Hipot Tester with Insulation Resistance and Ground Bond Test

TOS9303

TOS9303

750,000 (税込:825,000

  • The TOS9300 series is a high performance electrical safety analyzer that complies to a wide range of universal standards. Hipot, Insulation Resistance, Ground Bond, Leakage Current (touch current and protective conductor current) and partial discharge can all be tested. A total of 6 models are available for standard compliance tests in a wide variety of applications including R&D, quality assurance manufacturing lines and laboratory tests.

This product generates high voltage! The use of this product requires knowledge of electricity.Improper handling or operation of this product can be very dangerous, so be sure to read the instruction manual carefully and use this product properly.


LAN LXI LAN LXI UKCA
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SKU: TOS9303

Specifications

Withstanding Voltage Test

AC Output function

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AC output section TOS9300 TOS9301 TOS9301PD TOS9302 TOS9303 TOS9303LC
AC output section Output range   0.050 kV to 5.000 kV
Resolution 1 V
Setting accuracy ±(1.2 % of setting + 0.02 kV) (at no load)
Max. rated load *1 500 VA(5 kV / 100 mA)
Max. rated current 100 mA (when the output voltage is 0.2 kV or higher)
Transformer rating 500 VA
Output voltage waveform *2   Sine
Distortion 2 % or less. (when the output voltage is 0.5 kV or higher and no load or a pure resistive load is connected)
Crest factor √2 ± 3 % (0.8 kV or higher)
Frequency   50 Hz / 60 Hz
Accuracy ±0.1 %
Voltage regulation ±3 % or less (when changing from maximum rated load to no load)
Short-circuit current 200 mA or more (output voltage 0.5 kV or higher)
Output method PWM switching
Start voltage   The voltage at the start of the test can be set.
Setting range 1 % to 99 % of the test voltage
Resolution 1%
Output voltage monitor function If the output voltage exceeds ±(10 % of setting + 0.05 kV), the output is turned off, and the protection function is activated.

DC Output function

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AC output section TOS9301 TOS9301PD TOS9303 TOS9303LC
DC output section Output range   0.050 kV to 7.200 kV
Resolution 1 V
Setting accuracy ±(1.2 % of setting + 0.02 kV)
Max. rated load *1 100 W (5 kV/20 mA, 7.2 kV/13.9 mA)
Max. rated current 20 mA
Ripple 7.2 kV no load 20 Vp-p (TYP)
Max. rated load 50 Vp-p (TYP)
Voltage regulation 1 % or less (when changing from maximum rated load to no load)
Short-circuit current 100 mA (TYP) (200 mA peak)
Discharge function Forced discharge after test completion (discharge resistance: 125 kΩ)
Start voltage   The voltage at the start of the test can be set.
Setting range 1 % to 99 % of the test voltage
Resolution 1%
Output voltage monitor function If the output voltage exceeds ±(10 % of setting + 0.05 kV), the output is turned off, and the protection function is activated.

*1 When tests are performed consecutively, output time limit and rest time may become necessary depending on the upper limit setting *2 If an AC voltage is applied to a capacitive load, the output voltage may rise higher than at no load depending on the load capacitance. Further, waveform distortions may occur if an EUT whose capacitance is dependent on voltage (for example, an EUT that consists of ceramic capacitors) is connected as the load. However, if the test voltage is 1.5 kV, the effect of a capacitance of 1 000 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.


Measurement function

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AC output section TOS9300 TOS9301 TOS9301PD TOS9302 TOS9303 TOS9303LC
Voltmeter Measurement range 0 kV to 7.5 kV AC/DC
Resolution 0.1 V
Accuracy ±(1.2 % of reading + 0.005 kV)
Response Can be switched between true rms and mean-value response rms conversion.
Peak-value response in a separate system (the peak-value response is for measuring the dielectric breakdown voltage while rising)
Hold function The voltage measurement after a test is finished is held while the pass/fail judgment is displayed.
Ammeter *1 *2 Measurement range AC: 0.00 mA to 110 mA, DC: 0.00 mA to 22 mA (Current including the active component and reactive component)
Accuracy ±(1 % of reading + 2 μA) (active component)
Response Can be switched between true rms and mean-value response rms conversion.
Hold function The current measurement after a test is finished is held while the pass judgment is displayed.
Offset cancel function Cancels up to 10 mA of the current flowing through the insulation resistance and stray capacitance components across output cables and the like (resistance component only for DC tests). OFF function available.
Calibration Active component: Calibrated with the rms of a sine wave using a pure resistive load. Reactive component: Not calibrated.

*1 During AC voltage tests, current also flows in the stray capacitance of items such as the test leads and tools. For details on stray capacitance, see “Stray Capacitance of AC Withstanding Voltage Tests” *2 When the temperature and humidity are high, erroneous current from the product’s internal and external high-voltage wiring sections to ground increases. When the humidity exceeds 70 %, an erroneous current of about 50 μA may be generated.


