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CALIBRATION
Prior to starting calibration prepare the necessary gases per the sensor
configuration.
From the working display access the menu by pressing and holding the TICK/
MENU BUTTON (B) until the display reads USER MENU SHOW TIME. Press
the SAVE/ZERO BUTTON (C) to scroll to USER MENU CAL .
Press the TICK/MENU BUTTON (B) to the calibration modes. The display will
now show CAL AUTO CAL. Pressing the SAVE/ZERO BUTTON (C) will allow
viewing of all other modes of calibration.
AUTO CAL
AUTO CAL automatically calibrates the instrument to all gases detected
by the sensors installed. From the AUTO CAL menu, press the TICK/
MENU BUTTON (B) . Attach the prepared gas as listed on the display.
A countdown timer shows the time remaining to connect . Failure to
connect will result in a FAIL message and an alarm sound (press any
button to continue).
During the test, the gas type, the target concentration and digital output
of the sensor (not concentration) will be displayed. Following each gas
tested PASS or FAILED will be displayed. It is possible to manually stop
the test once it is started by pressing the POWER/MUTE BUTTON (A).
At the end of the test CAL AUTO CAL will be indicated. Pressing the
POWER/MUTE BUTTON (A) will save the results and return to the
USER MENU.