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Liquid Level Systems

...specialists in liquid level measurements and control


Analogue Indicators

  • Loop powered (by the 4-20mA transmitter)
  • No additional power supply required
  • Moving coil mechanism with 250 degree pointer deflection
  • Displays any unit of mass, volume or depth of liquid
  • Available in round (100 & 160mm) casings
Analogue Indicator

Digital Bar Graph Indicators (LLS02)

  • LED bar graph & 5 digit display (litres or m3)
  • Input: 4-20mA, Outputs: 4-20mA & RS485
  • Power supply 24Vdc or 90-250Vac
  • 20 point linearization table
  • 2 programmable level alarms
  • External power supply for sensor (24Vdc)
  • Panel mounting (72x144x100mm LxHxD)
Data Sheet
Digital Bar Graph Indicator

GSM Transmitters (AutoLog GSM-RTU)

  • Communicate tank level data over GSM/GPRS network
  • Receive level alarms via SMS or email
  • View live and historical data on internet
  • Ideal for monitoring tank levels in remote locations
  • External power supply for sensor (24V DC)
GSM Transmitters

Intrinsic Safety Zener Barriers

  • Permit the use of level transmitters in hazardous areas
  • Safely divert excess electrical energy to ground
  • Prevent sparking or overheating of equipment
  • Operate in analogue DC or high-speed digital forms
  • DIN rail mounting provides quick and easy installation
  • Bussed power reduces cabling
  • Single or dual channel modules
Intrinsic Safety Zener Barriers

Junction Boxes

  • Robust die-cast aluminium enclosure
  • 3 cable glands (2 x M20, 1 x M16)
  • Breather gland for atmospheric pressure compensation
  • 5 way terminal block mounted on DIN rail
  • 175x80x57mm (LxHxD)
Junction Box

Penetration Glands

  • Designed to prevent leakage
  • Water-tight up to a maximum pressure of 35 bar
  • Facilitate passage of cable through tank walls
Penetration Gland

Tank Gauging System

  • Windows based panel PC
  • Continuous tank contents measurement
  • Bar graph and numeric indication
  • High and low level alarms
  • Trim and heel correction
  • Remote viewing via the internet
Tank Gauging System

Trip Amplifiers

  • Permit control of liquid levels
  • Ideal for alarm actuation and pump control
  • 4-20mA input
  • Dual relay outputs
  • External power supply for sensor (24V DC)
  • DIN rail mounting provides quick and easy installation
  • Simple configuration via USB port
Trip Amplifiers


  • G¾" parallel thread (brass or stainless steel)
  • DN25 to DN80 flange (carbon steel or stainless steel)