Ambient Conditions; Measurement Accuracy - Dräger Alcotest 4000 Instrucciones De Uso

Ambient conditions

During operation
During storage
Sampling
Respiratory volume
Breath flow
Breath length

Measurement accuracy

Standard deviation of repeatability with ethanol standard
Up to 0.50 mg/L
≥0.50 mg/L
Up to 1.00 ‰
≥1.00 ‰
Drift of sensitivity
Wait time for readiness to take measurement after a previous
measurement of:
0.25 mg/L
0.50 mg/L
1.00 mg/L
>1.50 mg/L
20 s
40 s
80 s
120 s
–5 to +50 °C
(23 °F to +122 °F)
10 to 100 % RH
(non-condensing)
600 to 1300 hPa
–20 to +60 °C
(–4 °F to +140 °F)
15 to 75 % RH (10 to 100 % RH <48 h)
>1.2 L (default setting)
>10 L/min (default setting)
>1.6 s (default setting)
0.008 mg/L
1.7 % of the measured value
0.017 ‰ or
1.7 % of the measured value
depending on which value is higher
Typically 0.4 % of the measured value per
month
0.50 ‰
1.00 ‰
2.00 ‰
>3.00 ‰
Technical data
20 s
40 s
80 s
120 s
en
25