Kikusui TOS5200, User Manual

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TOS5200
About Judgment
The TOS5200 judges whether a test results in PASS, L-FAIL, or U-FAIL on the basis of the
limits that are set in advance.
Effectiveness of the lower limit
Normally, even a good DUT will have a certain degree of leakage current. Setting the upper
limits just within the boundaries of the characteristic range of the DUT is useful in detecting
breaks in the test leads and poor connections, enabling you to perform highly reliable testing.
In withstanding voltage tests, you can perform tests effectively by enabling the lower limit with
W COMP.
Invalid Settings
If you specify an invalid value for a setting, a message blinks on the screen. While a message
is blinking, the READY LED turns off, and you cannot start a test. You also cannot select
other items.
Specify a valid value.
Judgment result Description Display Buzzer
PASS When the test time elapses (TIMER is 0 sec-
onds), if the condition “lower limit < meas-
ured value < upper limit” is true, the
judgment result is PASS, and the test ends. PASS LED lights in
green.
Measured value
remains displayed for
the length of time speci-
fied by Pass Hold. Sounds for
50 ms.
1
1 The length of time that the buzzer sounds when a PASS judgment occurs is fixed to 50 ms. The
specified Pass Hold time has no effect.
L-FAIL If the condition “lower limit
≥
measured
value” is true, the judgment result is
LOWER, and the test is immediately
stopped.
FAIL LED (yellow) and
“LOWER” lights. Sounds
until STOP
is pressed.
U-FAIL If the condition “upper limit
≤
measured
value” is true, the judgment result is UPPER,
and the test is immediately stopped.
FAIL LED (yellow) and
“UPPER” lights.
Message Description
mA indicator blinking When the lower or upper limit is turned on, and the upper limit has been set
lower than the lower limit.
LIMIT indicator blinking When you try to set the test voltage higher than the set limit voltage.
kV and mA indicators
blinking simultaneously When the test voltage and the upper limit are set in the withstanding volt-
age test settings such that their product exceeds 550 VA.
A
kV
M
ȍ
mA
CONFIG
RISE TEST
RMS AVE MORE CAL RMT
MT
LIMIT
50Hz 60Hz
UPPER
LOWER W COMP
s
1
2
3
READY
TEST
PASS
FAIL
PROTECTION
READY LED turns off
LIMIT blinks
Example of LIMIT indicator
blinking