- New
- Sale
- Temperature
- Humidity
- Pressure
- Light Intensity & Motion
- Air Quality
- Flow
- Modbus | Wireless Modbus
- Room controller
- EtherCAT P
- Accessory
Description
Room temperature measuring transducer
THERMASGARD® RTM1-Modbus
The calibratable room temperature measuring transducer THERMASGARD® RTM1 - Modbus
with Modbus connection, in an elegant housing (Baldur 1) with snap-on lid, base with 4-hole
attachment, optionally with/without display, for detecting room temperature (0...+50 °C).
International system of units SI (default) can be changed to imperial (via Modbus).
The following parameters can be retrieved via Modbus: Temperature, dew point temperature.
Available as a room control unit in various type versions with setpoint potentiometer (%).
A long-term stable, digital temperature sensor guarantees exact measurement results.
The sensor is factory-calibrated; an environmental precision adjustment by an expert is
possible. Modbus sensor with galvanically separated RS485 Modbus interface, selectable
bus termination resistance, DIP switches for setting the bus parameters and bus address
in a currentless state, internal LEDs for telegram status display and two-line display
(illuminated, in the 7-segment and dot-matrix range, individually programmable).
Technical details
Voltage supply
24 V AC (± 20 %) and
15…36 V DC
15…36 V DC
Power consumption
< 1,0 W/ 24 V DC
< 2,2 VA/ 24 V AC
< 2,2 VA/ 24 V AC
Data points
Temperature [°F], dew point [°F]
Deviation of humidity
typical ± 2.0 % (20…80 % RH); at + 77 °F, otherwise ± 3.0 %
Sensor
digital humidity sensor
with integrated temperature sensor,
low hysteresis, high long-term stability
with integrated temperature sensor,
low hysteresis, high long-term stability
Measuring range
32...+122 °F
Accuracy
typically ± 0.4 °F at +77 °F
Zero point offset
± 10 °C, adjustable by potentiometer
Ambient temperature
storage –31...+185 °F;
operation 32...+122 °F
operation 32...+122 °F
Medium
clean air and
non-aggressive, non-combustible gases
non-aggressive, non-combustible gases
Bus protocol
Modbus (RTU mode),
address range 0...247 selectable
address range 0...247 selectable
Signal filtering
4 s / 32 s
Process connection
by screws
Electrical connection
0.2 - 1.5 mm², via terminal screws
Housing
plastic, material ABS,
colour pure white (similar to RAL 9010)
colour pure white (similar to RAL 9010)
Dimensions
3.35 x 3.35 x 1.06 in (Baldur 1)
Installation
wall mounting or on in-wall flush box, Ø 2.2 in,
base with 4 holes, for attachment to vertically or
horizontally installed in-wall flush boxes for rear cable entry,
with predetermined breaking point for cable entry
from top/ bottom in case of plain on-wall installation
base with 4 holes, for attachment to vertically or
horizontally installed in-wall flush boxes for rear cable entry,
with predetermined breaking point for cable entry
from top/ bottom in case of plain on-wall installation
Long-term stability
± 1 % per year
Permissible air humidity
< 95 % RH, non-precipitating air
Protection class
III (according to EN 60 730)
Protection type
IP 30 (according to EN 60 529)
Standards
CE conformity,
electromagnetic compatibility according to EN 61326,
according to EMC Directive 2014/ 30/ EU
electromagnetic compatibility according to EN 61326,
according to EMC Directive 2014/ 30/ EU
Display
Two-line display with illumination,
cutout 1.4 x 0.6 in (W x H),
for displaying the ACTUAL temperature and the internal diagnostics
(sensor breakage, sensor short circuit)
cutout 1.4 x 0.6 in (W x H),
for displaying the ACTUAL temperature and the internal diagnostics
(sensor breakage, sensor short circuit)
Units
switchable metric / imperial