At the forefront of Instrumentation since 1948

Loss of Head Indicator (capacitance based)

For measuring difference in level

Loss of Head (LoH) is measured by monitoring the Level in High Pressure and low pressure side of the gravity filter / Traveling water screen and showing the difference in these two levels. The instrument is based on the field proven RF capacitance technology and can be used for any differential level measurement using suitable probes.

Features

  • Digital Display
  • Maintenance Free
  • Local as well as remote indication
  • 4-20 mA output
  • In-Built Relays
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Application Examples

  • LoH Probe for detecting clogging of filter bed

    LoH Probe for detecting clogging of filter bed

  • Measuring Differential Level of water in a Municipal Corporation

    Measuring Differential Level of water in a Municipal Corporation

  • Technical Specifications
  • Applications
  • Operating Principle
  • Literature
  • Housing : Cast Aluminium, Powder Coated. 198*170* 99 mm
  • Mounting : Wall Mounting
  • Power Supply : 230/110 V AC, 50 Hz
  • Power Consumption : 4 VA (approximately)
  • Adjustment Range : Span : Min 10% of Electrode Length
    Max 80% of Electrode Length
    Zero : Max 80% of Electrode Length
  • Alarm : A relay C/O rated 6 Amps 230 V, non-inductiveload
    adjustable throughout range
  • Current output : 4-20mA DC non isolated, max. load resistance
    600 Ohms, corresponding to differential level
  • Accuracy : ±4% of Electrode Length
  • Option : 1. Local as well as Control Room Display
    2. Loss of Head (LoH) can be supplied with Rate of
    Flow (RoF) in a common CA Housing with
    IP-55Protection
  • Measuring Differential level in:-
    • Filter Beds
    • Effluent Treatment Plant
    • Water Treatment Plant
  • Detecting clogging of the travelling water screen (Backwash Application)

The RF Capacitance Level Switch works on the field proven RF Technology. A RF signal is applied to the probe and the tank (reference). A change in the level results in a change in the admittance between the probe and the tank. This change is detected by the electronics and an alarm generated.

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