The Type 699 transmitters are available in switchable pressure ranges and with or without digital device. The full-version includes customer specific adjustment possibilities. Especially developed sensors for each pressure range ensure accurate long term stable measurement and the large variety of options provide the perfect platform for use in air conditioning technology as well as for fine measurement in the industrial and medical environment.

• Available with or without LCD display or modbus
• Switchable output signals
• Switchable response curve (linear or root-extracted)
• Resettable Zero Point (Reset button)
• Full scale adjustable

Medium Air and neutral gases

Pressure range -1 ... 1 mbar / 0 ... 0.3– 50 mbar

Output 0 ... 10 V, 0 ... 20 mA, 4 ... 20 mA

Accuracy < 0.5% fs

Electrical connection Screw terminals

Pressure connection Hose connector Ø 6.2 mm

The Type 604 pressure switch is used as a Δp flow switch in ventilation ducts for the control of filters and fans, and in primary and secondary control systems for the control of air dampers.

The 604 pressure monitoring switches are also ideally suited to protect heating coils from overheating and for monitoring industrial air cooling circuits.

• Easy to install
• Multi-layer gold plated contact
• Combi-bracket for vertical or horizontal installation
• Cable strain relief integrated in PG11
• Long-term stability of switching points through trapezoidal bead diaphragm
• Easy to install
• Multi-layer gold plated contact
• Combi-bracket for vertical or horizontal installation
• Cable strain relief integrated in PG11
• Long-term stability of switching points through trapezoidal bead diaphragm

Medium Air and neutral gases

Pressure range 0.2 ... 50 mbar

Electrical connection Screw terminals, flat connector 6.3 or 4.8 mm

Pressure connection Hose connector Ø 6.2 mm or inside thread

The new Type 240 flow sensor is designed for precise and stable flow measurement even under difficult conditions, with enhanced resistance to high system pressures and media temperatures.

This vortex flow sensor is ideally suited for diverse applications across numerous indus-tries and markets. The sensor paddle itself is made of the high-performance material PPSU and is PFAS-free. 
Type 240 complies with the safety standard UL 61010-1* and is approved for drinking water according to WRAS*, ACS*, and UBA* regulations.

Versatile Applications
The Type 240 is designed for liquid media with different specific viscosities, from refrigerants to drinking water. The proven Vortex principle ensures high measuring accuracy. Moreover, its compact design without moving parts makes the sensor extremely robust, low-maintenance, and durable. It can be mounted directly on the manifold and easily integrated into existing systems.

A particular highlight is its resistance to water hammer: The Type 240 can easily with-stand pressure peaks up to 100 bar (1450 psi).

Advantages Type 240

• Robustly designed to withstand system pressures of up to 16 bar (232 psi)
• Media temperature range -15 °C to +125 °C (-5 … +257 ºF)
• Wide flow range from 0.5 l/min. (0.13 gpm) [DN6] to 150 l/min. (40 gpm) [DN25]
• Hydrolysis-resistant sensor design
• Minimal pressure loss due to virtually free pipe cross-section
• Wear-free and long-term stability due to having no moving parts
• Various nominal diameters (DN6 to DN25) for use in a wide range of applications

Measuring range

• Flow range: 0.5 … 150 l/min (0.13 … 40 gpm)
• Temperature range: -40 … +125 °C (-40 … +257 ºF)
• Media temperature: -15 … +125 °C (-5 … +257 ºF)
• Accuracy: < 50 % FS: ±1 % of full scale value, > 50 % FS: ±2 % of measured value 
• Output: Analogue 4 ... 20 mA

* Expected Approval Q4/2024

Huba Control specializes in the development and production of high-precision pressure and flow sensors tailored to meet the demands of contemporary HVAC applications and components. Built on decades of expertise in sensor technology, our products are designed to deliver reliable performance across a wide range of use cases.Our sensors are utilized in key ISH Solution Fields, including:

• Heat Generation: Enhancing process efficiency in heat production with precise and dependable measurement technology
• Building Automation: Seamlessly integrating into automated building systems for efficient and intelligent control
• Data Center: Optimizing cooling and airflow systems to ensure consistent and energy-efficient operation.
• Indoor Air: Supporting indoor air quality management through accurate monitoring and control systems
• Drinking Water Circuit: Monitoring and regulating pressure and flow parameters in potable water systems to ensure safety and efficiency.

Huba Control sensors are characterized by their precision, reliability, and versatility, making them essential components for improving energy efficiency and optimizing thermal energy systems in buildings.

The type 450 is the new relative and differential pressure transmitter from Huba Control for low pressure measurements, based on the cantilevered beam technology and built in a compact housing.

The type 450 is characterized by an excellent accuracy and long-term stability in highly demanding environments and is also available with analogue and digital signal outputs (I2C). The pressure range covers from -1.5 … 1.5 mbar and from 0 … 3 – 100 mbar and is temperature compensated from -10°C up to +80°C.

Technical data:

• Medium: Air and neutral gases
• Pressure range: -1.5 ... 1.5 mbar / 0 ... 3 – 100 mbar
• Output: 0.5 ... 4.5 V, digital I2C, ratiom. 10 ... 90%
• Electrical connection: PCB
• Pressure connection: Tube connector