Extech Instruments 480836 Guide de l'utilisateur télécharger pdf (Page 11)

480836-en-EU_V5.3 09/14

Switching the alarm function on or off

ALARM

ALM ALM

1. Press ALARM key for 2 seconds to switch the alarm function on or off. The “ALM” and

“

” symbols in the display indicates that the alarm function is on.

2. When the alarm function is on, the display will show “▲” if the instantaneous measured

value exceed the limit value.

Setting the audible sound function off

When the meter is normally turned on, the audible sound function is on.

1. Press

key to turn off the meter.

2. Press and hold MAX/AVG key and turn on the meter again to disable the audible sound, the “

” symbol will disappear from the display.

Setting the auto power off function off

READ

When the meter is normally turned on, the auto power off function is on.

1. Press

key to turn off the meter.

2. Press and hold READ key and turn on the meter again to disable the auto power off

function; the “

” symbol will disappear from the display.

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Extech Instruments 480836 Guide de l'utilisateur Page 11