Ac Voltage Measurement; Resistance Measurement; Continuity Test; Data-Hold Function - BEHA Unitest CHB140 Mode D'emploi

AC voltage measurement

Select measurement range "V
switch (3)
Select range "~" with AC/DC switch key (8)
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

Resistance measurement

Ensure that the UUT is switched off and that no voltage is pre-
sent.
Select measurement range "Ω/•))" with Range selection
switch (3)
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

Continuity test

Ensure that the UUT is switched off and that no voltage is pre-
sent.
Select measurement range "Ω/•))" with Range selection
switch (3)
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. A signal sound is au-
dibel at resistance values less than 40Ω.
The polarity at the red test lead (socket) is "+"

Data-Hold function

If the display is not visible during measurement, press the "DH" but-
ton (9) to retain the display. The clamp can then be removed from
the conductor and the stored value read.

Min/Max Functions

Facility to switch between 4 measurement modes pressing the MIN
/ MAX key (7), in accordance with the following table:
14
" with Range selection