1. Latest features:
Using 32-bit high speed 120MHz DPS of TI, and high performance 16-bit AD with 6 channels. The digital multiplier units with multiple functions and wide range of measurement was successfully developed by means of floating point computations.Therefore, the calculating accuracy can be guaranteed.
The various wiring methods can be simulated and obtain their corresponding results in office by the calibrator without connecting voltage or current signals.This function will be used as training materials and tools for training line inspection skills. Enable to greatly improve the inspection skills for on-site working staffs.
The 5A and 0.5A current signal will be generated and output to 5A and 100A clamp, in order to measure errors of the clamp. It solved error variation problem of 5A and 100A clamp after long time use, enabling the operator to understand the closure status of the clamp and remind staffs to clear the clamp jaw in time.
Up to 500 times current measurement range to ensure the measurement index. Up to 10000 times current display range. The minimum starting current is 1mA. Wiring can be identified even in No-load condition.
To calibrate energy meter without electronic energy pulse output. Or it can be considered as the index of energy saving test.
Comprehensive inspection for the faults of on-site measuring system, checking the composite error of high voltage and low voltage.
2. Other features
Voltage Range | 30V-480V | 5A Clamp | Active power energy,power | ±0.5% | |||
Voltage Error | ±0.2% |
| Reactive power energy, power | ±0.5% | |||
Clamp (1times over-load) | 5A,100A,500A,1000A |
| Current | ±0.5% | |||
Input Frequency Range | 45-55Hz |
| Self-checking Current | 5A 0.5A | |||
Frequency Measurement Error | ±0.01Hz |
| Self-checking Error | ±0.1% | |||
Phase Measurement Range | -180°~ +180° | Big Current Clamp | Active power energy, power | ±0.5% | |||
Maximum Phase Error | ±0.1° |
| Reactive power energy, power | ±0.5% | |||
Harmonic Measurement | ±0.1% |
| Current | ±0.5% | |||
Harmonic Measurement Range | 2-51times | Others | Ratio Measurement | ±0.5% | |||
Current Terminal |
Active power energy |
±0.1% |
|
Voltage Influence |
< ±0.01% | ||
| Reactive power energy | ±0.5% |
| Frequency Influence | < ±0.01% | ||
Low Frequency Pulse Constant | 5A | 3600P/kWh |
| Temperature Influence | < ±0.005%/℃ | ||
| Others | 3600*(5/Ie) P/kWh |
| 24hours change error | < ±0.04% | ||
|
| Harmonic Influence | < ±0.01% | ||||
| Note: Ie is rated current | Standby time after start-up | <5 minutes | ||||
Power Supply | AC 45V-480V | Environmental temperature | -25℃- +45℃ | ||||
Power Consumption | < 10W | Relative humidity | 40%-95% | ||||
Dimension | 214mm * 158mm *71mm | Continuous working time of the battery | >8hours | ||||
Weight | < 1.2 kg | Battery charge voltage | DC 12V |