Calibration & Measurement (2022)

Electrical Calibration

Electronic testing equipment is an essential component of all aspects of industry these days. To achieve the requirements or accuracy, a wide variety of different devices have been developed to suit every application. They include temperature probes, insulation testers, frequency counters, shunts, ammeters, RCD testers, soldering equipment, ohm meters, power supplies, millivolt meters, decade resistance boxes, electrostatic testers, meggers, signal generators, holiday detectors, mat-resistance testers, LCR testers, loop-impedance meters, earth resistance testers etc. Each of these instruments have been built to withstand daily use however they are fragile and should never been handled roughly. Even with normal wear and tear they will become inaccurate and require re-calibration.


  • Fluke
  • Kikusui
  • Hioki Tektronics
  • Amprobe
  • Programma
  • Beamex
  • Megger
  • Seaward
  • Kyoritsu
  • Extech
  • Spy Holiday
  • Altek
  • Seba Dynatronic
  • SMC
  • Detector
  • Martel
  • PCWI
  • Druck
  • Gw Instek
  • Yokogawa
  • Lutron
  • Elcometer
  • Sanwa
  • Wavetek
Pressure Calibration

Analogues pressure gauges uses a Bourdon Tube to transmit the applied pressure to the needle mechanism. However they sometimes indicate a slightly lower pressure when going up in pressure than when falling – this is called hysteresis. Some analogue pressure gauges are liquid filled (Glycerin) – this helps to lessen the impact on the mechanism when the gauges are subject to frequently large variations in applied pressure.

Digital pressure gauges generally use a strain gauge to convey an electrical signal to the read-out. Pressure gauges should not be subjected to impact such as being dropped as the Bourdon mechanism and strain gauge mechanisms are easily damaged or become inaccurate.

Differential pressure gauges measures the difference of 2 input pressures, while vacuum gauges measures negative pressure and is a removal of atmospheric pressure.

Pressure measuring devices is widely used in all industries, ranging from Oil and Gas, Marine, General industries, Pharmaceutical,Process industries, Research laboratories, Military and etc.


  • Capri
  • Ashcroft
  • Maximator
  • SKF
  • Scotts
  • Yamamoto Keiki
  • Jaeger
  • SMC
  • Wika
  • Stewarts – USA
  • Nuova Fima
  • Dewit
  • Kisco
  • Mc Daniel
  • USG
  • Tecsis
  • Baumer
  • Winters
  • Hiroshima
  • Enerpac
  • 3D Instruments
  • Palmer
  • NLB Corp
  • Haskel
  • Vario
  • CMC
  • Tempress
  • Budenberg
  • Ametek
  • CEJN
  • NKS
  • Crystal
  • Heise
  • Tronair
  • Keller
  • Jofra
Volumetric Calibration

Volumetric devices are used in the industry to deliver accurate amount of fluids to ensure the accuracy is maintained in the process.The devices applications are extensively used in chemical,pharmaceutical,research and development,laboratories, food/beverage industries and etc.

The devices types are pipette, burette, flask, measuring cylinder, syringe , dispenser and etc.

Regular maintenance and handling are key areas for extending the life span of the devices.

(Video) Calibration In Measurement | Basic Concept | Electrical And Electronics Measurement

The main objective of volumetric calibration in a quality system is to ensure that measurements are made with the intended accuracy.


  • Mettler Toledo
  • Transferpette
  • Vistalab
  • Matrix
  • Socorex
  • Capp
  • Brand
  • Gilson
  • Eppendorf Research
  • Thermofisher
  • Rainin
Biomedical Calibration

Having your clinical equipment tested and calibrated reduces maintenance costs, downtime and greatly improves efficiency, allowing medical devices to work more reliably and at a minimal increase to costs.Biomedical equipments include blood pressure monitor, pulse oximeters,patient simulators, electrical safety analyzers,elctrosurgical analyzers, SPO2 Analyzers, Infusion pumps, NIBP analyzers and etc.Clinical instruments are built to withstand daily use however they are fragile and with normal wear and tear they will become inaccurate and require re-calibration.should never been handled roughly. Even with normal wear and tear they will become inaccurate and require re-calibration.


