ULTIMA X
®
Series
GB
49
(5) When using cal-kit 41, use the calibration cap which has a hole for the tube.
push the tube through the hole in the bottom of the cap,
connect the tube end over the sensor inlet and
push the calibration cap over the entire sensor inlet.
(6) Start the span gas flow by turning the knob on the flow controller.
The calibration gas must be applied during the 30 seconds countdown peri-
od.
If the CAL FAULT message is displayed on the ULTIMA X Monitor before
the span gas is applied, a steady state gas reading was reached, causing
the monitor to use a false measured value as a span indication.
To clear this fault, restart the calibration process.
After the 30 second countdown:
- The display alternates between CAL and a numeric value, which corresponds
to the actual gas concentration the sensor is detecting.
- After the gas value has stabilised, the alternating display stops. If the calibration
is successful, END is displayed for approximately 2 seconds [ Fig. 12].
Fig. 12 Calibration completed
(7) Turn off the gas flow by turning the knob on the flow controller.
- The displayed value must correspond to that of the ambient conditions.
No user adjustments are required.
The display will show the span gas value while the span gas is flowing
to the ULTIMA X Monitor.
If the calibration output signal is enabled during calibration, it will remain
at the SENSOR CAL value for another two minutes after END is dis-
played.
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