GF312D Three-phase kWh meter site verification
(Accuracy class 0.05/0.1)
Application
It is suitable for power measurement test center, the power company electricity management, electric energy measurement, technical supervision departments, industrial and mining enterprises, petroleum and chemical enterprises, electric energy measurement department.
Introduction
This instrument is developed based on computer company platform, adopts full function exchange measuring core 32-bit ARM processor, resolution 640 X480 TFT LCD monitor, horizontal double 16bit precision A/D converter, built-in 0.01 magnitude broad range current transformer, the product as high precision watt-hour meter site verification, can also check two pieces of pick up in the same line of the error of the meter.
Functions and features
1, measurement:
(1) AC parameters: U, I, P and Q, S, PF, phase angle, frequency etc;
(2) electrical energy cumulative: active power, reactive power, installed power;
(3) U, I phase Angle measurement;
(4) U, I harmonic measurement;
(5) instrument accuracy: 0.05%/ 0.1% / 0.2%.
2, calibration: checking various single, three-phase watt-hour meter, including: active/reactive watt-hour meter, inductive/electrical meter, but it can also check two pieces of pick up in the same line of electric energy meter;
3 analysis: through the U, I phase angle measurement results, analysis of the connection status, hint electric wiring error;
4, record: manual/automatic transcribing watt-hour meter data, read automatically watt-hour meter bar code, through the interface RS485 read watt-hour meter data;
5, testing the CT Turns Ratio and angular;
6, equipping with 5 A, 20 A, 100 A, 500 A, 5000 A current clamp;
7, exceed wide measurement range and high measuring accuracy: voltage 0.5-500 V (60 V, 120 V ,240 V , 480 V four measure range, 0.02%), current 2 mA-20 A (built-in CT direct measurement, 0.02%), 2 mA-5 A, 20 mA-20 A, 100 mA-100 A and 500 mA-500 A (external current clamp measuring 0.2 or 0.5 grade) and it can be equipped with 50-5000 A flexible coil (lokovski coil) current measurement, and the measurement of frequency range of 40-70 Hz, harmonic analysis: 0-127 times,
8, low power circuit design, high-energy lithium batteries, intelligent power management software to make instruments can work for more than 20 hours continuous time;
9, adopt new structure and appearance, beautiful and practical, small volume easy to carry easy to use; The rubber shock absorption coat, with strong vibration resistance for field use;
10 severy way of power supply, can AC 220 V power supply, also can use rechargeable battery power within the host;
11, built-in wireless transceiver can be equipped with a variety of wireless sensor (for example: three wireless photoelectric sampler, wireless measure current coil, wireless bar code scanner, wireless infrared interface etc.);
12, equipped with current clamp calibration accessories, the calibration of current clamp measurement error;
13, built-in GPS receiver, may to the electric energy meter calibration time;
14, built-in ebook, with perfect--help function machine interface, convenient operation and fluent;
15, equipped with PC data management software and user interface MIS system.
Technical Data
|
project
|
Measurement range
|
resolution
|
accuracy
|
Notes
|
|
voltage
|
0.5—600V
|
10mV
|
0.02%±10mV
|
|
|
current 1
|
2mA—20A
|
0.1mA
|
0.02%±0.1mA
|
Use internal CT (direct measurement)
|
|
current 2
|
2mA—5A
|
0.1mA
|
0.05%±0.1mA
|
Use 5 A current clamp
|
|
current 3
|
20mA—20A
|
0.5mA
|
0.1%±0.5mA
|
Use 20 A current clamp
|
|
current 4
|
100mA—100A
|
2mA
|
0.2%±2mA
|
Use 100 A current clamp
|
|
current 5
|
500mA—500A
|
10mA
|
0.2%±10mA
|
Use 500 A current clamp
|
|
current 6
|
50A—5000A
|
1A
|
0.5%±1A
|
Using 5 kA roche coil
|
|
Active power
|
0—±750000W
|
0．1W
|
0.05%±LSw
|
Four quadrant
|
|
Reactive power
|
0—±750000Var
|
0．1Var
|
0.1%±LSv
|
|
Power factor
|
0—±1.0
|
0．0005
|
0.1%±0.0005
|
|
|
Phase Angle
|
0—360º
|
0．005º
|
0.1%±0.005 º
|
|
|
Active power energy error
|
|
|
0.05%
|
|
|
Reactive power energy error
|
|
|
0.1%
|
|
|
frequency
|
40—70Hz
|
0．001Hz
|
0.05%±0.001Hz
|
|
|
volume
|
220mm×140mm×60mm
|
|
Host weight
|
1.5Kg
|
|
Continuous working time
|
Measurement/calibration: 16 h, save electricity: 30 h, state: 48 h
|
|
|
Use of the environment
|
Work:-20 ~ + 60 ℃ / 10 ~ 90% RHD,
storage:-40 ~ 70 ℃ / 5 ~ 95% RHD
|
