10
Chapter 4
Technical data
Regio Midi manual
Chapter 4 Technical data
Supply voltage ...................................................................................... 18...30 V AC, 50...60 Hz
Internal consumption ........................................................................................................ 2.5 VA
Ambient temperature ...................................................................................................... 0...50°C
Ambient humidity.................................................................................................. Max 90 % RH
Storage temperature .................................................................................................... -20...+70°C
Terminal blocks ......................................................... Lift type for cable cross-section 2.1 mm
2
Protection class ..................................................................................................................... IP20
Material casing ............................................................................................... Polycarbonate, PC
Colour
Cover ...................................................................................................... Polar white RAL9010
Bottom plate .............................................................................................................. Light gray
Weight ................................................................................................................................. 110 g
Dimensions
Models without setpoint knob .......................................................................... 95 x 95 x 28 mm
Models with setpoint knob ............................................................................... 95 x 95 x 31 mm
Communication
Type ................................. RS485 (EXOline or Modbus with automatic detection or BACnet*)
Communication speed ................... 9600, 19200, 38400 bps (EXOline, Modbus and BACnet*)
...................................................................................................... or 76800 bps (BACnet* only)
Functions as ...................................................................................................................................
Modbus ..................................................................................................................... RTU Slave
BACnet ........................................................................................................................... MS/TP
Modbus ........................................................ 8 bits, 1 or 2 stop bits. Odd, even (FS) or no parity
Galvanically isolated port ....................................................................................................... No
*
BACnet is only available in models with display
Memory
Non-volatile (EEPROM) ...................................... All settings and configurations are preserved
See also
Chapter 15,
Memory function on power failure
.
Built-in temperature sensor
Type .................................................................................................. NTC, linearised, 15 kOhm
Measuring range ............................................................................................................. 0...50°C
Accuracy ...................................................................................................... ± 0.5°C at 15...30°C
Built-in CO
2
sensor
Temperature dependance .... 5 ppm per °C or 5 % of the reading per °C (whichever is greater)
Long term stability ..................................... < 2 % of FS over life of a sensor (15 years typical)
Response time ................................................................... < 3 min. for 90 % step change typical
Warm-up time .......................................... < 2 min. (operational), 10 min. (maximum accuracy)
Measuring principle ............................................. NDIR (Non-Dispersive Infrared Technology)
Measuring range CO
2
............................................................................................. 0…5000 ppm
Accuracy .......................................................... 400…5000 ppm ± 25 ppm ± 3 % of the reading
Signal update ...................................................................................................... Every 5 seconds