HVAC Control Products

The TRW1-Series is designed to measure temperature in rooms or areas. The temperature sensor output is active. It is also available with a potentiometer for set point adjustment, rotary switch for fan stage adjustment, LED for status indication and a button for presence acknowledgement.

The TDI1 Series is designed to measure temperature in air ducts or water pipes. The temperature sensor output is active Several lengths are available to cover all common duct sizes.

The TOW1-Series is designed to measure temperature in outdoor areas, plant rooms cold stores, greenhouses production plants and warehouses. The Temperature sensor is sealed in an external sensor pocket for a fast response of temperature changes. The temperature output is active.

The TDE2- Series (T_av) is designed for the average temperature measurement in air ducts, air out/inlets or heat/cool registers.The sensor output is passive.

The CRW4-Series (H&T) is designed to measure relative humidity and temperature in rooms or areas. The humidity sensor output is active, the temperature sensor output can be active or passive.

The CDI4-Series (H&T) is designed to measure relative humidity and temperature in air ducts of heating, ventilation and air-conditioning systems. The humidity sensor output is active, the temperature sensor output can be active or passive.

The GRW1- Series (VOC) is designed to measure the air quality in rooms or areas. The air quality is measured based on VOC levels (VOC = volatile organic compounds = mixed gases). The air quality sensor output is active.

The CRW5-Series (CO2&H&T) is designed to measure air quality, humidity and temperature in rooms and areas. The air quality is measured based on CO2 levels (CO2 = Carbon dioxide). The air quality sensor output and humidity are active, the temperature sensor output can be active or passive. Optional with display is available.

The PDE1-Series (dP) is designed to measure differential pressure in HVAC systems with non-flammable gases and non-aggressive gases. The control output is active (0..10V / 4..20mA) selectable. The differential pressure transmitter has internal pressure range selector.

The PDI1- Series (V&T) is designed to measure air velocity and temperature in HVAC systems with non-flammable gases and non-aggressive gases. The control outputs are active. The air velocity transmitter has internal velocity selector. Optional LCD display available.

The PPE1- Series (dP) is designed to measure differential water pressure in HVAC heating and cooling systems with light aggressive liquids and refrigerants. The control output is active.

The LOW1-Series (L) is designed for light measuring in outdoor areas, plant rooms production plants and warehouses. Light sensor output is active.

The CRC8-Series (L&M) is designed for light measuring and motion detection in rooms and spaces. Ther sensor have an integrated color filter (green filter) which is adpated to sensitivity of human eyes. Light sensor output is active.

Control and monitoring according to needs and with no auxiliary energy.

• For regulating and monitoring pressure in liquids, gases and vapours
• Especially suitable for applications in compact installations
• Upper switching point can be adjusted
• Fixed switching difference, no hysteresis setting is necessary
• Sealable
• Pressure sensor made of brass for non-aggressive media

Enables humidity control devices to be switched on according to needs

• Monitoring and regulation of relative humidity in rooms by controlling fans, drying units and air humidifiers
• Variable relative humidity as setpoint based on printed scale in % rh
• Measurement taken via a measuring element of stabilised synthetic textile tape.
• Micro-switch with fixed switching difference Xsd

Precise measurement of room temperature for energy-efficient control of HVAC installations and monitoring energy consumption

• Passive measuring element
• Temperature measurement in dry rooms
• Variants with setpoint adjuster, presence button and status LED

Effective protection from moisture damage and excessive cooling

Areas of use

Protects against dew formation on chilled ceilings. Controls a regulating unit via a holding relay that interrupts the cooling water flow or increases the cooling water temperature.

• Protects against dew formation on chilled ceilings
• Controls a regulating unit via a holding relay that interrupts the cooling water flow or increases the cooling water temperature
• Best solution for monitoring chilled-ceiling systems
• Measurement taken by a spring-mounted dew point sensor
• Active measuring element
• Variant with external sensor (EGH102F101)
• Holding relay with changeover contacts
• Includes retaining strap for pipes of Ø 10…100 mm and heat-conducting paste

Allows precise measuring of room pressures, duct pressures or volume flows to optimise energy consumption in ventilation systems

Areas of use

Optimised for applications such as filter monitoring, room or duct pressure monitoring, level monitoring in fluids, actuating frequency converters for fan control and recording volume flow, especially for room air balancing in laboratories.

• Exact measurement of positive, negative and differential pressures in gases
• Optimised for applications such as filter monitoring, room or duct pressure monitoring, level monitoring in fluids, actuating frequency converters for fan control and recording volume flow, especially for room air balancing in laboratories
• Can be ideally combined with XAFP 100 flow probe for precise measurement of volume flow
• Static dual-membrane pressure sensor on capacitive basis
• Can be fitted in any position
• Can be used for dusty air or air polluted with chemicals (not ATEX approved)
• Manufacturer’s test certificate ex works
• The measuring range can be adapted optimally to the needs of the application
• Variable zero point and filter time constant to suppress pressure surges in the system
• Display shows the actual value and the signal progression (depending on type)
• Status LED for immediate indication of operating status (depending on type)
• Measuring range can be reduced to one third (depending on type)
• Fitted to either wall or DIN rail (EN 60715)
• Cover that does not require special tools to open

Precise measuring of enthalpy and temperature for energy-efficient control of HVAC installations and monitoring energy consumption

• Measures the enthalpy and temperature in air ducts
• Measurement by means of fast capacitive measuring element
• Active measuring element
• Unaffected by flow speeds and normal contamination
• Mounting flange supplied