CMi Intoxilyzer S-D2 User Manual

CALIBRATION
REQUIREMENTS:
USE OF THE
DRY GAS
STANDARD
The Intoxilyzer
®
S-D2 uses an electrochemical fuel
cell to detect and measure the concentration of
alcohol in expired breath. The sensitivity of the
instrument changes slowly with time, due to aging
of the platinum electrode within the fuel cell. This
change in sensitivity is very slight and calibration
will not normally change significantly over a six
month or longer period.
Monthly calibration checks are recommended to
determine when calibration adjustment is needed.
Either a dry gas standard or wet-bath simulator
may be used to generate the standard alcohol
vapor required.
THE ALCOHOL STANDARD
Calibration checks and adjustments can be
conveniently done using a dry gas standard. This
consists of a mixture of alcohol in air or nitrogen.
The quantity of alcohol in the gas is accurately
known and is shown on the label. Therefore, when
14
INTOXILYZER
®
S-D2 Operator’s Manual

CMi Intoxilyzer S-D2 Specifications

General

Brand	CMi
Model	Intoxilyzer S-D2
Category	Test Equipment
Language	English