Vibration Type Level Switch KVK/KVA/KVF Series

The vibration type level switch stably detects materials even with unstable relative permittivity and electrical properties!
Granules with an apparent specific gravity 0.03 or more can be detected.

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Features

  • It detects materials with unstable relative permittivity and moisture percentage etc.
  • Excellent pressure-proof performance with its stainless steel integral structure.
  • It can detect granules with an apparent specific gravity 0.03 or more.
  • For intrinsically safe model (KVS), rod for high sensitivity or for heavy load can be selected.

Operating Principles

The vibration rod is operated by the vibration element built in the sensing unit. When the material touches the rod, the vibration is attenuated. This is detected electrically and outputs contact.
ModelKVK seriesKVA seriesKVF series
Power supply105/210VAC ±10% 50/60Hz105/210VAC ±10% 50/60Hz105/210VAC ±10% 50/60Hz
Sensitivityover 0.03 Specific Gravityover 0.1 Specific Gravityover 0.3 Specific Gravity
Output contactSPDT 250VAC 5A
30VDC 5A
（Resistance load）		SPDT 250VAC 5A
30VDC 5A
（Resistance load）		SPDT 250VAC 5A
（Resistance load）
ON delayabout 10sec max. variableabout 10sec max. variableabout 10sec max. variable
Temperature (Amplifier)-20～+60℃
（No Condensation or Freeze)		-20～+60℃
（No Condensation or Freeze)		-20～+60℃
（No Condensation or Freeze)
Temperature (Probe)-20～80℃
（Built-in construction）
-20～+150℃
（Remote construction）
（No Condensation or Freeze）		-20～80℃
（Built-in construction）
-20～+150℃
（Remote construction）
（No Condensation or Freeze）		-20～80℃
（No Condensation or Freeze）
Pressure980kPa980kPa49kPa
Process connectionR1・1/2R1・1/2JIS 5K 65A
Enclosure ratingIP67IP67IP67

Product Lineup

In addition to the above, various specifications are available.
For more information, see respective catalogs or contact us by phone or mail.

  • KVK-111

    High Sensitivity Type
    Screw Joint Type
    (Built-in Amplifier)

    KVK-111

    High Sensitivity Type
    Screw Joint Type
    (Built-in Amplifier)

    • Powder with apparent specific gravity 0.03 or more is detectable.
    • Power supply DC24V is available as an option.
    • Fail safe function is equipped as standard.

  • KVK-23□

    High Sensitivity Type
    Extension Protective Tube
    Flange Type
    (Remote amplifier)

    KVK-23□

    High Sensitivity Type
    Extension Protective Tube
    Flange Type
    (Remote amplifier)

    • Powder with apparent specific gravity 0.03 or more is detectable.
    • Power supply DC24V is available as an option.
    • Fail safe function is equipped as standard.
    • Insertion length 4000mm Max.
    • Various flange types are available.

  • KVK-36□

    High Sensitivity Type
    Extension Protective Tube
    Screw Type
    (Remote amplifier)

    KVK-36□

    High Sensitivity Type
    Extension Protective Tube
    Screw Type
    (Remote amplifier)

    • A special model for the remote amplifier and the small case.
    • Powder with apparent specific gravity 0.03 or more is detectable.
    • Power supply DC24V is available as an option.
    • Fail safe function is equipped as standard.
    • Insertion length 4000mm Max.

  • KVA-121

    Withstand Load Type
    Flange Type
    (Built-in Amplifier)

    KVA-121

    Withstand Load Type
    Flange Type
    (Built-in Amplifier)

    • Withstandable load 500N Max.
    • Powder with apparent specific gravity 0.1 or more is detectable.
    • Power supply DC24V is available as an option.
    • Fail safe function is equipped as standard.
    • Various flange types are available.

  • KVF-121

    Flat Type
    Standard Type
    (Built-in Amplifier)

    KVF-121

    Flat Type
    Standard Type
    (Built-in Amplifier)

    • Flat rod model which is very unique in the industry.
    • Suitable for low level detection in the tank or where electrode can not intrude into the tank.
    • Powder with apparent specific gravity 0.3 or more is detectable.
    • Protective tube extendable model is available.(Max.200mm)
    • Various flange types are available.