34 Dräger Alcotest 6820
Technical data
11 Technical data
Measurement principle Electrochemical sensor
Measuring range
Breath alcohol concentration
0.00 to 2.50 mg/L
(Ethanol mass per breath volume at
34
°C
and 1013 hPa.)
Blood alcohol concentration 0.00 to 5.00‰
(Ethanol mass per blood volume
and/or mass at 20 °C and
1013 hPa.
For the above data, a conversion
factor of 2100 is used for breath and
blood alcohol concentration data
(works setting, country-specific
conversion factors can be
configured).
Indication range
The display is identical to the measuring range.
If the measurement result is out of range, the display will show
three arrows "↑ ↑ ↑" indicating that the measuring range has been
exceeded.
Ambient conditions
During operation –5 to +50
°C
10 to 100 % r.h.
(non-condensing)
600 to 1400 hPa
During storage –40 to +70
°C
Taking samples
Breath volume 1,2 l (pre-set)
Breath flow >10 l/min (pre-set)
Duration of breath 2 s (pre-set)
Measurement accuracy
Standard deviation of the repeatability with ethyl alcohol standard
up to 0.50 mg/L 0,008 mg/l
≥ 0.50 mg/L 1.7 % of the measured value
up to 1.00 ‰ 0,017 ‰ or
≥ 1,00 ‰ 1.7% of the measured value
whichever value is higher
Sensitivity drift typically 0.6% of the measured
value/month
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