CPS491D Chinese Manual Download and Product Overview
This page provides the PDF file download of the CPS491D Chinese Manual, making it convenient for engineering technicians and procurement personnel to consult at any time. The manual covers product introduction, technical parameters, installation and wiring, debugging steps, and troubleshooting content. It is recommended to read carefully before selection, installation, and maintenance.

After downloading CPS491D Chinese Manual.pdf, you can quickly obtain official technical materials to ensure the correct use of this industrial pressure transmitter.
CPS491D Core Parameters Quick Reference
For quick selection, the table below summarizes the key technical parameters of the CPS491D. For actual parameters, please refer to the latest version in the manual.
| Parameter Item | Typical Value/Range |
|---|---|
| Measured Medium | Gases and liquids compatible with 316L stainless steel |
| Range | 0–0.1MPa to 0–60MPa (optional) |
| Output Signal | 4–20mA / HART / RS485 (depending on model) |
| Power Supply | 12–36VDC (typically 24VDC) |
| Accuracy Class | ±0.5%FS, ±0.25%FS (optional) |
| Process Connection | M20×1.5, G1/2, NPT1/2, etc. |
| Protection Rating | IP65 / IP67 (depending on model) |
Installation and Wiring Key Points
Mechanical Installation Steps
- Confirm there is no pressure in the pipeline, close the valve, and drain the medium.
- Install the CPS491D in a suitable position and ensure the process connection is well sealed.
- Tighten with a wrench, avoiding excessive force that may damage the threads.
- For liquid measurement, it is recommended to install on the side or bottom of the pipeline to prevent bubble accumulation.
Electrical Wiring Precautions
- Wire strictly according to the terminal definitions in the manual. The positive and negative poles of the power supply must not be reversed.
- Use shielded cables, with the shield grounded at one end to reduce electromagnetic interference.
- After wiring, check the sealing connector to ensure the protection rating is not affected.
- Before power-on, reconfirm that the supply voltage is within the 12–36VDC range.
Debugging and Common Problem Handling
Before debugging, ensure that a standard pressure source has been applied. Zero and span calibration can be performed via a HART communicator or RS485 communication. If the output is abnormal, first check the power supply, wiring, and whether the medium is blocked.
- No output signal: Check whether the power polarity and voltage are normal.
- Large output deviation: Recalibrate the zero and span, and check whether the process connection leaks.
- Communication failure: Confirm that the communication protocol, address, and baud rate settings are consistent.
For more detailed fault codes and handling measures, please download the CPS491D Chinese Manual to view the complete chapters.