Kikusui TOS5050, Руководство по эксплуатации

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Chapter 4 DESCRIPTION OF FRONT AND REAR PANEL ITEMS
4-9
4.1.3 Test Voltage
5
TEST VOLTAGE
Switch
The
TEST VOLTAGE
switch
5
selects a test voltage range and test mode for AC or DC
(TOS5050 has no DC test mode).
The
TEST VOLTAGE
switch
5
is enabled when the Tester is in the READY status (status that
the
READY
message
28
appears); it is disabled when the Tester is in the TEST-ON status
(status that the
TEST
message 29 appears) or when the Tester is delivering the result of PASS/
FAIL judgement (when the
PASS
message
30
or the
FAIL
message
31
appears).
The Tester takes approximately 0.5 seconds to respond to a range change by this switch. The test
cannot be started during this period. (If the
READY
message 28 has been displayed, it
disappears for this period.)
When the range you selected is entered, the TEST VOLTAGE RANGE message 19 or
AC
/
DC
test mode message
20
blinks to indicated that the entry has been completed. The
message can be reset from blinking by pressing the
STOP
switch
3
or by starting the test by
pressing the
START
switch
2
.
Model Selectable ranges and mode
TOS5101 10kV AC 5kV AC 10kV DC 5kV DC
TOS5051 5kV AC 2.5kV AC 5kV DC 2.5kV DC
TOS5050 5kV AC 2.5kV AC - -
Caution
• Before turning the
TEST VOLTAGE
switch
5
, be sure that the
TEST VOLTAGE
control 6 is in the fully counterclockwise posi-
tion (“0” position).
• During the TEST-ON period (period that the
TEST
message
29
appears), the
TEST VOLTAGE
switch
5
is disabled. During this
period, it is possible that the actual position of the switch does not
conform with the TEST VOLTAGE RANGE message
19
or the
AC
/
DC
test mode message
20
. When the test period has elapsed,
the switch is enabled and the selected test voltage range and AC/DC
mode (mode selection is for TOS5101 and TOS5051 only) are ef-
fected. Do not operate the Tester in this manner — that is, do not
change the
TEST VOLTAGE
switch
5
during the TEST-ON pe-
riod.
• Do not let the
TEST VOLTAGE
switch
5
caught on a midway in
turning it from one range position to another range position. If you
turn ON the POWER switch while the
TEST VOLTAGE
switch
5
is
caught on a midway, the TEST VOLTAGE RANGE message 19 will
indicate 0 kV, both
AC
/
DC
test mode messages
20
will appear at
the same time (except for TOS5050) and will blink to show that no
range selection has been successfully accomplished. When changing
the
TEST VOLTAGE
switch
5
, turn it securely to the required
range position.