Commissioning; Installation Check; Function Check - Endress+Hauser iTEMP RTD TMT 187 Operating Instructions Manual

Temperature head transmitter

Installation check

Commissioning

Function check

6 Commissioning
6.1 Installation check
Monitor all connections making sure they are tight. In order to guarantee fault free
operation the terminal screws must be tight onto the connection cables. The unit is now
ready for operation.
6.2 Commissioning
Once the power supply has been connected the head transmitter is operational.
6.3 Function check
Measuring the analogue 4-20 mA output signal or following failure signals:
Measurement range
undercut
Measurement range
excess
Sensor break; sensor
short circuit
When using earthed thermocouples screening of the output
cable (4 ... 20 mA cable) is recommended.
In plants with strong EMC problems screening of all cables
with a low ohm connection to the transmitter housing is
recommended.
Fig. 6:Screening on remote installation
linear fall to 3.8 mA
linear rise to 20.5 mA
≥ 21.0 mA
6 Commissioning
27