* A high class digital relative humidity and temperature sensor with a protective filter (ABS material as a standard, slot width 1 mm, and steel wire mesh with mesh size of 0.15 mm);
* A probe integrated with the enclosure, external or on a stainless steel pipe
* A current output, 4÷20 mA (2-wire, with power supply from the current loop); A voltage output 0÷10 V (3-wire), or an RS485 interface 3 n calculation of the dew/frost point [°C], relative humidity [g/m ] (calculations for atmospheric pressure of 1,013 hPa) with possibility to link the calculated values to an analog output;
* Temperature compensation of humidity measurement, high measurement stability
* Programmable processing ranges for humidity and temperature
* An LCD display with a keypad (option) that enables conguration of parameters
* Configuration of parameters with the keypad, through the RS485 or PRG port (programmer AR956 or AR955) and free ARsoft-CFG software that enables quick setting and copying of all configuration parameter protection rating IP65 provided by the enclosure which improves reliability of operation thanks to high resistance to penetration of water and dust and surface condensation of steam inside of the device; an IP40 probe
* Available accessory filter with a metal wire mesh to protect the sensor against dust
Technical Data
Sensor SHT31, ABS cover (slot width 1mm ) and a stainless steel wire mesh (slot width 0.15mm)
Measurement range 0÷100 %RH, -30÷80 °C
Measurement
Acurancy
Humidity typical ±2,5 %RH (10-90%RH); max. ±3,5 %RH (90-100%RH)
Temperature ±0,5 °C in the entire measurement range
Hysteresis and stability ±0,8 %RH in temp. 25°C, long-term stability < 0,25 %RH / year
Measurement period 1s
Response time (63%) 8s (for air ow > 3,6km/h)
Display (optional) LCD, 4 digits 10 mm
Outputs current (IH, IT) 2 x 4÷20 mA (2P), load R < (U -12) / 22 mA O sup voltage (UH, UT) 2 x 0÷10 V (3P), load I <4,5 mA (R > 2,5 kΩ) O o digital (not separated) RS485, MODBUS-RTU (slave)
Power supply for the 4÷20 mA 12÷36 Vdc (2-wire, 2P) supply from the current loop
for the 0÷10 V 18÷30 Vdc, current consumption: ~7mA (with and without an LCD) version with RS485 9÷28 Vac or 9÷36 Vdc, current cons.: ~5mA (with and without an LCD)
Operating conditions air and neutral gases (do not pour water on the measurement probe)
standard -30÷80 °C, <100 %RH (no condensation)
with an LCD display -20÷70 °C, <100 %RH (no condensation)
Installation Data
Dimensions 58x94x35 mm
Material polycarbonate
