Extech Instruments 451126 User Manual Download Page 6

Model 451126 V2.0  6/08 

Datalogging 

Instantaneous (One-Shot) Datalogging 

To record one data point at any desired time, set the sampling rate = 0 by pressing           

in the VEL mode. The previously stored reading will be displayed on the upper LCD line. 

Enter a '0' sampling time and then press            . Now, each time            is pressed, the 

present reading will be stored in non-volatile memory. 

Automatic Datalogging 

1.  Set the Sampling rate for datalogging by pressing            . The previous sample 

rate will appear. 

2.  Enter a value from 1 to 240 seconds using the numeric keypad. Press            when 

done. 

3.  Press           to begin storing readings in non-volatile memory every n seconds (n = 

the value entered in step 2. above). 

4.  The REC icon will appear on the LCD indicating that the datalogging mode is 

activated. 

5.  The maximum number of readings that can be stored is 2000. 

6.  To stop datalogging, press           again. The datalogger will automatically stop 

recording data when 2000 records have been stored. 

See software section of this manual for instruction on viewing logged data. 

IMPORTANT NOTE:

 If power is removed before datalogging is properly halted, 

data will be lost. 

Reading Stored Data Sequentially 

Press           , the RECORD NUMBER will briefly display on the upper LCD line before 

the measurement data appears. Press           to return to normal operation. 

Reading Stored Data Randomly 

1.  Press           to enter the READ mode. 

2.  Press           and enter the number of the record in question. 

3.  Press           again and the desired data will be displayed. 

4.  Press           to return to normal operation. 

Clearing Datalog Memory 

Press and hold           while powering up the meter to clear the meter's datalog 
memory. 

Summary of Contents for 451126

Page 1: ...ype Anemometer can indicate Air Velocity in five units of measure Feet per minute Meters per second Miles per hour Kilometers per hour and Knots with Temperature displayed in o C or o F units The mete...

Page 2: ...Supply 9V battery Battery life 50 hours typical Power Consumption Approx 3 mA DC Weight 0 77 lbs 350g Dimensions Meter 3 46 x 6 61 x 1 03 88 x 168 x 26 2mm Vane 2 6 x 5 22 x 1 15 66 x 132 x 29 2mm Acc...

Page 3: ...is displayed in degrees Fahrenheit 2 3V 2 3V Maximum mode is selected CFM Cubic feet per minute ft 3 min MAX Maximum reading mode is selected CMM Cubic meters per minute m 3 min VEL Air Velocity measu...

Page 4: ...y being measured by the vane s built in type K thermocouple 2 Press to select C or F Temperature is displayed on the upper line of the LCD Air Flow 1 Power the meter by pressing 2 Press to select airf...

Page 5: ...4 The previously stored area value will be displayed on the upper LCD display line To enter a new area value press The lower display line will blank waiting for the user to program new data Use the nu...

Page 6: ...the LCD indicating that the datalogging mode is activated 5 The maximum number of readings that can be stored is 2000 6 To stop datalogging press again The datalogger will automatically stop recordin...

Page 7: ...4 x 768 pixels 451126 Anemometer Operating System Compatibility Windows TM 95 98 NT 2000 XP VISTA Hardware Connection The meter connects to a PC with the supplied DB 9 to DB 9 interface cable The mete...

Page 8: ...le go to Windows Device Manager Ports It is here the COM PORTS will be listed If using the meter with a Serial to USB Adaptor make sure you install the driver that is supplied with the 3 rd party adap...

Page 9: ...3 min Air Velocity m sec x Area m 2 x 60 Units Conversion Table m s ft min knots km hr 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 1 152...

Page 10: ...ore 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 resulti...

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