User's Manual Model 407112 Heavy Duty Vane - Cole
Contents
1. Accessories Instruction manual Sensor probe Air Velocity Specifications Measurement Range Resolution Accuracy of full scale 2 14 Temperature Specifications Range probe only Q amp z 32 F to 122 F 0 C to 50 C 0 1 F 0 1 C 1 5 F 0 8 C 2 407112 V2 1 1 01 Meter Description FOO ZO WSN LCD Display Keypad Battery compartment rear Sensor input socket RS232 output socket Vane sensor Protective holster Operation 1 2 3 4 5 Install the Sensor Plug into the Sensor Input Socket Press Power Off On to turn the instrument power ON Select the temperature units by pressing C F The display will indicate C or F as selected Select the air velocity units by pressing Unit The display will indicate m s km h ft min knot or mile h as selected The meter will now display the current temperature and air velocity yellow dot lt lt airflow lt Note For maximum accuracy in temperature measurements the yellow dot on the vane should be facing the direction of the air flow Data Hold During the measurement pressing Data Hold will hold the displayed value and the LCD will display the D H indicator Press Hold again to release the data hold function Data Record MAX MIN AVG Readings When selected the DATA RECORD function records and stores the maximum minimum and average readings To st2. User s Manual EXT INSTRUMENTS Model 407112 Heavy Duty Vane Thermo Anemometer Introduction Congratulations on your purchase of Extech s Heavy Duty Anemometer The Heavy Duty Anemometer is an instrument used for measuring the speed velocity at which air is flowing Extech s vane anemometers indicate air flow in five units of measure Feet per minute Meters per second Miles per hour Kilometers per hour Knots Vane anemometers use a remote wheel that freely rotates in response to air flow In addition to air velocity Extech s Vane Anemometers measure temperature in both Centigrade and Fahrenheit via a built in thermistor Specifications Dual function 13 mm 0 5 Super large 1999 count LCD display with contrast adjustment for best viewing angle m s km h ft min knots mph Temp C F Sensor Structure Air velocity sensor Conventional twisted vane arms and low pee friction ball bearing design Temperature sensor Precision thermistor Records Max Min and Average readings with RECALL Auto shut off saves battery life or manual off by push button Data Output RS 232 PC serial interface Operating Temp 0 C to 50 C 32 F to 122 F instrument only Operating Humidity Max 80 RH Power Supply 006P DC 9V battery Heavy duty type Approx DC 8 3 mA i 0 84 LB 381 g included batteries amp probe Main instrument 7 1 x 2 8 x1 3 inch 180 x 72 x 32 mm Sensor Head Round 72 mm diameter
3. art the DATA RECORD function a b c d e Press RECORD once The REC indicator will appear on the display Press RECALL once to retrieve the Max reading The Max indicator along with the maximum values will appear on the LCD display Press RECALL once the Min indicator along with the minimum values will appear on the LCD display Press RECALL once the AVG indicator along with the average values will appear on the LCD display To disable the Data Record function press Record again The display indicators REC Max Min AVG will disappear 3 407112 V2 1 1 01 Measurement Considerations 1 The meter is designed with an Auto shut off feature to save battery life The power will automatically shut off if no function button is pressed in any 10 minutes period To disable Auto shut off while taking measurements press RECORD and engage the record function 2 The volume of air flowing through a duct or vent can be determined by taking the area of the duct in square units i e square feet and multiplying this value by the measured linear velocity i e feet per minute This gives ft min x f ft min CFM Battery replacement The low battery indication appears as a LBT on the left corner of the display When the LBT appears replace the battery as soon as possible Reliable readings can be obtained for several hours after the first appearance of the low battery indication To repla
4. ce the battery 1 Remover the meter s rubber protective holster 2 Pry the Battery Cover off using a small coin or screwdriver and remove the battery 3 Replace the 9V battery heavy duty type and reinstall the cover 4 Make sure the battery cover is secured after changing the battery Calibration and Repair Services Extech offers complete repair and calibration services for all of the products we sell For periodic calibration NIST certification or repair of any Extech product call customer service for details on services available Extech recommends that calibration be performed on an annual basis to insure calibration integrity Warranty EXTECH INSTRUMENTS CORPORATION warrants this instrument to be free of defects in parts and workmanship for three years from date of shipment a six month limited warranty applies on sensors and cables If it should become necessary to return the instrument for service during or beyond the warranty period contact the Customer Service Department at 781 890 7440 ext 210 for authorization A Return Authorization RA number must be issued before any product is returned to Extech The sender is responsible for shipping charges freight insurance and proper packaging to prevent damage in transit This warranty does not apply to defects resulting from action of the user such as misuse improper wiring operation outside of specification improper maintenance or repair or unauthorized modification Extech
5. specifically disclaims any implied warranties or merchantability or fitness for aspecific 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 forth above is inclusive and no other warranty whether written or oral is expressed or implied Copyright 2001 Extech Instruments Corporation All rights reserved including the right of reproduction in whole or in part in any form 4 407112 V2 1 1 01 Useful Equations and Conversions Area equations Cubic equations CFM ft min Air Velocity ft min x Area ft CMM m min Air Velocity m sec x Area m x 60 Units Conversion Table ms fmn knots kmh MPH knot 0o54 w27 1 18519 1 1623 __ 0 5222 MPH 04464 87 89 08679 167 7 RS232 PC Interface The meter has a RS232 serial data port This interface was designed to operate with the Extech Data Acquisition Software p n 407000 and enables the user to capture store and display readings on a PC For more information contact Extech or refer to the 407000 user s manual for details on the PC interface T Tech Support Hotlines 781 890 7440 ext 200 extech extech com www extech com 5 407112 V2 1 1 01
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