CẢM BIẾN NHIỆT ĐỘ & ĐỘ ẨM APLISENS MODEL AR250

* A high class digital relative humidity sensor with a protective 􀃶lter (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)

or a voltage output 0÷10 V (3-wire)

* Temperature compensation of humidity measurement, high measurement

stability

* Programmable processing ranges for humidity

* Configuration of parameters through the PRG port (programmer AR956 or AR955)

and free ARsoft-CFG software that enables quick setting and copying of all

configuration parameters

* 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, an ABS cover (slot width 1mm) and a stainless steel wire mesh (slot width 0,15mm)

Measurement range 0÷100 %RH

Measurement acurancy ±2 %RH in the entire measurement range

Histeresis and stability ±0,8 %RH, long-term stability < 0,25 %RH / year

Measurement period 1s

Response time (63%) 8s (for air 􀃸ow > 3,6km/h)

Outputs current (IH) 4÷20 mA (2P), load R < (U -12) / 22 mA O zas voltage (UH) 0÷10 V (3P), load I <4,5 mA (R > 2,5 kΩ) O w

Supply for the 4÷20 mA 12÷36 Vdc (2-wire) supply from the current loop for the 0÷10 V 18÷30 Vdc, current consumption: ~7mA

Operating conditions air and neutral gases (do not pour water on the measurement probe) -30÷80 °C, <100 %RH (no condensation)

Installation Data

Dimensions 58x94x35 mm

Material polycarbonate