Our Solutions
AHU (Air Handling Unit)
Demand-controlled ventilation (DCV)
AHU (Air Handling Unit)
Air handling units are used in nearly all new and renovated buildings to ensure high-quality indoor air. In addition to providing clean indoor air, HK Instruments’ easy-to-use devices enable cost-efficiency and the effortless installation and monitoring of air handling units. In comparison with analogue devices, modern Modbus devices require less wiring, which reduces the cost of cabling work.
Clean room application
Demand-controlled ventilation (DCV)
AHU (Air Handling Unit)
Pressure differences between rooms in hospitals, laboratories and other demanding environments can be controlled through pressurization and depressurization to ensure favorable working conditions and the cleanliness of products. Designed to monitor pressure differences between rooms, differential pressure transmitters measure the difference in pressure between the clean room and the outdoor air.
Demand-controlled ventilation (DCV)
Demand-controlled ventilation (DCV)
Demand-controlled ventilation (DCV)
Ventilation is boosted when a large number of people are in the building. Ventilation solutions of this type are needed in schools, offices, sports halls and hotels – that is, in all locations where it is important to maintain good air quality, even if utilization rates vary greatly. In addition to ensuring good air quality, demand-controlled ventilation reduces energy consumption in buildings.
Commercial building solutions
Commercial building solutions
Demand-controlled ventilation (DCV)
Passive outdoor temperature and light sensors are reliable in use and reduce the need for cabling. These sensors predict the need for heating in a building and control outdoor lighting sensibly and energy-efficiently. Liquid pressure transmitters can be used to monitor district heating and cooling, as well as detecting any leaks and preventing water damage. Surveillance of the differential pressure across the building envelope takes care of the health of the building and prevents serious structural problems.
Roof extraction unit
Commercial building solutions
Roof extraction unit
In apartment buildings, roof extraction units are often necessary to ensure clean, high-quality indoor air. Ventilation in apartment buildings is often set at a default level, even though the load varies. This results in a significant loss of energy. Ventilation applications in apartment buildings are easy to implement by using HK Instruments’ measurement devices. Our cost-efficient solutions do not need to be supported by an expensive building automation system.
AHU Modbus solution
Commercial building solutions
Roof extraction unit
Our main products are also available with Modbus communication. When using a bus solution, you need less wires in cables and fewer input points in the controller. As a result, you will save in costs of the devices and installation.
This makes it possible to measure four different types of data.
With the Modbus solution you only need 4 wires as opposed to 23 wires when using the traditional solution.
wireless SOLUTIONS
Wireless Networks
Wireless Modbus/BACnet technology provides a convenient way to transmit Modbus/BACnet protocol communication over wireless networks, eliminating the need for physical wiring. This makes it easier to install and reduces both costs and disruption, particularly in retrofit projects or large buildings.
Wireless Modbus/BACnet devices are typically designed to integrate seamlessly with existing Modbus/BACnet systems, enabling smooth transitions from wired to wireless setups.
One of the main advantages of Wireless Modbus/BACnet is its ability to cover long distances, which is particularly useful in large facilities where wiring might not be practical.
Using mesh networking, enhances communication reliability by allowing data to reroute through multiple nodes if needed. This ensures a stable connection even if one part of the network experiences a failure.
Why Pressure transmitters
Some of the key benefits
Air pressure sensors in Air Handling Units (AHUs) can provide several benefits in HVAC (Heating, Ventilation, and Air Conditioning) systems.
- Airflow control and balancing: Air pressure sensors can measure the pressure differentials across various sections of the AHU, such as filters, coils, and ductwork. This data can be used to monitor and control airflow rates, ensuring that the AHU is operating at the desired airflow levels. By maintaining proper airflow rates, air pressure sensors can help to optimize the performance of the HVAC system, prevent overloading of components, and ensure efficient operation.
- Energy efficiency: Proper airflow control is essential for energy-efficient operation of AHUs. Air pressure sensors can help optimize airflow rates, avoiding unnecessary overpressure or underpressure conditions that can result in energy waste. By maintaining the right pressure differentials, air pressure sensors can help to minimize fan energy consumption, reduce the load on HVAC components, and contribute to overall energy savings.
- Indoor air quality: Accurate airflow control is critical for maintaining proper indoor air quality (IAQ) in buildings. Air pressure sensors can help ensure that AHUs are providing adequate ventilation rates and preventing air leakage. By monitoring pressure differentials, air pressure sensors can detect potential issues, such as filter clogging or ductwork leaks, and trigger alarms or notifications for prompt maintenance, helping to maintain clean and healthy indoor environments.
- System protection: Air pressure sensors can provide valuable data for protecting HVAC system components. For example, they can detect abnormal pressure differentials that may indicate issues such as clogged filters, blocked ducts, or fan failures. By alerting operators to potential problems, air pressure sensors can help prevent costly damage to AHU components and extend their lifespan.
- Remote monitoring and diagnostics: Many modern air pressure sensors are equipped with communication capabilities, allowing for remote monitoring and diagnostics. This can enable real-time monitoring of AHU performance, troubleshooting, and predictive maintenance. Remote access to air pressure sensor data can help HVAC technicians quickly identify and address issues, leading to improved system uptime, reduced downtime, and increased operational efficiency.
