AO-RRF(P)/A Humidity Transducer with Pendular Probe (0...100% r.H) View larger

AO-RRF(P)/A Humidity Transducer with Pendular Probe (0...100% r.H)




Humidity Transducer with Pendular Probe (0...100% r.H)

225,00 €

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The AO-RRF(P)/A humidity transducer with pendular sensor measures the relative humidity 0...100% r.H. of the ambient air by a capacitive sensor and transforms it to a standardised output signal 0-10 V or 4-20 mA. The humidity sensor is protected against contamination by a sinter filter. In addition, the humidity measuring instrument has an integrated heating function for sensor protection in the high humidity range of 95...99% r.H. If the relative humidity exceeds the factory-preset threshold value for more than 10 minutes, this heating function is activated. Then the sensor will be temporally heated, thus dried respectively protected against condensation. During the heating and subsequent temperature compensation phase, the output signal is kept stable on the last measurement value before the protective function was activated. The humidity transducer can be adjusted locally for fine calibration by an offset controller.

Measurement range r.H. 0...100% r.H.
Accuracy ±3% r.H. (30%...70% r.H., else ±5% r.H. at 20°C)
Temperature dependency < 0,02% r.H. / °C (voltage output), < 0,04% r.H. / °C (current output)
Long term stability ±1%/year
Sensor capacitive humidity sensor
Sensor protection screwable stainless steel sinter filter, condensation protection by heating function in the range of 95...99% r.H.
Flow rate < 2 m/s
Supply voltage at 0-10 V 24 V AC/DC (±5%)
Supply voltage at 4-20 mA 15...36 V DC (Ubmin = 15 V + RLast*0,02A)
Current consumption at 0-10 V typ. 10 mA
Current consumption at 4-20 mA max. 20 mA
Analogue output 0-10 V 3-wire connection, load current <0,1 mA
Analogue output 4-20 mA 2-wire connection (transmitter), max. RLoad(Ohm) = (+Ub - 15 V) / 0,02 A
Electrical connection screw terminals max. 1,5 mm²
Cable 2 m shielded PVC cable
Housing polyamide with snap closing screws, colour white like RAL 9010
Cable gland PG11 high-strength cable gland with strain relief
Display optional LCD-Display, to display the actual humidity
Material Pendulum: brass nickel-plated
Dimensions Protection tube: Ø 16 x 60 mm
Protection type IP65
Protection class III
Working range r.H. 0...98% r.H. in contaminant-free, non-condensing air
Working temperature Probe: -20...+80°C, Electronic: -30...+70°C
Storage temperature -20...+50°C
Installation screw fastening
Approvals CE-conformity, EAC, RoHS