8E2C Mass Flowmeter Chinese Manual (HART Version) Overview
8E2C mass flowmeter is a high-precision direct mass flow measurement instrument based on the Coriolis principle, supporting HART communication protocol, widely used in petroleum, chemical, pharmaceutical, and food industries. This Chinese manual (HART version) details the product's installation, wiring, parameter setting, calibration, and troubleshooting methods. You can download the complete PDF document via the link below to quickly obtain technical information.
Product Core Features and Advantages
The 8E2C mass flowmeter adopts advanced digital signal processing technology and can directly measure mass flow, density, and temperature without additional compensation. Its HART communication function supports remote configuration and diagnostics, greatly improving on-site commissioning efficiency.
- High-precision measurement: Mass flow accuracy up to ±0.1%, density accuracy ±0.001 g/cm³.
- Multi-parameter output: Simultaneously outputs mass flow, volumetric flow, density, and temperature.
- HART communication: Supports 4-20mA analog and HART digital signal superposition, compatible with mainstream DCS and handheld communicators.
- Wide turndown ratio: Typical turndown ratio 100:1, adapting to different working conditions.
- Self-diagnosis function: Real-time monitoring of sensor status, early fault warning.
Technical Parameters Quick Reference Table
The following are key technical parameters of the 8E2C mass flowmeter for selection and procurement reference. For detailed parameters, please refer to the complete manual.
| Parameter | Typical Value/Range | Description |
|---|---|---|
| Mass flow accuracy | ±0.1% reading | Liquid conditions |
| Density accuracy | ±0.001 g/cm³ | — |
| Temperature accuracy | ±0.5°C | — |
| Medium temperature range | -50°C ~ +200°C | Depends on model |
| Ambient temperature | -40°C ~ +60°C | — |
| Output signal | 4-20mA + HART | HART version |
| Power supply | 24V DC | Typical value |
| Protection class | IP67 | Standard configuration |
| Process connection | Flange/Clamp | Multiple options |
Installation and Wiring Guide
Correct installation is the prerequisite for ensuring the measurement accuracy of the 8E2C mass flowmeter. Please strictly follow the steps below and pay attention to pipeline stress and vibration effects.
Installation Steps
- Confirm the pipeline has been depressurized, drained, and cooled to a safe temperature.
- Install the flowmeter on the pipeline according to the flow direction arrow, ensuring the sensor orientation is correct.
- Use flange or clamp connections, tighten bolts evenly to avoid excessive stress.
- Ensure sufficient straight pipe sections before and after the flowmeter (typically 5D upstream and 3D downstream).
- For liquid measurement, it is recommended to install the flowmeter at the low point of the pipeline to prevent bubble accumulation.
- When wiring, open the transmitter cover and connect power and signal lines according to terminal markings.
- After wiring is complete, tighten the cable gland to ensure the protection class.
Wiring Precautions
- Use shielded cables, with the shield grounded at one point on the transmitter end.
- Route power and signal lines separately to avoid interference.
- For HART communication, ensure loop resistance ≥250Ω.
HART Communication Configuration and Commissioning
The 8E2C mass flowmeter supports HART 7.0 protocol and can be configured via handheld communicator or HART modem. The following is the basic configuration process.
Configuration Steps
- Connect the HART handheld communicator or modem to the 4-20mA loop.
- After power-on, the handheld communicator automatically identifies the device and enters the online menu.
- In "Device Setup", configure parameters such as units, range, and damping time.
- In "Diagnostics/Service", perform zero calibration and loop test.
- Save settings and exit, record configuration parameters.
Common HART Parameters
| Parameter | Description | Default Value |
|---|---|---|
| Polling address | Multidrop mode address | 0 |
| Units | Mass flow units | kg/h |
| Upper range value | 20mA corresponding value | Depends on model |
| Damping | Output response time | 1.0 s |
Maintenance and Troubleshooting
Regular maintenance can extend the service life of the 8E2C mass flowmeter. It is recommended to perform zero calibration and visual inspection every 12 months.
- Zero drift: Ensure the pipeline is full and no flow, perform zero calibration.
- No output: Check power supply, wiring, and fuse.
- HART communication failure: Check loop resistance, cable shielding, and handheld communicator connection.
- Large measurement error: Check pipeline stress, bubbles, or particle deposition.
For more detailed fault codes and handling methods, please download the complete Chinese manual.
Download 8E2C Chinese Manual (HART Version)
Click the link below to obtain the 8E2C Mass Flowmeter Chinese Manual HART Version.pdf, including complete installation dimensions, wiring diagrams, HART parameter lists, and certification information.
For selection assistance or technical support, please contact our engineering team.