Endress+Hauser RIA15, Operating Instructions Manual

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RIA15 Troubleshooting
Hauser 21
Expert menu (EXPRT); a code must be entered
In addition to all the parameters in the Setup menu, the Expert menu also contains the parameters
described in this table.
Parameter Values Description
FRSET
NO
YES
Resets the device setup. The values are reset to the
preset values for preconfigured devices, and to the
default values for all other devices. Select "YES" and
press "E" by way of confirmation to reset the device.
INPUT The following parameters are available in addition
to the parameters from the Setup menu.
CURVE LINAR
SQRT
Use this function to select a linearizion curve for the
measuring current. The device can be adjusted to a
linear or quadratic measuring signal with this
parameter.
NAMUR NO
YES
Use this function to define the error limits in
accordance with NAMUR Standard
RNGLO Numerical value Lower range limit. An error message is displayed if
the measured current falls below this limit.
Only visible if NAMUR = NO
RNGHI Numerical value Upper range limit. An error message is displayed if
the measured current exceeds this limit.
Only visible if NAMUR = NO
OFFST Numerical value –19 999 to 99 999 Use this function to enter an offset value to display
the measured value.
8 Troubleshooting
8.1 Error limits as per NAMUR
The device can be configured for error limits as per NAMUR (
®
ä 20).
The device displays an error message if a value is outside these limits.
Current value Error
£
3.6 mA Under range
3.6 mA < x
£
3.8 mA Unpermitted range
20.5 mA
£
x < 21.0 mA
Unpermitted range
> 21.0 mA Over range