| ASIII Calibration
Prior to calibrating it is critical that you
know the expected value of the calibration standard you are using. (The
value of the standard will be found on the label on the Mini-Alco Can, Dry
Gas Cylinder, True-Cal device (see previous picture) or Bottle of Wet Bath
Simulator Solution).
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Check Instrument Temperature
Make certain that the instrument temperature is between 20°C and
40°C. If not, warm or cool the instrument until it is within this range.
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Temperature window |
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Alco-Sensor III Displays .000 – Pre-Calibration "Blank"
1) Depress read button, .000 should be seen for at least 5 to 10
seconds.
If .000 is not seen, depress set button and recheck in one minute. (The
unit must display .000 for 5 to 10 seconds before proceeding.)
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READ button depressed
ASIII displays .000
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2) Follow instructions on the dry gas standard to mount the
regulator.
3) If this is the first test from the dry gas standard today,
purge regulator by depressing button/valve on regulator for approximately
3 to 4 seconds.
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Set button depressed
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4) Insert screwdriver in calibration screw hole located on right
side of unit.
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5) Turn screw one or two revolutions clockwise to over
sensitize the instrument.
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