Temperature and humidity controller AR247

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:
  • humidity: 0÷100 %RH
  • temperature: -30÷80°C
• 4 versions of measurement probes:
  • integrated with the housing (AR247/1)
  • outside on 1.5m cable (AR247/2)
  • outside in box housing on 1.5m cable (AR247/3)
  • 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):
  • output 1 (main): ON-OFF with hysteresis, PID, AUTOTUNING PID
  • 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)
• programmable BIN digital input and function button "F" for changing the operational mode of the controller: control start/stop mode, manual mode for outputs, two-position switching of the set value (day/night), keypad lock, preview of measured values of the sensor (when calculated values are displayed)
• advanced function of selecting PID parameters with fuzzy logic elements
• manual mode (open control loop) available for binary and analogue outputs, setting the value of the output signal in the range of 0 ÷ 100%, option of auto-activation due to sensor failure
• two-line digital LED readout, height of digits: 14 mm with adjustable light intensity: upper display - relative humidity (%RH or g/m3), lower display - temperature (sensor or dew/frost point, °C) or setpoint of output 1
• optional RS485 serial interface (galvanically isolated, MODBUS-RTU, SLAVE)
• programmable display values (measured or calculated values), options for adjustment, alarms, communication, access, calibration and other configuration parameters
• access to configuration parameters protected by a user password or no password required
• methods for configuring parameters:
  • via membrane keyboard (IP65) located on the front panel of the device;
  • via RS485 or AR956 (AR955) programmer and freeware ARsoft-LOG (Windows 7/8/10) or user application, MODBUS-RTU communication protocol
• software and AR956 programmer (or AR955) allow you to view the measured value and quickly configure single or few sets of parameters previously saved in the computer for re-use, e.g. in other controllers of the same type (duplicate configuration)
• IP65 degree of protection provided by the industrial housing which improves its reliability due to high resistance to water, dust and condensation inside the unit.
• optionally (when ordered): measuring probe type, power supply 24Vac/dc, SSR control outputs, analogue output 0/2÷10V and RS485 interface
• high accuracy, long-term stability and immunity to interference
• power supply: 230Vac (85÷260Vac) / 3VA, 24Vac/dc(18÷72Vdc,3W)/(15÷50Vac,3VA)
• operating conditions: -20 ÷ 60 °C
• industrial housing IP65, dimensions 120x80x55mm