HUMIDITY & TEMPERATURE TRANSDUCER - PFT22

Humidity & temperature transducer – PFT22

Measuring temperature and relative humidity with a „single-chip“-sensor
Digital transmission from sensor to the evaluation electronics
Operational use temperature -40…+120 °C
Operational use humidity 0…100 %
Analog outputs 0…10 V or 4…20 mA
Sensor interchangeability without need for re-calibration

Humidity-/temperature transmitter in three different cases: for duct-mounting, as outdoor-sensor or room sensor. Output signals 0…10 V in 3-wire technology or 4…20 mA in 2-wire technology.

Operating mode:
Messuring mode
Medium:
Temperature and Humidity
Sensor:
Single-chip sensor for humidity and temperature with digital signal transmission and calibration memory on the chip
Measuring unit:
Temperature in ° C; relative humidity in %
Output signal 1:
Temperature
Output signal 2:
Relative humidity

Resolution:
14 bit
Response time:
Approx. 20 seconds
Reproducibility:
± 0,1 °C
Tolerance:
±0,5 °C at 25 °C; ±2 °C at -40 °C, ±3 °C at +120 °C; narrower tolerance possible
Measuring ranges:
-40…0…+120 °C; -30…0…+70 °C; 0…100 °C; 0…50 °C
Measuring range selection:
4 selectable measuring ranges via DIP switch
Characteristics:
Linear

Resolution:
12 bit
Response time:
Aprox. 4 seconds (63 %-time, slightly moving air)
Reproducibility:
Typical < 1 % r.h. / year
Tolerance:
± 0,1 % r.h.
Measuring range:
0…100 % relative humidity
Characteristics:
Linear (digital linearization)

Dimensions:
See drawings

Connections head:
Plastic ABS

Electrical connection:
7 Connection terminals

Version differences:

Channel sensor:
Sensor tube: stainless steel, 11 mm ø
Protection class: IP 65 according to EN 60529
Cable gland: M16 x 1.5
Outdoor sensor:Sensor tube: double-walled sensor tube with wall holder
Protection class: IP 65 according to EN 60529
Cable gland: M16x1.5
Room sensor:Plastic housing for mounting on a flush-mounted switch box or surface-mounted wall mounting

Power supply:
15 … 30 Vdc or 24 Vac in three-wire circuit;
13 … 30 Vdc in two-wire circuit

Output current:
2 x 0 … 10 V in three-wire circuit;
2 x 4 … 20 mA in two-wire circuit

EMC:
EN 61000-6-2, EN 61000-6-3, CE-mark
RoHS:
according RoHS-directive 2011/65/EU

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