Judgment feature

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Item TOS9300 TOS9301 TOS9301PD TOS9302 TOS9303 TOS9303LC
Current judgment operation The output is shut off when a judgment is made. Buzzer volume level can be set in the range of 0 (OFF) to 10 for pass and fail separately. In an auto test, the buzzer is valid only for the judgment that takes place at the end of the program.
UPPER FAIL Judgment method UPPER FAIL results when a current greater than or equal to the Upper limit is detected. For DCW, judgment is not made during the judgment delay (Judge Delay).
Display “U-FAIL” is displayed.
Buzzer On
SIGNAL I/O The Upper-FAIL signal is generated continuously until a STOP signal is received.
Lower FAIL Judgment method LOWER FAIL results when a current less than or equal to the Lower limit is detected. Judgment is not made during Voltage rise time or Voltage fall time of an ACW test.
Display “L-FAIL” is displayed.
Buzzer On
SIGNAL I/O The Lower-FAIL signal is generated continuously until a STOP signal is received.
PASS Judgment method PASS judgment is made if U-FAIL or L-FAIL has not occurred when the test time elapses.
Display “PASS” is displayed.
Buzzer On (fixed to 50 ms)
SIGNAL I/O The PASS signal is generated for the length of time specified by the Pass Hold set-ting. If Pass Hold is set to Infinity, the PASS signal is generated continuously until a STOP signal is received.
Voltage rise rate judgment operation Monitors the voltage rise rate during Voltage rise time. This is valid when Auto setting of the judgment delay (Delay Auto) is set to on and the output voltage is 200 V or more. The output is shut off when a judgment is made. Buzzer volume level can be set in the range of 0 (OFF) to 10 for pass and fail separately.
dV/dt FAIL Judgment method When the voltage rise rate (dV/dt) is less than approx. 1 V/s.
Display “ Upper-FAIL(dv/dt)” is displayed.
Buzzer On
SIGNAL I/O The U-FAIL signal is generated continuously until a STOP signal is received.
Upper limit setting range AC: 0.01 mA to 110.00 mA, DC: 0.01 mA to 21.00 mA
Lower limit setting range AC: 0.00 mA to 109.99 mA, DC: 0.00 mA to 20.99 mA, OFF. Setting 0.00 is equivalent to OFF.
Judgment accuracy *1 *2 ±(1 % of setting + 5 μA)
Current detection method Compares to the reference value using the following method. Calculate true rms values, convert mean-value responses to rms values
Response speed (filter) switching Switches the current detection response speed (sensitivity) used in UPPER FAIL judgment between five levels in ACW and DCW tests.

*1 During AC voltage tests, current also flows in the stray capacitance of items such as the test leads and tools. For details on stray capacitance, see “Stray Capacitance of AC Withstanding Voltage Tests” *2 When the temperature and humidity are high, erroneous current from the product’s internal and external high-voltage wiring sections to ground increases. When the humidity exceeds 70 %, an erroneous current of about 50 μA may be generated.


Timer function

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AC output section TOS9300 TOS9301 TOS9301PD TOS9302 TOS9303 TOS9303LC
Current rise time settings range 0.1 s to 200.0 s
Current fall time setting time *1 0.1 s to 200.0 s, OFF
Test time setting range 0.1 s to 1000.0 s, OFF
Judgment delay (Judge Delay) setting range *2 0.1 s to 100.0 s, AUTO *3 (DCW only)
Accuracy ±(100 ppm of setting + 20 ms) (excluding the fall time)

*1 This setting is used only when a PASS judgment occurs in ACW and DCW tests. During a DCW test, the voltage may not drop all the way within the set time because of the electrostatic capacity inside the product and the EUT. *2 Less than the sum of the rise time and fall time. *3 If Delay Auto is set to on, LOWER judgment is not made until the charge time ends.


Other specifications

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AC output section TOS9300 TOS9301 TOS9301PD TOS9302 TOS9303 TOS9303LC
Analog monitor *1   Outputs a voltage signal according to the current waveform or voltage waveform
I Current waveform: Scale 50 mA/1 V
V Voltage waveform: Scale 1 kV/1 V
Grounding mode (GND)   Can be switched between Low and Guard.
Low GND is connected to the low terminal. Measures the current flowing across the low terminal and chassis (normal applications).
Guard *2 GND is connected to Guard. Measures only the current flowing through the low terminal (cur-rent flowing through the chassis is not measured) (high sensitivity, high accuracy measure-ment applications).

*1 Monitor signal output is isolated from the chassis (earth). If you connect an oscilloscope or an external device whose BNC shield is grounded, be sure to set the grounding mode (GND) to Guard. The value is not calibrated. *2 If there is a possibility that the EUT or tools and the like will be grounded or if you are uncertain, do not set GND to Guard. Doing so is extremely dangerous because the ammeter will be shorted and will not be able to measure current. For normal applications, set GND to Low.


Insulation Resistance Test

Output function

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Item TOS9300 TOS9301 TOS9301PD TOS9303 TOS9303LC
Negative polarity Output voltage range   -0.025 kV to -1 kV
Resolution 1 V
Setting accuracy ±(1.2 % of setting + 0.002 kV)
Max. rated load 1 W (-1 kV/1 mA)
Ripple 1 kV no load 2 Vp-p or less
Max. rated load 10 Vp-p or less
Short-circuit current 12 mA or less
Positive polarity *1 Output voltage range   +0.05 kV to +7.2 kV
Resolution 1 V
Setting accuracy ±(1.2 % of setting + 0.02 kV)
Max. rated load 7.2 W(7.2 kV/1 mA)
Ripple 1 kV no load 20 Vp-p or less
Max. rated load 50 Vp-p or less
Short-circuit current 100 mA (TYP) (200 mA peak)
Max. rated current 1 mA
Voltage regulation 1 % or less (when changing from maximum rated load to no load)
Discharge function Forced discharge after test completion (discharge resistance: 20 kΩ)
Output voltage monitor function If the output voltage exceeds ±(10 % of setting + 0.05 kV), the output is turned off, and the protection function is activated.

