Programmable Insulation Resistance Testing up to 1000 V DC
The KIKUSUI TOS7200 is a dedicated insulation resistance tester designed for evaluating the insulation performance of electrical and electronic components and equipment.
Test voltage can be programmed from −25 V to −1000 V DC in 1 V steps, while insulation resistance can be measured from 0.01 MΩ to 5000 MΩ within the applicable test-voltage and measurement-current conditions. The tester combines resistance measurement with automatic PASS, UPPER FAIL, and LOWER FAIL judgment for repeatable quality and safety testing.
−25 V to −1000 V DC
Programmable insulation test voltage with 1 V resolution
0.01 MΩ to 5000 MΩ
Wide insulation resistance measurement range
Window Comparator
Automatic PASS / UPPER FAIL / LOWER FAIL judgment
10 Test Conditions
Panel memory for repeatable test setups
Programmable test and wait timers, forced discharge after testing, SIGNAL I/O, remote start/stop connections, analog resistance monitoring, and standard RS232C communication make the TOS7200 suitable for both benchtop evaluation and integration into automated inspection systems.
25 V to 1000 V Programmable DC Test Voltage
Negative-polarity DC test voltage can be programmed from −25 V to −1000 V in 1 V steps, with a setting accuracy of ±(1.5% of setting + 2 V).
0.01 MΩ to 5000 MΩ Resistance Measurement
Measures insulation resistance over a broad range, with measurement accuracy specified according to the actual measurement current.
Window Comparator Pass/Fail Judgment
Programmable upper and lower resistance limits provide automatic PASS, UPPER FAIL, and LOWER FAIL judgment with corresponding display, buzzer, and SIGNAL I/O outputs.
Programmable Test and Wait Timers
Test duration can be set from 0.5 s to 999 s or disabled, while a 0.3 s to 10 s judgment wait time allows measurements to stabilize before lower-limit evaluation.
10-Condition Panel Memory
Up to ten test-condition sets can be stored and recalled, including through external control for repeated inspection procedures.
RS232C and SIGNAL I/O for Automation
A standard RS232C interface and rear-panel 25-pin SIGNAL I/O provide remote test control, memory selection, and PASS/FAIL/status signaling for automated inspection systems.
Insulation resistance testing of electrical and electronic components
Insulation verification of assembled electrical and electronic equipment
Production-line insulation resistance inspection
Automated PASS / FAIL quality-control testing
Repetitive safety-related insulation testing using stored test conditions
Automated test systems using RS232C and SIGNAL I/O
TOS7200 Specifications
| Test Function | Insulation Resistance Test |
|---|---|
| Output Voltage Range | −25 V to −1000 V DC |
| Output Voltage Resolution | 1 V |
| Output Voltage Setting Accuracy | ±(1.5% of setting + 2 V) |
| Maximum Rated Load | 1 W at −1000 V DC / 1 mA |
| Maximum Rated Current | 1 mA |
| Resistance Measurement Range | 0.01 MΩ to 5000 MΩ |
| Voltmeter Measurement Range | 0 V to −1200 V |
| Voltmeter Resolution | 1 V |
| Voltmeter Accuracy | ±(1% of reading + 1 V) |
| Comparator Limits | UPPER and LOWER: 0.01 MΩ to 5000 MΩ, subject to maximum rated current |
| Test Time | 0.5 s to 999 s, or Timer Off |
| Wait Time | 0.3 s to 10 s; TEST TIME > WAIT TIME |
| Timer Accuracy | ±(100 ppm + 20 ms) |
| Panel Memory | Up to 10 test-condition sets |
| Standard Interface | RS232C |
| External Control | SIGNAL I/O and remote-control connector |
| Dimensions | 215 W × 66 H × 230 D mm |
| Maximum Dimensions | 215 W × 85 H × 260 D mm |
| Weight | Approx. 2 kg |
Test Voltage & Resistance Measurement Range
| Test Voltage | Applicable Resistance Measurement Range |
|---|---|
| 25 V | 0.03 MΩ to 250 MΩ |
| 50 V | 0.05 MΩ to 500 MΩ |
| 100 V | 0.10 MΩ to 1000 MΩ |
| 125 V | 0.13 MΩ to 1250 MΩ |
| 250 V | 0.25 MΩ to 2500 MΩ |
| 500 V | 0.50 MΩ to 5000 MΩ |
| 1000 V | 1.00 MΩ to 5000 MΩ |
Resistance Measurement Accuracy
| 100 nA < i ≤ 200 nA | ±10% of reading |
|---|---|
| 200 nA < i ≤ 1 μA | ±5% of reading |
| 1 μA < i ≤ 1 mA | ±2% of reading |
Measurement-current conditions and environmental requirements specified by KIKUSUI apply.
