Laurel Electronics LT Transmitter Part Number LT20DCA2 DC Current Input Transmitter, +/-20.000 mA Range, 4-20 mA Analog and RS232/RS485 Outputs, Dual 120 mA Relays, 85-264 Vac Power

LT Transmitter Part Number LT20DCA2 by Laurel Electronics is a programmable DC current input transmitter with a DC signal conditioner set to the -20.000 to +20.000 mA DC range. Standard features include a user scalable 4-20 mA, 0-10V or +/-10V analog output, RS232 or RS485 data I/O, and two 120 mA solid state relays. Five voltage ranges from +/-200.00 mV to +/-600.0V and four current ranges from +/-2.0000 mA to +/-5.000A are jumper selectable. All signal ranges are factory calibrated with calibration factors stored in EEPROM on the signal conditioner board. This allows ranges and signal conditioner boards and ranges to be changed in the field without recalibrating the transmitter. Input and output resolutions are 16 bits. Error is less than 0.01% of full scale +/-2 counts at read rates up to 60/sec. Such high read rates are ideal for peak and valley capture, accurate analog output, and fast relay response. Zero and span are programmable from 0 to +/-99999 counts. Custom scaling and the 200 mV range make the transmitter ideal for use with current shunts. The Modbus protocol is fully supported as is the simpler Custom ASCII protocol. A 5V, 10V and 24V transducer excitation output is standard. Power and all inputs and outputs are mutually isolated. The transmitter snaps onto a 35 mm DIN rail and is only 22.5 mm (0.89 inch) thick. It is certified to CE, RoHS, and ETL / UL standards.