Summary of Contents for Extech Instruments 407119A
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User's Guide Heavy Duty Hot Wire CFM Thermo-Anemometer Model 407119A...
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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.
0.001 to 1 0.001 to 30.0 m CFM (cubic feet per minute) 0 – 1,271,200 ft /min 0.01 to 100 0.01 to 322.91ft Air Temperature Range Resolution Accuracy 32 to 122 ±1.5 F (0.8 (0 to 50 407119A-EN v5.3 3/14...
Function and ▼down arrow button AVG. and ►right arrow button AREA SETUP button Tilt stand Battery compartment / Cover Tripod mount LCD contrast adjustment pot System reset switch RS-232 Output terminal DC9V power adaptor 15 14 13 12 407119A-EN v5.3 3/14...
9. To Zero the meter display, press and hold the ZERO button until the second beep. Warning! Do not touch the air velocity or temperature thermistors inside the sensor head while moving the sensor cover. 407119A-EN v5.3 3/14...
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9. Place the probe in the area under test. The main LCD digits will indicate the air flow in CFM or CMM. If the CFM or CMM reading exceeds 99999, use the displayed X10 multiplier to calculate the reading. 10. To turn the meter off, press and hold the POWER button until the meter switches off. 407119A-EN v5.3 3/14...
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To temporarily disable this feature (until the meter’s power is cycled), press the REC button and enter the RECORD mode. Alternatively, go to the advanced programming section (later in this manual) for instructions on how to disable it long term. 407119A-EN v5.3 3/14...
PC Interface The 407119A is equipped with a 3.5mm jack (side compartment) for connection to a PC for data acquisition purposes. The meter’s data output is a 16 bit data stream. For streaming of data to a PC via the RS232 Output jack, the optional 407001-USB kit (RS232 to USB cable and driver CD) along with the 407001 software (available free at www.extech.com) are required.
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Unit of Measure Conversion Table ft/min knots km/h 1 m/s 196.87 1.944 2.24 1 ft/min 0.00508 0.00987 0.01829 0.01138 1 knot 0.5144 101.27 1.8519 1.1523 1 km/h 0.2778 54.69 0.54 0.6222 1 MPH 0.4464 87.89 0.8679 1.6071 407119A-EN v5.3 3/14...
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