Measurement Of A Very Low Value - Chauvin Arnoux C.A 6240 Manual De Instrucciones

...or disconnect one of
the 2 clips.
In both cases, the
l a s t m e a s u re m e n t
made is displayed,
HOLD
along with the
symbol.
2nd
_
I
A
HOLD
AVG

3.1. MEASUREMENT OF A vERY LOW vALUE



AVG
START/STOP
±I

_
I
HOLD
AVG
START/STOP
+I
A
HOLD
mΩ
DISPLAY
mΩ
_
I
A
µ Ω
DISPLAY
A
R(+I)
µ Ω
0
If the measurement is stopped by the
disconnection of a clip, simply connecting
it to another object starts another
measurement, with no need to press the
START/STOP key.
To display the voltage on the terminals of
mV
the resistance instead of the measurement
current, press the DISPLAY key.
Reverse the direction of the current by
pressing the ±I key and the instrument
displays the average:
R(+I) + R(-I)
R =
AVG
T h i s s e r v e s t o e l i m i n a t e a n y
thermoelectric effect.
+I +V -V
-I
R(+I) R(-I)
R(-I)
C
1
P
1
P
2
C
2
2
To display the
values R(+I) and
R(-I), press the
DISPLAY key.