  • Fluke
  • Siemens
  • Biotek
  • Dale
  • BC Biomedical
  • Metron
  • Omron
  • Pronk Technologies
  • Somatics
  • Datrend
  • Marquette
  • Associated Research
  • DNI Naveda
  • Rigel
  • GE
  • Baxter
Vibration and Sound Calibration

Vibration instruments play a vital role as it was designed to, and measure accurately the true ground vibration , general vibration, vibration on machineries, building structures and etc.Sound Level instruments on the other hand are used to measure the environment noise, noise at work, and etc.

There are varies type of vibration and sound level measuring devices to handle each and every application. They are vibration meters,analyzers, accelerometers, seismographs and sound level meters, acoustic calibrators, microphones, pistonphones respectively.

Users need to know the userability and the sensitivity of the equipment to ensure regular calibration.


  • AI
  • Quest Tech
  • Rion
  • Time
  • Balmac, INC
  • Zonehain
  • Mastech
  • Tes
  • Blue Gizmo
  • Showa Sokk
  • Wilson Walpert
  • Extech
  • Lutron
  • SPM
  • Lutron
  • Castle
  • BK Precisions
Gas Detection Calibration

Gas detector is a device which detects the presence of various gases within an area, usually as a part of safety system.Gas detector can be used to detect combustible, flammable and toxic gases and oxygen depletion.Common gases that are detected and calibrated are CO2, O2, LEL, H2S, CO and etc.They are commonly used in Marine, Oil and Gas , Pharmaceutical, Process Industry, Petrochemical and etc.Each of these instruments have been built to withstand daily use.However, they are fragile and should never be handled roughly. Due to the nature of the application it is recommended to be calibrated preferably six monthly or maximum on a yearly basis.


  • Crowcon
  • Toka Seiki
  • Biosystem
(Video) Calibration of measuring instruments
  • Riken Seiki
  • RKI
  • 3M
  • Industrial Scientific
  • Toxi Peo
  • Drager
  • BW
Torque Calibration

A Torque wrench is an extremely helpful and very often vitally accurate piece of equipment for any skilled workman, engineer or contractor which allows the user to accurately measure the static torque applied to a nut, bolt or fastener.

The accuracy of a Torque wrench is vital for the correct application of tightening/ torque being applied to a nut, bolt or fastener.Undertightening can and will lead to insufficient thread loading marking the tightened object unsecure while over tightening will stretch the nut or bolt beyond its ability to recover causing possible weakening and premature failure.

This is best achieved through regular calibration by technicians who are specialists in the field. There are varies type of torque measuring devices to handle each and every application. They are setting torque wrench, dial torque digital torque wrench, torque meter, torque tester and analyzer, torque multiplier and etc.Torque tools should be regularly verified as physical shocks can cause a drift in the measurement.



  • Norbar
  • Enerpac
  • Proto
  • Britool
  • Elora
  • CDI
  • Britool
  • Dynastop
  • CAT
  • Promax
  • Tecnogi
  • Snap-On
  • Facom
  • Kanon
  • Gedore
  • Beta
  • Armstrong
Photometry and Radiometery

A photometer is defined as an instrument for measurement of visible light. Luminance and illuminance meters are the most common photometers and are easily available as turnkey systems.

Their purpose is to measure the illumination level in the varies industry and provide the solution for significantly increasing the efficiency of its lighting system.

A radiometer is a device for measure the intensity of radiant energy. Radiometer are extensively used in material testing, research, laboratory testing, manufacturing and etc.

Both the photometers and radiometers should be cleaned and aligned annually so maintain the high level of accuracy required for the purpose.


  • Tes
  • Amprobe
  • Gould-Bass
  • EIT
  • Lutron
  • Sentry
  • Unitest Beha
  • Testo
  • Krisbow
  • Spectroline
  • Showa Sokk
  • Kyoritsu
  • Lutron
  • Sew
  • RS
  • Blak-Ray
  • Extech
  • UVA
RPM Calibration

A RPM measuring device is used to verify over speed, under speed, zero speed applications. RPM measuring device can be used for various types of equipment in a number of settings, such as conveyors, windmills, rotary feeders, grinders, dryers cooling equipment, elevators and etc. They are commonly used in power plants, chemical plants, marine , automotive plants, food /beverage and many others. RPM Meters should be regularly verified as it involves application that require safe range of rotational speeds.


