Siemens SITRANS TK, Operating Instructions Manual

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Operating instruction 7NG312*--1JN01, 7NG312*--2JN01
38
SITRANS TK/TK-H
A5E00226012--02
3 Commissioning
The transmitter’s parameters must be chosen to suit the requirements of the task in hand. Make sure
that the parameters and the data on the rating plate correspond.
Close the cover of the terminal housing after connecting the sensor and the auxiliary power supply.
When the auxiliary power is activated, the transmitter assumes operation after a start up time of
around 3 seconds.
3.1 Functions
When using SITRANS-TK, the following functions can be executed via the SIPROM TK parameterisa-
tion software, or, when using SITRANS TK-H, they can be executed via the SIMATIC PDM parame-
terisation software or the hand-held communicator (for a description, see Chapter 4.2 Operation with
the hand-held communicator)
- Set the high output current limit
- Store the measuring point identification data
- Set the sensor type and the type of input connection
- Set the measuring range, the unit and the attenuation
- Set the output current in the event of a fault
- Open-circuit monitoring
- Current sensor function (SITRANS TK-H)
- Sensor trimming (SITRANS TK-H)
- Restore works calibration (SITRANS TK-H)
- Measure line resistance
3.2 Output current in the event of a fault
The sensor lines and the electronic circuitry of the transmitter are constantly monitored. In the event of
a fault, the output current is set to 3.6 or 23.0 mA. The respective value can be set.
3.3 Open-circuit monitoring
Open-circuit monitoring takes place during resistance measurement, resistance thermometer mea-
surement and thermocouple measurement, but not voltage measurement.