RJ8921P AC and DC power measuring instrument (referred to as measuring instrument) with ADI high-performance ARM71 series controller as the core, using pure resistance sampling, no distortion, suitable for AC and DC true RMS measurement, 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 3 window LED highlighting display, simple and practical operation, standard serial communication.
n 0.2 high measurement accuracy;
n Ac/DC test of true RMS of TRMS;
n The minimum measurement current 2mA, to achieve the measurement of standby power consumption;
n Fast measurement speed, the fastest 200ms refresh rate;
n Voltage, current ratio setting function, easy to expand the measuring range;
n Voltage, current, power beyond the limit of sound and light alarm function, to meet the field quickly identify abnormal product needs;
n RS-232 or RS-485 serial communication port, easy to realize test automation and data transmission;
n Beautiful appearance design, small size, light weight.
Model number | RJ8921P |
Measuring channel | Single phase |
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, electrical energy timing Time |
Full scale peak factor | 1.6 |
Voltage rating range | 600V |
Current rating range | 5A card: 1A/5A 20A card: 1A/20A 50A card: 1A/50A |
Voltage accuracy range | AC/DC: rated range ×1% ~ rated range ×110% |
Current accuracy range | AC/DC: rated range ×1% ~ rated range ×110% |
Voltage/current Measurement accuracy | DC, 45Hz ~ 65Hz: ±(0.1%×rdg.+0.1%×f.s.) 10Hz to 45Hz,65Hz to 1kHz ±(0.1%×rdg.+0.2%×f.s.) |
Active power Measurement accuracy | DC，45Hz～65Hz： ±(0.1%×rdg.+0.1%×f.s.) 10Hz～45Hz,65Hz～1kHz ±(0.1%×rdg.+0.2%×f.s.) |
Active power range | DC ±(0.1%×rdg.+0.1%×f.s.) PF>0.5：45Hz～65Hz ±(0.1%×rdg.+0.1%×f.s.) 10Hz～45Hz,65Hz～1kHz ±(0.1%×rdg.+0.2%×f.s.) PF≤0.5： ±(0.25%×rdg.+0.25%×f.s.) |
Active power resolution | 0.001 W. |
Power factor range | ±(0.100 ～ 1.000) |
Power factor accuracy | ±0.01 (voltage/current amplitude greater than 10% of the corresponding range) |
Frequency measurement range | DC, 10Hz～1000Hz |
Frequency measurement accuracy | ±(0.1% x rdg.) (The voltage amplitude should be greater than 10% of the range) |
Electrical energy range | 0 to 999999MWh |
Electrical energy accuracy | ±(1%×rdg.) A total of 1.0000kWh |
Electric energy timing | 999 hours 59 minutes 59 seconds (±0.05%) |
Electrical energy timing accuracy | ±(0.05%×rdg.) |
Voltage/current ratio | 1～2000 |
Data update cycle | 0.25，0.5，1[s] |
Alarm function | 5 groups, voltage, current, power upper/lower limit, threshold setting |
Control interface | RS232 (optional RS485) PLC(optional) |
Operating environment | 0℃ ~ 40℃, 20%RH ~ 70%RH |
Power supply | AC220V, 50/60Hz |
Weight | 3kg |
Overall dimensions | 213×88×386 (W×H×D) mm without foot, foot height 15mm |
Opening size | 210 x 85 (W x H) mm |
Ruijie Instrument
4008-515-616
