Switch-Tek™ LP15 Capacitance Point Liquid Level Switch



The general purpose guard capacitance point liquid level switch provides high or low liquid level detection of water based conductive liquids with light coating, crystallizing or scaling characteristics with a 1A relay output. Media examples include copper sulfate and brine. For best performance, install the sensor vertically and the RF guard circuit eliminates the coating signal path between the active and reference electrodes. The submersible polypropylene liquid level sensor can be mounted inside the tank or through non-metallic tank walls as a high level alarm or low level alarm.


Guard circuit optimizes performance in coating type media

Submersible PP sensor body and cable for corrosive liquids

60VA relay selectable NO or NC via power supply wiring polarity

Compatible with Switch-Pak fitting for vertical tank installation



Orientation: Universal
Accuracy: ± 1mm in water
Repeatability: ± 0.5mm in water
Dielectric range: 20 constants
Conductive range: 100 μ
Supply voltage: 12-36 VDC
Consumption: 25 mA maximum
Contact type: (1) SPST relay
Contact rating: 60 VA, 1A maximum
Contact output: Selectable NO / NC
Process temp: F: -40° to 176°, C: -40° to 80°
Pressure: 150 psi (10 bar) @ 25º C., derated @ 1.667 psi (0.113 bar) per ºC. above 25º C.
Sensor rating: NEMA 6 (IP68)
Sensor material: Polypropylene
Cable jack. mat.: Polypropylene
Cable type: 4-conductor, shielded #22 AWG
Cable length:

10’ (3m)

Process mount: 3/4” NPT (3/4” G)
Mount. gasket:

Viton® (G version only)

Classification: General purpose
Compliance: CE


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