DF-200 Dual-clamp Digital Phase Meter

DF-200 Double Clamp Digital Phase Meter is special designed for voltage, current and phase tests, it is in high-precision, low p

Features & Functions

1. Withstand Voltage   Parts between voltage input terminal and meter shell, parts between the iron core of the clamp-current transformer and secondary windings can stand 1000V/50Hz. Parts between the two voltage input terminals can stand Sinusoidal AC Voltage 500V/50Hz for 1min when testing.2. Insulation Resistance   Between meter circuit and meter shell, between the two voltage input terminals:≥10MΩ.

III. Specifications

l  Intrinsic Error

1. Reference Operating Conditions(1) Temperature(23±5)°C(2) Moisture(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

2. Limits of Intrinsic Error   (1) AC Voltage(see Table 1)

Table 1 Error of AC   Voltage
Measure range	Resolution	Limits of intrinsic   error
20V	0.01V	±(1.2%RD+2)
200V	0.1V	±(1.0%RD+2)
500V	1V	±(1.2%RD+2)

Input Impedance:All the measure range is 2MΩ   (2) Alternating current(see Table 2)

Table 2 Error of   alternating current
Measure range	Resolution	Limits of intrinsic   error
200mA	0.1mA	±(1.0%RD+2)
2A	1mA
10A	10mA

(3) PhaseU-U,U-I,I-I(see Table 3)

Table 3 Error of Power-frequency   Phase
Range	Resolution	Limits of intrinsic   error
0~360°	1°	±3°

Impedance of input voltage loop when measuring phase of U1-U2:40KΩ

l  Operating Error

1. Rated Operating Conditions(1) Temperature (0~40)°C(2) Moisture (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 position.(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

2. Limits of Rated Operating ErrorUnder the conditions described in 1, the limits of the rated operating error will not exceed twice of the limits of intrinsic error.

l  Other Technical Features1. Display, three and half2. Sampling Rate, 3 times per second3. Power Supply, Single 9V laminated cell, current of power is less than 5mA4. DimensionMeter shell, 192x95x55mmNipper shell, 140×42×20mmNipper jaw, Φ7×9mm5. WeightMeter body, 280gMeasuring pliers, 2×200g6. Storage ConditionsTemperature, -10°C~50°C

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