Ac Current Measurement; Voltage Measurement; Dc Voltage Measurement - BEHA Unitest CHB140 Mode D'emploi

Before selecting a new function or measuring range the in-
strument must be disconnected from any circuit.
Use the instrument only in clean and dry surroundings. Dirt
and moisture reduce the effectiveness of the insulation with
consequent danger of electrical shock, especially when dealing
with high voltages.

AC current measurement

Switch on the instrument.
Select measurement range A~
Open the clamp and surround the conductor of the current
circuit to be measured.
Make sure that the current converter (1) is completely closed
as this may result in measurement errors.
In case of range overflow, "OL" is displayed.
Read the measured value on the display.
If the display cannot be seen during the measurement or if the
value is fluctuating, the measurement value can be frozen by
pressing key "Hold"
Key "MIN/MAX" is used to display minimum or maximum value
during a measurement.

Voltage measurement

Never apply more than 600V AC/DC to the test leads (instru-
ment). If these threshold is exceeded the result could be se-
rious personal injury or damage to the instrument.
Only use the instrument in circuits fused with max. 16A.
Before switching to a new function, the probes must always be
removed from the UUT (Unit Under Test).

DC voltage measurement

Select measurement range "V
switch (3)
Select range "
Connect black test lead with COM socket and red test lead
with VΩ socket
Connect test leads to UUT
Read the measured value on the display
" with AC/DC switch key (8)
" with Range selection
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