*1 TOS9300 are not supported.


Measurement function

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Item TOS9300 TOS9301 TOS9301PD TOS9303 TOS9303LC
Voltmeter Measurement range Negative polarity: 0 Vdc to -1200 Vdc, positive polarity: 0 Vdc to 7500 Vdc
Resolution 0.1 V
Accuracy Negative polarity: ±(1 % of reading + 1 V), positive polarity: ±(1.2 % of reading + 1 V)
Resistance meter Measurement range 0.001 MΩ to 100.0 GΩ (in the range of maximum rated current of 1 mA to 5 nA)
Accuracy *1 *2 (when GND is set to Guard) (i: measured current)(R: measurement resistance) 5 nA ≤ i ≤ 50 nA *3 500.000 MΩ ≤ R < 1.000 GΩ: ±(15 % of reading + 0.5 MΩ)
1.000 GΩ ≤ R < 10.000 GΩ: ±(15 % of reading + 5 MΩ)
10.000 GΩ ≤ R ≤ 100.000 GΩ: ±(20 % of reading + 200 MΩ)
50 nA < i ≤ 100 nA *3 200.000 MΩ ≤ R < 1.000 GΩ: ±(10 % of reading + 0.5 MΩ)
1.000 GΩ ≤ R < 10.000 GΩ: ±(10 % of reading + 5 MΩ)
10.000 GΩ ≤ R < 50.000 GΩ: ±(10 % of reading + 50 MΩ)
50.000 GΩ ≤ R ≤ 100.000 GΩ: ±(20 % of reading + 200 MΩ)
100 nA < i ≤ 200 nA *4 100.000 MΩ ≤ R < 1.000 GΩ: ±(7 % of reading + 0.5 MΩ)
1.000 GΩ ≤ R < 2.000 GΩ: ±(7 % of reading + 5 MΩ)
2.000 GΩ ≤ R < 10.000 GΩ: ±(7 % of reading + 10 MΩ)
10.000 GΩ ≤ R < 50.000 GΩ: ±(7 % of reading + 100 MΩ)
200 nA < i ≤ 1 μA *4 10.000 MΩ≤ R < 100.000 MΩ: ±(5 % of reading + 0.05 MΩ)
100.000 MΩ ≤ R < 1.000 GΩ: ±(5 % of reading + 0.5 MΩ)
1.000 GΩ ≤ R < 10.000 GΩ: ±(5 % of reading + 5 MΩ)
10.000 GΩ ≤ R < 25.000 GΩ: ±(5 % of reading + 50 MΩ)
1 μA < i ≤ 1 mA *4 0.001 MΩ ≤ R < 10.000 MΩ: ±(2 % of reading + 0.003 MΩ)
10.000 MΩ ≤ R < 100.000 MΩ: ±(2 % of reading + 0.03 MΩ)
100.000 MΩ ≤ R < 1.000 GΩ: ±(2 % of reading + 0.3 MΩ)
1.000 GΩ ≤ R < 5.000 GΩ: ±(2 % of reading + 3 MΩ)
Accuracy *5 (when GND is set to Low)(i: measured current)(R: measurement resistance) 5 nA ≤ i ≤ 50 nA *3 500.000 MΩ≤ R < 1.000 GΩ: ±(25 % of reading + 0.5 MΩ)
1.000 GΩ≤ R < 10.000 GΩ: ±(25 % of reading + 5 MΩ)
10.000 GΩ≤ R ≤ 100.000 GΩ: ±(30 % of reading + 200 MΩ)
50 nA < i ≤ 100 nA *3 200.000 MΩ≤ R < 1.000 GΩ: ±(20 % of reading + 0.5 MΩ)
1.000 GΩ≤ R < 10.000 GΩ: ±(20 % of reading + 5 MΩ)
10.000 GΩ≤ R < 50.000 GΩ: ±(20 % of reading + 50 MΩ)
50.000 GΩ≤ R ≤ 100.000 GΩ: ±(30 % of reading + 200 MΩ)
100 nA < i ≤ 200 nA *4 100.000 MΩ≤ R < 1.000 GΩ: ±(10 % of reading + 0.5 MΩ)
1.000 GΩ≤ R < 2.000 GΩ: ±(10 % of reading + 5 MΩ)
2.000 GΩ≤ R < 10.000 GΩ: ±(10 % of reading + 10 MΩ)
10.000 GΩ≤ R < 50.000 GΩ: ±(10 % of reading + 100 MΩ)
200 nA < i ≤ 1 μA *4 10.000 MΩ≤ R < 100.000 MΩ: ±(5 % of reading + 0.05 MΩ)
100.000 MΩ≤ R < 1.000 GΩ: ±(5 % of reading + 0.5 MΩ)
1.000 GΩ≤ R < 10.000 GΩ: ±(5 % of reading + 5 MΩ)
10.000 GΩ≤ R < 25.000 GΩ: ±(5 % of reading + 50 MΩ)
1 μA < i ≤ 1 mA *3 0.001 MΩ≤ R < 10.000 MΩ: ±(2 % of reading + 0.003 MΩ)
10.000 MΩ≤ R < 100.000 MΩ: ±(2 % of reading + 0.03 MΩ)
100.000 MΩ≤ R < 1.000 GΩ: ±(2 % of reading + 0.3 MΩ)
1.000 GΩ≤ R < 5.000 GΩ: ±(2 % of reading + 3 MΩ)
Hold function The resistance measurement after a test is finished is held while the pass judgment is displayed.
Offset cancel function Cancels up to 2000 GΩ of the unnecessary insulation resistance across output cables and the like. OFF function available.

