- New
- Sale
- Temperature
- Humidity
- Pressure
- Light Intensity & Motion
- Air Quality
- Flow
- Rymaskon
- Modbus | Wireless Modbus
- EtherCAT P
- Accessory
Description
Dew point control switch
HYGRASGARD® TW - Modbus
Quality product for the HVAC sector, accuracy ±2%
Calibratable HYGRASGARD® TW - Modbus dew point control switch incl. strap, with detached sensor head, Modbus connection, terminal box housing made of impact resistant plastic, housing cover with quick-locking screws, with/without optional display.
Calibratable HYGRASGARD® TW - Modbus dew point control switch incl. strap, with detached sensor head, Modbus connection, terminal box housing made of impact resistant plastic, housing cover with quick-locking screws, with/without optional display.
The universal surface-contact sensor serves to detect various parametres in humidity measuring. Measurands include relative humidity and ambient air temperature. These measurands are used to calculate various parametres internally. The following parametres can be retrieved via Modbus: relative humidity [%r.H.], absolute humidity [g/m³], mixture ratio [g/kg], dew-point temperature [°C], enthalpy [kJ/kg] (ignoring atmospheric air pressure) and ambient temperature [°C].
The control switch is used in non-aggressive, dust-free environments, in refrigeration, air conditioning and cleanroom engineering, hotels, engineering rooms, meeting and conference facilities. The measuring transducers provide precise detection of temperature and humidity. A digital, long-term stable sensor is used as a measuring element for humidity and temperature. Fine adjustment by the user is possible. The sensor is suitable for ceiling and duct installation or for integration in equipment.
The control switch is used in non-aggressive, dust-free environments, in refrigeration, air conditioning and cleanroom engineering, hotels, engineering rooms, meeting and conference facilities. The measuring transducers provide precise detection of temperature and humidity. A digital, long-term stable sensor is used as a measuring element for humidity and temperature. Fine adjustment by the user is possible. The sensor is suitable for ceiling and duct installation or for integration in equipment.
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
Deviation of humidity
typical ± 2.0 % (20…80 % RH); at + 25 °C, otherwise ± 3.0 %
Data points
Temperature [°C], relative humidity [% RH],
dew point [°C], absolute humidity [g / m3],
mixture ratio [g / kg], enthalpy [kJ / kg]
dew point [°C], absolute humidity [g / m3],
mixture ratio [g / kg], enthalpy [kJ / kg]
Temperature deviation
typically ± 0.2 K at +25 °C
Sensor protection
membrane filter
Measuring range
0...100 % RH (humidity)
-35...+80 °C (temperature)
-35...+80 °C (temperature)
Measuring ranges
–35...+80 °C
0...100 % RH
0...100 % RH
Zero point offset
± 10 % RH (humidity)
± 5 °C (temperature)
± 5 °C (temperature)
Ambient temperature
–30...+70 °C
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
Cable gland
2x M 12 x 1.5 (Y-adapter); with strain relief,
exchangeable, max. inner diameter 6 mm
exchangeable, max. inner diameter 6 mm
Sensor
digital humidity sensor
with integrated temperature sensor,
low hysteresis, high long-term stability
with integrated temperature sensor,
low hysteresis, high long-term stability
Permissible air humidity
< 95 % RH, non-precipitating air
Protection class
III (according to EN 60 730)
Protection type
IP 65 (according to EN 60 529)*
Protection type housing
IP 65
Standards
CE conformity
according to EMC Directive 2014/ 30/ EU,
according to EN 61 326
according to EMC Directive 2014/ 30/ EU,
according to EN 61 326
Process connection
endless metal strap with metal tightener,
300 mm, for pipes up to 3 ''
(included in scope of delivery)
300 mm, for pipes up to 3 ''
(included in scope of delivery)
Housing
plastic, UV-stabilised,
material polyamide, 30 % glass-globe reinforced,
with quick-locking screws
(slotted/ Phillips head - combination),
colour traffic white (similar to RAL 9016)
material polyamide, 30 % glass-globe reinforced,
with quick-locking screws
(slotted/ Phillips head - combination),
colour traffic white (similar to RAL 9016)
Housing dimensions
72 x 64 x 37,8 mm (Tyr 1)
Installation
TW - Modbus - external with detached sensor head
(cable length KL = 1.5 m) for mounting on pipes
(cable length KL = 1.5 m) for mounting on pipes
MODBUS-Y
Y-adapter for cable gland M16 x1.5 (on 2x M12 x1.5),
plastic (included in the scope of delivery)
plastic (included in the scope of delivery)