DOL 139 is a smart 3-in-1 sensor combining measurement of both relative humidity, temperature, and carbon dioxide (CO2).
Technical Information | |
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Voltage range | 0-10 VDC |
Limited output power per port | 20 mA |
Output impedance | <1 Ω |
Recommended load impedance | >100 kΩ |
Load impedance | >0.5 kΩ |
Relative humidity - Measuring range | 0-100 %RH |
Relative humidity – Resolution | 0.1 V/%RH |
Relative humidity – Accuracy +10 oC - +40 oC (40-80% RH) | +/-3 %RH |
Relative humidity – Accuracy 10%RH – 95%RH | +/-3 + 2% of measured value |
Time constant: T63 | 4 min. at 0.5 m/s air speed |
Temperature - Measuring range | -40 - +60 oC |
Temperature - Resolution | 0.1 V/oC |
Temperature - Accuracy +10 oC - +40 oC | +/-0.75 oC |
Temperature - Accuracy 0 oC - +60 oC | +/-1.5 oC |
Temperature - Time constant T63 | 7 min. at 0.5 m/s air speed |
CO2 - Measuring range | 0-10000 ppm |
CO2 - Resolution | 0.001 V/ppm |
CO2 - Accuracy 400 - 10000 | 50 + 5% of measured value |
CO2 - Time constant T63 | 2 min. at 0.5 m/s air speed |
Supply voltage | 13.5 - 30 VDC |
DOL 139 is a smart 3-in-1 sensor combining measurement of both relative humidity, temperature, and carbon dioxide (CO2).
Since DOL 139 measures 3 important elements of the environment; humidity, temperature, and CO2, it makes for an easier installation, less maintenance and a more cost-effective solution. No need for multiple sensors when you can use a single sensor to measure 3 elements.
The sensor is specially designed to withstand the harsh conditions in livestock houses and industrial environments.
DOL 139 is protected by a sturdy casing and behind a carefully selected filter. It is supplied with a protection cap for protection of the sensor during washing and disinfection, even during high-pressure cleaning.
It is easy to replace DOL 19 or DOL 119 CO2 sensors as well as DOL 104 humidity sensor and DOL 114 humidity and temperature sensor with a DOL 139. The DOL 139 will then serve as the only sensor needed for measuring humidity, temperature, and CO2.
dol-sensors A/S
Agro Food Park 15
8200 Aarhus N