MAN0923_Issue 3_04/15
Touchpoint Pro
Operating Instructions
206
15. Appendix 2 - Configurable
Parameter Reference Guide
15.2.16 Calibration Reminder Settings
Access Level: Engineer
Note: Once the Calibration Overdue Warning is active, it can only be cleared by calibrating the channel.
Parameter Name
Default Setting Value Range
Comment
Calibration Reminder Enable
Disabled
Enabled / Disabled
‘Calibration Overdue Warning’ is set if the ‘Calibration
Reminder Interval’ is exceeded.
Calibration Reminder Interval
6 months
1 to 24 months
Calibration reminder is calculated to the day, e.g. if the
reminder is set on 27 January for 6 months time, the
calibration overdue reminder will appear on 27 July.
15.2.17 Calibration Signal Settings
Access Level: Engineer
Note: These settings refer to the range of signal values from the sensor over which calibration will be
permitted, and are used to avoid incorrect calibration e.g. due to a decaying sensor or incorrect application
of gas.
Parameter Name
Default Setting
Value Range
Comment
Maximum Zero Offset
100 mV
0 mV to 200 mV
During calibration, the “Zero Signal Too High” warning is set if the
zero signal exceeds the Maximum Zero Offset
Minimum Zero Offset
-90 mV
-90 mV to 0 mV
During calibration, the “Zero Signal Too Low” warning is set if the
zero signal is below the Minimum Zero Offset
Maximum Span Signal
100 mV
100 to 300 mV
During calibration, the “Calibration Signal Too High” warning will
be set if the span signal exceeds the Maximum Span Signal
Minimum Span Signal
0 mV
-50 to 100 mV
During calibration, the “Calibration Signal Too Low” warning will be
set if the span signal is below the Minimum Span Signal
15.2.18 Calibration Span Gas Settings
Access Level: Engineer
Note: These settings refer to the range of gas concentration values that can be used for span calibration,
and are used to ensure that the sensor is calibrated at an appropriate level.
Parameter Name
Default Setting
Value Range
Comment
Maximum Span Gas Conc 100 %FSD
80 to 100 %FSD
(According to
sensor range)
Sets the Maximum Span Gas Concentration that can be used
during calibration. Must be greater than the Minimum Span
Gas Conc.
Minimum Span Gas Conc 30 %FSD
15 to 80 %FSD
(According to
sensor range)
Sets the Minimum Span Gas Concentration that can be used
during calibration. Must be less than the Maximum Span Gas
Conc.
Default Span Gas Conc
50 %FSD
According to sensor
range
Sets the Default Span Gas Concentration to be used during
calibration.
