Current Measurement; Auto Power Off; Battery Replacement - Hameg HZO50 Handbuch

the output voltage depress the Auto Zero button. Ensure that
the probe is away from the current carrying conductor whilst
the probe is being nulled.

4.3 Current Measurement

– Switch on the probe and check that the LED is lit.
– Connect the output lead to an oscilloscope, multimeter or
other measuring equipment.
– Zero the probe using the Auto Zero button.
– Clamp the jaws of the probe round the conductor ensuring
a good contact between the closing faces of the jaws.
– Observe and take measurements as required. Positive
output indicates that the current flow is in the direction
shown by the arrow on the probe.

4.4 Auto Power OFF

In order to save battery life, the probe will automatically
switch itself off after approximately 0 minutes. To disable
the Auto power off function, Switch Off the probe and Switch
On whilst pressing the auto zero button. The red LED will il-
luminate and the probe will stay On until switched off again.

4.5 Battery Replacement

Warning
To avoid personal injury, always ensure the probe
is removed from any live electric circuit, and leads
are disconnected before removing the battery co-
ver. Never operate the probe without the battery
cover fitted.
The green or red LED will flash when the minimum opera-
ting voltage is approached. Refer to Fig.. Use the following
procedure.
– Unclamp the probe from the conductor, turn it off using
the On - Off switch and disconnect the output leads, from
external equipment.
– Loosen the captive screw which secures the battery cover.
Lift the cover through 0° and pull it clear of the probe
body as shown in Fig . Replace the battery and re-fit the
battery cover and fasten the screw .
0
Subject to change without notice