Seaward Sentinel - Manual (Page 12)

ELECTRICAL SAFETY TESTER
USER MANUAL
17
Output voltage or current for each step
A C : Output voltage (0.100~ 5.000 kV)
D C : Output voltage (0.100~ 6.000 kV)
I R : Output voltage (50V/100V/500V/1000V)
G B : Output current (3.00~42.00A)
Output
Voltage/Current
C N T : Output current (10mA)
The status of tester includes:
M E N U : Browse and check steps of test.
E D I T : Edit parameters
S A V E : Save parameters
U T I L : Browse and check system utility.
R E A D Y: Ready for test
T E S T : Testing
P A S S : The result of test is pass
F A I L : The result of test is fail
Status
S T O P : Stop the test
ARC
If the ARC function is enable, the sign “＊” means that there
is ARC during test.
Lower and upper limit of measurement
I m a x / I m i n : Current measurement limit (ACW & DCW) Measurement
Limit
R m a x / R m i n : Resistance measurement limit(IR&GB&CNT)
Ramp time and test time
A C : Ramp (000.0~999.9s)
Test (000.5~999.9s)
D C : Ramp (000.0~999.9s)
Test (000.5~999.9s)
I R : Test (001.0~999.9s)
G B : Test (000.5~999.9s)
Ramp/Test
Time
C N T : Test (000.5~999.9s)
time
voltage
ramp test
time
ELECTRICAL SAFETY TESTER
USER MANUAL
18
CHANNEL
Hi: 00
Lo: 00 Set the Scanner Box to output and return function
through the setting of CH1 and CH2. If the setting is
Hi=01 and Lo=02, that means the high voltage is
output from CH1 and return from CH2. If Hi and Lo
are set to 00, that means no signal is sent to Scanner
Box.
＊ When the measured load becomes capacitive, the test time must be
extended.
＊ Ramp Time
Ramp Time setting provides a fast and safe way to detect short circuit
or faulty wiring of your Device Under Test.
GPT-700A monitors the voltage level during the first stage of Ramp
Time to find out short condition. If the voltage still remains less than
80V after 0.1s, GPT-700A cuts off the output and displays the
message “Short”. Therefore the short current will be shut off before it
grows beyond Imax, the current limit setting.
When checking GPT-700A current accuracy, if the DUT has less than
2Mohm input impedance, turn off the Ramp Time setting. GPT-700A
may shut down the voltage taking the low impedance as a sign of
short circuit.