User's Guide
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99 Washington Street
Melrose, MA 02176
Phone 781-665-1400
Toll Free 1-800-517-8431
Back to the Extecch 407119 Product Page
Heavy Duty Hot Wire CFM Thermo-Anemometer
Model 407119A
CFM
Ft/min73.2 F
HOLD
POWER
UNIT / ZERO
AVERAGE
Hot W ire
Anemometer
REC.
ESC
Enter
FUNCTION
AREA
SETUP
407119A
Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176
FAX 781.665.0780 - TestEquipmentDepot.com
warranty, whether written or oral, is expressed or implied.
Introduction
Congratulations on your purchase of the Extech 407119A Thermo-Anemometer. The
407119A measures air velocity, air volume, and air temperature. It uses a telescoping
probe antenna to allow convenient access to grills and diffusers. Careful use of this
meter will provide years of reliable service. The Model 407119A features are listed
below.
Features
• Combination hot wire probe (for air velocity) and thermistor sensor (for temperature)
deliver rapid and precise measurements even at low air velocity values.
• Slim probe design with telescoping antenna for easy grill and diffuser access
• Air Velocity, Air Volume, and Air Temperature measurements
• 20 Reading Average feature
• Zero adjustment
• Data Hold and Record/Recall Max/Min features
• Auto Power OFF
• PC Interface (RS-232) with optional software and cable for data acquisition
Applications
Environmental testing, air conveyors, flow hoods, clean rooms, air balancing,
fans/motors/blowers, furnace velocity, paint spray booths, and others.
Model 407119A Version 5.0 October 2005 2
Specifications
General Specifications
Display Dual function 5-digit LCD
Measurement units Air Velocity: m/s, km/h, ft/min, knots, mph;
Air Flow: CMM (m
Data hold Freezes displayed reading
Sampling rate Display update rate:1 second (approx.)
Sensors Air velocity and temperature sensors: Thermistor type
MAX/MIN Memory Record and view Maximum and Minimum readings
Average feature Averages up to 20 readings
Automatic Power off Auto shut off after 15 minutes
Data Output RS-232 PC serial interface with 16-bit data stream output
Operating Temp. 32 to 122°F (0 to 50°C)
Operating Humidity Max. 80% Relative Humidity
Power Supply Four (4) ‘AA’ 1.5V batteries or optional AC adaptor
Power Current 70mA DC (approx.)
Weight (meter only) 1.15 lbs. (521g) with batteries installed
Dimensions Main instrument: 7.9 x 3.0 x 1.5" (200.0 x 76.2 x 36.8mm)
Telescoping Sensor: 0.5" (12.7mm) diameter head
Min length of sensor: 8” (260mm); Max. length: 37” (0.94m) with 5.5’
(1.7m) cable
3
/min) and CFM (ft3/min);Temperature: °C and °F
Range Specifications
Air Velocity Range Resolution Accuracy (of rdg)
m/s (meters per second) 0.2 – 17.0 m/s 0.1 ±(5% + 5 digits)
km/h (kilometers per hour) 0.7 – 61.2 km/h 0.1 ±(5% + 20 digits)
ft/min (feet per minute) 40 – 3346 ft/min 1 ±(5% + 100 digits)
mph (miles per hour) 0.5 – 38.0 mph 0.1 ±(5% + 10 digits)
Model 407119A Version 5.0 October 2005 3
Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176
FAX 781.665.0780 - TestEquipmentDepot.com
Meter Description
1. Display
2. POWER button
3. HOLD and ESC button
4. REC and ENTER button
5. UNIT, ZERO, and ▲up arrow button
6. Function and ▼down arrow butt on
7. AVG. START, CLEAR, and ►right arrow button
8. AREA SET button
9. Tilt stand
10. Battery compartment / Cover
11. Tripod mount
12. LCD contrast adjustment pot
13. System reset switch
14. RS-232 Output terminal
15. DC9V power adaptor
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Model 407119A Version 5.0 October 2005 4
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