LTX22 Capacitance Level Transmitter

Brand: Intempco Controls, Inc

The Intempco LTX22 is a capacitance level sensor designed for modulating level control of liquids in metallic tanks.

The probe is normally installed in a steam boiler, or metal tank, where it is grounded through the process fitting, the boiler tank forming the ground return path.

It can be used in a non-conductive tank if an grounding reference rod is provided. The probe measures level by measuring the change in capacitance as level changes in the tank.

The micro-processor based electronics converts this capacitance change into a linear, highly accurate output signal.

This signal may be used with one or more electronic modules to provide level control, level alarms, and/or outputs to a building management system.

The LTX22 is available with an enclosure and installed electronics or an enclosure and remotely installed electronics in a NEMA 4 box.

The connection is made via coax cable. Remote electronics are a preferred choice for higher ambient temperature applications.
  • High pressure/temperature design for steam boilers
  • Transmitter housed in rugged aluminum head or remotely
  • Microprocessor based design
  • Accuracy 1% of span for constant dielectric of material
  • Non-interactive zero and span calibration
  • Continuous 4-20 mA Analog output operation
  • High pressure 1/2" and 3/4" fittings available
  • Ceramic clad, inner stainless probe design



  • ± 0.5 % of Full Span

Ambient Temperature Range

  • -40° to 70° C (-40° to 158° F)


  • Via 4 Push-Button Switches, Non-interactive Zero & Span


  • 10 to 10,000 PF

Conduit Connection

  • 1/2” NPT
  • 3/4” NPT

Damping Adjustment

  • 0 to 30 seconds


  • Integral 4-Digit LCD

Enclosure, Body Material

  • Aluminum

Environmental Protection

  • IP66
  • NEMA 4
  • Typical 4X


  • 10 to 55 % Relative Humidity

Loop Resistance

  • 700 ohms at 24 Vdc, Max.

NPT Connection

  • 1/2” NPT Male
  • 3/4” NPT Male


  • 4-20 mA, 2-Wire Loop Powered

Power Supply Effect

  • < 0.1 % of Output at, Max.

Pressure Range

  • bar: 1 to 34
  • kPa: 100 to 3,400
  • psi: 14.5 to 500

Process Connection Material

  • 316L Stainless Steel

Response Time

  • 2 to 30 seconds with Adjustable Damping Time
  • Less than 2 to 3 seconds with No Damping Time

Sensor, Probe Diameter

  • Probe O.D.: 1/2” (12.7 mm)

Sensor, Probe Material

  • Probe: Ceramic Clad Stainless Rod
  • Probe: Teflon PFA Clad Stainless Rod

Supply Voltage

  • 12-32 Vdc

  • High Pressure/Temperature Steam Boilers
  • For Level Control in Building Management
  • Water and Water-Based Liquids.
  • On-Site Calibration Required
  • Not Recommended Where Material Dielectric Changes
  • Tank must be Conducive or Grounding May be Required or See Other Intempco Level Probes.
  • Do Not Use in High Vibration/Shock Applications

show more