  • Amprobe
  • Ono Sokki
  • Unitest
(Video) M1 Caliber Measuring Tool Calibration Procedure - REEKON Tools
  • Unitest Beha
  • Line Seiki
  • Yokogawa
  • Lutron
  • Cummins
  • Compact
  • Beha
  • Extech
Liquid Flow Calibration

Flow meters are devices that measure the amount of liquid that passes through them. Some flow meters measure flow as the amount of fluid passing through the flow meter during a time period (such as 100 liters per minute).Other flow meters measure the totalized amount of fluid that has passed through the flow meter (such as 100 liters). Volumetric flow meters directly measure the volume of fluid (Q) passing through the flow meter. The only flow meter technology that measures volume directly is the positive displacement flow meter. There are varies type of flow meters to handle each and every application. They are positive displacement, paddle wheel, coriolis mass, magnetic, variable area, vane style, vortex and etc. Flow meters should be regularly verified as it involves application that require accurate volume transferred for the process.


  • Omega
  • Siemens
  • GE Panametrics
  • GE
  • VAR Instruments
  • Omega
  • CMC
  • E & H
  • Flexim
  • OVAL Corporation
  • Erdco
  • Cole-Parmer
  • Tokico Technology
  • Emerson
Force Calibration

Force instruments easily integrate into many applications across numerous industrial fields.The instruments are commonly used in aerospace, medical, marine , automation and etc.Therefore, it is important that they are verified and calibrated for repeated measurements.

There are varies type of force instruments to handle each and every application. They are strain gauges, load cells, dynamometers, load gauges, force gauges, push pull gauges and etc.

Due to the physical nature of the devices , it is recommended that the devices to be periodically maintained and calibrated.


  • Intercomp
  • Imada
  • Algol
  • HBM
  • Mecmesin
  • JCM
  • Chatillon
  • Shimpo
  • Nata
  • Sentron
  • Sauter
  • Extech
  • CAP
  • Aikoh
  • Ametek
  • Telemetry
HYDROMETRY Calibration

A Hydrometer is an instrument used to measure the specific gravity ( or relative density) of liquids; that is , the ratio of the density of the liquid to the density of water. Hydrometers are specifically used in research laboratories, water treatment plants, chemical plants,oil testing, breweries, alcohol plant and etc. Modern hydrometers usually measure specific gravity but differenr scales are used in certain industries:

Ex. API gravity, Baume scale, Brix,Plato scale and etc.
Regular maintenance from cleaning to dusting , in addition to periodical calibration will extend the life of the devices.


  • Brannan
  • Zeal
  • Tetso
  • Chrome
  • T & A UK
  • ASTM
Mass & Weighing Calibration
(Video) AS Biology - How to calibrate a microscope

Mass sets are classified in the order of E2, E1, F1 and F2 and etc. It is crucial that the mass are calibrated periodically to ensure that the weighing devices calibrated are accurate .Accuracy will greatly improve the efficiency and provide cost effective solution to the industry.

Many factors cause weighing balances to give inaccurate or erratic readings. We will assume that your weighing balance is electronic as there are very few mechanical balances in use these days.

Ensuring the weighing devices are free from vibration, air currents, solid mounted, accurate levelling,temperature gradient are factors affecting the errors in measurements.

Regular maintenance from cleaning to dusting , in addition to periodical calibration will extend the life of the weighing devices.


  • Rinstrum
  • Lakeshore
  • Ishida
  • Jig & Tools
  • AND
  • Digi
  • Yamato
  • Shinko
  • Ohaus
  • Presica
  • Extech
  • MDC
  • Sartorius
  • Mettler Toledo
  • Shimadzu
  • Troemner
Magnetisim Calibration

Magnetism measuring devices are used for measurement of magnetization of a magnetic material like a ferromagnet, or to measure the strength and, in many cases , the direction of the magnetic field at a point in space. They are widely used for measuring the Earth’s magnetic field and in natural case used as metal detectors.

Magnetism devices have a very diverse range of applications, including locating objects such as submarines to research laboratories, Military operations, Oil and Gas drilling, mineral exploration, mobile telephones and etc.

They are of course many types of magnetism devices from magnetometer, gauss meter,tesla meter, magnetic field meter and etc.

The devices should be regularly verified as it involves application that require the device to be sensitive and accurate.


