AO-RRFTP(P)/A-D Humidity Transducer with display & Passive Temperature Output and Pt100 Probe




0-100% Rel. Humidity
Output RH: 4-20mA
Output Temp.: Pt100

245,00 €

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Environment of Use Indoor/Outdoor
With Display LCD
IP Classification IP65
The Sensor measures: Temp./Rel. Humidity
Output Signal: 0-10 V or 4-20 mA
Cable Length: 2m

The AO-RRFTP(P)/A humidity transducer with pendular probe measures the relative humidity 0...100% r.H. by a capacitive sensor and transforms it to a linear output signal 0-10 V or 4-20 mA.
In addition it provides a passive resistance sensor for temperature measurement. The humidity and temperature sensor is protected against contamination by a sinter filter.
The humidity transducer can be adjusted locally for fine calibration by an offset controller. 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.

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; Pt100, Pt500, Pt1000, Ni1000, KTY, NTC, LM235Z (other on request)
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

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