Honeywell Touchpoint Pro Technical Handbook page 78

9.2.17 Signal Range Fault Settings
Note: When setting up the Gas Over / Under Range and Signal Over / Under Range limits, take account of any diagnostic
signals that may be generated by the field device under and over the measuring range. Failure to do so may result in
confusing or misleading messages. Remember that up to 5 Custom Transmitter Faults and Inhibit Signalling are
available, so that diagnostic information from the transmitter can be clearly understood.
Note: When commissioning or testing sensors with a Transmitter, check that all fault messages in the Touchpoint Pro
settings match the 4-20 mA transmitter specification.
Some typical diagnostic signal levels and equivalent %FSD values that may be used by intelligent transmitters are given
below:
Access Level: Engineer
Parameter Name
Signal Under Range
Limit
Signal Under Range
Latch
Signal Over Range
Limit
Signal Over Range
Latch
Part. No. 2400M2501_6
CONFIGURATION
Diagnostic level
22 mA
21 mA
3 mA
2.5 mA
2 mA
1.5 mA
1 mA
Default Value
Setting Range
1.5mA 0.7 to 4.0
mA
Latching Non-
Latching /
Latching
22.0mA 20.0 to 24.0
mA
Latching Non-
Latching /
Latching
Equivalent %FSD
112.5 %
106.25 %
-6.25 %
-9.4 %
-12.5 %
-15.6 %
-18.75 %
Comment
The 'Signal Under Range Fault' will be set if the sensor signal
reading is less than the configured 'Signal Under Range Limit'.
The 'Signal Over Range Fault' will be set if the sensor signal
reading is greater than the configured 'Signal Over Range
Limit'.
71
Touchpoint Pro
Technical Handbook