  • MTI
  • R.B.Annis
  • Hirst
  • HGM
  • FW Bell
  • Flexim
  • Alphalab
  • Teist
  • Lakeshore
  • Kanetec
  • Diverse
  • Magnaflux
On-Site and Mobile Calibration

Caltek provide On-Site calibration services of a wide range of Accredited parameters throughout Singapore and the Asia Pacific region.

Realizing the commercial and cost benefits of our clients the On-site calibration services cover the major site requirements for aerospace, automotive,biomedical,construction and engineering, marine offshore, process industries, oil and gas and other related industries.

We have special mobile teams who are capable of executing a wide selection of calibrations at your premise professionally and with as little downtime as possible.

We offer on-site calibration services where we feel it is possible to deliver a high quality service at a reasonable price.


  • Electrical calibration
  • Dimensional calibration
  • Humidity calibration
  • Pressure calibration
  • Gas Flow Calibration
  • Hardness calibration
  • Force calibration
  • Weighing Balance calibration
  • Water and Oil Flow calibration
(Video) Why Calibrate? What is calibration? - Test and Measurement Equipment (1 of 7)


What is the importance of measurement and calibration? ›

Calibration is important because it helps ensure accurate measurements, and accurate measurements are foundational to the quality, safety and innovation of most products and services we use and rely on every day.

What is the purpose of calibration? ›

The primary significance of calibration is that it maintains accuracy, standardization and repeatability in measurements, assuring reliable benchmarks and results. Without regular calibration, equipment can fall out of spec, provide inaccurate measurements and threaten quality, safety and equipment longevity.

What is calibration and example? ›

A person typically performs a calibration to determine the error or verify the accuracy of the DUT's unknown value. As a basic example, you could perform a calibration by measuring the temperature of a DUT thermometer in water at the known boiling point (212 degrees Fahrenheit) to learn the error of the thermometer.

What is the principle of calibration? ›

16 December 2020 Blog. Calibration Principles: Calibration is the activity of checking, by comparison with a standard, the accuracy of a measuring instrument of any type. It may also include adjustment of the instrument to bring it into alignment with the standard.

What tools are used for calibration? ›

  • Bench Multimeters.
  • Bench Multimeters.
  • Deadweight Testers. Pressure Calibrators. Handheld Pressure Calibrators.
  • Pressure Calibrators. Handheld Pressure Calibrators. Deadweight Testers.
  • Service and Support.
  • All Calibration Instruments.

What are the steps of calibration? ›

In general, the following steps are part of the calibration work:
  1. Entry check: Check the instrument for defects and the like. ...
  2. Perform calibration. ...
  3. If the instrument falls outside the tolerances, you can possibly adjust the instrument, so that it falls within the specifications again. ...
  4. Document the calibration results.

What do you mean measurement? ›

Measurement is the quantification of attributes of an object or event, which can be used to compare with other objects or events. In other words, measurement is a process of determining how large or small a physical quantity is as compared to a basic reference quantity of the same kind.

What is calibration test? ›

Calibration Test System

Calibration verifies the readings of a measurement instrument to ensure they fall within predetermined specifications. This improves the accuracy of a measurement device and ensures consistent measurements in testing applications.

What is calibration methods? ›

The calibration process for an analytical method involves measuring the signal produced by an analyte of interest in two or more standards (at least one blank and one non-zero standard) containing known quantities of the analyte.

What is accuracy in calibration? ›

Accuracy (A) is defined for the purposes here as the percent difference between the measured mean volume and the intended volume. Accuracy is what is adjusted when an instrument is calibrated.

What is a calibration factor? ›

Calibration Factor: A measure of the

chromatographic. response of a target analyte relative to the mass injected.

How many types of calibration is there? ›

Generally speaking there are two types of Calibration procedure. These are most commonly known as a 'Traceable Calibration Certificate' and a 'UKAS Calibration certificate'.

What are calibration methods? ›

Calibration or standardization determines the relationship between the analytical response from an instrument and the analyte concentration. This relationship allows then to determine the concentration of the analyte in an unknown sample.

What is the first stage of calibration AI? ›

The first step is to take all predictions and group them into bins. We are going to group them by the probability estimation that the model made.

What is secondary calibration? ›

(b) Secondary calibration

As per this procedure, a device that has been calibrated by primary calibration is used as a secondary standard for further calibration of other devices of lesser accuracy. A turbine type flow meter is used as a secondary standard to calibrate other flow devices.


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