Fluke 922 Airflow Meter/Micromanometer
The Fluke 922 is a dedicated airflow meter and micromanometer designed for HVAC technicians and building maintenance professionals who need to measure and analyze airflow conditions in ventilation systems.
Rather than measuring differential pressure alone, the Fluke 922 combines differential/static pressure, air velocity and volumetric airflow functions in one instrument. This makes it suitable for checking duct performance, diagnosing ventilation problems and performing duct traversals.
Key Features
Measures differential and static pressure
Measures air velocity up to 80 m/s
Measures volumetric airflow up to 99,999 CFM
Pressure range up to ±4000 Pa
Pressure resolution down to 1 Pa
Resolution down to 0.001 inH₂O
User-defined duct shape and size for airflow calculations
99-point data storage
Min/Max/Average/Hold functions
Bright backlit display
Color-coded pressure hoses for easier measurement identification
Ruggedized holster and wrist strap
Automatic power-off function
Differential Pressure Measurement
The Fluke 922 measures differential pressure across HVAC components, ducts and other ventilation equipment.
Its pressure range is ±4000 Pa, with a resolution of 1 Pa and specified accuracy of ±1% + 1 Pa. Other selectable units include inH₂O, mmH₂O, mbar and psi.
Air Velocity Measurement
The instrument can calculate and display air velocity from pressure measurements, with a measurement range of:
1 to 80 m/s
250 to 16,000 fpm
Resolution: 0.001 m/s or 1 fpm
Accuracy: ±2.5% of reading at 10 m/s (2000 fpm)
Airflow Measurement
The Fluke 922 can measure volumetric airflow in:
0 to 99,999 CFM
0 to 99,999 m³/h
0 to 99,999 L/s
Airflow accuracy depends on the measured velocity and the configured duct size. The user can enter the duct shape and dimensions into the instrument to calculate airflow based on the actual duct geometry.
HVAC and Ventilation Applications
The Fluke 922 is designed for practical airflow and ventilation troubleshooting, including:
HVAC system testing
Duct airflow measurement
Duct traversals
Ventilation system balancing
Pressure-drop measurement
Filter and coil pressure testing
Building pressure monitoring
Indoor comfort assessment
Building envelope pressure checks
Air distribution troubleshooting
It can be used to measure pressure drops across HVAC equipment, evaluate ventilation performance and compare indoor and outdoor pressure conditions.
Data Analysis
The Fluke 922 provides 99-point data storage and Min/Max/Average/Hold functions, allowing technicians to capture measurement results during field inspections and review variations in airflow and pressure.
The backlit display improves visibility when working in mechanical rooms, equipment areas and other low-light environments.
General Specifications
Pressure range: ±4000 Pa
Pressure resolution: 1 Pa
Air velocity range: 1–80 m/s
Airflow range: 0–99,999 CFM
Temperature measurement: 0–50 °C
Operating temperature: 0–50 °C
Storage temperature: -40–60 °C
Relative humidity: 0–90%, non-condensing
IP rating: IP40
Maximum pressure at each port: 10 psi
Data storage: 99 readings
Power: 4 AA batteries
Battery life: approximately 280 hours without backlight / 60 hours with backlight
Warranty: 2 years
FAQ
What does the Fluke 922 measure?
The Fluke 922 measures differential/static pressure, air velocity and volumetric airflow in one instrument.
What is the maximum air velocity measured by the Fluke 922?
The specified air velocity range is 1 to 80 m/s, or 250 to 16,000 fpm.
What is the pressure range of the Fluke 922?
The pressure range is ±4000 Pa, with 1 Pa resolution.
Can the Fluke 922 measure CFM?
Yes. The Fluke 922 can display volumetric airflow from 0 to 99,999 CFM. Correct duct dimensions must be entered for airflow calculations.
Does the Fluke 922 include a calibration certificate as standard?
According to Fluke's product Q&A, the Fluke 922 does not come with a calibration certificate as standard. Factory calibration is available through a Fluke Service Center if required.
