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Electrical Transducers
LP-TRD Pt100 Temperature Transducer

LP-TRD Pt100 MODBUS® Temperature Transducer

The LP-TRD converts the resistance value of a Pt100 Platinum resistance element into a MODBUS® protocol, RS485 signal proportional to temperature.
The three wire method of connection is used and the Pt100 signal is fully linearised using a combination of hardware and software.

Basic Specifications:
InputPt100 platinum resistance sensor
Three lead with compensation or two lead sensor without compensation
Standard range: 0 - 400°C (others on request)
Sensing current: 5mA dc
OutputMODBUS® protocol on RS485 twisted pair
: 12 bit resolution in 16 bit unsigned integer
: 0 - 400°C = 0 - 4000, lsb = 0.1°C
Baud rate: 9.6/19.2 kBaud
Accuracy: Class B to DIN 43760 ±((0.3 + 0.005t)°C, Class 0.5
Range: 0 - 100%
Power Supply: 24V, 110V, 230/240V ac ±20%, 1.5VA
: 24V dc ±20% or 110V/125V dc (88V-138V), 2W
IsolationGalvanic isolation between input, output circuit and auxiliary supply
Test voltage: 2kV 50Hz ac for 1 minute
TemperatureOperating: 0°C to +23°C to +60°C
EMC Compliance: AS/NZS 61000.6.3:2012
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Carrel Electrade Limited
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