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6F8A0917
8.2.3Exciting Frequency
The exciting frequency can be selected from 6Hz, 12Hz and 24Hz. Since the features shown below are apparent depending on the exciting frequency, select an appropriate exciting frequency.
Exciting frequency | 6Hz | 12Hz | 24Hz |
Good |
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| |
Response |
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| Good |
Fluid noise immunity |
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| Good |
However, the range of usable exciting frequency depending on the detector to be combined is shown below.
| Detector | Meter size | Corresponding exciting frequency | ||
| combined |
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| |
| 6Hz | 12Hz | 24Hz | ||
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| LF470 | 1/10",1/6”,1/4" (2.5 to 6 mm) | ○ | ○ | ◎ |
| LF150 | 26” to 120” (500 to 3000 mm) | ◎ | − | − |
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| 335 | All sizes | ◎ | − | − |
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* Partially filled pipes type LF232*F : Useable only 6Hz
◎Factory setting
○Combination allowed
−Combination not allowed
Checking the exciting frequency
Proceed as follows to check or change the setting value for exciting frequency.
Switch operation | Display example | Description |
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|
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| A3: EX. FREQ. | Select A3: EX. FREQ. from the setting item selection menu. |
| 24 Hz | The currently set exciting frequency appears. |
A3: EX. FREQ.
Returns to the menu of setting item selection.
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