Zero Mode; Hold Function; Peak Mode; Auto Shutdown - Chauvin Arnoux Aemc Instruments 505 Manuel Utilisateur

2.4 ∆ ZERO Mode
∆ ZERO mode enables you to view a measurement as the difference between it
and a selected "reference" value.
To enable this mode, press the ∆ ZERO button after making a measurement.
The measurement becomes the reference, and will be subtracted from
subsequent measurements. This difference will then be displayed on the LCD.
When the meter is in this mode, the ∆ symbol appears on the LCD.
Press ∆ ZERO a second time to exit this mode.

2.5 HOLD Function

Pressing the HOLD button "freezes" the measurement on the LCD. In this mode,
the word HOLD appears on the LCD.
Press HOLD again to exit this mode and resume updating the measurement
display.

2.6 PEAK Mode

In PEAK mode the instrument only updates the LCD when the instantaneous
measurement exceeds the displayed value.
To enable this mode, press the PEAK button for >2 seconds. The measurement
remains on the screen until an instantaneous measurement is made that
exceeds the displayed value, at which point the LCD displays the new
measurement.
When the meter is in this mode, the word PEAK appears on the LCD.
Press PEAK a second time to exit this mode.
In PEAK mode, pressing HOLD has no effect.

2.7 Auto Shutdown

By default, the Model 505 automatically turns OFF after 20 minutes of inactivity.
The instrument can then be re-activated by either pressing the HOLD button or
changing the switch setting.
When the meter is in this mode, the icon appears on the LCD.
To disable the Auto Shutdown feature, press and hold down the HOLD button
when turning the instrument ON.
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Clamp-On Meter Model 505