Safety Guide

102
Calibration progress Calibration results
When the calibration is
completed, the instrument
will display a calibration
results of passed or failed,
along with the sensor's span
reserve percentage.
— Passed The span reserve percentage
is an indicator of the sensor's
remaining life. When that
value is less than 50%, the
sensor will no longer pass
calibration.
Cancel
calibration
Failed
After the first sensor is calibrated and the results displayed, the instrument will activate the calibration process for the next gas
type starting with the "Apply gas" request. The instrument will wait a few minutes to receive the requested calibration gas. This is
the opportunity to change cylinders if needed, then continue the calibration process (in the same manner as descirbed above for
H
2
S) until all calibration gases have been applied.
After the installed sensors have been calibrated (or skipped), the instrument's display screen will state the calibration results for
all installed sensors.
All-sensor calibration results End
Passed
Failed
►► Skipped
─ Not relevant to
the procedure.
Remove the calibration cup:
lift up from the cup's tabs.
Stop the flow of gas: turn the
regulator knob in a clockwise
direction and tighten.
Use Table 7.1 as a guide to help determine the
probable cause for calibration failure and find
recommendations for resolution.
Figure 7.2.B Calibration instruction