VEGABAR 87 Chinese Manual Download
VEGABAR 87 is a high-precision pressure transmitter launched by VEGA, widely used in pressure and level measurement in the chemical, petrochemical, pharmaceutical and other industries. To facilitate engineering technicians and procurement personnel in quickly obtaining technical materials, this article provides the download of the VEGABAR 87 Chinese manual and outlines the core selection and usage points.
Download VEGABAR 87 Chinese Manual.pdf
VEGABAR 87 Core Parameters Overview
VEGABAR 87 uses a ceramic measuring element and has excellent overload and corrosion resistance. The following table lists the main technical parameters for quick comparison by procurement and design personnel.
| Parameter | Specification |
|---|---|
| Measuring range | 0～0.1 bar to 0～100 bar |
| Accuracy class | ±0.1% of span |
| Process connection | G1/2, G1, NPT1/2, etc. |
| Output signal | 4～20 mA / HART, Profibus PA, Foundation Fieldbus |
| Protection class | IP66/IP67, IP68 (optional) |
| Process temperature | -40～+150℃ |
| Ambient temperature | -40～+80℃ |
VEGABAR 87 Selection Points
Correct selection is the prerequisite for ensuring stable measurement and long-term reliable operation. The following points can help engineers quickly identify the appropriate model.
1. Measuring range and overload capacity
- Select the range according to the maximum working pressure; it is recommended that the working pressure be between 30%～70% of the range.
- The ceramic measuring element has high overload capacity and can withstand short-term overpressure of 2～5 times the range.
2. Process connection and material
- Select thread specifications such as G1/2, G1 or NPT according to the pipeline interface.
- For corrosive media, select wetted materials such as 316L stainless steel, Hastelloy or PTFE.
3. Output signal and communication protocol
- Traditional control systems can choose 4～20 mA/HART.
- Digital factories are advised to choose Profibus PA or Foundation Fieldbus.
VEGABAR 87 Installation and Commissioning Steps
Standardized installation and commissioning can significantly improve measurement accuracy and service life. The following is the recommended operation process.
- Confirm that the process connection thread matches the seal, and apply an appropriate amount of sealant.
- Screw the transmitter into the installation point and tighten it with a wrench, avoiding excessive force that may damage the housing.
- When wiring, pay attention to power polarity, and ground the shielded wire at one end to prevent electromagnetic interference.
- After power-on, perform zero and span calibration via a HART communicator or VEGA DTM.
- Check whether the output signal is stable, and adjust the damping time if necessary.
Common Problems and Maintenance Recommendations
To ensure long-term stable operation, regular inspection and maintenance are recommended.
- Zero drift: Perform zero calibration regularly, especially in locations with large temperature changes.
- Diaphragm scaling: Clean regularly according to medium characteristics to avoid affecting sensitivity.
- Seal aging: Inspect seals annually and replace them if necessary.
- Lightning protection: For outdoor installation, it is recommended to add a surge protector.
For complete technical materials, please download the VEGABAR 87 Chinese manual, which includes detailed dimension drawings, wiring diagrams and fault code tables.