| Application/type |
Room operating unit |
| Purpose |
Room Climate Control, Measure values |
| Measured values |
temperature |
| Interface |
RS485 Modbus |
| Functions |
temperature control |
| Operating functions |
setpoint adjustment temperature, fan stage adjustment, standby/presence detection, ECO function, status feedback via LED |
| Operating elements |
rotary encoder/push button for setpoint adjustment/ECO function, labelling {ice crystal [tail] [tail] heating symbol}, button for fan stage adjustment |
| Configuration |
BUS, DIP switches |
| Input |
1x input for NTC10k or floating contact |
| Network technology |
RS485 Modbus |
| Data transmission |
RTU, half-duplex, baud rate 9.600, 19.200, 38.400 or 57.600, parity: none (2 stop bits), even or odd (1 stop bit) |
| Operating range temperature (°C) |
-10..+50 |
| Output signal temperature |
0..+50 °C |
| Operating range humidity |
max. 85% rH non-condensing |
| Accuracy temperature |
±0,3 K (typ. at 21 °C) |
| Power supply |
15..24 V = (±10%) SELV, 24 V ~ (±10%) SELV |
| Power consumption |
typ. 0,3 W (24 V =), 0,9 VA (24 V ~) |
| Display |
7 LEDs for displaying setpoint adjustment, LED for displaying the ECO mode function |
| Enclosure |
PA6.6 |
| Colour |
polar white brilliant |
| Protection (IP) |
IP30, according to EN 60529 |
| Connection |
terminal block, max. 1,5 mm² |
| Switch ranges |
Merten |
| Switch range Merten |
M-Smart |
| Mounting |
flush-mounted in standard EU box (Ø=60 mm, depth min. 45 mm) |
| Packaging length (mm) |
90 |
| Packaging width (mm) |
90 |
| Packaging height (mm) |
80 |
| Packaging |
case packaging |
| Device length (mm) |
77 |
| Device width (mm) |
77 |
| Device height (mm) |
53 |
| Notes |
price including frame (Berker S.1, Merten M-Smart or Merten M-Plan) |
| Gefahrgut |
No |
