- New
- Sale
- Temperature
- Humidity
- Pressure
- Light Intensity & Motion
- Air Quality
- Flow
- Modbus | Wireless Modbus
- Room controller
- EtherCAT P
- Accessory
Description
Room sensor humidity/temperature
HYGRASGARD® RFTF - wModbus
The calibratable room sensor HYGRASGARD® RFTF - wModbus, in an attractive plastic housing (Baldur 2) with snap-on lid, lower part with 4-hole mounting, measures humidity (0...100 % RH) and temperature (+32...+122 °F). International system of units SI (default) can be converted to Imperial (via wModbus).
The following parameters are calculated internally from the measured variables relative humidity and temperature and can be queried via wModbus: absolute humidity, mixing ratio, dew point temperature and enthalpy (disregarding atm. air pressure).
The BMS connection is radio-based via a W-Modbus gateway.
The following parameters are calculated internally from the measured variables relative humidity and temperature and can be queried via wModbus: absolute humidity, mixing ratio, dew point temperature and enthalpy (disregarding atm. air pressure).
The BMS connection is radio-based via a W-Modbus gateway.
A long-term stable, digital humidity and temperature sensor guarantees exact measurement results. The sensor is calibrated at the factory; fine adjustment by a specialist is possible depending on the environment. DIP switch for setting the bus parameters and bus address in the de-energized state, internal LEDs for telegram status display and two-line display (illuminated, individually programmable in the 7-segment range and dot-matrix range).
Technical details
Voltage supply
24 V AC (± 20 %) and
15…36 V DC
15…36 V DC
Power consumption
< 1,2 W/ 24 V DC
< 2,2 VA/ 24 V AC
< 2,2 VA/ 24 V AC
Data points
Temperature [°C] [°F], relative humidity [% RH],
dew point [°C] [°F], absolute humidity [g/m³] [gr/ft³],
mixture ratio [g/kg] [gr/lb], enthalpy [kJ /kg] [Btu/lb]
dew point [°C] [°F], absolute humidity [g/m³] [gr/ft³],
mixture ratio [g/kg] [gr/lb], enthalpy [kJ /kg] [Btu/lb]
Measuring accuracy
typically ± 0.7 °F at +77 °F
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
0...100 % RH (humidity)
-31...+176 °F (temperature)
-31...+176 °F (temperature)
Accuracy
typically ± 2.0 % (20...80 % RH) at +77 °F, otherwise ± 3.0 %
Zero point offset
± 10 % RH (humidity)
± 9 °F (temperature)
adjustable by potentiometer
± 9 °F (temperature)
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
Electrical connection
AWG 24 - 16, via push-in terminal
Housing
plastic, material ABS,
colour pure white (similar to RAL 9010)
colour pure white (similar to RAL 9010)
Housing dimensions
3.86 x 3.86 x 1.30 in (Baldur 2)
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 according to Radio Directive 2014 / 53 / EU