Kikusui TOS5200, Руководство пользователя, Страница: 65 / 82

TOS5200
65
Specifications
8
S
p
ecif
ica
tions
TOS5200
Judgment
feature Judgment method and
judgment operation
• If PASS HOLD is enabled, the PASS signal is generated continuously until the TOS5200
receives a STOP signal.
• The UPPER FAIL and LOWER FAIL signals are generated continuously until the TOS5200
receives a STOP signal.
• The FAIL and PASS buzzer volume levels can be changed.
• For PASS judgments, the length of time that the buzzer sounds for is fixed to 0.2 seconds.
Even if PASS HOLD is enabled, the buzzer turns off after 0.2 seconds.
Upper limit setting 0.01 mA to 110 mA
Lower limit setting 0.01 mA to 110 mA/ OFF
Judgment accuracy
4 1.00 mA
≤
i: ± (1.5 % of set), i < 1.00 mA: ± (1.5 % of set + 30 µA)
Current detection method Calculates the current’s true rms value or mean-value value and compares this value with
the reference value
Calibration Calibrated with the rms of a sine wave using a pure resistive load
Time Voltage rise time 0.1 s to 10.0 s
Resolution 0.1 s
Voltage fall time 0.1 s/ OFF (only enabled when a PASS judgment occurs)
Test time 0.1 s to 999 s, can be turned off (TIMER OFF)
Resolution 0.1 s to 99.9 s: 0.1 s. 100 s to 999 s: 1 s.
Accuracy ± (100 ppm + 20 ms)
1 Regarding the output time limits:
Taking size, weight, and cost into consideration, the heat dissipation capability of the voltage generator that is used for withstanding
voltage tests has been designed to be one half that of the rated output. Use the TOS5200 within the following limits. If you use the
product in a manner that exceeds these limits, the output section may overheat, and the internal protection circuits may be activat-
ed. If this happens, stop testing, and wait until the TOS5200 returns to its normal temperature.
2 Regarding the test voltage waveform:
Waveform distortions may occur if an DUT whose capacitance is dependent on voltage (for example, an DUT that consists of ce-
ramic capacitors) is connected as the load. However, if the test voltage is 1.5 kV, the effect of a capacitance of 1000 pF or less can
be ignored.
Because the product’s high-voltage power supply uses the PWM switching method, if the test voltage is 500 V or less, the switching
and spike noise proportions are large. The lower the test voltage, the greater the waveform is distorted.
3 In either case, true rms or mean-value, a response time of at least 50 ms is required to meet the measurement accuracy.
4 Regarding ammeter and judgment accuracy:
During withstanding voltage tests, current also flows in the stray capacitance of items such as the measurement leads and jigs.
This current that flows in the stray capacitances is added to the current that flows in the DUT, and the sum of these currents is
measured. Especially if you want to perform judgments with high sensitivity and accuracy, it is necessary to consider methods to
limit the current that flows in these stray capacitances, such as by adding upper and lower limits.
When the humidity is 70 % or higher, add 50 µA.
Judgment Judgment method Display Buzzer
SIGNAL I/
O
UPPER
FAIL
If a current that is greater than or equal to
the upper limit is detected, the output is
turned off, and an UPPER FAIL judgment
occurs.
FAIL LED and
“UPPER”
lights.
ON
Generates
a U-FAIL
signal
LOWER
FAIL
If a current that is less than or equal to the
lower limit is detected, the output is
turned off, and a LOWER FAIL judgment
occurs. This judgment is not performed
during voltage rise time (Rise Time) of all
tests and during the voltage fall time (Fall
Time) of withstanding voltage tests. FAIL LED and
“LOWER”
lights.
ON
Generates
an L-FAIL
signal
PASS
If the specified time elapses without any
problems, the output is turned off, and a
PASS judgment occurs.
PASS LED
lights.
ON
Generates
a PASS
signal
(Output time = voltage rise time + test time + voltage fall time)
Ambient temperature Upper limit Pause time Output time
t
≤
40 °C 50 mA < i
≤
110 mA Greater than or equal to the output time 30 min. max.
i
≤
50 mA Not necessary Continuous output possible
Output voltage 1 kV 2 kV 5 kV
When using 350 mm long test leads that are suspended in air (TYP) 2 µA
4
µA
10
µA
When using the accessory, high-voltage test lead TL31-TOS (TYP) 16
µA
32
µA
80
µA