Vibrating Fork Level Switch For Solids / Tuning Folk Liquid Level Switch KVF Series NPN / PNP output
KVF Series Vibrating Fork Liquid / Solid Level Switch Tuning Folk Liquid Level Switch
KVF series is an compact vibrating fork liquid level switch. It can be applied to the level measurement of vessels and storage tanks under difficult conditions. It is not only suitable to use in foams, air bubbles, viscous liquid and conditions with complex vibrating interference, but also particularly suitable to be installed in small containers and tanks with constricted mounting space. It measures the liquid/solid level by detecting the change of the vibration frequency when the folk body is immersed in medium.
1. Working Principle:
KVF level switch fulfills the level measurement by detecting the change of the vibration frequency when the folk body is immerced in medium. The frequency of the tuning fork will obviously decreases when it contacts the medium, and the change shall be detected by the intelligent control circuit and converted into corresponding output signal.
2. Technical Features:
- The length can be up to 3m;
- DPDP SPDT Relay / NPN / PNP output
- 20~250VAC / VDC, 50/60Hz
- Whole metal construction, sturdy and durable.
- Self-learning function. I can directly detect the density of different medium via the buttons.
- The vibration amplitude of the fork is large which can be up to 10mm. It can shake off the low-viscosity local hanging material on the induction rod to avoid any error thus caused;
- Bright red LED warning light.
- Can be used for measurement of liquid, powder, solid particals and stickly medium.
3. Technical Specification:
| Item | Specification |
| Controller Casing Material | Aluminium alloy (IP65) |
| Power Supply | 22-60VDC, 22-220VAC, 50/60Hz |
| Power Consumption | DC-3W (MAX), AC-15W (MAX) |
| Output | DPDT 5A/250VAC or NPN/PNP |
| Operating Pressure | -1-40bar |
| Installation |
vertical or horizonta |
4. Spefication of Different Models:
5. Model Selection:
| KVF | ||||||
| Model | ||||||
| 110 | standard type | |||||
| 111 | lengthen type | |||||
| 120 | sanitary type | |||||
| 130 |
acid and alkali resistant |
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| 140 | big fork body type | |||||
| 141 | big fork body lengthen type | |||||
| 150 | small fork standard | |||||
| 151 | small fork lengthen type | |||||
| 160 | short fork standard | |||||
| 161 | short fork sanitary joint type | |||||
| 180 | explosion proof type | |||||
| 190 | vibrating fork rod | |||||
| Power and Output | ||||||
| Code | Power Supply | |||||
| A | 224VDC-220VAC relay output | |||||
| B | (NPN PNP transistor output) | |||||
| Code | Connection | Code | Size | |||
| A | 3/4” (20A) | M | 5Kg/cm2 | |||
| B | 1” (25A) | N | 10Kg/cm2 | |||
| C | 1-1/2” (40A) | O | 150Lbs | |||
| D |
2” (50A) |
P |
300Lbs |
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| E | 2-1/2” (65A) | Q | PT | |||
| F | 3” (80A) | R | PF (G) | |||
| G | 4” (100A) | T | NPT | |||
| H | 5” (125A) | U | sanitary joint | |||
| I | 6” (150A) | W | PN1.0 | |||
| S | customize | X | PN1.0 | |||
| Y | PN1.0 | |||||
| Z | PN1.0 | |||||
| S | customize | |||||
| Rod Length (mm) | ||||||
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Note: 1. The total length of the product is affected by the function adjustment, and the tolerance is ±5mm. 2. Features, specifications and dimensions could be modified when necessary without prior notice. |
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