Fieldpiece
Air Velocity and
Air Temperature
Accessory Head
Model: AAV3
Description
The model AAV3 accessory head is designed to measure air velocity and air temperature. It can be used to estimate CFM (cubic feet/minute). You can measure air velocity in feet/minute, miles/hour, meters/second, or kilometers/hour. The AAV3 also measures temperature in ºC or ºF.
How to use
1.Connect to COM and Volts jack. Slide AAV3 air velocity and temperature accessory head onto Fieldpiece "stick" meter, data logger, electronic handle or connect to most other meters using Fieldpiece ADLS2 deluxe test leads.
2.Set meter to 200mVDC or 2000mVDC range.
3.Power on the AAV3 and select English or metric along with desired unit of measure.
4.Select display mode. Average shows a steady, average of the last 16 seconds of readings. Real time shows every reading and will change immediately if there is a change in air velocity. (Note: temperature readings are always in real time regardless of the setting.)
5.If the green “LCD x 100” LED lights up on the AAV3, you must multiply the LCD reading by 100 to get the true value.
Use it your way |
|
Specifications |
|
|
Range (wind velocity): 60-5900 Ft/min, 0.7-67.0 |
|
|
mph, 0.3-30.0 M/s, 1-108 KM/hr |
|
|
Accuracy (wind velocity): ±3% + 1digit @ |
|
|
73ºF±5ºF (23°C±2°C), <95% relative humidity |
|
|
Range (temperature): -20ºC to 60ºC, -4ºF to |
|
|
140ºF |
|
|
Accuracy (temperature): |
|
|
±1ºF at 32ºF to 113ºF; |
|
|
±2ºF at -4ºF to 32ºF, 113ºF to 140ºF |
|
|
(±0.5ºC at 0ºC to 45ºC; |
|
|
±1ºC at -20ºC to 0ºC, 45ºC to 60ºC) |
|
|
Resolution: ±0.1ºF/C |
|
|
Operating temperature: 32 to 120 ºF (0-49°C) |
|
|
Operating relative humidity: <95%RH |
|
|
Storage temperature: -4 to 140ºF (-20 to 60°C), |
|
|
0 to 80% R.H. with battery removed from meter. |
|
|
Sensor type: Thermistor temperature sensor |
|
|
Battery life: 200 hours typical. No measurable |
|
|
current draw when in "off" position. |
EHDL1 AHDL1 w/ Meter DL3 |
HS30 |
Low battery indication: Red LED |
Battery: 9V |
Auto off: Approx. 10 minutes.
OPERATOR’S MANUAL
Volumetric Flow
There is no substitute to using a hood to measure volumetric flow (CFM or L/s). The AAV3 can, however, be used to estimate volumetric flow.
Volumetric flow equals air velocity (in feet/minute or meters/second) multiplied by the free area (in square feet or square meters). The AAV3 measures air velocity. Then all you need is the size of the opening or "free area" to find volumetric flow.
Air velocity: Because the air velocity is different at different points of the register, it may be best to estimate the average air velocity by averaging the readings from several spots. A common method is to take readings from nine different spots and average them. The DL3 data logger can make finding the average very easy. Just take several data points by pressing a button on the data logger then read the average from the LCD.
Free area: Free area is the area of the register that air can move through. Estimate free area by measuring the open area of the register in feet or meters (including the fins, excluding the border).
For CFM: Multiply the free area by the air velocity to get CFM. For example a register that has an open area that is 12 inches (one foot) by 6 inches (one half foot) has a free area of 1ft x 1/2ft = 1/2 ft2. If the average air velocity is 600 ft/min, then the
CFM is 600 ft/min x 1/2 ft2 = 300 CFM.
For L/s: Multiply the free area by the air velocity to get L/s. For example a register that has an open area that is 0.3 meters (30cm) by 0.15 meters (15cm) has a free area of 0.3m x 0.15m = 0.045 m2. If the average air velocity is 3 m/s, then the L/s is 3 m/s x 0.045 m2 x 1000 L/m3= 135 L/s.
Make it easy with the data logger
Use your AAV3 with the DL3 data logger. Press the RECORD button a few times on the DL3 data logger to log a few readings and then just press AVG to find your average air velocity.
Free area length
Free area width
One year limited warranty
This head is warranted to the original purchaser against defects in material and workmanship for a period of one year from the date of purchase.
During the warranty period, Fieldpiece will replace or repair the defective unit, subject to verification of the defect.
Any damage to the sensor from dirt, mechanical abuse, or overexposure to damaging chemicals, including overexposure to carbon monoxide, are not covered under this warranty. Also not covered are defects resulting from abuse, neglect, accident, unauthorized repair, alteration, or unreasonable use.
Any implied warranties arising out of the sale of a Fieldpiece Instrument, including but not limited to implied warrenties of merchantacility and fitness for a particular purpose, are limited to the above. Fieldpiece shall not be liable for loss of use of the instrument or other incidental or consequential damages, expenses, or economic loss, or for any claim or claims for such damage, expense, or economic loss.
Local laws vary. Above limitations or exclusions may not apply to you. This warranty gives you specific legal rights, and you may also have other rights which vary by location.
Service
Return any defective AAV3 to Fieldpiece for warranty service along with proof of purchase. Contact Fieldpiece for out of warranty repair charges.
Fieldpiece Instruments, Inc.
California, U.S.A.
www.fieldpiece.com
v06
Loading...