PM9871V-81 single-phase AC voltage transmitter is a new type of transmitter device developed using DSP and single-chip technology. It is used to measure single-phase AC voltage and output DC 4-20mA analog signal. It has high accuracy, reliability, and cost-effectiveness, and is suitable for industries such as power, post and telecommunications, metallurgy, and chemical industry.
The PM9871V-81S is a single‑phase AC voltage transmitter that uses DSP and microcontroller technology to measure line voltage and output a 4‑20 mA current signal. It offers 0.5 % accuracy, long‑distance transmission capability, programmable output, and isolated high‑strength shock resistance, suitable for power, telecommunications, metallurgy, chemical and other industries.
The manual provides technical parameters, environmental test compliance, mechanical dimensions, installation and wiring diagrams, panel layout, transport and storage guidelines, as well as simple operation steps and an automatic calibration procedure using the built‑in calibration button and external calibration device. This manual is written in Chinese.
| Input voltage range | 0‑100V/120V/380V/500V |
|---|---|
| Input frequency | 40‑70 Hz |
| Output current range | DC 4‑20 mA |
| Measurement accuracy | 0.5 % |
| Output load capability | 0‑750 Ω |
| Operating temperature | 0 ℃ ～ +55 ℃ |
| Storage temperature | -20 ℃ ～ +70 ℃ |
| Insulation resistance | ≥ 100 MΩ, DC 500 V |
| Isolation voltage | 400 A/m |
| Continuous over‑voltage rating | 800 V |
| Short‑time over‑voltage rating | 1200 V (1 s) |
| Response speed | ≤ 400 ms (0‑99 %) |
| Output ripple | ≤ 0.5 % RO. |
It provides a DC 4‑20 mA current output signal.
The transmitter’s measurement accuracy is 0.5 %.
It can be powered from AC 90‑260 V (50/60 Hz) or DC 90‑260 V.