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AN500-EU-EN v1.5 1/13
5
Auto Power OFF
The meter is equipped with an Auto Power OFF (APO) feature. The meter will automatically switch
OFF after 10 minutes of inactivity (no button pressed). Press and hold the POWER button for 1
second to disable the APO feature (the APO display icon will switch OFF). When the meter is
powered ON for the next session, the Auto Power OFF feature will be engaged again.
Change Units of Measure
1. Press the CF/UNIT button momentarily to switch between units of measure (m/s, km/hr, MPH,
ft/min, knots, CMM and CFM).
2. Press and hold CF/UNIT button for 1 second to switch between C and F temperature units.
Store Readings (Datalogging)
1. Press the RECALL/STORE button momentarily to store and hold the reading.
2. Press the RECALL/STORE button again to return to normal measurement mode.
Recall Readings
1. Press and hold the RECALL/STORE button for 1 second to enter recall mode.
2. Momentarily press the ►or ◄ button to scroll through the memory locations and view the stored
data.
3. Press the RECALL/STORE button once more to exit recall mode. The meter will display 'END'
and return to normal operation.
Up to 36 readings can be stored in the AN500
Clear Stored Readings
While in RECALL mode press and hold RECALL/STORE button for 1 second to clear stored data.
The meter will display 'CLEAR MEM' then return to normal operation.
Atmospheric Pressure Compensation Setting
1. Press and hold the SET button for 1 second to enter Atmospheric Pressure Compensation
Adjustment mode.
2. Momentarily press the ▲ or ▼ button to adjust the PA from 500-1010 mbar.
3. Press the SET button to enter the next step.
4. Momentarily press the ▲ or ▼ button to adjust the GAIN from 0.00-2.00.
5. Press and hold the SET button for 1 second to store the settings in non-volatile memory and
return to the normal measurement mode. Or press the SET to return normal operation. The
atmospheric pressure compensation parameters will reset to the previous setting when next on.
6. While in atmospheric pressure setting, the unit will return to normal operation if no button is
pressed for 8 seconds. The data will not be stored.