21
STEP 2. Select external system measurement by pressing SYST. key (exter. 60 V 1 s or exter. 120 V 1 s is displayed).
STEP 3. Select 60 V or 120 V measuring system using Ulim key.
STEP 4. Connect test cable to the instrument and to the equipment to be tested as shown in figure below.
U :
U
:
t
:
R :
in
lim
lim
in
c
t:
∆
0V p ...8 0 0V p
60 V,1 20 V
1s
96 M
Ω
D IS C O N N E C T
dis con n ec tio n
elem e nt
0...10s
Fig. 27. Connection of test cable
STEP 5. Press START/STOP key to prepare the instrument for switching off mains voltage. Ready is displayed after approx 1
s.
Low Voltage message is displayed if the voltage on input mains is not appropriate (less than min working voltage) or the input is
not connected to the mains (check input circuit, mains voltage, double connection element is not properly plugged in, etc.).
STEP 6. Pull out double connection element and wait for the result to be displayed. If the disconnection voltage is high enough
to carry out a measurement, (see fig. 25) Start message is displayed and the measurement will be performed. If the
voltage is not high enough then the result of 0.0 s and Repeat message are displayed. In this instance repeat
measurement from STEP 3. If the result 0.0 s and Repeat message reappears repeat measurement 5 to 10 times
successively, the result 0.0. it can be accepted as valid. Timeout is displayed if the double connection element is not
pulled out in 10 s, or discharging time is higher than 10 s.
STEP 7. Save displayed result for documentation purposes (see instructions in chapter 5.2. on how to save displayed result).
4.7. DISCHARGE TIME-INTERNAL
L
N
V
A P P LIA N C E M UL TITE S TE R
C.A 6160
re s t
v o lta g e
te s t
O B JE CT UN DER T EST
T E S T
Fig. 28. Test circuitry
expe cted
Line voltage
Fig. 29. Expected voltage on tested object input
