The OLE Tank Gauging System


  • Accuracy +/- 0.5% or better

  • Two (2) Year Warranty

  • 4-20 mA output +

  • Modbus as standard

  • Weatherproof IP65 enclosures

  • Suitable for any height / shape of Tank

  • Lower Maintenance Costs

  • Alarm Test Functions

  • Two button auto reset operation

  • Single power connection for multi-functions

  • Tank Gauging and Monitoring

High alarm provides 110 dB at 1 meter. This utilises one of the four Alarm outputs, and has a front panel acknowledge button. Test and Mute function supplied as factory standard . Additional flashing lights or control functions are optional, as are Bund and Leak and Water bottom alarms.

Power Supply 18-24 vdc Input : 1 x 4-20 mA (either new or existing measuring sensor)

Output: Modbus RS485 and either 1 x 4-20 mA mirror of input or 1 x 4-20 mA corrected output.(Suitable for most Building Management Systems BMS).

IP 65 weatherproof, zone 2 / safe area . For Eexia applications barriers and IS sensors are provided.

Display enclosure are RoHS & CE compliant.

Single or Multiple Tank Gauging for any liquid or solid. Any tank shape can be programmed in this system. Safe area or EexiaIIc, Atex Zone 0/1 can be accommodated. (Display must be in safe area)

Any 4-20 milliamp device can be used to measure the product. As standard OLE utilise pressure transmitters. Options of Ultrasonic, Radar, and Mag sensors are available.

DP sensors are offered for pressurised tanks, either intrusive for ambient liquids, or external for cryogenic applications.

The T4020 provides an RS485 Modbus connection into any suitable reader, or can be made into a remote gauge by the addition of an OLE T3100 GPRS web logger and e-mailer.


FREE Fuel Management SYSTEM DEMONSTRATION, Including a 30 day personal log in to access the web based demonstration site. Just call 01226 742 441

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Why not ask about our other products and services for a complete package including tank gauging, fuel tanks, fuel pumps and service contracts.