ALTAIR 2X
39
Use
GB
(5) Close the regulator.
- For devices with XCell Pulse technology, WAIT is displayed together with
the “no gas cylinder” icon. This shows that the regulator must be closed and
the calibration gas must be removed from the device. Once gas is removed,
the device will perform a secondary calibration operation (pulse check) on
the sensor. During the pulse check, a countdown is displayed. The device
will then return to normal operating mode.
- If the span calibration fails, ERR is displayed. The device returns to normal
operation after a button press.
(6) If calibration fails, check:
whether the sensor inlet or sensor surface is dirty,
whether the correct test gas was used,
whether the test gas cylinder is empty or the date has expired,
whether the test gas hose was connected to the sensor,
whether the flow regulator is set to 0.25 l/min.
(7) If necessary, repeat steps (1) to (6).
PASS is displayed. Otherwise (ERR), the device must be taken out of
use.
If the calibration is successful, a is displayed for 24 hours. If the safe LED
(green) option is enabled, the green LEDs will flash periodically.
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