The digital double clamp phase volt-ampere is a high-precision, low-cost, handheld, dual-channel input measuring instrument designed for field measurement of voltage, current and phase. With this meter, you can easily measure the phase between UU, II and UI on site, distinguish the phase sequence of inductive, capacitive circuits and three-phase voltage, detect the wiring group of the transformer, and test the secondary circuit and bus differential protection system. , Read the phase relationship between the CTs of each group of differential protection, check whether the wiring of the watt-hour meter is correct or not, etc. Clamp-on current transformer conversion method is used to input the measured current, so there is no need to disconnect the measured circuit during measurement. When measuring the phase between U1-U2, the two input circuits are completely insulated and isolated, so it completely avoids the possible short circuit of the line under test caused by miswiring, which may burn the measuring instrument. The display adopts a high-contrast LCD screen with characters up to 25mm, and the screen angle can be freely switched about 70° to obtain the best visual effect.
Product nicknames: phase meter, double clamp phase meter, double clamp phase voltammeter, clamp phase meter, clamp phase voltammeter, digital double clamp phase meter, digital double clamp phase meter, low voltage volt-ampere phase detection meter, Handheld digital double-clamp phase volt-ampere meter, double-clamp digital phase meter, double-clamp digital phase meter, double-clamp volt-ampere phase meter, double-clamp volt-ampere phase meter, digital display double-clamp phase meter
RC2000 double clamp phase voltammeter technical parameters
Ambient temperature (23±5)℃
Environmental humidity (45～75)% RH
The measured signal waveform sine wave, β=0.02
Frequency of measured signal (50±0.2) Hz
The position of the measured current-carrying wire in the jaws arbitrary
When measuring the phase, the measured signal amplitude range is 100～220V, 0.5A～1.5A
Interference of external reference frequency electromagnetic field should be avoided
1. Withstand voltage
Between the voltage input terminal and the watch case, between the clamp current transformer (current clamp) core and the clamp handle and the secondary winding coil, it can withstand 1000V/50Hz, and between the two voltage input terminals can withstand 500V/50Hz sine waves. AC voltage test lasting 1min
2. Insulation resistance
Between the digital double clamp phase voltammeter circuit and the shell, between the two voltage input terminals: ≥10MΩ
1 Basic error
1.1 Reference working conditions
(A) Ambient temperature: (23±5)℃
(B) Environmental humidity: (45～75)% RH
(C) The measured signal waveform: sine wave, β=0.02
(D) Frequency of tested signal: (50±0.2) Hz
(E) The position of the tested current-carrying wire in the jaws: any
(F) Range of measured signal amplitude when measuring phase: 100～220V, 0.5A～1.5A
(G) External reference frequency electromagnetic field interference: should be avoided
1.2 Basic error limit
1.2.1 AC voltage see Table 1
Input impedance: each limit is 2MΩ
Voltage input loop impedance when measuring U1-U2 phase: 40KΩ
1.2.2 AC current see Table 2
1.2.3 Phase
U-U, U-I, I-I see Table 3
2.2 Rated operating error limit
Under the rated working conditions described in 2.1, the measured rated working error limit shall not exceed twice the corresponding basic error limit.
3 Security features
3.1 Withstand voltage
Between the voltage input terminal and the watch case, between the clamp current transformer core and the clamp handle and the secondary winding coil, it can withstand 1000V/50Hz, and the two voltage input terminals can withstand 500V/50Hz sine wave AC voltage for 1min. Test.
3.2 Insulation resistance
Between instrument circuit and shell, between two voltage input terminals: ≥10MΩ
4 Other technical characteristics
4.1 Display digits: 3 1/2
4.2 Sampling rate: 3 times/sec
4.3 Power supply: single 9V laminated battery, power supply current is less than 5mA
4.4 Dimensions
Case size: 186×86×33
Clamp shell size: 140×40×19
Jaw size: Φ7×8
4.5 Weight
Body: 280g
Measuring pliers: 2×200g
4.6 Storage conditions
Temperature: -10℃～50℃
Mobile version
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