Description
Clamp Phase Voltmeter,Double Clamp Digital Phase Meter
Product Description:
HESQ-427 Digital dual clamp phase voltmeter is a high precision, low cost, handheld, two channel input measuring instrument specially designed for voltage ,current and phase measurement. Shell of this meter uses engineering insulation material, equipped with rubber protection sleeve, safe and reliable.
Product Features:
1.Can withstand the voltage of 1000V / 60Hz between voltage input terminal and the shell, between iron core of clamp current transformer(current clamp) and clamp handle, between the secondary side winding coils. Between the two voltage input terminals can withstand the 500V/60Hz of the sine wave AC voltage, which lasted 1min.
2.Between insulation resistance, digital dual clamp phase volt ampere meter line and shell, between the two voltage input terminal: ≥10 MΩ.
Product Parameters:
| Error | Basic error of reference working condition | Rated working condition working error |
| Environment Temperature | (23±5)ºC | (0~40)ºC |
| Environment Humidity | (45~75)% RH | (20~80)% RH |
| Tested Signal Waveform | Sine wave, β=0.02 | Sine wave, β=0.05 |
| Tested Signal Frequency | (60±0.2Hz) | (60±0.5Hz) |
| Tested Signal Amplitude Range | 100~220V, 0.5~1.5A |
When measure U1-U2 phase:30V~500V When measure I1-I2 phase: 10mA~10.00A When measure U1-I2 or I1-U2 phase: 10V~500V, 10mA~10.00A |
| Error Limit | Basic error limit of AC voltage measurement | Basic error limit of AC current measurement |
| Measurement Limit | 20V | 200mA |
| 200V | 2A | |
| 500V | 10A | |
| Resolution | 0.01V | 0.1mA |
| 0.1V | 1mA | |
| 1V | 10mA | |
| Basic Error Limit | ±(1.0%RD+2) | ±(1.0%RD=2) |
| Input Impedance | Each measurement limit is 2MΩ | |
