Emerson Micro Motion GDM
气体密度（兼比密度 / 分子量） | 不适用（单参数密度测量） | 无
Key Specifications
| Brand | Emerson |
|---|---|
| Model | Micro Motion GDM |
| Category | Process Analyzers |
| Measured parameters | 气体密度（兼比密度 / 分子量） |
| Channels | 不适用（单参数密度测量） |
| Sensor technology | Ni-Span C 振动筒（Vibrating Cylinder）技术 |
| Accuracy | Ar/N2 ±0.1% 读数；天然气/乙烯 ±0.15% 读数 |
| Power supply | 24 V DC（外部供电；4-20 mA 被动输出 + HART/Modbus 可选） |
| Communication protocol | HART / Modbus RS-485 / TPS（时周期信号） |
| SIL rating | 无 |
| Explosion protection | ATEX / IECEx / CSA（本安） |
| IP rating | IP66/67 |
| Regulatory standards | AGA 3 / ISO 5167 / ISO 15970；ISO 17025 校准 |
Data Sources
- Product page: https://www.emerson.com/en-al/catalog/micro-motion-sku-gdm
- Datasheet: https://www.emerson.com/en-al/catalog/micro-motion-sku-gdm
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