Operation
31
Operating Instructions Radiation sensors R3XX
4 Operation
4.1 Measurement operation
Once the auxiliary power has been switched on, measurement operation can
be commenced.
Further operation depends on what the sensors are being used for. Please
consult the operating instructions for the connected equipment (e.g. display,
recording instruments, controllers).
Please heed the following during measurement operation:
The sensor’s measurement opening must be clean. Dust deposits or
moisture may falsify the measured values and must therefore be
removed.
Precision specifications are only valid for the measurement range
specified on the sensor.
The radiation sensors must not be subjected to any radiation that is far
above the largest measurement range value for the series in question
(approximately 30 %). It is important that the radiation sensor does not
exceed the permissible operating temperature.
Please also heed the safety precautions in Section 2.
Error messages
The following error messages can be displayed:
Above upper measurement range limit (“Messbereichsüberschreitung”)
This message is displayed if the value exceeds the preset measurement
range by more than 1 %.
(measurement range = upper range limit – lower range limit)
Below lower measurement range limit (”Messbereichsunterschreitung”)
This message is displayed if the value falls short of the preset measurement
range by more than 1 %.
(measurement range = upper range limit – lower range limit)
4.2 Configuration
Under various operating conditions it is necessary to select or change
certain settings. Configuration is carried out using an interface with a HART
®
protocol.
A HART
®
programming device or a suitable PC software solution needs to
be used in order to change parameters. The HART® commands are
described in Section 7.
Sensors R 310, R 311, R 312 and R 320 can also be configured using
measured value transmitter TR 41-10.
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