The PK40 series multi-channel signal isolators are used for adjusting, isolating, and converting various signals of field instruments into standard signals that can be accepted by computers, DCS, PLC, or user-specified special signals. It has a high cost performance, is reliable and stable, and can be used in conjunction with unit combination instruments and DCS, PLC, and other systems. It has a wide range of applications in major projects in the oil field, petrochemical, manufacturing, power, metallurgy, and other industries.
The PK40 series multichannel signal isolator is designed for isolating and converting various field instrument signals to standard signals accepted by computers, DCS, PLC, and other systems. It offers full three‑way isolation (input, output, power), strong anti‑interference capability, high accuracy, and rail‑mountable design, making it suitable for oil‑field, petrochemical, manufacturing, power, and metallurgical projects.
The manual details electrical characteristics such as transmission accuracy, temperature drift, input impedance, load limits, insulation resistance, and isolation voltage. It also includes wiring diagrams, pin definitions for up to five channels, environmental requirements, physical dimensions, mounting instructions, and product selection options. This manual is written in Chinese.
| Transmission Accuracy | ±0.29% FS |
|---|---|
| Temperature Drift | 25 ppm/°C |
| Maximum Load (Voltage Output) | > 10 kΩ |
| Power Supply | DC 24 V with reverse‑polarity protection |
| Relative Humidity | 10%–90% RH |
| Net Weight | 140 g |
| Mounting | 35 mm standard DIN rail |
The PK40 series is offered in 2‑, 3‑, 4‑, and 5‑channel versions.
It requires a DC 24 V supply with reverse‑polarity protection.