4-20 mA and Modbus DIN Rail Transmitters by Laurel Electronics

Same high performance, signal conditioners & programmable
features as Laureate™ digital panel meters, counters & timers.

Standard Features

Choice of analog, pulse or serial input signal conditioners.

4-20 mA, 0-20 mA or 0-10V transmitter output, jumper selectable, isolated.

Analog output resolution: 0.0015% of span (16 bits).

Analog Output accuracy: ±0.015% of span.

RS232 or RS485 serial communications, half or full duplex, isolated.

Modbus RTU, Modbus ASCII or Laurel ASCII protocol.

Output update rate to 60/sec.

Switching power supply operates from 95-240 Vac ±10%

Dual solid state relays for alarm or control.

5, 10 or 24 Vdc transducer excitation output, isolated.

Easy setup using PC-based Instrument Setup Software.

DIN rail mount housing only 22.5 mm wide.

Detachable screw-clamp connector.
Options:

Extended main board for custom curve linearization & rate from successive readings.

Low voltage power 10-48 Vdc or 12-30 Vac.

Product Line Overview

Laureate DIN rail transmitters can measure a wide range of physical parameters with a choice of seven plug-in signal conditioners. The transmitters duplicate the high performance (high accuracy, high read rate) and extensive programmable features of 1/8 DIN Laureate digital panel meters, counters and timers. They utilize the same signal conditioners, much of the same firmware, and the same Windows-based instrument setup software, but come in a DIN rail mount package that is only 22.5 mm wide. Standard features include serial communications (isolated), an analog output (isolated), a transducer excitation output (isolated), and dual solid state relays (isolated) for alarm or control. The transmitters are available in three types:

LTS6 Serial-to-Analog transmitter. Converts RS232 or RS485 input to isolated 4-20 mA or 0-10V output.
LTA Series 4-20 mA or 0-10V analog output transmitters. Wide choice of analog or pulse inputs, isolated analog output. Setup is via RS232 and RS485 (standard).
LTM Series Modbus & serial I/O transmitters. Wide choice of analog or pulse inputs, isolated RS232 or RS485 output, half or full duplex. Modbus or Laurel ASCII protocols are user selectable.

	Signal Type & Function (Click on buttons for link to web page)	4-20 mA output Transmitters	Serial I/O Transmitters
1	DC Voltage or Current
2	AC rms Voltage or Current
3	Process Voltage or Current
4	Strain Gauge or Potentiometer
5	Load Cell & Microvolt Signals
6	Temperature
7	Serial Input (Serial to Analog Converter)
8	Frequency, Rate, Speed
9	Pulse Input Totalizer
10	Process Signal Totalizer
11	Sum, Difference, Ratio, Product
12	On/Off Duty Cycle
13	Stopwatch Timing for Single Events
14	Average Time of Periodic Events
15	Batch Control
16	AC Phase Angle
17	Quadrature Position or Rate

Laureate™ DIN Rail Transmitters