Rae QRAE II, Руководство пользователя

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QRAE II
User’s Guide
Page 78
2. Turn on the regulator to start the Calibration Gas flow.
3. Attach a hose to the Monitor gas inlet and to the regulator.
4. Press [MODE] until OK is highlighted.
5. Press [Y/+] to start calibration.
You should see a countdown from 60 seconds:
Calibration
in progress ... 60
Note: If you see the following message, check that the gas is flowing and the hose is
attached:
No Gas Flow... Apply gas or hit any key to start.
When calibration is complete, you will see the screen change between these two:
Multiple Sensor Calibrated!
and
CO = Pass
H2S = Pass
O2 = Pass
LEL = Pass
A sensor calibration failure is indicated like this:
CO = Fail
H2S = Pass
O2 = Pass
LEL = Pass
If a sensor fails, try calibrating again. If calibration fails again, replace the sensor.
Single Sensor Calibration
This procedure determines the second point of the sensor calibration curve for a single
sensor. The display counts down from 60 to 0 seconds, and then shows the name of each
sensor, whether it passed or failed calibration, and the calibrated value for each sensor.
Select the sensor to calibrate by pressing [MODE] until the sensor’s name is highlighted.
Then press [Y/+] to toggle the selection on (indicated by an asterisk, *) or off (no
asterisk).
After you have selected the sensor you want calibrated, it is time to perform the
calibration.