DOL 104 humidity sensor 4-20mA

Manufacturer item no.: 140273

The DOL 104 is a high precision relative humidity sensor. The sensor has an analogue output with very low output resistance and full protection against short circuits and cable faults. The special sensor element and the integrated filter enable use in livestock stables with a constantly high level of humidity. The sensor is controlled by a microprocessor and has a two-color light emitting diode (LED) to indicate operational status and to diagnose faults. A protective cap is also available so that the sensor does not have to be removed when cleaning the barn. However, this sensor is also suitable for other industrial applications and is easily adapted to all types of asset management systems.

  TECHNICAL SPECIFICATIONS

•  Measurement range % RH 0 – 100
• Accuracy % RH:2% RH (40–85 %) ± 3% RH (10-95 %) at 0-40 °C
• Output signal:0,16 mA / % RH
• Time constant T63 20 s at 0.5 m/s air speed
• Supply voltage V DC 11 – 30
• Current mA 12 mA no load 35 mA max. load
• Temperature, operation and storage °C -40 to -60C
• IP classification IP 67
• Cable 2 m. 3 x 22 AWG / 0.34 mm2
• max. cable length/ 100 m 0.75 mm2 200 m 1.50 mm2
• * After direct exposure to water and condensation, a period of time with less than 80% relative humidity is required for a correct measurement.

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