Current position > News detail
『Alnor Air Flow Meter: TSI Handheld HVAC Balancing Capture Hood Testing Kits』Related information(clamp on meter|electromagnetic meter|venturi meterrotameter|orifice meter|ultrasonic flow meter|mass flow meter|coriolis mass flow meter|coriolis flow meter|magnetic flow meter|magmeter flow meter|magflow flow meter|mag meter flow meter|electromagnetic flow meter|vortex flow meter|turbine flow meter|thermal mass flow meter|thermal flow meter|rotameter flow meter)
Alnor Air Flow Meter: TSI Handheld HVAC Balancing Capture Hood Testing Kits
Quick Answer: The Alnor air flow meter and TSI handheld HVAC balancing capture hood testing kits measure air velocity, air volume, differential pressure, temperature, and relative humidity in one field tool setup. They are used for HVAC air balancing, cleanroom velocity checks, fume hood testing, and building ventilation audits. If you also need inline industrial flow meters for water, gas, fuel, or process fluids, Silver Automation Instruments supplies units for pipe sizes from DN2 to DN2000.
What the TSI Alnor Kit Measures
The core of the kit is a handheld micromanometer. TSI and Alnor offer models like the EBT731 and EBT732. These instruments read velocity from a pitot tube or hot wire probe, differential pressure, temperature, and relative humidity. Add a capture hood and the same meter reads volumetric air flow at supply or exhaust diffusers.
A typical capture hood has a lightweight base frame and fabric hood. The meter converts the face velocity signal into a volume flow reading. In practice, most balancing engineers start with a traverse grid for duct readings and then switch to the capture hood for room outlets.
Common Applications in HVAC and Facility Work
Facility teams use these kits for commissioning new HVAC installations and for periodic rebalancing. Hospitals check air changes per hour in operating rooms and isolation wards. Pharmaceutical plants verify laminar flow hoods and cleanroom pressure cascades. Food processing facilities use the same tools to confirm pressurization in packaging rooms.
We have seen this on customer sites many times. A facility engineer will carry the TSI Alnor kit from floor to floor, record readings, and compare the numbers against design specifications. The data directly supports audit reports and maintenance records. Most engineers skip the average function on the first pass. Then they return to the same diffuser because the reading does not match the design sheet.
Model Notes for Alnor and TSI Kits
The EBT731 and EBT732 are common handheld balancing meters in the Alnor range. The TSI AccuBalance 8380 is a capture hood that pairs with these meters for direct air volume readings at diffusers. Some kits also include a temperature and relative humidity probe, a velocity probe, and a carrying case. Check the model code before ordering because probes and hood bases are not always included in the base package.
Many TSI Alnor meters store thousands of data points. Some models store more than 10 000 samples. You can download readings to a PC for reports. This matters when a commissioning report must show each diffuser, each reading, and the time stamp.
Accuracy, Ranges, and Field Limitations
Handheld Alnor meters generally hold an accuracy of about 1 to 3 percent of reading depending on the range and probe. Capture hood measurements add a fixed offset. Field accuracy also depends on hood placement, supply diffuser geometry, and room pressure. Most engineers accept a variation of 5 to 10 percent on spot checks for diffusers in busy areas.
Typical capture hood flow ranges run from about 40 m3/h up to 4200 m3/h d
Where This Overlaps With Industrial Flow Meters
Alnor and TSI kits measure air in ducts and at diffusers. They are not inline flow meters for liquid or steam. If your job also involves chilled water, cooling water, diesel fuel, edible oil, or chemical dosing, you need a different class of instrument.
Silver Automation Instruments supplies electromagnetic flow meters for conductive liquids, ultrasonic flow meters for large water lines, Coriolis mass flow meters for oil and chemicals, vortex flow meters for steam and gas, and oval gear meters for fuel or viscous fluids. Common line sizes go from DN2 to DN2000. Pressure ratings reach PN40, PN64, or higher depending on the model.
Buying a Capture Hood Kit or Replacing One
If you already own a TSI Alnor kit, the first thing to check is the probe condition. Pitot tubes bend easily. Compressed fabric hoods tear at the corners. Calibration drift in the micromanometer is also common after a few years of daily use. Replacement probes and hood bases often make more sense than replacing the full kit.
For new purchases, ask the supplier for a calibration certificate, local service support, and spare probe availability. In Southeast Asia and the Middle East, lead times for TSI and Alnor accessories can be long. Some distributors stock only the meter but not the capture hood base. Before you order, confirm the kit includes the hood, meter, probes, carrying case, and calibration certificate.
FAQ
1. What does the Alnor air flow meter and TSI capture hood kit measure?
The kit measures air velocity, air volume, differential pressure, temperature, and relative humidity. With a hood attached, it reads volume flow at supply and exhaust diffusers.
2. Can this kit be used for cleanroom validation?
Yes. It works for laminar flow hood velocity checks, room pressure difference, and air changes per hour. You may also need a particle counter for ISO class verification.
3. What is the typical accuracy of a TSI Alnor capture hood?
Meter accuracy is often within 1 to 3 percent of reading. Capture hood air volume readings add a fixed offset. Field results can vary by 5 to 10 percent depending on diffuser style and placement.
4. Do you sell Alnor and TSI kits or only industrial flow meters?
Silver Automation Instruments focuses on industrial liquid and gas flow meters. We do not stock TSI Alnor HVAC kits. If you need inline meters for water, fuel, oil, steam, or chemicals, we can help.
5. What information do you need for an industrial flow meter quote?
Send us the fluid name, pressure in bar, temperature in degrees C, pipe size in DN, and flow range in m3/h or kg/h. We will reply with a model and price from our product range.
Contact Silver Automation Instruments
Tel: +86-25-68650347
Whatsapp: +86-25-52155837
WeChat: +86 15365082610
Send us your fluid, pressure, temperature, pipe size, and flow range. Our engineers will recommend a flow meter and send a quotation within 24 hours.