each transmitter.