Product Description
RS20000E Double Clamp Digital Phase Meter is special designed for
testing voltage, current and phase onsite, it is in high-precision,
low price, portable hand-held, dual-channel input measuring
products. It’s easy to measure the phase between U-U, I-I and U-I,
identify the inductive circuit ,capacitive circuit and the phase
sequence of three-phase voltage, detect the wiring group of
transformer, test the secondary circuit and bus differential
protection system, read the phase relationship among the CT groups
of a differential protection system, and check if the watthour
meter was correctly wired. When testing customers do not need cut
off the measured circuit which input by split core current
transformer. When measuring the phase between U1 and U2, the two
input circuit loop are completely insulated isolation, so the
possibility of misconnection is absolutely avoided, which may
result in short circuit or even burn the meter. The device with
high-contrast LCD screen, and the character in big size, which
helps to obtain the best visual effects.
Product Features
1. Ingenious structure, easy to operate.
A. hand held structure
B. you should not disconnect the circuit or change the measurement
range under 10mA-10A, 3V-500v.
C. use high contrast LCD, character can be 25mm, the screen angle
can be 700, to obtain the best visual effects
D. the function and layout of the switch are reasonable, rotating
can read the measuring voltage, current and phase.
2. High resolution
Adopt new type patent current clamp, current resolution up to
0.1mA; voltage resolution up to 0.1V.
3. Low power consumption
This product with micro power consumption design and with the
function of testing the voltage of battery
Intrinsic Error
| Reference Working Conditions | Temperature | (23±5)℃ |
| Hunidity | (45~75)%RH |
| Wave forms of measured signal | sine wave,β=0.02 |
| Frequency of measured signal | (50±0.2)Hz |
| Position of Measured current carrying conductor in the nipper jaw | Optional position |
| Amplitude range of measured signal when measuring phase | 100~220V,0.5~1.5A |
| External reference frequency electromagnetic interference | Should be avoided |
Limits of Intrinsic Error
1 AC Voltage
| Table 1:Measurement Error of AC Voltage |
| Measure range | Resolution | Limits of intrinsic error |
| 20V | 0.01V | ±(0.3%RD+0.2% Range) |
| 200V | 0.1V | ±(0.3%RD+0.2% Range) |
| 500V | 1V | ±(0.3%RD+0.2% Range) |
Input Impedance:2MΩ for all the measure range .
Voltage input impedance of phase testing: >500KΩ
2 Alternating current
| Table 2:Measurement Error of alternating current |
| Measure range | Resolution | Limits of intrinsic error |
| 200mA | 0.1mA | ±(0.3%RD+0.2) |
| 2A | 1mA |
| 10A | 10mA |
3 Phases
U-U,U-I,I-I (see Table 3)
| Table 3: Measurement Error of Power-frequency Phase |
| Range | Resolution | Limits of intrinsic error |
| 0~360° | 1° | ±2° |
Impedance of input voltage loop when measuring phase of U1-U2:40KΩ
Operating error
| Rated Working Conditions | Temperature | (0~40)℃ |
| Humidity | (20~80)% RH |
| Wave forms of measured signal | Sine wave,β=0.05 |
| Frequency of measured signal | (50±0.5)Hz |
| Position of Measured current carrying conductor in the nipper jaw | Optional position. |
| 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 |
| External reference frequency electromagnetic interference | should be avoided |
| Limits of Rated Working Error | Under the conditions described in 1, the limits of the rated
operating error will not exceed twice of the limits of intrinsic
error. | |
Other technical features
| Display | three and half | |
| Sampling rate | 3 times per second | |
| Power supply | Single 9V laminated cell,current of power is less than 5mA | |
| Dimensions | Meter shell | 192×95×55mm3 |
| Clamp shell | 140×42×20mm3 |
| Nipper jaw | Φ7mm×9mm |
| Weight | Meter body | 280g |
| Measuring clamps | 2×200g |
| Storage Conditions | Temperature | -10℃~50℃ |
