Further information in the sections below.

Often copied but never bettered - ITI is the original and still the best repair and calibration specialist in the UK for Test Equipment.
Our extensive range of in house facilities now include the recent acquisition of RECAL INSTRUMENT SERVICES adding further to our know how and expertise.
We carry a large stock of spares, circuit diagrams and service manuals enabling us to carry out most repairs within short lead times.
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Our temperature controlled laboratory is fully equipped with state of the art electrical & electronic calibration equipment.
All our certificates, to BS EN ISO/IEC 17025:2000 show full traceability to UKAS Laboratories and give actual results of each test.


Bespoke "Calibration Service Contracts" can be arranged as a very cost effective solution for companies who want annual / three year contracts at fixed calibration prices.
We work under the auspices of The British Standards Institution and our ISO 9001 Quality Management System is audited by the BSI.
A copy of our Scope Of Registration is available to view here.
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Our Scope Of Registration includes on site service and as such we can even carry out work at your premises to reduce downtime of your equipment.
Please read our FAQ's below which will give further information on the service we can offer.
Types Of Test Equipment We Repair / Service / Calibrate
Multimeters; Loop Testers; RCD Testers; Insulation Testers; Clamp Meters; Earth Testers; PAT Testers; Airflow Meters; Sound Level Meters; Humidity Meters; Thermometers; Pressure Meters; Decade Boxes; mV / mA Sources & Calibrators; Oscilloscopes; PSU’s; Low Resistance Ohmmeters; Light Meters; Data Loggers; Tachometers; Recorders; Controllers & Process Instrumentation.
Makes of Equipment we Repair / Service Calibrate
Megger; Chauvin Arnoux; Seaward; Kane; Fluke; Comark; Robin; Hawk; Meterman; Digitron; Foster; Metrix; Clare; Rustrak; Eurotherm; Lem; Radio Detection; Buckley; Biddle; Raytek; Time; T&R; Hameg; Kenwood; Bicotest; TTI; Martindale; Stienel; Cropico; AVO; Etc Etc








From a simple Pressure Gauge to a sophisticated piece of process control equipment, ITI have comprehensive repair and calibration facilities for such instruments as:
- Process recorders
- Controllers
- Panel Meters
- Pressure gauges
- Thermometers
- Control valves
- Actuators
- Metrology equipment
- Process calibrators
- Transmitters
- Switches
- Chemical seals
- Test equipment (see above)
- etc...
All work is carried out within ITI’s ISO9001 Scope Of Registration and you can be assured of the very best of workmanship by qualified engineers.
Particular specialities are: Test Equipment - see banner above.
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FILLED SYSTEMS
ITI have been manufacturing filled systems for many years. This expertise is now invaluable when it comes to repairing or altering other manufacturers equipment.
All types of temperature systems can be repaired, have capillary length altered and bulbs changed etc.
. Mercury In Steel
. Gas filled
. Vapour pressure
. Liquid expansion

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FLOW METERING
ITI have developed a state of the art award winning flow calibration test rig using the most accurate mass flow detection systems.
Traceable to National Standards, the system has a capacity to test and calibrate up to 4" meters.

- Mass Flow
- Volumetric Flow
- Totalised Flow
- Flow Rate
- VA Meters
Please ask for Steve Roberts in our service department. Tel + 44 (0)151 546 4943
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PROCESS INSTRUMENTATION

Our Contracts Department is available for the sourcing & supply of larger instrumentation packages both for UK and overseas.
Just e-mail or fax your specification, list or application and ITI will do the rest. Contact us here.
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Pressure Transmitters
Measurement of negative pressure, compound pressure and high pressure. Pressure measurement (relative or absolute): 0 ...+25 mbar to 0 ...+1800 bar
Types include: Flush Diaphragm Transmitters for measuring viscous, crystallising or pasty products Hygienic Connections and Built-in Chemical Seals Submersible Transmitters for level measurement
These transmitters can be fitted to our comprehensive range of Chemical Seals. You can even free issue your own transmitter to be fitted with one of our Chemical Seals.
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More robust and sophisticated transmitters for field mount applications in hazardous or non-hazardous areas are readily available from ITI. Again such transmitters can be fitted with our own range of Chemical Seals.
A particular speciality for ITI is the low fill volume Chemical Seals for fitting to a DP Transmitter for the measurement of liquid level.
We also offer a modification and repair service for customers’ existing transmitters whereby we can change capillary lengths, flanges and/or diaphragms.
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OTHER PROCESS INSTRUMENTATION AVAILABLE FROM ITI
Pressure switches can be fitted with our Chemical Seals

. Design & Commissioning
. Regular in situ calibration contracts
. Instrument Breakdowns
. Yearly Calibration Contracts for ISO9000

How do I get my instruments to you?
Collection and delivery via our own transport in the North West, or via authorised carrier outside the area.
Of course. All our Certificates are UKAS Traceable and show actual results. Pre-calibration results can be given for a small extra charge.
What if my instruments need a repair?
Minor repairs are included in our calibration service, in addition we have a free quotation service for repairs.
What if I forget to send in my instruments?
We will contact you every year with a reminder notice - this service is also free of charge.
How long will you have my instruments?
For calibration, the normal turnaround is 5-7 days. Repairs may take a little longer but we do have an extensive stock of spare parts and can usually complete most repairs with the same 5-7 days.
Do you give a warranty?
Yes, all repairs come with a 6 month warranty.
What sort of companies do you do business with?
We deal with everybody from Independent Electricians to large Multi-nationals such as:
Rolls-Royce, British Gas, Siemens, Heinz, Airbus, BOC, British Airways, Kraft Foods, British Sugar, BAA, BT etc.
What make of instruments do you repair and calibrate?
Avo, Megger, Record, Rosemount, Rototherm, Chessel, Foster, Robin, Claire, Seaward, Edgcumbe, Druck, Comark, Wavetek, Amprobe, Electrol, Fluke, Chauvin Arnoux, Biddle, Seba, T & R, Steinel, LEM Heme, Compact, Hameg, Philips, Hitachi, Thurlby Thandar, Radio Detection, C-Scope, Pulsar, Rustak, GEC, HGI, Cropico, Multi-Amp, Biocest, Hioki, Sifam, Sontay, Intek, Testo, Blackstar, Budenberg, Wika, Kent, ABB, Eurotherm and Maester to name but a few!!
What type of instruments do you do?
Our ISO9001 calibration service covers all types of 16th Edition test equipment and portable instrumentation - everything from a simple pressure gauge to an electronic mass flow meter. Insulation testers, Loop testers, PAT testers, Multi-meters, RCD testers, Clampmeters, Sound Level Meters, Tachometers, anemometers, Frequency generators, Loop calibrators, Humidity meters, Oscilloscopes, Torque wrenches, DTI's Micrometers, Calipers, scales, Pressure gauges, Vacuum gauges, Thermometers, Recorders, flowmeters, VA Meters, Ammeters and Volt meters.
In short, if it measures, we can calibrate it - if it doesn't, we can repair it.

ITI supply a wide range of accessories, parts and consumables:
- Electrical contacts
- Drag pointers
- Spare dials & glasses
- Test leads
- Washers
- Fittings
- Cable & wire
- No Loss connectors
- Instrument cases
- Flanges
- recorder pens
- Recorder charts
- Batteries
- Syphons
- Gauge cocks
- Valves etc

















