LT81VF3 Laurel Electronics LT Transmitter Part Number LT81VF3 Analog Input Totalizer Transmitter, 0-10V Input, Extended Capabilities, 4-20 mA Analog and RS232/RS485 Outputs, Dual 120 mA Relays, 10-48 Vdc Power

LT Transmitter Part Number LT81VF3 by Laurel Electronics is an analog input rate transmitter and totalizer with a voltage-to-frequency signal conditioner. Standard features include a user scalable 4-20 mA, 0-10V or +/-10V analog output, Extended capabilities, RS232 or RS485 data I/O, and two 120 mA solid state relays. The unit can be scaled to transmit rate or totalized rate to six digits for 0-1 mA, 4-20 mA or 0-10V analog process signals. For example, the unit can be scaled to transmit flow rate in gallons/minute or liters/sec, or to show volume in gallons or liters from the 0-10V output of a flow transducer. Or the display can be scaled to display power consumption in kilowatts or total utilized energy in kilowatt-hours based on the 0-1 mA output of a watt transducer. Square root extraction is selectable and can be applied to rate or total. This makes this transmitter ideal for use with differential pressure flow meters with a squared output. Totalized volume is based on linearized rate. Accuracy is an exceptional +/-0.005% of span +/-1 count. A built-in isolated 5, 10, or 24 Vdc excitation supply can power sensors. The Modbus protocol is fully supported for data transmission as is the simpler Custom ASCII protocol. 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.