| Measuring modes | : | Active and passive |
| Metering range | : | 0 to 5.5 ‰ BAC |
| Accuracy | ||
|
: | ± 0.05 ‰ absolute |
|
: | ± 5 % of measured value |
|
: | ± 10 % of measured value |
| Ambient conditions | ||
|
: | -5 °C to +50 °C |
|
: | -20 °C to +60 °C |
|
: | 0 °C to +25 °C |
|
: | 600 to 1400 hPa |
|
: | 20 to 98 % r.h. |
|
: | 1,2 liters |
| Batteries | : | 4 x LR6 (AA) Alkaline Mignon-Zellen (Recommended: Duracell® Procell®) |
| Number of measurements per battery pack | : | more than 1600 tests, depending on the batteries and the ambient conditions |
| Device interface | : | RS 232 (serial interface). Data can be transferred to a PC |
| Dimensions (L x W x H) | : | 190 mm x 61 mm x 38 mm |
| Weight | : | 275 g incl. batteries |
Miscellaneous |
||
| Ready after switching on | : | approx. 6 s |
| Ready after 0 ‰ measurement | : | approx. 2 s |
| Ready after 1 ‰ measurement | : | approx. 5 s |
| Sensor type | : | E100 electrochemical measuring cell |
| Cross sensitivities | : | In the form of other substances accompanying respiration, such as acetone etc. are negligible |
| Units | : | configurable: ‰, mg/l |
| Input | : | Three-key operation |
| Power-saving mode | : | Device switches off automatically after 2.5 minutes of non-operation,the background lighting switches off after 15 seconds |
| Display | : | Background illuminated, fully graphic |
| Data memory | : | Stores 9.999 measured values with date and time |
| Mouthpieces | : | Disposable mouthpiece Cosmos |
| Software | : | Optional PC software for statistical analysis, data transfer and logging |
| Calibration | : | Every 6 months |
| Safety-related control | : | Every 6 months |
The Measuring principle
There is a strong connection between blood and breath alcohol. Deep inside the lungs, in the alveolic space, blood and breath are separated by a thin, gas-permeable membrane. It is here that the exchange of gas takes place
Oxygen is absorbed by the blood, carbon dioxide and, where present, alcohol are released into the exhaled air.
To obtain this kind of air from the depth of the lungs (air from the alveolic space) for analysis a certain minimum amount of breath has to be exhaled.
(1.2 litres of breath = 4 seconds of strong blowing)
The correct testing results can be achieved only if you blow hard and the sufficient amount of breath is exhaled. We reserve the right to change technical and optical details without announcement as we continuously advance our products.