*1 Humidity: 70 %rh or less (no condensation), when there is no interference caused by wobbly test leads or other problems. *2 If the grounding mode (GND) is set to low in a highly humid environment, leakage current to ground will be generated from the high-voltage wiring sections inside the product and the high-voltage wiring sections between the product and the EUT. This leakage current ranges from several nA to several tens of nA depending on the usage and wiring conditions of the optional TOS9320 high voltage scanner and greatly affects measurement accuracy. The effects of leakage current can be reduced by making measurements with the offset enabled. *3 Add 10 % to the accuracy when measuring 100 V or less. *4 Add 5 % to the accuracy when measuring 100 V or less. *5 When the measured current is limited to 100 nA or more (no condensation) when the humidity is 50 %rh or less, no external disturbance is present such as swinging test leads, and the offset is enabled.

 


Judgment feature

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Item TOS9300 TOS9301 TOS9301PD TOS9303 TOS9303LC
Behavior based on judgment The output is shut off when a judgment is made. Buzzer volume level can be set in the range of 0 (OFF) to 10 for pass and fail separately. In an auto test, the buzzer is valid only for the judgment that takes place at the end of the program.
UPPER FAIL Judgment method UPPER FAIL results when a resistance greater than or equal to the Upper limit is detected. Judgment is not made during or Voltage rise time.
Display “Upper-FAIL” is displayed.
Buzzer On
SIGNAL I/O The Upper-FAIL signal is generated continuously until a STOP signal is received.
Lower FAIL Judgment method LOWER FAIL results when a resistance less than or equal to the Lower limit is detected. Judgment is not made during the judgment delay (Judge Delay).
Display “L-FAIL” is displayed.
Buzzer On
SIGNAL I/O The Lower-FAIL signal is generated continuously until a STOP signal is received.
PASS Judgment method PASS judgment is made if U-FAIL or L-FAIL has not occurred when the test time elapses.
Display “PASS” is displayed.
Buzzer On (fixed to 50 ms)
SIGNAL I/O The PASS signal is generated for the length of time specified by the Pass Hold setting. If Pass Hold is set to Infinity, the PASS signal is generated continuously until a STOP signal is received.
Voltage rise rate judgment operation Monitors the voltage rise rate during Voltage rise time. This is valid when Auto setting of the judgment delay (Delay Auto) is set to on and the output voltage is 200 V or more. The output is shut off when a judgment is made. Buzzer volume level can be set in the range of 0 (OFF) to 10 for pass and fail separately.
dV/dt FAIL Judgment method When the voltage rise rate (dV/dt) is less than 1 V/s.
Display “ Lower-FAIL(dv/dt)” is displayed.
Buzzer On
SIGNAL I/O The L FAIL signals are generated continuously until a STOP signal is received.
Upper limit setting range 0.001 MΩ to 100.000 GΩ (in the range up to the maximum rated current), OFF
Lower limit setting range 0.000 MΩ to 99.999 GΩ (in the range up to the maximum rated current), OFF. Setting 0.000 is equivalent to OFF.
Accuracy *1 *2 *3 (when GND is set to Guard) (i: measured current) (R: measurement resistance) 5 nA ≤ i ≤ 50 nA *4 500.000 MΩ ≤ R < 1.000 GΩ : ±(15 % of setting + 0.51 MΩ)
1.000 GΩ ≤ R < 10.000 GΩ : ±(15 % of setting + 15 MΩ)
10.000 GΩ ≤ R ≤ 100.000 GΩ : ±(20 % of setting + 210 MΩ)
50 nA < i ≤ 100 nA *4 200.000 MΩ ≤ R < 1.000 GΩ : ±(10 % of setting + 0.51 MΩ)
1.000 GΩ ≤ R < 10.000 GΩ : ±(10 % of setting + 15 MΩ)
10.000 GΩ ≤ R < 50.000 GΩ : ±(10 % of setting + 60 MΩ)
