LION SD-400 - Appendix 2: Technical Details

lion alcolmeter
®
SD-400 User Handbook [v7]
Appendix 2: Technical Details
A2.1 General
 Name:
- lion alcolmeter
®
SD-400 [version 3.4 or later].
 Designation:
- portable, hand-held breath alcohol measuring instrument.
 Automation:
- fully automatic, microcontroller-based operation. All operating
parameters such as breath flow rates, discard volume and alcohol
measuring units are pre-set using dedicated PC based software.
A2.2 Analytical
 Sensor:
- electrochemical fuel cell develops a voltage in response to alcohol.
 Specificity:
- unaffected by acetone, paint and glue fumes, foods, confectionary,
methane and all other likely breath contaminants.
 Response Time:
- within 30 seconds at 20C; 10 seconds at very low alcohol levels.
 Recovery Time:
- less than 10 seconds at zero alcohol; about 60 seconds at
0.35mg/l BrAC. Typically, 4 minutes at the top of the measuring
range [or faster, depending on firmware version].
(Note: at low alcohol levels the software configured Display Reset
Time may reduce the maximum possible breath sampling rate.)
 Calibration Period:
- recommended monthly Calibration Check, but actual Adjustment
should not be required more than once every six months.
 Long Term Drift:
- less than 0.02mg/l BrAC (ie .005% BAC) per month.
 Operating Temperature Range [Breath Analysis]:
- -5 to +40C, for optimum operation.
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