Grounding
Step 5 Grounding
The sensor can be grounded via the piping if the joints in the pipeline are
Improper grounding can cause measurement error. Ground the flowmeter to earth, or follow ground network requirements for the facility.
If national standards are not in effect, follow these guidelines to ground the sensor:
•Use copper wire, 14 AWG (2,0 mm²) or larger wire size for grounding.
•Keep all ground leads as short as possible, less than 1 ohm impedance.
•Connect ground leads directly to earth, or follow plant standards.
Pressure Ratings at High Temperatures
Table 3 shows the pressure ratings for
Table 3
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PN | Type | Facing | Description | ASTM | ≤50°C | 100°C | 150°C | 200°C | 250°C | 300°C | 350°C | 400°C | 427°C | |||
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40 | 11 | B1 & D | Flange, EN | 316 | 40.0 | 40.0 | 36.3 |
| 33.7 | 31.8 | 29.7 |
| 28.5 | 27.4 | 26.9 | 1 |
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| Forms B1 & D |
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100 | 11 | B2 & D | Flange, EN | 316 | 100.0 | 100.0 | 90.9 |
| 84.2 | 79.5 | 74.2 |
| 71.4 | 68.5 | 67.3 | 1 |
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| Form B2 & D |
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100/ | 11 | B2 | Flange, EN | 316 | 100.0 | 100.0 | 90.9 |
| 84.2 | 79.5 | 74.2 |
| 71.4 | 68.5 | 67.3 | 2 |
160 | weld |
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| 160.0 | 160.0 | 145.5 |
| 134.8 | 127.2 | 118.8 |
| 114.2 | 109.7 | 107.8 | 3 | |||
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| PN100/160 |
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| Form B2 (316) |
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40 | 32/02 | B1 | Flange, EN | 40.0 | 34.4 | 30.8 |
| 28.0 | 26.0 | 24.1 |
| 23.0 | 22.0 | 21.4 | 4 | |
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| 304 flange |
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| joint |
| Form B1(lap |
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1.Pressure rating limited by flange (for 316 sensor tubes).
2.Pressure rating limited by sensor tube for sensor type F025S, F050S, F050A, F050C.
3.Pressure rating limited by flange for sensor type F025A, F025C, F025P, F050P.
4.Pressure rating limited by flange (for
Sensor Installation: | 19 |