50.000 GΩ ≤ R ≤ 100.000 GΩ : ±(20 % of setting + 210 MΩ)
100 nA < i ≤ 200 nA *5 100.000 MΩ ≤ R < 1.000 GΩ : ±(7 % of setting + 0.51 MΩ)
1.000 GΩ ≤ R < 2.000 GΩ : ±(7 % of setting + 15 MΩ)
2.000 GΩ ≤ R < 10.000 GΩ : ±(7 % of setting + 20 MΩ)
10.000 GΩ ≤ R < 50.000 GΩ : ±(7 % of setting + 110 MΩ)
200 nA < i ≤ 1 μA *5 10.000 MΩ ≤ R < 100.000 MΩ : ±(5 % of setting + 0.06 MΩ)
100.000 MΩ ≤ R < 1.000 GΩ : ±(5 % of setting + 0.51 MΩ)
1.000 GΩ ≤ R < 10.000 GΩ : ±(5 % of setting + 15 MΩ)
10.000 GΩ ≤ R < 25.000 GΩ : ±(5 % of setting + 60 MΩ)
1 μA < i ≤ 1 mA *5 0.001 MΩ ≤ R < 10.000 MΩ : ±(2 % of setting + 0.013 MΩ)
10.000 MΩ ≤ R < 100.000 MΩ : ±(2 % of setting + 0.04 MΩ)
100.000 MΩ ≤ R < 1.000 GΩ : ±(2 % of setting + 0.31 MΩ)
1.000 GΩ ≤ R < 5.000 GΩ : ±(2 % of setting + 13 MΩ)
Accuracy *6 (when GND is set to Low) (i: measured current) (R: measurement resistance) 5 nA ≤ i ≤ 50 nA *4 500.000 MΩ ≤ R < 1.000 GΩ : ±(25 % of setting + 0.51 MΩ)
1.000 GΩ ≤ R < 10.000 GΩ : ±(25 % of setting + 15 MΩ)
10.000 GΩ ≤ R ≤ 100.000 GΩ : ±(30 % of setting + 210 MΩ)
50 nA < i ≤ 100 nA *4 200.000 MΩ ≤ R < 1.000 GΩ : ±(20 % of setting + 0.51 MΩ)
1.000 GΩ ≤ R < 10.000 GΩ : ±(20 % of setting + 15 MΩ)
10.000 GΩ ≤ R < 50.000 GΩ : ±(20 % of setting + 60 MΩ)
50.000 GΩ ≤ R ≤ 100.000 GΩ : ±(30 % of setting + 210 MΩ)
100 nA < i ≤ 200 nA *5 100.000 MΩ ≤ R < 1.000 GΩ : ±(10 % of setting + 0.51 MΩ)
1.000 GΩ ≤ R < 2.000 GΩ : ±(10 % of setting + 15 MΩ)
2.000 GΩ ≤ R < 10.000 GΩ : ±(10 % of setting + 20 MΩ
10.000 GΩ ≤ R < 50.000 GΩ : ±(10 % of setting + 110 MΩ)
200 nA < i ≤ 1 μA *5 10.000 MΩ ≤ R < 100.000 MΩ : ±(5 % of setting + 0.06 MΩ)
100.000 MΩ ≤ R < 1.000 GΩ : ±(5 % of setting + 0.51 MΩ)
1.000 GΩ ≤ R < 10.000 GΩ : ±(5 % of setting + 15 MΩ)
10.000 GΩ ≤ R < 25.000 GΩ : ±(5 % of setting + 60 MΩ)
1 μA < i ≤ 1 mA *5 0.001 MΩ ≤ R < 10.000 MΩ : ±(2 % of setting + 0.013 MΩ)
10.000 MΩ ≤ R < 100.000 MΩ : ±(2 % of setting + 0.04 MΩ)
100.000 MΩ ≤ R < 1.000 GΩ : ±(2 % of setting + 0.31 MΩ)
1.000 GΩ ≤ R < 5.000 GΩ : ±(2 % of setting + 13 MΩ)

*1 Making judgments on 200 μA or less requires at least 3 seconds after the rise time ends. Making judgments when the low pass filter is set to on requires at least 10 seconds after the rise time ends. *2 Humidity: 70 %rh or less (no condensation), when there is no interference caused by wobbly test leads or other problems. *3 If the grounding mode (GND) is set to low in a highly humid environment, leakage current to ground will be generated from the high-voltage wiring sections inside the product and the high-voltage wiring sections between the product and the EUT. This leakage current ranges from several nA to several tens of nA depending on the usage and wiring conditions of the optional TOS9320 high voltage scanner and greatly affects measurement accuracy. The effects of leakage current can be reduced by making measurements with the offset enabled. *4 Add 10 % to the accuracy when measuring 100 V or less. *5 Add 5 % to the accuracy when measuring 100 V or less. *6 When the measured current is limited to 100 nA or more (no condensation) when the humidity is 50 %rh or less, no external disturbance is present such as swinging test leads, and the offset is enabled.


Timer function

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Item TOS9300 TOS9301 TOS9301PD TOS9303 TOS9303LC
Current rise time settings range 0.1 s to 200.0 s
Test time setting range 0.1 s to 1000.0 s, OFF
Judgment delay (Judge Delay) setting range *1 0.1 s to 100.0 s, AUTO *2
Accuracy *3 ±(100 ppm of setting + 20 ms)

*1 Less than the sum of the rise time and fall time. *2 If Delay Auto is set to on, UPPER judgment is not made until the charge time ends. *3 This excludes fall time.


