Electrical connections, 2 power supply, 3 inputs / outputs – KROHNE OPTITEMP TC 100 Ex EN User Manual
Page 11
ELECTRICAL CONNECTIONS
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OPTITEMP TR/TC100
www.krohne.com
08/2010 - 4001022701 - Ex AD OPTITEMP TR/TC 100 R01
4.2 Power supply
As required for further information about the power supply to the measuring inserts refer to
Electrical data on page 8.
4.3 Inputs / Outputs
4.3.1 Pt100 measuring inserts
A measuring insert with a Pt RTD is connected according to DIN EN 60751 in three different
wiring variants (from left to right: 2, 3 and 4 wire switch):
DANGER!
If you are operating the measuring insert together with a transmitter, pay attention to the details
about the power supply in the Ex documentation of the transmitter used. Also observe the
maximum values of the sensor circuit.
TR 100: Wiring (simple design)
1 white
2 red
.book Page 11 Wednesday, August 11, 2010 11:40 AM