Ventilation Testing
Micromanometer
Alnor® Model AXD610
AIRFLOWTM Model PVM610
Operation and Service Manual
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CONTENTS
CHAPTER 1 UNPACKING AND PARTS IDENTIFICATION ............
CHAPTER 2 SETTING-UP................................................................. 3
Supplying Power to the Alnor AXD610/AIRFLOW PVM610 ............. 3
Installing the Batteries ............................................................... 3
CHAPTER 3 OPERATION .................................................................5
Keypad Functions ........................................................................... 5
CHAPTER 4 MAINTENANCE............................................................7
Recalibration...................................................................................7
Cases..............................................................................................7
Storage ...........................................................................................7
CHAPTER 5 TROUBLESHOOTING.................................................. 9
APPENDIX A SPECIFICATIONS..................................................... 11
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Chapter 1
Unpacking and Parts Identification
Carefully unpack the instrument and accessories from the shipping
container. Check the individual parts against the list of components below. If
anything is missing or damaged, notify TSI immediately.
1. Carrying case
2. Instrument
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Chapter 2
Setting-up
Supplying Power to the Alnor AXD610/AIRFLOW PVM610
The Alnor AXD610/A
batteries.
Installing the Batteries
Insert four AA batteries as indicated by the diagram located on the
inside of the battery compartment. The Alnor AXD610/A
PVM610 is designed to operate with either alkaline or NiMH
rechargeable batteries, although it will not recharge NiMH batteries.
Battery life will be shorter if NiMH batteries are used. Carbon-zinc
batteries are not recommended because of the danger of battery acid
leakage.
IRFLOW PVM610 is powered with four size AA
IRFLOW
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Chapter 3
Operation
Keypad Functions
ON/OFF Key
ft/min / m/s Key
in H2O / Pa / hPa /
kPa / mm HG Key
0 Key
Changing Units
Press to turn the Alnor AXD610/A
PVM610 on and off. During the power up
sequence the display will show the following:
Model Number, Serial Number, Software Revision
and Last Date Calibrated.
Pressing this key changes the display to read air
velocity, converted from.
Pressing this key changes the display to read
differential pressure.
Pressing the 0 key zeroes the pressure
measurement.
To change units, first put the desired measurement
(air velocity or temperature) on the display. Then
press and hold the left, unlabelled key for five
seconds. Finally, use the
select the units.
ST and ENTER key to
IRFLOW
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Chapter 5
Troubleshooting
Table 5-1 lists the symptoms, possible causes, and recommended solutions
for common problems encountered with the Alnor AXD610/A
PVM610. If your symptom is not listed, or if none of the solutions solves
your problem, please contact TSI.
Table 5-1: Troubleshooting the Alnor AXD610/A
Symptom Possible Causes Corrective Action
No Display Unit not turned on Switch unit on.
Low or dead batteries Replace batteries.
Dirty battery contacts Clean the battery
Velocity reading
fluctuates unstable
Instrument Error
message appears
Fluctuating flow Reposition probe in
Fault in instrument Factory service required
IRFLOW PVM610
contacts.
less-turbulent flow.
on instrument.
WARNING!
The pressure sensor is protected from damage up to 7 psi (48 kPa or
360 mmHg). At higher pressure it can burst!
IRFLOW
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Appendix A
Specifications
Specifications are subject to change without notice.
Static/Differential Pressure:
1
Range
: -15 to +15 in. H2O (-28.0 to +28.0 mm Hg, -3735 to
+3735 Pa)
Accuracy: ±1% of reading ±0.005 in. H
Resolution: 0.001 in. H
Velocity From a Pitot Tube:
2
Range
: 250 to 15500 ft/min (1.27 to 78.7 m/s)
3
Accuracy
: ±1.5% at 2000 ft/min (10.16 m/s)
O (0.1 Pa, 0.01 mm Hg)
2
Resolution: 1 ft/min (0.1 m/s)
Instrument Temperature Range:
Operating (Electronics): 40 to 113°F (5 to 45°C)
Storage: -4 to 140°F (-20 to 60°C)
Instrument Operating Conditions:
Altitude up to 4000 meters
Relative humidity up to 80% RH, non-condensing
Pollution degree 1 in accordance with IEC 664
Transient over voltage category II
O (±0.01 mm Hg, ±1 Pa)
2
External Meter Dimensions:
3.3 in. × 7.0 in. × 1.8 in. (8.4 cm × 17.8 cm × 4.4 cm)
Meter Weight:
Weight with batteries: 0.6 lbs (0.27 kg)
Power Requirements:
Four AA-size batteries (included)
1
Overpressure range = 7 psi (190 in. H2O, 360 mmHg, 48 kPa).
2
Pressure velocity measurements are not recommended below 1,000 ft/min (5 m/s) and are
best suited to velocities over 2000 ft/min. Range can vary depending on barometric
pressure.
3
Accuracy is a function of converting pressure to velocity. Conversion accuracy improves
when actual pressure values increase.
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