Ensuring Indoor Air Quality
Air Pressure Transmitters, Unsung heroes in the quest for Indoor Air Quality
Introduction
Indoor air quality (IAQ) is a critical factor in maintaining a healthy and comfortable environment for occupants within commercial buildings, healthcare facilities, and residential spaces. Contaminants, allergens, and pollutants can have a significant impact on health and well-being. In this article, we'll explore the pivotal role that air pressure transmitters play in ensuring superior indoor air quality by controlling airflow and pressure differentials.
The IAQ Challenge
Maintaining a clean and healthy indoor environment requires meticulous control over air movement. Uncontrolled airflows can lead to the infiltration of pollutants, unwanted odors, and even disease-carrying microorganisms.
HVAC systems need to strike a balance between areas with different cleanliness requirements, such as hospital isolation rooms, laboratories, and cleanrooms.
Pressure Differential Monitoring
Air pressure transmitters serve as the eyes and ears of HVAC systems when it comes to maintaining pressure differentials between spaces. By accurately measuring the pressure difference between areas, these transmitters enable the creation of controlled airflow patterns that prevent contaminants from spreading from one zone to another.
Hospital Isolation Rooms:
In healthcare facilities, air pressure transmitters ensure that the pressure within isolation rooms is lower than the surrounding areas. This prevents airborne pathogens from escaping the room and infecting other patients and healthcare workers.
Laboratories:
Laboratories often have sensitive experiments that must be protected from external contaminants. Air pressure transmitters help maintain a higher pressure within the lab to prevent unfiltered air from entering.
Cleanrooms:
Cleanrooms demand precise pressure control to prevent the entry of particles that could compromise the manufacturing process. Air pressure transmitters play a crucial role in achieving and maintaining the required pressure differentials.
Benefits of Accurate Pressure Control
The contribution of air pressure transmitters to indoor air quality goes beyond containment. Here are some key benefits:
Health and Safety:
By preventing the spread of contaminants, air pressure transmitters help maintain a healthier environment for occupants, reducing the risk of infections and allergic reactions.
Regulatory Compliance:
Many industries, such as pharmaceuticals and biotechnology, are subject to strict regulations regarding air quality and contamination control. Air pressure transmitters aid in meeting these regulatory requirements.
Energy Efficiency:
Efficient pressure control minimizes the energy needed for heating, cooling, and ventilation, leading to cost savings and a reduced carbon footprint.
Occupant Comfort: Proper airflow control ensures consistent temperatures and avoids drafts, contributing to a comfortable indoor environment.
Conclusion:
Air pressure transmitters are unsung heroes in the quest for optimal indoor air quality.
Their ability to maintain precise pressure differentials plays a fundamental role in preventing the spread of contaminants and ensuring occupant health and comfort.
From healthcare facilities to manufacturing environments, these transmitters contribute to a cleaner, safer, and more efficient indoor environment.
Our Products
DPT-Flow
DPT-Flow
DPT-Flow
DPT-Flow is a flow transmitter that provides a new and easy way to measure the flow rate on centrifugal fans.
One device is suitable for a range of different fan types. It also provides an easy way to measure flow rate in a duct system. The device is supplied with an optional FloXactTM averaging measurement probe.
The DPT-Flow is designed for air handling units to measure the air flow on centrifugal fans.
DPT-Ctrl
DPT-Flow
DPT-Flow
DPT-Ctrl is a multifunctional PID controller with differential pressure or air flow transmitter.
DPT-Ctrl enables to control constant pressure or flow of fans, VAV systems or dampers. Its two lined display shows the direction of the control output and the measurement value at the same time. The optional autozero function eliminates the need for periodic manual zero point calibration.
DPT-Dual
DPT-Flow
DPT-Dual
Field adjustable, multi-range differential pressure transmitter with two pressure sensors for air
DPT-Dual series differential pressure transmitters are engineered for building automation in the HVAC/R industry. DPT-Dual is a technologically advanced transmitter measuring static and differential pressure from two different points, with field selectable units, range and output, all in a single device.
DPT-MOD
Wireless Modbus
DPT-Dual
Multifunctional differential pressure transmitters with air flow measurement and Modbus communication
DPT-MOD is a multifunctional transmitter for measuring volume flow, velocity, and static and differential pressure. The measurements can be read and the configuration done via Modbus communication. DPT-MOD requires less wiring than the traditional 3-wire transmitters because multiple devices can be connected on serial line. DPT-MOD can also be used with several different measurement probes such as FloXact™ or pitot tube, and air dampers.
SRIO
Wireless Modbus
Wireless Modbus
Multifunctional indoor air quality transmitters for building automation systems
Siro is an indoor air quality transmitter with a modern design. The transmitter is available with several optional air quality sensors. The modular device can be equipped with CO2 concentration and VOC (Volatile Organic Compounds) measurements or alternatively PM (Particulate Matter) measurement, and in addition, temperature and humidity measurements. It offers easy installation and adjustment, several different model options and various output signals that are configurable separately for each measurement parameter.
Wireless Modbus
Wireless Modbus
Wireless Modbus
W-Modbus replaces the Modbus RTU cable with a reliable wireless mesh
The W-Modbus product is built upon LumenRadio’s MiraOS and MiraMesh, consisting of several patented features enabling extremely reliable radio communication, fast installation, and extended range. MiraOS is used in a vast number of installations around the world for building automation, HVAC control, lighting control and industrial sensor networks.
A W-Modbus unit can be configured either as a Gateway that is connected to the Modbus Client, or a Node that is connected to the Modbus Server. A W-Modbus network can consist of up to 100 Nodes.
