Voltage Drop Scaled To 10 A (Position ∆U) - Chauvin Arnoux C.A 6121 Mode D'emploi

3. Connect the test probes (guns) to the instrument as shown in the figure 8.
4. Press the START/STOP key to start the high voltage
generator and perform the test using test probes.
5. Press the START/STOP key to stop the high voltage
generator or wait for set time to elapse, if the timer
has been used.
!
NOTES :
Take care when handling HT probes - dangerous voltages!
Use the Timer ON mode or optional REMOTE CONTROL
pedal to stop the measurement when the test probes are
still connected to the tested instrument. The results
displayed that are obtained in this way can be saved in
the memory for documentation purposes.
It is advisable to connect the test probes before starting
the test using the REMOTE CONTROL pedal, to avoid
sparks and thus unwished tripping out of HV generator.
For greater safety standard VDE 104 recommends the use of optional WARNING LAMPS, connected to the instrument, in
particular when the measurements have to made at a distance from the instrument using the optional test probes, equipped with
longer cables (6 m).
When the test current is greater than the pre-set limit, the HT generator trips automatically when this value is exceeded, and the
pre-set limit value is displayed as the result.
6. Save the displayed result for documentation purposes (refer to the instructions in chapter 5.2. to find out the procedure
for saving the displayed result).
VOLTAGE DROP SCALED TO 10 A AC (POSITION ∆ ∆ ∆ ∆ ∆ U)
4.2.
How to perform the measurement ?
1. Set the rotary switch to the ∆ ∆ ∆ ∆ ∆ U position (voltage drop); the following screen is displayed :
Function name
Voltage drop scaled
to 10A (main result)
Umax key to set threshold
value of voltage drop
C.A 6121 MACHINE TESTER
230V/50Hz R=100
i
∆U
_ _ _ _ V
∆Umax
Fig.10. Basic screen in ∆ ∆ ∆ ∆ ∆ U (voltage drop) position
REMOTE WARNING LAMP 12V~ RS232C
INSULATION (M ) Ω
DISCHARGE TIME ( t)
500 - 1000 V
+
TEST
600V 600V 250V CAT III
MAINS
TEST
∆
CONTINUITY 12V/>10A ( U,R 10A
C1 P1 P2
DIELECTRIC (HV)
1 - 1.25 - 1.5 kV
Fig.8. Connection of test probes
OBJECT UNDER TEST
F1
C1
P1
F4
V
Ω
P2
C2
A
Fig.9. Test circuits
Threshold voltage drop/wire section
2
5.0V 0.50mm
I:_ _ _ _ A
U:_ _ _ _ V
10s
Timer
34
I : 1...500 mA
lim
U :
230V / 50Hz
500VA n
∆
ON
OFF
TEST ON
)
MEM/MR PRINT/RS SET-UP
C2
P
transf.
CHAUVIN
C.A 6121
ARNOUX START / STOP
MACHINE TESTER
i
TEST
∆U R
LOAD
Test current
Test voltage
Set timer value
Timer key to set timer
value or to switch it on/off
1000, 1250 or
1500 V/50 Hz
: 500 VA