Site Calibration Services – Professional Traceability & Testing
MWS offer a range of site calibration services, carried out by our dedicated service division covering the United Kingdom. We ensure customers have everything they need to comply with internal and external audits across their entire install base.
A common fear we see is Quality Managers and Technical Managers fearing audits, our service standards and after service support is unparalleled, putting your mind at ease when it comes to traceable calibrations.
Simplified Site Calibration Services for Your Diverse Instrument Fleet
Our range of calibration services for clients in the Food, Pharmaceutical and Chemical industries provides a one stop shop for all your metrological needs.
One Provider for All Your Site Calibration Services – Choose MWS with Confidence
Please find a detailed list of the types of assets that we can provide traceable calibration for, additionally, if you require other assets not listed please contact us.
Weighing Equipment Calibration |
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Industrial Scale CalibrationOn-site weighing scale calibration services and preventative maintenance is delivered by our skilled field engineers. Standards to ISO 9001 and ISO 17025 (UKAS) accredited procedures. |
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Dynamic CheckweighersMWS provides production-aware dynamic checkweigher calibration for high-speed environments. We validate accuracy at line speed (not just static checks) and confirming timing, configuration, and performance across the working range |
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Laboratory BalancesLaboratory balance calibration to support regulated environments, covering UKAS ISO 17025 (Accredited Laboratory No. 9617) and ISO 9001 traceable routes, plus IQ/OQ/PQ support where required. |
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Process Weighing & Load CellsTraceable load cell calibration for vessels, silos and process weighing systems using signal injection or force calibration techniques. Further testing available with additional assurance of PLC/HMI output verification and syncronisation. |
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Axle Weigh PadsMWS calibrates portable weigh pads using dedicated 10-tonne force rigs and ISO 17025 certified reference load cells. Now providing full UKAS traceability and VCA-compliant documentation where required. |
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WeighbridgesOn-site weighbridge calibration to ISO 9001:2015 standards, helping keep inbound/outbound vehicle weighing accurate and compliant. Testing available up to 50t using a specialised weighbridge test unit vehicle. Re-verifications and Trade Approvals following repairs possible due to our Module D approval from the UK Metrology Board. |
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Asset Calibration Types |
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HumidityCalibration of humidity probes to support reliable monitoring in production and controlled environments. Assets such as digital and analog Hygrometers, Environmental Chambers, Dew Point Analysers and Humidity Data Loggers can be tested. |
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MagnetsWe provide Gauss calibration services for magnetic testing equipment including magnetic rods and sieve magnets, essential tools in food safety and quality assurance applications. Our recommendation is that gauss meters and probes be calibrated at least once a year. |
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Metal DetectorsKeep your inspection system performing to specification with metal detector calibration services. We verify operation against the manufacturer’s parameters with traceable test sticks, and issue a calibration certificate on completion for compliance and quality requirements. During the test we also check rejections, sensors, belt speeds and general condition of the head. |
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PressureWe calibrate a wide range of pressure measurement equipment from -0.95 to 100 bar g. This includes analogue and digital pressure gauges, vacuum gauges, switches, transmitters, and controllers, as well as pressure-related safety and test devices like relief valves, leak testers, and burst testers. |
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pH and ConductivityConductivity meter calibration services typically involves rinsing the probe, immersing it in reference solutions with known conductivity, adjusting the instrument to match each standard, rinsing between solutions to prevent cross-contamination, and completing a final verification check using a separate standard. |
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Salt AnalysersSalt analyser calibration is essential for maintaining accurate, reliable measurements. By comparing readings against known standards, you can correct for sensor drift, temperature effects, and normal wear over time, thus reducing the risk of costly errors and helping protect consistent product quality. |
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TemperatureWe handle simulation and calibration of PT100/PT1000 sensors and thermistors, thermocouples (type K, J, N, T, R, S), and a range of devices such as fridges, freezers, fryers, autoclaves, and storage chambers. Temperature mapping services are also available for ovens and other controlled environments. |
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MWS Site Locations
Our Site Calibration Services teams have decades of experience in the industry and operate out of both the Head Office in Leicester and the Northeast Service Centre located in County Durham.
This means we can travel nationwide to carry out maintenance and calibration of all types of products. Calibration and services available on equipment from Analytical Laboratory Balances and Microbalances through to Weighbridges, Silos and Process Weighing Vessels, as well as non-weighing products such as pressure, temperature, humidity, and more.
Traceable Documentation
All calibrations are supplied with PDF downloadable certificates located on our client portal. You receive as-found/as-left certification in, with certificates stored in the portal for fast retrieval 24/7/365.
Our accreditations, associations, insurances and memberships can all be found on our website on our dedicated Accreditations page.
UKAS or ISO 9001 Traceable Services?
We have a helpful guide on weighing scale calibration types, this blog post will help you understand whether you need UKAS or ISO 9001 traceable certification, both options are available by MWS but it is important to establish which level you require.
Contact Us
If you’re looking for a dependable calibration partner who understands your industry and equipment inside out, get in touch with the team at MWS today.


