Other specifications

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Item TOS9300 TOS9301 TOS9301PD TOS9303 TOS9303LC
Grounding mode (GND) Can be switched between Low and Guard.
Low GND is connected to the low terminal. Measures the current flowing across the low terminal and chassis (normal applications).
Guard *1 GND is connected to Guard. Measures only the current flowing through the low terminal (current flowing through the chassis is not measured) (high sensitivity, high accuracy measurement applications).
Filter function A low-pass filter can be inserted into the ammeter measurement circuit. *2

*1 If there is a possibility that the EUT or tools and the like will be grounded or if you are uncertain, do not set GND to Guard. Doing so is extremely dangerous because the ammeter will be shorted and will not be able to measure current. For normal applications, set GND to Low. *2 When the low pass filter is on, a judgment delay of at least 5 seconds and a test time are required.


Earth Continuity Test

Output function

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Item TOS9302 TOS9303 TOS9303LC
Current setting range *1 3.0 A to 42.0 A AC/DC
Resolution 0.1 A
Accuracy ±(1 % of setting + 0.4 A)
AC Maximum rated output *2 220 VA (at the output terminal)
Distortion 2 % or less (20 A or more, using a 0.1 Ω pure resistive load)
Frequency Select 50 Hz or 60 Hz. Sine
Accuracy ±200 ppm
Open terminal voltage 6 Vrms or less
Output method PWM switching
DC Maximum rated output 220 W (at the output terminal)
Ripple ±0.4 Ap-p or less (TYP)
Open terminal voltage 6.0 V or less

*1 No greater than the maximum rated output and resistance no greater than the output terminal voltage 5.4 V. *2 When tests are performed consecutively, output time limit and rest time may become necessary depending on the upper limit setting.


Measurement function

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Item TOS9302 TOS9303 TOS9303LC
Output ammeter Measurement range 0.0 A to 45.0 A AC/DC
Resolution 0.01 A
Accuracy ±(1 % of reading + 0.2 A)
Response AC: true rms value: DC: mean value
Hold function The current measurement after a test is finished is held while the pass or fail judgment is displayed.
Output voltmeter Measurement range AC: 0.00 V to 6.00 V, DC: 0.00 V to 8.50 V
Resolution 0.001 V
Offset cancel function Cancels up to 5 V (AC/DC) of the unnecessary voltage from measurements. OFF function available.
Accuracy ±(1 % of setting + 0.02 V)
Response AC: true rms value: DC: mean value
Hold function The voltage measurement after a test is finished is held while the pass or fail judgment is displayed.
Resistance meter Measurement range *1 1 mΩ to 600 mΩ
Resolution 1 mΩ
Offset cancel function Cancels up to 10 Ω of the unnecessary resistance from measurements. OFF function available.
Accuracy ±(2 % of reading + 3 mΩ)
Hold function The resistance measurement after a test is finished is held while the pass judgment is displayed.

*1 Calculated from the measured output voltage and measured output current.


Judgment feature

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Item TOS9302 TOS9303 TOS9303LC
Behavior based on judgment Judgment based on resistance or sensing voltage can be selected. The output is shut off when a judgment is made. Buzzer volume level can be set in the range of 0 (OFF) to 10 for pass and fail separately. In an auto test, the buzzer is valid only for the judgment that takes place at the end of the program.
UPPER FAIL Judgment method UPPER FAIL results when a resistance greater than or equal to the Upper limit is detected or when a sensing voltage is detected. Judgment is not made during a contact check.
Display “U-FAIL” is displayed.
Buzzer On
SIGNAL I/O The U-FAIL signal is generated continuously until a STOP signal is received.
LOWER FAIL Judgment method LOWER FAIL results when a resistance less than or equal to the lower limit (Lower) is detected or when a sensing voltage is detected.
Display “L-FAIL” is displayed.
Buzzer On
SIGNAL I/O The L-FAIL signal is generated continuously until a STOP signal is received.
PASS Judgment method PASS judgment is made if U-FAIL or L-FAIL has not occurred when the test time elapses.
Display “PASS” is displayed.
Buzzer On (fixed to 50 ms)
SIGNAL I/O The PASS signal is generated for the length of time specified by the Pass Hold setting. If Pass Hold is set to Infinity, the PASS signal is generated continuously until a STOP signal is received.
Resistance judgment Upper limit setting range 0.0001 Ω to 10.0000 Ω
Lower limit setting range 0.0000 Ω to 9.9999 Ω
Judgment accuracy ±(2 % of setting + 3 mΩ)
Voltage judgment Upper limit setting range 0.001 V to 5.000 V AC/DC
Lower limit setting range 0.000 V to 4.999 V AC/DC
Judgment accuracy ±(2 % of setting + 0.05 V)
Calibration Calibrated using a pure resistive load (with the rms of a sine wave for AC)
Contact check function Checks that current flows through the test leads and then starts the test. (OFF setting available)

Timer function

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Item TOS9302 TOS9303 TOS9303LC
Current rise time settings range 0.1 s to 200.0 s
Current fall time setting time *1 0.1 s to 200.0 s, OFF
Test time 0.1 s to 1000.0 s, OFF
Accuracy ±(100 ppm of setting + 20 ms) (excluding the fall time)

*1 This setting is used only when a PASS judgment occurs. During a DC test, the voltage may not drop all the way within the set time because of the electrostatic capacity inside the product and the EUT.



