Instruction Manual - Cole
Contents
1. Hold keys simultaneously Release the ON key while continuing to press the Hold key An n will appear on the LCD indicating non Sleep Mode Release the Hold key The unit s Auto Power OFF feature has been defeated meaning that it will not power down until the user powers down deliberately by pressing OFF button 7 Auto Power OFF will be re activated the next time the meter is powered O O 46 WN a CHANGING THE DEFAULT SETTINGS t is possible to change the default air velocity and temperature display units and RS232 baud rate The default air velocity units are ft min and the default temperature units are degrees F To change the default units to m sec for air velocity and degrees C for temperature perform the follovving steps 1 From a povver dovvn condition press and hold the SET UP key 2 Press and release the ON key and at the second beep release the SET UP key 3 The LCD will indicate wind speed units ie ft min in the upper right hand corner and temperatue units ie F in the right lower corner 4 Press the Hold key to set the air velocity units to m sec and temp to deg C or the SET UP key to set the air velocity units to ft min and temp to deg F Press the RECORD key and an S will appear on the meter s LCD Press the HOLD key to save the setting 1200 or 2400 will appear on the LCD This is the RS232 baud rate Press the HOLD key to set 1200 or the SET UP2. key to set 2400 Press the RECORD key and an S will appear on the meter s LCD 0 Press the HOLD key to save the setting and return to the normal operating mode 5 451104 3 00 Ver 1 3 RS232 OPERATION The meter will commulcate to a PC using Window Hyperterminal 1 Connect the RS232 cable from the meter jack to the PC COM port 2 Set the COM port settings to Baud rate 2400 Data bits 8 Parity none Stop bits 1 Flow control None or Xon Xoff 3 Execute Hyperterminal 4 Data format T026 1C V00 00M5 or T078 2F V00 00FTM Where is the temperature in C or F and VXX XX is the air velocity in M sec or Ft min 6 451104 3 00 Ver 1 3
3. TION 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 T Tech Support Hotlines 781 890 7440 ext 200 extech extech com 2 451104 3 00 Ver 1 3 Introduction Congratulations on your purchase of Extech s Vane Anemometer Model 451104 The Model 451104 measures the speed velocity at which air is flowing It also measures temperature in both Centigrade and Fahrenheit degrees via a thermistor built into the air velocity sensor housing The 451104 Anemometer monitors and displays in the following units Feet per minute ft min meters per second m s kilometers per hour km hr miles per hour mph and nautical miles per hour knots Vane Anemometers offer low price and easy visual inspection of the rotating sensor s movement which aids in air duct and fume hood applications Here are a few of the applications for anemometers Specifications General Specifications Operating Temperature 1 10 C to 50 C 14 F to 122 F Max 80 RH Max 80 RH 0001 Meter Povver DC 9V 100 hours continous battery life with 20 min auto power OFF QV battery hard carry case and Instruction manual Range Resolution and Accuracy ii ak la Accur
4. User s Manual EXTECH INSTRUMENTS Vane Anemometer MODEL 451104 451104 3 00 Ver 1 3 VVARRANTY EXTECH INSTRUMENTS CORPORATION warrants the basic instrument to be free of defects in parts and vvorkmanship for one year 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 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 forth above is inclusive and no other warranty whether written or oral is expressed or implied Copyright 1999 Extech Instruments Corporation All rights reserved including the right of reproduction in whole or in part in any form CALIBRA
5. acy FS 3 0 1 bain 8 58 knots 1 4 o 0 14 108kmhr km hr 10 to 50 C 14 to 122 F Meter Description Air velocity sensor and Temperature sensor Data Hold key Min Max Record key On Off Reset key Units select Set up key LCD air velocity display LCD temperature display RS232 PC port OOMONOOARWN 3 451104 3 00 Ver 1 3 Operating Instructions Povver Up Press the ON OFF key to power the meter The LCD will illuminate all display indicators for approximately 2 seconds as it initializes The meter will display Vel in the upper left hand corner of the LCD when it is ready for use Selecting Measurement Ranges To select a measurement range after power up press the UNITS key The meter powers up in ft min mode Press the UNITS key until the desired range appears on the LCD mi h mph knots km hr Types of Measurements 1 Standard Measurement Mode This is the default mode in which the meter powers up Measurements will appear for air velocity and temperature on the LCD as they are measured Other measuring modes are discussed next 2 Continuous Running Average Measurement Mode This Anemometer has the ability to record data for up to 2 hours while displaying the running average Power the unit place the vane sensor in front of the air source to be measured press the RECORD key and the meter will begin displaying the running average Data is reco
6. rded once per second and the user has up to 2 hours before the meter memory is full 3 MIN MAX AVG Measurement Mode To measure the minimum maximum and average readings in a given period of time perform the following steps Power the unit Place sensor in front of air source Press the RECORD key The meter begins to take readings Press the HOLD button BEFORE moving the sensor away from air source Press the RECORD key once to display the reading when HOLD was pressed Press RECORD again to display MIN reading Press RECORD a third time to display the MAX reading Press RECORD a fourth time to display the AVG reading To clear all four of these stored readings remove power from the meter or press and Hold RECORD until the meter beeps twice then release the key RON 5 0 4 451104 3 00 Ver 1 3 AUTO POVVER OFF SLEEP MODE 1 This meter is equipped with an automatic shut off function After 20 minutes of non use the meter automatically shuts down after giving three warning beeps Press the ON key while the warning beeps are sounding to provide another 20 minute window To avoid wasting batteries by leaving the meter unattended and powered up this feature goes a long way in prolonging not only battery life but meter life as well However In the event that you desire to defeat the Auto Power Off mode follow these steps 2 Disable Auto Power OFF Function Remove power from meter Press and hold the ON and
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