BA_054 Rev 1K7 Resistance thermometer
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3.1 Electrical Connection
Complete the mechanical installation before you connect the device electrically.
Set up all electrical connections while the voltage supply is switched off.
M12 circular connector
cable gland
3-wire circuitry
transmitter
3-wire circuitry
ϑ
(+)
(-)
n.c.
n.c.
2
6
ϑ
1
Figure 1: Variants of electrical connection
Route the cable so that it does not apply force or torque to the measuring insert.
For devices with field housing, hold the housing with the other hand when you screw or
unscrew the field housing cap.
4
Operation
During operation, take care that the device remains within its intended pressure and tem-
perature ranges. No other monitoring is necessary.
Permissible media temperature:
-40…150 °C
Permissible ambient temperature:
-40…100 °C
When supplied with a transmitter, the permissible ambient temperature is reduced to 85°C.
Restricted ambient conditions may apply in explosion protected environments (see
XA_001).
4.1 Maintenance / Service
When properly installed in accordance with applicable specifications, this device is
maintenance-free. However, we recommend an annual recalibration of the device.
5
Disassembly
When measuring hot media, make sure that the device has cooled down prior to any dis-
mounting or wear appropriate protective clothing to avoid burns.
Switch off the power supply to the device before disconnecting the electrical connections.
Once this is done, the device may be mechanically removed.