1. Overview
The DO3020D single-phase energy meter field calibrator can be used for on-site accuracy calibration of various single-phase energy meters, as well as for measuring power frequency AC parameters.
2. Product Features
2.1. The design combines a clamp type current transformer with a standard energy meter, featuring a touch sensitive color LCD display and a rich and smooth human-machine interface;
2.2. Extremely wide voltage and current measurement range, voltage: 5-2220V, current: 0.01-100A;
2.3. One screen display of measurement parameters, easy to operate;
2.4. The instrument has automatic compensation and calibration functions for transformers, and can achieve a measurement accuracy of 0.2 level;
2.5.16 bit high-precision AD converter with 32-bit ARM processor core;
2.6. Automatic recording of measurement data can save up to 200 sets of valid measurement verification data;
3. Purpose and Function
3.1 Automatic/manual calibration of induction single-phase energy meters;
3.2 Automatic/manual calibration of electronic single-phase energy meters;
3.3 Measure the effective value of power frequency voltage (5-220Vrms);
3.4 Measure the effective value of power frequency current (10mA~100Arms);
Measure the active power, voltage/current phase angle, frequency and other parameters under the above voltage/current conditions;
4. Technical performance indicators
4.1 Measurement range: Voltage: 5-20V (r.m.s)
Current: 5mA-100A (r.m.s)
Phase angle: 0-359.99 º
Frequency: 45-65Hz
4.2 Measurement accuracy: Voltage and current: better than 0.2%
Phase angle: better than 0.05 º
Frequency: better than 0.005 Hz
Active power: better than 0.5%
Active energy: better than 0.5%
4.3 Working/Storage Environment: Working Temperature/Humidity: -10 ℃ -+55 ℃/5% -85% RH
Storage temperature/humidity: -25 ℃ -+70 ℃/5% -95% RH
4.4 Dimensions: 215mm (length) x 60mm (width) x 30mm (thickness)
Current clamp opening/aperture: 20mm/φ 16mm
4.5 Weight: Host: 0.25kg
Accessories and portable bag: 0.3kg
4.6 Battery specifications: AA type lithium-ion rechargeable battery with a capacity of 750mAh