Operating Manual PG11 / PGE11 Page 31
7 Signal outputs
7.1 Detector status flags
In the table below are the status flags for the PGxx11. Not all status flags below will have any impact on the
0-20 mA Safety output. All statuses will be available through HART or the independent MODBUS digital
output:
● All FAULT status flags will lead to the 0-20 mA output going into FAULT mode.
● WARNING statuses means that the detector is still inside specification, but the user or vendor might
be interested in this information. Most WARNING flags are optional if they should have any impact
on the 0-20 mA output. For example, EARLY CLEAN OPTICS is very useful for planning
Maintenance.
● SERVICE flags means the detector is in service mode and might not measure gas.
Should be the status before the detector has been through
Manufacturing. Should not happen in the field. Please send the
detector back to the vendor for examination.
Transmission less than 70%.
Detector cannot measure gas, probably due to dirt or something
else blocking the optics. Perform service by removing weather
protection and cleaning optics. Weather protection should be
inspected to verify containing no objects blocking the optical path.
The 4-20 mA analogue Safety port of the detector is outside
specification. This might be due to calibration of analogue channel
is wrong and might need correction. This can only be done by the
vendor.
Please contact vendor and supply the #err code.
Transmission less than 55%. Probably due to dirt on optics.
Detector still works fine and detects gas within accuracy, but it
should be planned to clean the lens and mirror.
There is detected noise in internal signals higher than expected
that might indicate that there might be an issue later
Temperature detected to be above the certified temperature range
of the gas detector. Detector is measuring gas but cannot
guarantee accuracy and risk of the detector going into fault.
Keeping the detector at too high temperature can reduce the
lifetime of the detector.
Temperature detected to be below certified temperature range of
the gas detector. Detector is measuring gas but cannot guarantee
accuracy and risk of the detector going into fault.
Indicator has issues and might not work. Detector is measuring gas
fine.
The 0-20 mA analogue Safety port of the detector is slightly outside
specification. This might be due to calibration of analogue channel
is wrong and might need correction. Only zero value can be
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