Air Flow Meter Rental and Air Quality Meter Rentals at TechRentals
TechRentals carries a variety of air flow meter rental equipment ready to be delivered to your NZ address overnight via courier. Or, you can pick it up yourself the same day. You pay only for the days you require the equipment.
Our air flow meter rental equipment allows engineers and technicians to use the highest quality devices immediately, with no capital expenditure required. TechRentals will also calibrate certain equipment and download data.
Air flow and air quality measurements need to be highly precise; that's why you need our equipment. Our instruments can measure differential pressure, air and surface temperature, humidity, dew point, CO, CO2 and more. Our instruments display data through easy to read interfaces, and can be used anywhere under any weather conditions.
Specific instruments we carry include: Airflow DM2 Pressure Manometer, Delfesko DPM S3 Dew Point Meter, DPM TT570 Digital Manometer IANZ Certification, Testo 635-2 Humidity, Temperature and Dewpoint Meter, Testo Precision Dewpoint Probe for Testo 635-2, TSI 5725 100mm Vane Anemometer, TSI 7575 Q-Trak Indoor Air Monitor with Data Logging, TSI 8371 Accubalance Balometer, TSI 8530 DustTrak II Airborne Particle Monitor, TSI 8535 Environmental Enclosure for DustTrak, TSI 9535A Hot Wire Anemometer, TSI 9545A Hot Wire Anemometer and TSI Hood 1' x 51 with frame.
When you call TechRentals, you will speak with an experienced Application Engineer who has matched tens of thousands of customers with the right equipment. Call 0800 832 475 to find out how we can match equipment to your project!
Vane anemometers rely on air flowing
through them to spin the vane proportionally
to the velocity of the flow. They offer good
averaging (damping) and can be used
in sweep mode to determine average
flow across a duct that may have varying
velocity profile. Somewhat tolerant to
turbulence compared to other forms of
anemometer. Greatest accuracy of the three
forms of anemometers.
Can sample, log, record temperature,
and calculate volumetric flow given duct
They store data internally for download to PC
in fixed format or editable in Excel.
Hotwire anemometers use the cooling
effect of air passing over a heated
element. They monitor the power required
to maintain the temperature of the element,
and this is proportional to the air flow.
Hotwire anemometers are commonly
PITOT TUBES / PITOT MATRIX
Measuring airflow by pitot principal relies on
the precise measurement of the differential
pressure of air on the tip of the pitot (the
dynamic pressure) compared to that at the
reference holes (the static pressure). The
measurement and subsequent calculation is
performed by precision micro manometer and
units of measure may include dp (Pa/mBar,
kPa) velocity, and volumetric flow.
Pitot tubes are very directional so can
be adversely affected by turbulence or
misalignment. They do however offer
extended flow measurement band (100m/s)
and may be used at elevated temperatures
and within ducting, making them ideal for
exhaust flue measurement or measurement
where hotwires would be considered
dangerous (volatile gas).
The Pitot matrix works on the same principal
but employs an array of static and dynamic
pressure holes to allow exceptional averaging
of multiple readings as is the case with an
used to insert perpendicularly into ducts,
being ~7mm diameter they can be used
where vane anemometers can not. With an
articulated head they can also be inserted
longitudinally into large ducts.
Hotwire anemometers calculate air flow
(volumetric rate) given duct dimensions, and
temperature. They will log sample figures.
FOCUS ON AIRFLOW
Advanced versions will log periodically,
measure humidity, and calculate dewpoint
and wet bulb temperature.
Data is stored internally for download to PC
in fixed format or editable.