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2) With the REC symbol on the display : 

(a) Press the " Max./Min. Button " ( 3-3, Fig. 1 ) once and the 
" Max " symbol along with the maximum value will appear on
the display.
(b) Press the " Max./Min. Button " again, the " Min " symbol
along with the minimum value will appear on the display.
(c) To exit the memory record function, press the " Max./Min.
 Button " continuously for at least 2 seconds. The display will
revert to the current reading.
(d) Clear the Max./Min. value recorded by pressing the 
" Hold Button " ( 3-2, Fig. 1 ) once. Previous recorded
Max./Min. value will be given up and then revert to the
REC.  function keep on recording.

5-3 Auto Power Off Disable

In order to prolong the battery life, the instrument has "Auto
Power Off " function. The meter will switch off automatically if
no buttons are pressed for around 10 minutes.

6. BATTERY REPLACEMENT

1) When the LCD display shows "           " symbol, it's

necessary  to replace a new battery. However  measurement
may still be made for several hours after the low battery
indicator appears.

2) Open the " Battery Compartment / Cover " ( 3-7  Fig. 1) and

remove the battery.

3) Install a 9V battery (Alkaline or Heavy duty type) and then

reinstate the cover.

5

 0306-LM-81AM

Summary of Contents for AVM-81AM

Page 1: ...ANEMOMETER ...

Page 2: ...ONT PANEL DESCRIPTION 3 3 1 Power Button 3 3 2 Hold Button 3 3 3 Max Min Button 3 3 4 Unit Button 3 3 5 Air Flow Sensor 3 3 6 LCD display 3 3 7 Battery Compartment Cover 3 3 8 Wristlet 3 4 MEASURING PROCEDURES 4 5 OTHER FUNCTIONS 4 6 BATTERY REPLACEMENT 5 ...

Page 3: ...ssures excellent performance and accuracy Concise and compact buttons arrangement easy operation Memorize the maximum and minimum value with recall Air velocity measuring units selectable by pressing button on the front panel for five kinds of units Hold function to freeze the current reading value 2 SPECIFICATIONS 2 1 General Specifications Display 8 mm LCD display Measurement Air velocity Operat...

Page 4: ...es 2 2 Electrical Specification 23 5 Unit Range Resolution Accureacy ft min 80 to 5910 ft min 1 ft min 20 m s m s 0 4 to 30 0 m s 0 1 m s 3 F S km h 1 4 to 108 0 km h 0 1 km h 20 m s MPH 0 9 to 67 0 mile h 0 1 MPH 4 F S knots 0 8 to 58 3 knots 0 1 knots Remark ft min feet per minute m s meters per second km h kilometers per hour MPH miles per hour knots nautical miles per hour 2 ...

Page 5: ...3 FRONT PANEL DESCRIPTION Fig 1 3 1 Power Button 3 2 Hold Button 3 3 Max Min Button 3 4 Unit Button 3 5 Air Flow Sensor 3 6 LCD display 3 7 Battery Compartment Cover 3 8 Wristlet 3 ...

Page 6: ...lue indicated From a pratical point of view the velocity may fluctuate 5 OTHER FUNCTIONS 5 1 Hold Function Pressing the Hold Button 3 1 fig 1 will freeze the current value with a HOLD symbol on the display Press again to release the hold function 5 2 Data Record Function 1 The Data Record function records displays the maximum and minimum reading values Start the Data Record function by pressing th...

Page 7: ...2 Fig 1 once Previous recorded Max Min value will be given up and then revert to the REC function keep on recording 5 3 Auto Power Off Disable In order to prolong the battery life the instrument has Auto Power Off function The meter will switch off automatically if no buttons are pressed for around 10 minutes 6 BATTERY REPLACEMENT 1 When the LCD display shows symbol it s necessary to replace a new...

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