Residual Voltage Tester
1. Introduction
The residual voltage tester can meet the test requirements of IEC60601-1:1988 clause 15 and IEC60335-1:2016 clause 22.5. The equipment has a high enough test impedance, it uses the method of simulating the disconnection of the plug to disconnect the appliance from the supply mains at the instant of voltage peak. It is used for the residual voltage test of electrical appliance like medical equipment and household appliances.
2. Working principle
Supply the appliance at rated voltage, any switch is then placed in the off position, and the appliance is disconnected from the supply mains at the instant of voltage peak. 1s after disconnection, measure the voltage between the pins of the plug with an instrument that does not appreciably affect the value to be measured. The voltage shall not exceed 34V as per IEC60335-1 and 60V as per IEC60601-1.
3. Specification
| Output voltage | AC 0~242V |
| Test voltage | 5-100V |
| Test time | 1-99s |
| Output power | ≤2KVA |
| Power supply time | 1~99s (The equipment automatically judges that it is disconnected at the voltage peak for testing) |
| Test voltage | 10~199.9V( resolution: 0.1V, accuracy: ±(reading*1%+1V)) |
| Test time | Test after disconnecting for 1 second |
| Number of tests | 1~99 times |
| Test impedance | 200MΩ |
| Alarm range | Settable (normally 34V or 60V) |
| Judgement | Sound and light alarm, and cut off the voltage at the same time |
| Working power | 220V/50Hz |
