RT98: RTD Transmitter

- Linearizing for Pt 100 sensor

- Programmable range

- 2 Isolated outputs

- Isolation input to output to power supply

- True lead length compensation


            RTD transmitter RT98 are compactly designed for converting the variations of resistance in a Pt100 temperature sensor to a linearized and isolated DC. voltage or current output. They provide constant current excitation and true lead length compensation when used with a 3 - wire RTD, which can be located at a considerable distance from the transmitter.


RTD Input

Number of channel:

1 Channel

Input type:


Input range:

Pt 100 DIN or JIS (3 wire type)

Lead wire resistance 5 Ω/wire max.

Rangeable zero from (-)100 °C to 100 °C

Rangeable span from 15 °C to 500° C

Other types of RTD input available Cu 100, Pt 1000

Analog Output

Number of channel:

2 Channels

Output type:

Current, Voltage

Output range:

Current (0 to 20, 4 to 20 mA)

Voltage (0 to 1, 0 to 5, 1 to 5, 0 to 10 VDC)


< ± 0.2% of span

Output Load Resistance:

Current (max. 1000 Ω load)

Voltage (min 1000 Ω load)

Isolation voltage:

500 VAC Between input,output and power supply (1min. test)

Power Requirements

Power Supply:

100, 110, 220 VAC

24 VDC (Optional)

Environmental Limits

Operating Temperature:

0 to 55 °C

Operating Humidity:

5 to 95 %RH

Storage Temperature:

0 to 70 °C

Physical Characteristics


W50 x H70 x D130mm.


Wall or DIN rail


Plug-in 11 pins socket


Warranty Period:

5 year

Ordering Information: Specify sensor type, input range, output1, output2, power supply
Example RT98/Pt 100/0-200 C/4-20 mA/1-5 VDC/220 VDC



Package Checklist

1. RT98