5) ADJUST THE DISPLAY TO THE VALUE OF THE
DRY GAS STANDARD
Continue to hold down the ‘READ’ button and turn the
calibration control screw on the right side of the S-D2
counter-clockwise until, after about ten seconds, the
display reading exceeds the value of the dry gas
standard. As the display rises still further, due to
continued charging of the fuel cell, turn the control
clockwise to maintain the display at the dry gas
standard value. As the fuel cell reaches its peak
voltage, the control will require no further adjusting.
The instrument is now calibrated. Do not turn the
control to increase the reading once the display (fuel
cell voltage) has passed its peak reading.
25
INTOXILYZER
®
S-D2 Operator’s Manual
Adjust the
display slightly
counter-
clockwise to
exceed the dry
gas standard
value.
Turn the screw
slightly clockwise
to hold the
display at the dry
gas standard
value.
0
10
20
0
30
20