ISO 9001:2015 Approved.

Our fully equipped ISO 9001:2015 approved laboratory offers a professional repair and calibration service. This work can also be carried out on site if downtime of your instruments has to be kept to a minimum.
    • Experienced, manufacturer approved, fully trained technicians.
    • Extensive range of Gas Detection, Ullage Temperature Interface, Temperature and Pressure instruments covered.
    • Competitive prices and fast turnaround.
    • First class customer support, providing technical guidance, service updates and quotations.
    • Large quantity of products and spares held at our Sheffield headquarters
    • 24-hour technical support (service@im-m.co.uk).
    • Manufacturer approved service centre of brands including MSA, Dräger, Crowcon and Honeywell.
    • Product safety inspections onsite and in house.

Ullage Temperature Interface (UTI’s)

IM&M’s in-house Engineers can provide advice on the most appropriate tank measuring system for your application, with a choice of leading brands such as:

  • Tanktech
  • Honeywell
  • MMC

We also offer competitively priced, comprehensive service on a wide range of ullage temperature and interface detectors (UTI’s) and sampling devices in our fully equipped laboratory, where all measurements are traceable to national standards.

IM&M can also provide competitive quotations of any parts or spares, for example storage barrel assemblies or replacement of tapes, measurements available include: 15M, 30M and 40M.

Click here to contact us for a quote

IM&M can offer calibration of the following:

  • Temperature calibrators
  • Ullage Temperature Interface (UTI)
  • Thermometers
  • Infrared temperature measurement
  • Pressure calibrators
  • Pressure gauges

Types of UTI’s include:

  • Restricted type portable oil / water interface detector
  • Gas tight type portable oil / water interface detector
  • Restricted type cargo liquid sampling device
  • Gas tight type cargo liquid sampling device
  • Inert gas sampling hose and adaptor
  • Pressure Gauge
  • Tank bottom liquid and sediment checking device

Key facts about UTI’s

    • UTI meters are portable liquid level gauges used to measure the amount of hydrocarbons and chemicals in a ship’s tank.
    • UTI devices are used to measure the temperature and oil-water interface on tanker vessels using a sensor probe attached to a measurement tape.
    • They comprise of a sensor probe, measurement tape, display unit and winding drum.
    • The measurement tape length can vary from 15m to 40m and temperature range of -40°C to 110°C depending on the manufacturer.
    • An annual shore service is advised to ensure that the UTI is in good order and has accurate measurements.
    • They can be OPEN (Restricted) or CLOSED type. Closed type offers a gas tight body to prevent hazardous gases escaping from the measurement tank.
    • Conversion fittings for UTI’s can be purchased to enable existing deck fittings to be used with a different UTI manufacturer.
    • All UTI’s have earth grounding capabilities for safety implications.

Suitable Applications

  • Chemical Tankers
  • Crude Oil Tankers
  • Clean Product Tankers
  • Offshore storage Tanks
  • Slop Tanks
  • Tank Farm Storage and Tanks Slop – Solvents Tanks Farms

Compliance Rules

Equipment TypeFunctionCompliance with
Closed type portable oil / water interface detector (UTI)Ullage level
Temperature Gauging
Oil – water interface level
SOLAS 1974, REGULATION 60, PARAGRAPH 7
IMO, MSC/Circ 551 (IBC BCH CODE)
IMO MARPOL 73 / 78 ANNEX I-CHAP II – REGULATION 15, (3) (b)
IMO RESOLUTION MEPC 5 (XIII) ANNEX 4
Cargo liquid sampling deviceLiquid samplingOCIMF, API STANDARD RESTRICTED WITH CLOSED SAMPLING OF LIQUID SAMPLING
Inert gas sampling hose and adapterOxygen and flammable gas concentration measuringIMO REQUIREMENT ON TANKER SAFETY AND POLLUTION PREVENTION, 1978-RESOLUTION A, 446(XI) 4,4,4
Pressure gaugeInert gas pressure gaugingIMO REQUIREMENT ON TANKER SAFETY AND POLLUTION PREVENTION 1978-RESOLUTION A,446(XI), 6,6 (b)
Tank bottom liquid and sediments checking deviceTank bottom dryness and sediment checkingIMO REQUIREMENT ON TANKER SAFETY AND POLLUTION PREVENTION, 1978 RESOLUTION A,446(XI) 4,4,4
Shut on / off valveVapour locking installation of portable tank measuring systemIMO MARPOL A973 / 78 ANNEX I, REGULATION 13b (3) SOLAS 1974, REGULATION 60 PARAGRAPH 7
(REQUIREMENT OF CLOSED ULLAGE SYSTEM)
IMO MARPOL73 / 78 ANNEX I-CHAP II-REGULATION 15, (3) (b) SOLAS REGULATION 62, PARAGRAPH 17