Extech Instruments 407112 User Manual Download | Manualshive

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User's Guide

Heavy Duty Vane Thermo-Anemometer

Model 407112

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Summary of Contents for 407112

Page 1: ...User s Guide Heavy Duty Vane Thermo Anemometer Model 407112 ...

Page 2: ...suse improper wiring operation outside of specification improper maintenance or repair or unauthorized modification Extech specifically disclaims any implied warranties or merchantability or fitness for a specific purpose and will not be liable for any direct indirect incidental or consequential damages Extech s total liability is limited to repair or replacement of the product The warranty set fo...

Page 3: ...nterface kit Operating Temperature 32 F to 122 F 0 C to 50 C Operating Humidity Max 80 RH Power Supply 9V battery Power Consumption Approx 8 3mA DC Weight 0 84 lbs 381g Dimensions Main instrument 7 1 x 2 8 x1 3 180 x 72 x 32mm Sensor Head 2 8 72 mm diameter Air Velocity Range Specifications Measurement Range Resolution Accuracy of reading ft min feet per minute 80 4930 ft min 1 ft min 2 40 ft min ...

Page 4: ...dicators 3 Push buttons POWER Press to turn the meter ON or OFF HOLD Press to freeze the displayed reading o C o F Select unit of measure for temperature measurement displays MAX MIN Press to record recall highest MAX and lowest MIN readings UNIT Press to select the unit of measure for air velocity 4 Battery compartment on lower back of meter remove protective holster to access 5 Sensor input jack...

Page 5: ...air enters the vane on the opposite side of the yellow dot Refer to the diagram 3 Read the Air Velocity and Temperature measurements directly on the LCD 4 To calculate Air Volume in CFM cubic feet per minute or CMM cubic meters per minute refer to the Useful Equations and Conversions section Selecting the Temperature unit of measure o C o F Press the o C o F key to select the temperature unit of m...

Page 6: ...nce Battery Replacement The 407112 is powered by one 9V battery When the LBT low battery icon appears on the LCD or if the display does not switch on when the POWER button is pressed replace or install a 9V battery 1 Remove the protective rubber jacket surrounding the meter 2 Open the rear battery compartment using a coin or a wide blade flat head screwdriver 3 Replace the battery and carefully pa...

Page 7: ...rea equation for circular ducts Cubic equations NOTE Measurements made in inches must be converted to feet or meters before using the above formulae Unit of Measure Conversion Table m s ft min knots km h MPH 1 m s 1 196 87 1 944 3 6 2 24 1 ft min 0 00508 1 0 00987 0 01829 0 01138 1 knot 0 5144 101 27 1 1 8519 1 1523 1 km h 0 2778 54 69 0 54 1 0 6222 1 MPH 0 4464 87 89 0 8679 1 6071 1 Width W Heigh...

Page 8: ...alibration services for the products we sell Extech also provides NIST certification for most products Call the Customer Service Department for information on calibration services available for this product Extech recommends that annual calibrations be performed to verify meter performance and accuracy Copyright 2005 Extech Instruments Corporation All rights reserved including the right of reprodu...

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