Specialists in pressure

Multi-range measuring transducers for pressure, differential pressure and volume flow

PREMASGARD 211x / 212x

Efficient, convenient and network-enabled

Elegant appearance, touch-operated interface, large display, and Modbus-compatible

RYMaskon

Multi-funtional duct sensor

For humidity, temperature, pressure, differential pressure and volume flow for monitoring and controlling heating, ventilation and air-conditioning systems

PREMASGARD® 814x-Modbus

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Electronic frost protection monitor

2-phase thermostat with continuous and switching output for reliable prevention of frost damages and freezing

THERMASREG® FS-20

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FSFTM-MODBUS P

HYGRASGARD® FSFTM-MODBUS P

Item No. 1201-9226-1400-282
EAN 4 251325 617329

The room sensor and measuring transducer HYGRASGARD® FSFTM - Modbus in the in-wall housing, optionally with potentiometer, is used to measure the relative humidity and temperature of the air, and for setpoint adjustment. The following parameters are calculated internally from the measured values: relative humidity [% r. H.], absolute humidity [g/ m³], mixture ratio [g/ kg], dew point temperature [°C], enthalpy [kJ/ kg] (ignoring atmospheric air pressure) and room temperature [°C]. The parameters are queried via the Modbus interface.

A digital, long-term stable sensor is used for humidity and temperature measurement. Relative humidity [% r. H.] is the quotient of water vapour partial pressure divided by the saturation vapour pressure at the respective gas temperature.

The in-wall sensor is mounted in high-quality panel switch programmes, ideally of the brands Gira, Berker, Merten, Jung, Siemens or Busch-Jaeger (using in-wall adapters, no setpoint adjustment possible) either individually or in combination with light switches, socket outlets, etc.

It is used in non-aggressive, dust-free environments, in refrigeration, air conditioning and clean room technology, and in interior rooms, such as living rooms, offices, hotels, etc.

265,00 € net
Voltage supply 24 V AC/ DC (± 10 %)
Power consumption < 1.1 VA/ 24 V DC ; < 2.2 VA/ 24 V AC
Data points temperature, relative humidity, absolute humidity,
dew point, mixing ratio, enthalpy
and setpoint potentiometer
(no setpoint adjustment possible with Busch-Jaeger)
Measuring range, humidity 0...100 % r. H.
Operating range, humidity 0...95 % r. H. (without dew formation)
Deviation of humidity typically ± 3.0 % (20...80 % r. H.) at +25 °C, otherwise ± 5.0 %
Measuring range, temperature 0...+50 °C
Temperature deviation typically ± 0.8 K at +25 °C
Sensor digital humidity sensor
with integrated temperature sensor,

low hysteresis, high long-term stability
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
Electrical connection 0.14 - 1.5 mm², using plug terminals
Housing plastic, standard colour pure white, glossy (similar to RAL 9010)
(other colours are possible on request with colour variants
depending on the respective light switch programme)
Installation in in-wall flush box Ø 55 mm
Long-term stability ± 1 %/ year
Permissible air humidity max. 90 % r. H., non-precipitating air
Protection class III (according to EN 60 730)
Protection type IP 20 (according to EN 60 529)
Standards CE conformity,
electromagnetic compatibility according to EN 61326,
according to EMC Directive 2014/ 30/ EU
Manufacturer GIRA System 55
(other switch programmes, manufacturers, colours
and prices upon request

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