| 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 *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) | ||||||
| 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.
