NS 5.14 Firmware
2–40 4900002262 rev. B 3-23-21
Validating the Analyzer
Validation of the analyzer using an appropriate gas standard is automatically
conducted at each Val Interval period at the Val Start Time, semi-
automatically when initiated via the Validation DI or the Start Validation
parameter, or manually by accessing Mode 7 or Mode 8.
Tovalidateautomatically
1. Verify that the validation gas source(s) has been properly installed
and/or connected.
2. If necessary, set the current time, date, desired validation hour and
validation interval (see “To change parameters in Mode 2” on
page 2-15).
3. Set the Daily Validation parameter to 1. The analyzer should run
a validation cycle for the number of days and hour set by the Val
Interval and Val Start Time parameters.
Tovalidatesemi‐automatically
1. Verify that the validation gas source(s) has been properly installed
and/or connected.
2. Initiate a validation cycle by closing the contacts connected to the
Validation DI input or by setting the Start Validation parameter
to 1.
Tovalidatemanually
1. Verify that the validation gas source(s) has been properly installed
and/or connected.
2. Initiate validation measurements by pressing the # key followed by
the 7 key (Mode 7) or the # key followed by the 8 key (Mode 8)
for a dual validation system.
3. Once validation measurements are complete, press the # key
followed by the 1 key (Mode 1) to return to Normal Mode and stop
the validation.
Once a validation measurement has been completed, the appropriate relay (Val
#1 Active or Val #2 Active) will be activated. If the concentration measured
does not fall within the allowable limits (refer to “Validation Allowance” on
page 2-33), the Validation Fail Alarm relay will activate. Once activated, the
Validation Fail Alarm must be manually canceled (refer to “Cancel Val
Alarms” on page 2-19).
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