KIKUSUI Electrical Safety Multi-analyzer TOS9300 Series

Withstanding Voltage Test

AC Output function

DC Output function

*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

*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

*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

*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

*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

*1 TOS9300 are not supported.

Measurement function

*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

*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

*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

*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

*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

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

Judgment feature

Timer function

*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.

Partial Discharge Test

Output function

*1 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 1.5kV, the effect of a capacitance of 1 000pF 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

*1.When the pulse interval is 200 μs or more *2.
Can be used to conduct tests based on the principles of IEC 60664-1 Edition 3.0, including the test circuit (for earthed test specimen) and the test voltages. However, does not fully meet the accuracy requirements. *3.When Band Pass Filter is set to 160 kHz.

Judgment feature

Timer function

*1 This setting is used only when PASS judgment occurs.

Other specifications

*1. Monitor signal output is isolated from the chassis (earth). *2. During PD tests, the monitor signal common is connected to the chassis (ground). The Qpd waveforms are the ones output from the peak detection circuit and are reset after each cycle. The Ipd waveforms are the discharged ones after passing through the filter in the measurement section of the TOS93 series. Therefore, the scale varies depending on the frequency characteristics of the actual discharge waveform. *3. The lpd waveforms are the ones that can be obtained after the actual discharge waveforms have passed theTOS9301PD measurement filter. Therefore, the scale varies according to the frequency response of the discharge waveform.

Leakage Current Test

*1 Current measurements may not be stable due to the effects of the power supply line waveform or the wiring environment between the product and the EUT.

Measurement circuit network

*1 Current measurements may not be stable due to the effects of the power supply line waveform or the wiring environment between the product and the EUT.

Measurement section

*1 Voltmeter band expansion is possible when network I is selected. *2 0.1 Hz ≤ f < 15 Hz is for when voltmeter band expansion (VoltMeter BandWidth) is set to Expand. Requires at least 120 second of test time. *3 A value converted to current for measurements using Network A, B, C or H with voltmeter accuracy of this product as the reference. If a network other than A, B, C or H is used, calculate as follows:

For Network D, E, or I, the ■ part of ±(□% of reading + ■A) is half the value.

For F, the ■ part is one-third the value.

For G, the ■ part is one-fourth the value.

For PCC-1 or PCC-2, the ■ part is 3.3 times the value.

Judgment feature

Timer function

Other specifications

*1 If voltage is measured with the A and B terminals open, measurements will be easily affected by induced voltage.

Interface (Common)

Other Functions (Common)

General Specifications (Common)

*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.