Rel Key; Hz% Button; Hold Button; Hold Key - VOLTCRAFT MT-52 Bedienungsanleitung

REL key

The REL key enables reference value measuring. The indicated measuring resistance can be reset to
zero, e.g. to avoid including the resistance of for measuring leads in low-ohmic measurements.
Every time it is pressed, the auto range function is deactivated (display "Auto" goes out) The symbol
"REL" is displayed.
To turn the REL function off, press "REL". To activate the autorange function, keep the "RANGE" button
pressed for approx. 2s. The display shows "Auto" again.
Hz% Key
The Hz% key enables direct switching to the frequency display in voltage and current measuring areas.
Press again to switch to pulse measurement "%". Press again to switch back to normal mode. Each
press switches the function.
In the "Hz" measuring function, this button is used to switch to the pulse measurement "%".

HOLD Button

The HOLD button makes it possible to manually capture the currently measured value. When the func-
tion is active, the display shows "HOLD". Pressing the button again switches the function off again.

MODE Button

The MODE button makes it possible to skip through subfunctions. Each press switches the function.
• During current measurement (µA, mA, 10A), the device switches from AC (alternate current) to DC
(direct current).
• From resistance measurement, the device switches to diode measurement and acoustic continuity
test.

Auto power OFF function

The DMM turns off automatically after approx. 30 minutes if no button or rotary switch is operated. This
function protects the battery, saves battery power and extends the service life.
To reactivate the DMM after automatic shutdown, use the rotary switch or press any button (apart from
the light button (10)).

Display illumination

The display can be lit if you are working in a badly lit environment. To switch it on or off, press the " "
(10) button in measuring operation. Lighting remains on until it is deactivated manually or the DMM swit-
ches off automatically after approx. 30 minutes.
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