Interface (Common)

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Item TOS9300 TOS9301 TOS9301PD TOS9302 TOS9303 TOS9303LC
REMOTE 5-pin DIN connector. Connect the following option to remotely control the starting and stopping of tests.
  • Remote control box RC01-TOS, RC02-TOS
  • High voltage test probe HP01A-TOS, HP02A-TOS (when the test voltage is 4 kVac 5 kVdc or less)
SIGNAL I/O D-sub 37-pin connector. For the pin arrangement
Function Enable/disable interlock, recall setup memories, recall auto test programs, start/stop testing, monitor the test and voltage generation status, monitor the test status, monitor judgment results, monitor the step execution status of auto tests, monitor the activation status of protection functions
Input specifications   The input signals are all low-active control. The input terminal is pulled up to +12 V by a resistor. Leaving the input terminal open is equivalent to applying a high level signal.
High-level input voltage 11 V to 15 V
Low-level input voltage 0 V to 4 V
Low-level input current -5 mA max.
Input time width 5 ms min.
Output specifications Output method Open collector output (4.5 Vdc to 30 Vdc)
Output withstanding voltage 30 Vdc
Output saturation voltage Approx. 1.1 V (25 °C)
Maximum output current 400 mA(TOTAL)
STATUS OUT Output terminal of an option product.
Positive terminal (red) Outputs +24 V. Use Status Out of CONFIG settings to set the output conditions.
Negative terminal (black) +24 V circuit common.
SCANNER MINI DIN 8-pin connector. Terminal for the optional TOS9320 high voltage scanner. The maximum number of connections is 4 devices(16 channels).
USB (host) Standard type A socket, FAT32, 32 GB or less Complies with the USB 2.0 specifications; data rate: 12 Mbps (full speed)
Remote control All functions except turning on and off the power, key lock, and auto test can be remotely controlled.
RS232C Hardware D-sub 9-pin connector (EIA-232D compliant) Baud rate: 9600, 19200, 38400, 57600, 115200 bps Data length: 8 bits; stop bits: 1 bit; parity bit: none, flow control: none/CTS-RTS
Message terminator LF during reception, LF during transmission.
USB (device) Hardware Standard Type B connector. Complies with the USB 2.0 specifications; data rate: 480 Mbps (high speed)
Message terminator LF or EOM during reception, LF + EOM during transmission.
Device class Complies with the USBTMC-USB488 device class specifications.
LAN Hardware IEEE 802,3 100Base-TX/10Base-T Ethernet. Auto-MDIX compliant.IPv4, RJ-45 connector.
Compliant standards LXI 1.5 Core Specification 2011
Communication protocol VXI-11, HiSLIP, SCPI-RAW, SCPI-Telnet
Message terminator VXI-11, HiSLIP: LF or END during reception, LF + END during transmission. SCPI-RAW: LF during reception, LF during transmission.
Display 7-inch LCD

Other Functions (Common)

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Item TOS9300 TOS9301 TOS9301PD TOS9302 TOS9303 TOS9303LC
Auto test Auto execution by combining ACW, DCW, IR, and EC. For LC, a combination is possible only using TC, PCC, and Patient.
Test condition memory Setup Memory Up to 51 test conditions (ACW, DCW, IR, EC, PD, LC) can be saved.
Program memory Up to 100 program (ACW, DCW, IR, EC, PD) combinations, each containing 100 steps, can be saved.
Program memory (LC) Up to 100 program (TC, PCC, Patient) combinations, each containing 100 steps, can be saved.
Test result memory Records up to 1000 latest test result of independent tests and auto tests. These are cleared when the power is turned off. Test results can be saved in CSV format to a USB memory device.
System clock   For recording the calibration time and test times
Recordable time Up to year 2038
Calibration period setting Displays a warning at power-on when the specified period passes. Select whether to activate a protection function or only display a warning in the display area when a warning occurs.
Display of measured values   Maximum and minimum measurements can be displayed.
Normal Displays measurements during a test. Maximum and minimum values are not held.
Maximum and minimum value display Displays the maximum current measurement for withstanding voltage (ACW/DCW) tests, the minimum resistance measurement for insulation resistance (IR) tests, the resistance measurement or voltage measurement for earth continuity (EC) tests.
Test start method Double Action When you press STOP, “READY” is shown for 0.5 seconds. A test starts only when you press START within this period.
Momentary Tests are only executed while the START switch is held down.
Start Long A test starts only when the START switch is held down for at least 1 second.
PASS judgment display time (Pass Hold) Set the time to hold the pass judgment result display (0.05 s to 10.00 s) or hold it until STOP is pressed (Infinity).
STOP signal disable (Fail Mode) It is possible to set the instrument so that fail judgment results and PROTECTION mode cannot be released from a device connected to the SIGNAL I/O connector or REMOTE connector.
Key lock Lock the operation of the keys to prevent changing the settings or overwriting memory or programs by mistake.
Protection functions   If a protection function is activated during a test, the output is shut off and the test is stopped immediately.In an LC test, the power supply to the EUT is stopped, and the A and B terminals are opened.Conditions that cause a protection function to be activated are as follows.
INTERLOCK Interlock is activated.
POWER SUPPLY There is an error in the power supply section.
OUTPUT ERROR An output voltage outside of the following range is detected. ACW, DCW, IR test, PD test: ±(10 % of setting + 50 V) EC test: ±(10 % of setting + 2 A)
OVER LOAD An output power or output current outside of the following range is detected.
ACW: 550 VA, DCW: 110 W or 50 mA, IR (7200 V test): 110 W or 25 mA, IR (-1000 V test): 2 mA, EC: 240 VA, LC: AC LINE OUT current at approx. 15.7 A or power at 1600 VA.
OVER HEAT The internal temperature of the product is abnormally high.
OVER RATING During a withstanding voltage test, an output current is generated for a length of time that exceeds the output time limit.
CAL The preset calibration period is exceeded.
REMOTE The REMOTE connector is connected or disconnected.
SIGNAL I/O There is a change in the SIGNAL I/O connector’s ENABLE signal.
COMMUNICATION An internal communication error is occurring.
OVER RANGE A value exceeding the maximum value of the measurement range is detected.
MEASURE An error is detected in the LC test measurement check.
SHORT A relay operation error is detected in an LC test.
EARTH FAULT When the grounding mode (GND) is set to Guard, abnormal current flows from the high voltage output of this product to ground.
SCAN I/F While scanning, the interface cable is disconnected. Or, the channel-assigned scanner is not detected.

