SMG2000E Digital Clamp-on Phase Meter

SMG2000E digital clamp-on phase meter is designed for the field measurement of voltage current and phase it is a measuring instrument with high precision low-cost portable hand-held and dual-channel input.
It can be easily measured the phase between U-U I-I and U-I distinguished the phase sequence of inductive/ capacitive circuit and three-phase voltage detected the wiring group of transformer tested the secondary circuit and bus differential protection system read out the phase relationship between each group CT of differential protection check the meter wiring is correct or not and so on.

Product features:
(1) Using clip-on current transformer to transform input current being measured thus measurement without disconnecting the measured line.
(2) When measuring the phase between U1 - U2 because the two input circuit is completely insulated so it completely avoids the short-circuit caused by possible false wiring which resulting in the burning of the measuring instrument.
(3) The display adopts a high contrast LCD display the font is up to 25mm the screen angle can be freely converted about 70 degrees to get the best visual effects.
(4) Instrument shell is made of engineering insulating material comes with rubber and anti-vibration protective sleeve safe and reliable.

Rated Operating conditions

(1) Temperature (0~40)℃
(2) Humidity: (20~80)% RH
(3) Wave forms of measured signal: sine wave β=0.05
(4) Frequency of measured signal: (50±0.5)Hz
(5) Position of Measured current carrying conductor in the nipper jaw: optional.
(6) Amplitude range of measured signal when measuring phase
    Phase U1-U2: 30V~500V
    Phase I1-I2: 10mA~10.00A
    Phase U1-I2 or I1-U2: 10V~500V 10mA~10.00A
(7) External reference frequency electromagnetic interference: should be avoided

3.1 Intrinsic Error
3.1.1 Reference Operating Conditions
(1) Temperature: (23±5) ℃
(2) Humidity: (45~75) % RH
(3) Wave forms of measured signal: sine wave β=0.02
(4) Frequency of measured signal: (50±0.2) Hz
(5) Position of Measured current carrying conductor in the nipper jaw: Optional position
(6) Amplitude range of measured signal when measuring phase: 100~220V 0.5A~1.5A
(7) External reference frequency electromagnetic interference: Should be avoided
3.2 The limits of intrinsic error
(1) AC Voltage (shown as table 1)

Table 1 Error of AC Voltage
Measure range	Resolution	Intrinsic limits of error
20V	0.01V	± (0.3% reading + 0.2% range)
200V	0.1V	± (0.3% reading + 0.2% range)
500V	1V	± (0.3% reading + 0.2% range)

Input impedance: all the measure range is 2MΩ;
When measuring phase the input impedance of voltage terminal > 500KΩ.
(2) AC current (shown as table 2)