Optional Transmitter Configuration
Figure
mA output
20
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| 0 | x | ||||||
Reverse |
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| Forward | |||
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flow(1) | Zero |
| flow |
| flow(2) | |||
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Flow direction parameter:
• Forward
outputmA | 20 |
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| outputmA | 20 |
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12 |
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| 4 |
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| 4 |
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| 0 | x |
| 0 | x | ||
| Reverse |
| Forward |
| Reverse |
| Forward |
| flow(1) | Zero flow | flow(2) |
| flow(1) |
| flow(2) |
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| Zero flow |
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Flow direction parameter: | Flow direction parameter: | ||||||
• | Reverse |
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| • | Absolute value |
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• | Negate Forward |
| • | Bidirectional |
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| • | Negate Bidirectional |
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Using the Transmitter
Optional
mA output configuration: | (1) | Process fluid flowing in opposite direction from flow direction arrow on sensor. | |
• 20 mA value = x | (2) | Process fluid flowing in same direction as flow direction arrow on sensor. | |
• | 4 mA value = |
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To set the 4 mA and 20 mA values, see Section 4.5.2.
Configuration
Example 1 | Configuration: | |
| • | Flow direction = Forward |
| • | mA output: 4 mA = 0 g/s; 20 mA = 100 g/s |
| (See the first graph in Figure |
As a result:
•Under conditions of reverse flow or zero flow, the mA output level is 4 mA.
•Under conditions of forward flow, up to a flow rate of 100 g/s, the mA output level varies between 4 mA and 20 mA in proportion to (the absolute value of) the flow rate.
•Under conditions of forward flow, if (the absolute value of) the flow rate equals or exceeds 100 g/s, the mA output will be proportional to the flow rate up to 20.5 mA, and will be level at 20.5 mA at higher flow rates.
Filler Configuration
Using the Filler
Configuration and Use Manual | 43 |