

Calibratable THERMASGARD®RTM1 Modbus room temperature measuring transducer with Modbus connection, with/without optional display for showing the actual temperature, in an elegant housing made of plastic, with snap-on cover, base with 4-hole attachment, for mounting on vertically or horizontally installed in-wall flush boxes, with predetermined breaking point for on-wall cable entry.
The calibratable room operating device measures the temperature of non-aggressive gases, particularly air. Options include a setpoint potentiometer as an operating element as well as device versions with LCD display for showing temperature/humidity/dew point or setpoint readings. The displays (LCD) and the retrieval of measureed and control values are triggered via the Modbus interface.
Voltage supply
24 V AC (± 20 %) and
15…36 V DC
Power consumption
< 1,0 VA/ 24 V DC
< 2,2 VA/ 24 V AC
Data points
temperature, relative humidity, dew point,
setpoint potentiometer
Deviation of humidity
typical ± 2.0 % r. H. (20…80 % r. H. ); at + 25 °C, otherwise ± 3.0 % r. H.
Temperature deviation
typically ± 0.2 K at +25 °C
Measuring range
0...+50 °C
Zero point offset
± 10 °C, adjustable by potentiometer
Ambient temperature
storage –35...+85 °C;
operation 0...+50 °C
Medium
clean air and
non-aggressive, non-combustible gases
Bus protocol
Modbus (RTU mode),
address range 0...247 selectable
Signal filtering
4 s / 32 s
Process connection
by screws
Sensor
digital humidity sensor
with integrated temperature sensor,
low hysteresis, high long-term stability
Housing
plastic, material ABS,
colour pure white (similar to RAL 9010)
Dimensions
85 x 85 x 27 mm (Baldur 1)
Permissible air humidity
< 95 % r. H., non-precipitating air
Protection class
III (according to EN 60 730)
Protection type
IP 30