The controller of air humidity and temperature, housing IP65, sensor integrated or in an external probe, RS485, 3 relay outputs/SSR, analogue output 0/4÷20mA or 0/2÷10V

Product Description
• - the device is used for control and monitoring of temperature and humidity at the monitored equipment/system
• - high-quality digital sensor of relative humidity and temperature with protective filter (ABS material as standard, mesh: 1 mm)
• - measurement range:
o - humidity: 0÷100 %RH
o - temperature: -30÷80°C
• - 4 versions of measurement probes:
o - integrated with the housing (AR247/1)
o - outside on 1.5m cable (AR247/2)
o - outside in box housing on 1.5m cable (AR247/3)
o - stainless steel tube with integrated a housing - length of 15cm or 25cm (AR247/L150 or AR247/L250)
• - temperature compensation of relative humidity measurement
• - programmable digital filter smoothing and stabilizing measurements
• - 3 independent outputs of on/off type (ON-OFF, control 2- and 3-position):
o - output 1 (main): ON-OFF with hysteresis, PID, AUTOTUNING PID
o - output 2, 3 (auxiliary/alarm): ON-OFF with hysteresis
• - performance characteristics: heating/humidification, cooling/drying, relative alarms
• - analogue output 0/4÷20mA (standard) or 0/2÷10V (optional), constant-control, retransmission
• - the option of converting selected value into the standard of analogue output in the retransmission mode
• - calculation of dew/frost point (° C) and absolute humidity (g/m3) for a pressure of 1 atmosphere (1013 hPa)
• - the option of selecting the control value for each output (any measured or calculated value)

Parameter Name	Parameter Value
Display	digital
Protection level	IP65
Other characteristics	RS-485 4-20 mA with humidity control
Maximum temperature (°C)	80 - 80