Electrical Connection - WIKA TR Manual De Instrucciones

6. Commissioning, operation

6.1 Electrical connection

CAUTION!
Damage to cables and wires, and to connection points must be avoided
■
EN
Flying leads with bare ends must be finished with ferrule ends (cable preparation)
■
Both the internal capacitance and inductance must be considered
■
The electrical connection is to be made according to the sensor connections/pin assignments
shown below:
Thermocouples with terminal block
Single thermocouple
Resistance thermometers with terminal block
1 x Pt100, 2-wire
white
2 x Pt100, 2-wire
red
yellow
12
The colour coding at the
positive connection to the
devices always decides the
correlation of polarity and
connection terminal.
1 x Pt100, 3-wire
red white
red
white
2 x Pt100, 3-wire
red
white
black yellow
red
white
black
yellow
WIKA operating instructions resistance thermometers, thermocouples
Dual thermocouple
1 x Pt100, 4-wire
red white
red
white
red
red
white
2 x Pt100, 4-wire
white
white
yellow
black
red
red
white
black
black
yellow
red
red
red
red
white
white
red
black
red
red
white
white
black
black
yellow
yellow