Operation; Preparation And Safety Measures; Current Measurements - Unitest CHB 15 Bedienungsanleitung

4.0 Operation

4.1 Preparation and safety measures

Fitting the battery
Before using the instrument, the battery must be fitted. This is
carried out as follows:
1. Separate the instrument from any circuit, and remove the test
leads.
2. Open the cover by removing the screw and push in direction of
the arrow.
3. Fit new batteries (type 1,5 V IEC LR6), taking care that the
polarity is correct. Make sure that no wires are trapped between
the cover, and close it again.
4. The instrument is now ready for use.
ATTENTION !
• Before switching to a new function, the probes must always be
removed from UUT.
• Use the instrument only in clean and dry surroundings. Dirt and
moisture reduce the effectiveness of the insulation, with conse-
quent danger of electric shock, especially when dealing with
high voltages.
• Use the instrument only in the specified ranges.
• Before making measurements, verify that the instrument is
functioning properly, for example by testing on a known voltage
or current.
• Make sure that the test leads are undamaged.

4.2 Current Measurements

ATTENTION !
Never measure currents in uninsulated conductors carrying more
than 250 V !
DANGER !
Only handle test leads and probes on the grips provided. Avoid
touching the probes under any circumstances.
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