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面议采用陶瓷测量单元的可靠、耐用型静压液位计
用于净水、废水及海水介质液位测量的一体化型物位测量仪表
HART通信方式
优点
Waterpilot FMX21是一款静压液位计, Endress+Hauser提供三种不同结构类型的Waterpilot FMX21供用户选择:
| 测量原理 | Hydrostatic | |
| Characteristic / Application | Cable probe for hydrostatic level measurement, with ceramic cell Diameter = 22mm: General applications, Drinking Water Diameter = 42mm: Wastewater applications Diameter = 29mm: Salt water applications Communication via HART | |
| Supply / Communication | 10.5 ...35V DC | |
| Accuracy | 0.2% Option: 0.1% | |
| Long term stability | 0.1% of URL/year | |
| Ambient temperature | -10°C...70°C (14°F...158°F) Diameter 29mm (1.14"): 0°C...50°C (32°F...122°F) | |
| Process temperature | -10°C...70°C (14°F...158°F) Diameter 29mm (1.14"): 0°C...50°C (32°F...122°F) | |
| Process pressure absolute / max. overpressure limit | 40bar (600psi) | |
| Pressure measuring range | 100mbar...20bar (1.5psi...300psi) | |
| Main wetted parts | Diameter 22mm and 42mm: Seal, 316L, Ceramic Diameter 29mm: Seal, PPS, Polyolefin, Ceramic Extension cable: PE, PUR, FEP | |
| Process connection | Suspension clamp Cable mounting screws | |
| Max. measurement distance | 200m H2O (656 ft H2O) | |
| Output | 4...20 mA HART | |
| Certificates / Approvals | ATEX FM CSA IECEx NSF/KTW/ACS GL/ABS marine | |
| Options | Absoloute measuring cell Integrated temperature sensor Pt100, 4-wire customer specific adjustment customer specific cable marking | |
| Specialities | Automatic density compensation Version w/o metal parts in contact to process | |
| Application limits | Measuring cell: ceramics | |
