Discharge Time - 2 Pole System - Chauvin Arnoux C.A 6121 Mode D'emploi

3. Connect the test leads to the instrument and to the tested instrument
in accordance with the figure 18.
4. Press the START/STOP key to start the measurement.
5. Wait for the set time to elapse (if the timer has been switched on) or
press the START/STOP key again to stop the measurement.
6. Save the displayed result for documentation purposes (refer to the
instructions in chapter 5.2 to save the displayed result).
!
NOTES :
The actual test voltage is displayed during the measurement and also
after finishing the measurement until the voltage drops to 60 V.
Do not disconnect the leads until the voltage present drops down to
60 V and do not touch the test terminals during that time.
4.5.

DISCHARGE TIME - 2 POLE SYSTEM

How to perform the measurement ?
1. Set the rotary switch to ∆t (discharge time) position; the following screen is displayed.
Function name
Discharge time
(main result)
Syst. key to select
connection system
2. Select 2-pole system by pressing the SYST. key (2-point 1s is displayed)
C.A 6121 MACHINE TESTER
MAINS TEST
V
expected
MAINS TEST
input voltage
Fig.20. Voltage on MAINS TEST input
Selected connection system
∆t
_ _ _ _ S
Syst.
Fig.21. Basic screen in ∆t position
OBJECT UNDER TEST
R
C
Fig.19. Test circuits
ideal power disconnection
moment
discharge time
power disconnection moment
2-point 1s
U:_ _ _ _ V
37
L1
OFF
L2
L3
N
PE
INSULATION (M ) W + D
DISCHARGE TIME ( t)
500 - 1000 V
U :
600V 250V CAT III
n
TEST ON
CONTINUITY 12V/>10A ( U,R D 10A ) R:
DIELECTRIC (HV) I:
CHAUVIN
ARNOUX START / STOP
1 - 1.25 - 1.5 kV
Fig.18. Connection of the test leads
230 V/50 Hz
L
t
60 V
Present voltage
during the test or
disconnection
voltage after
finishing the test
500 or 1000 V DC
W
0... 0,008...200 ...500 M
1 mA nominal