RJ8921 AC and DC power measuring instrument (referred to as measuring instrument) with ADI high performance ARM71xx controller as the core, using pure resistance sampling, no distortion, suitable for small power electrical parameter testing, widely used in single-phase electrical equipment voltage, current, power, power factor, frequency, electrical energy, time and other electrical parameters measurement, wide measuring range, Using LCD liquid crystal display, simple and practical operation, standard serial communication.
n 0.2 high measurement accuracy;
n Ac-dc dual test;
n Special range design: maximum voltage range 600V, minimum voltage range 150V, maximum current range 20A, minimum current range 1A, to meet the power test requirements of all kinds of small home appliances voltage, current ratio setting function, easy to expand the measuring range;
n Wide band measurement: AC, DC signal dual-purpose, suitable for non-standard waveform load measurement;
n Voltage, current, power, power factor overlimit alarm function, to meet the field quickly identify abnormal product demand;
n RS-232 or RS-485 serial communication port, easy to realize test automation and data transmission;
n Portability: small chassis design, compact and delicate, light weight, standard size, to meet the installation requirements of engineering test system.
Model number | RJ8921 |
Measuring channel | monophase |
Measuring parameters | Voltage U, current I, active power P, reactive power Q, apparent power S, power factor λ, phase Angle φ, voltage frequency f, electrical energy Wh, accumulation time, positive and negative peak voltage Upeak+/Upeak-, positive and negative peak current Ipeak+/ Ipeak-, 50 harmonic analysis, voltage distortion degree Uthd, current distortion degree Ithd |
Full scale peak factor | 1.6 |
Voltage measurement range | 150.00V / 300.00V / 600.00V |
Current rating range | Standard: 1A/20A Optional: 100mA/5A || 1/40A |
Voltage accuracy range | AC/DC: 3-600V |
Current accuracy range | AC/DC: 10mA-1A/20A || 20mA-20A |
Voltage/Current Measurement accuracy | DC, 45Hz≤ f ≤65Hz: ±(0.1%rdg.+0.1%f.s.) |
Active power Measurement accuracy | PF>0.5: ±(0.1%rdg.+0.1%f.s.) PF≤0.5: ±(0.25%rdg.+0.25%f.s.) |
Reactive power | PF=0: ±(0.25%rdg.+0.25%f.s.) |
Active power resolution | 0.001 W. |
Power factor range | ±(0.1～1) |
Power factor accuracy | ±0.01 (voltage/current amplitude greater than 10% of the corresponding range) |
Frequency measurement range | DC, 45Hz≤f≤65Hz |
Accuracy of frequency measurement | ±(0.1%rdg.) (voltage amplitude should be greater than 10% of the range) |
Electrical energy range | 0 to 999999MWh |
Electrical energy accuracy | PF>0.5: ±(0.1%rdg.+0.1%f.s.) PF≤0.5: ±(0.25%rdg.+0.25%f.s.) |
Electric energy timing | 999 hours 59 minutes 59 seconds (±0.05%) |
Electrical energy timing accuracy | ±(0.05%×rdg.) |
Voltage/current ratio | 1～2000 |
FFT spectrum analysis | (Optional) 50 harmonic analysis, voltage distortion Uthd, current distortion Ithd |
Alarm function | 5 groups, voltage, current, power, power factor upper/lower limit, threshold setting |
Control interface | RS-232 (optional RS-485) |
Machine weight | About 3kg |
Opening size | 210(W)×85(H) mm |
Exterior dimensions | 213mm×88mm×386 mm(W×H×D) without foot, foot height 15mm |
Ruijie Instrument
4008-515-616