Other Functions (Common)

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Item TOS9300 TOS9301 TOS9301PD TOS9302 TOS9303 TOS9303LC
Backup battery life 3 years (at 25 °C or 77 °F)
Environment Installation location Indoors, 2000 m or less
Spec guaranteed range Temperature 5 °C to 35 °C (41 °F to 95 °F)(18 °C to 28 °C for partial discharge tests)
Humidity 20 %rh to 80 %rh (20 %rh to 70 %rh for partial discharge tests)(no condensation)
Operating range Temperature 0 °C to 40 °C (32 °F to 104 °F)
Humidity 20 %rh to 80 %rh (no condensation)
Storage range Temperature -20 °C to 70 °C (-4 °F to 158 °F)
Humidity 90 %rh or less (no condensation)
Power supply Nominal voltage range (allowable voltage range) 100 Vac to 120 V, 200 V to 240 V (90 Vac to 132 V, 170 V to 250 V)
Power consumption No load(READY state) 100 VA or less
Rated load 800 VA max.
Allowable frequency range 47 Hz to 63 Hz
Insulation resistance (between AC LINE and chassis) 30 MΩ or more (500 Vdc)
Withstanding voltage (between AC LINE and chassis) 1500 Vac, 1 minute, 20 mA or less
Earth continuity 25 Aac, 0.1 Ω or less
Weight Approx. 17 kg Approx. 18 kg Approx. 22 kg Approx. 20 kg Approx. 21 kg Approx. 22 kg
Accessories Power cord (1 pc., *length: 2.5 m : The attached power cord varies depending on the shipment destination.), High-voltage test lead: TL31-TOS (1 pair), SIGNAL I/O plug (1 set), High-voltage warning sticker (1 pc.), Setup Guide (1 copy), CD-ROM (1 disc), Safety Information (1 copy), Heavy object warning label (1 pc., *Not included with the TOS9300), Test leads for earth continuity test: TL13-TOS (1 pair., *TOS9302, TOS9303,TOS9303LC only), [TOS9303LC only: Spare fuse (1 pc.), Test leads for leakage current test (2 red, 1 black), Flat probe (1 sheet)]
Electromagnetic compatibility *1 *2 Complies with the requirements of the following directive and standards. EMC Directive 2014/30/EU EN 61326-1 (Class A *3), EN 55011 (Class A *3, Group 1 *4), EN 61000-3-2, EN 61000-3-3 Applicable under the following conditions The maximum length of all cabling and wiring connected to the product must be less than 2.5 m.Shielded cables are being used when using the SIGNAL I/O.The high-voltage test lead TL31-TOS is in use.Electrical discharges are applied only to the EUT.
Safety *1 Complies with the requirements of the following directive and standards. Low Voltage Directive 2014/35/EU *2, EN 61010-1 (Class I *5 , Pollution Degree 2 *6)

*1 Does not apply to specially ordered or modified products. *2 Only on models that have CE/UKCA marking on the panel. *3 This is a Class A instrument. This product is intended for use in an industrial environment. This product may cause interference if used in residential areas. Such use must be avoided unless the user takes special measures to reduce electromagnetic emissions to prevent interference to the reception of radio and television broadcasts. *4 This is a Group 1 instrument. This product does not generate and/or use intentionally radio-frequency energy, in the form of electromagnetic radiation, inductive and/or capacitive coupling, for the treatment of material or inspection/analysis purpose. *5 This is a Class I instrument. Be sure to ground this product’s protective conductor terminal. The safety of this product is guaranteed only when the product is properly grounded. *6 Pollution is addition of foreign matter (solid, liquid or gaseous) that may produce a reduction of dielectric strength or surface resistivity. Pollution Degree 2 assumes that only non- conductive pollution will occur except for an occasional temporary conductivity caused by condensation.


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    Operation Manuals

    TOS9300(TOS9301 / TOS9302 / TOS9303 / TOS9303LC)
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      TOS9300 Series - Characteristics Data
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