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Thermokon · Room operating unit · Modbus

WRF07 x RS485 Modbus

Name: WRF07 x RS485 Modbus
Brand: Thermokon

Flush mounted room operating unit in a switch frame design, with RS485 Modbus, temperature, humidity and CO2 or VOC measurement.

Availability and lead time confirmed on your quote

Version: Potentiometer

Measures: CO2, temperature, humidity

Part number801683

Quotes answered within 24 hours, no account needed
DHL, under 15 kg £13.50 ex VAT
Technical support from the people who commission it

Specification

Communication

Protocol: Modbus RTU over RS485, half duplex

Electrical

Power supply: 15 to 35 V DC or 19 to 29 V AC, SELV
Power consumption: Max. 1.6 W (24 V DC), 3.9 VA (24 V AC)

Environment

Operating temperature: -35 to +70 °C
Humidity: Max. 85% rH, non-condensing
Protection: IP20 to EN 60529 IP rating

Performance

Inputs: 2 x digital, floating contact
Measuring range: Humidity 0 to 100% rH, CO2 0 to 2000 ppm, VOC by mixed gas sensor
Accuracy: Temperature ±0.5 K, humidity ±2% (10 to 90% rH), CO2 ±50 ppm +3% of reading

Physical

Colour: Pure white matt (Gira E2 versions listed)
Mounting: Flush in standard EU box, 60 mm diameter, 45 mm minimum depth
Dimensions: 81 x 81 x 38 mm
Weight: 50 g

Part numbers

From the manufacturer's datasheet for WRF07 x RS485 Modbus.

Overview

The WRF07 is a flush mounted room unit made in the design of several switch frame makers, including Berker, Busch-Jaeger, Feller, Gira, Jung, Merten and Peha. It combines operating elements, status LEDs and an air quality sensor behind one frame, and connects to an RS485 Modbus RTU network. The removable terminal allows pre-wiring. The parts listed here are in Gira E2, pure white matt. They measure temperature and humidity plus CO2, VOC or both. The P version has a setpoint potentiometer; the PTD version adds a presence button and a green status LED. Two digital inputs take floating contacts. Other frames, colours and labelling are available from Thermokon.