SMG2000E digital dual-phase VA meter is designed for field measurement of voltage, current and phase for the design of a high accuracy, low cost, portable hand-held, dual-channel input measuring instruments. The table can be measured easily on the site U-U, I-I and U-I between the phase and distinguishing emotional, capacitive circuit of three-phase voltage phase sequence testing transformer wiring group, secondary circuit and bus differential protection test system, read the travel protection group the phase relationship between the CT, check the meter's wiring is correct or not. Using clamp conversion of current transformer input current to be measured, thus the measurement without having to disconnect the circuit to be measured. When measured between the U1-U2 phase, two input circuits perfectly insulated isolation, thus completely avoiding the possible misconnection caused by short circuit to be measured, that burnt measuring instruments. High contrast LCD display uses, extra characters, to obtain the best visual effect.
1. working principle
Using clamp conversion of current transformer input current to be measured, thus the measurement without having to disconnect the circuit to be measured. When measured between the U1-U2 phase, two input circuits perfectly insulated isolation, thus completely avoiding the possible misconnection caused by short circuit to be measured, that burnt measuring instruments.
2. the use of range
The table is in the power sector, factories and mines, Petro-chemical, metallurgical system secondary circuit check the ideal instrument. Particularly suitable for relay protection, metering, and transmission of electric power construction project.
3. product name
Phase meter, dual phase sheet, double phase volt-ampere meter, pincers phase table pincers phase volt-ampere meter, digital dual-phase sheet, double clamp digital phase meter, low voltage volt-ampere phase meter, hand-held double clamp digital phase meter, double clamp digital phase meter, double clamp digital phase meter

1, compact, easy to use
Portable structures;
10mA-10A within the current range, 3V-500V don't have to break the circuit when the voltage range measured phase and replacement limits;
High contrast LCD display uses, extra characters, for best visual effects;
Switching functions and reasonable layout, turn the switch to read the measured voltage, current and phase.
2, high resolution
Using the latest patent current clamp, current resolution up to 0.1mA; Voltage resolution 0.1V.
3, low power consumption
The phase meter micro-power design, and with battery voltage detection function.

1 Basic errors
1.1 reference work conditions
(A) ambient temperature: (23 ± 5) ℃
(B) ambient humidity: (45~ 75)% RH
(C) the measured signal waveform: sine wave, beta-=0.02
(D) the measured signal frequency: (50 ± 0.2) Hz
(E) the measured current-carrying wire in the pliers mouth position: any
(F) when measuring the phase measured signal amplitude range:
100~ 220V, 0.5A~ 1.5A
(G) external reference frequency electromagnetic interference should be avoided
1.2 Basic error limit
1.2.1 AC voltage is shown in table 1

Input impedance: the limits are 2M ω
Phase measurement, voltage input impedance ﹥ 500K
1.2.2 AC current see table 2

1.2.3 phase
U-U, U-I, and I-I are shown in table 3

2 errors
2.1 rated working conditions
(A) ambient temperature: (0~ 40) ¡æ
(B) ambient humidity: (20~ 80)% RH
(C) the measured signal waveform: sine wave, beta-=0.05
(D) the measured signal frequency: (50 ± 0.5) Hz
(E) the measured current-carrying wire in the pliers mouth position: any
(F) when measuring the phase measured signal amplitude range
When measuring the U1-U2 phase: 30V~ 500V
When measuring the I1-I2 phase: 10mA~ 10.00A
When measuring the U1-I2 or I1-U2 phase: 10V~ 500V, 10mA~ 10.00A
(G) external reference frequency electromagnetic interference should be avoided
2.2 operating error limit
2.1 under the rated operating conditions, the measured operating error limit does not exceed the corresponding basic error limit of twice.
3 security features
3.1 high pressure
Voltage between input and case, clamping current transformer iron core and grip and winding coils can withstand the 1000V/50Hz, between two voltage inputs can withstand the 500V/50Hz sine-wave AC voltage test lasted 1min. .
3.2 insulation resistance
Meters between the shell and, between two voltage inputs: ≥ 10M
4 other technical characteristics
4.1 display digits: 3 1/2
4.2 sample rate: 3 times/sec
4.3 power supply: single 9V laminated batteries, supply current is less than 5mA
4.4 dimensions
Case dimensions: 186x86x33
Clamp size: 140x40x19
Jaw dimensions: φ 7x8
4.5 weight
Table: 280g
Measuring pliers: 2x200g
Measuring pliers: 2x200g
4.6 storage conditions
Temperature:-10 ~ 50 ℃