Vaisala MI70 - Page 31

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Table 1. GM70 error messages
Error message Interpretation and action
Difference too big
The adjustment cannot be made if the difference between the measured
concentration and the given value is more than 20 % of the maximum value of
the probe's measuring range. This message can be caused by a considerable
high drifting error of the probe.
Contact Vaisala (see Technical support).
Value too high
The reference concentration can be at the highest 110 % of the maximum value
of the probe's measuring range.
Make the adjustment using a lower reference gas concentration.
Lower value too high
The lower reference gas concentration must be less than 20 % of the maximum
value of the probe's measuring range.
Make the adjustment using a lower reference gas concentration.
Higher value too high
The higher reference gas concentration can be at the highest 110 % of the
maximum value of the probe's measuring range.
Make the adjustment using a lower reference gas concentration.
Values too close
The difference between the reference concentrations must be at minimum 20 %
of the maximum value of the probe's measuring range.
Make the adjustment using correct reference gas concentrations (see above).
CO
2
value too high
The measured CO
2
concentration is too high for the measurement range of the
probe, or the calibration is not properly done. The screen goes blank.
Move the probe to a location with less CO
2
or recalibrate.
Probe error: Reboot
This error can occur when changing the probe while power is on.
Switch off power and connect the probe properly, then switch on power.
Probe error
This error can occur when changing the probe while power is on.
Switch off power and check that the probe is connected properly: unscrew the
probe fastener. Insert the probe to the handle as deep as possible. Turn the
probe inside the handle until you feel that a step in the probe connector snaps
into the groove of the handle connector and locks the probe. Tighten the probe
fastener. Switch on power.
Adapter error
Switch off power and check that the probe is connected properly (see the
instructions for handling a Probe error message. In case of continuous error,
contact Vaisala. See Technical support.