Status WRX900 Series, Operating Manual, Page: 59 / 86

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measured value is set to “no input value”, the alarm bit “Radio timeout” of the
channel is set, and the top LED flashes red.
Offset (xx.OFF)
This offset value (process value correction) is added to the measured input value
with the correct sign. This permits a correction in the "+" as well as the "—"
direction.
Examples:
measured value Offset (Actual value correction) displayed value
294.7 +0.3 295.0
295.3 -0.3 295.0
CAUTION!
The following is recommended after changing an offset:
1. reset the fly back.
2. check the scaling of the analog outputs.
3. check the settings of the limit value alarms.
Filter time constant (xx.dF)
This parameter is used to adapt the digital input filter to the task. 63 % of the
alterations are acquired after 2x filter time constant at a step change. For a long
filter time this means:
•
high damping of interference signals
•
slow reaction of the process value display to process value changes
•
low limit frequency (2nd order low-pass filter)
Decimal point format (xx.dP)
Here the position of the decimal point is selected. No to max. 2 digits behind the
decimal point are possible or the automatic display (one digit behind the decimal
point as standard).
If the actual value exceeds the dimension which can be displayed with the
decimal point format, decimal places (n) are discarded after the decimal point.
Customer specific linearization
Four customer specific linearizations are available in addition to the linear
linearization.The corresponding linearization tables must be created with the
setup program. To be able to use the customer specific linearization, a suitable
transmitter must be linked and the probe type of the transmitter must be
configured to Potentiometer or Voltage.