Pyromation T82 - Manual (Page 54)

Operating menu and parameter description T82
54
Upper range value
Navigation Setup ® Upper range value
Expert ® Output ® Upper range value
Description Use this function to assign a measured value to the current value 20 mA.
The set point that can be set depends on the sensor type used in the Sensor type (® ä 51)
parameter and the measured variable assigned in the Assign current output (PV)
parameter.
User input Depends on the sensor type and the setting for "Assign current output (PV)."
Factory settings 100
13.2.1 "Advanced setup" submenu
Corrosion monitoring
Sensor connection cable corrosion can lead to false measured value readings. Therefore the unit
offers the possibility of recognizing any corrosion before a measured value is affected. Corrosion
monitoring is only possible for RTDs with a 4-wire connection and thermocouples.
Drift/difference mode
If two sensors are connected and the measured values differ by a specified value, a status signal is
generated as a diagnostic event. The drift/difference mode can be used to verify the correctness of
the measured values and for mutual monitoring of the connected sensors. The drift/difference
mode is enabled with the Drift/difference mode parameter. A distinction is made between two
specific modes. If the In band option is selected (ISV1-SV2I < drift/difference set point), a status
message is output if the value drops below the set point, or if the value exceeds the set point if the
Out band (drift) option is selected (ISV1-SV2I > drift/difference set point).
Procedure for configuring the drift/difference mode
1. Start
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2. For drift/difference monitoring, select Out band for drift detection and In band for difference monitoring.
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3. Set the alarm category for drift/difference monitoring to Out of specification (S), Maintenance required (M) or
Failure (F) as required.
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4. Set the set point for drift/difference monitoring to the desired value.
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5. End