Calibration Services

Why Choose Our Calibration Service

Industry Leaders Nationwide for Professional Calibration Services

Zedflo has been a market leader in test and measurement equipment since 1982. In 2014 we established a service and repair laboratory, and in 2018 achieved NATA accreditation for compliance with ISO/IEC 17025—Calibration. Our quality and customer service policies focus on providing the very best service.

Zedflo proudly offers calibration services with uncertainty of measurement capabilities among the best in Australia. We have invested in high-performance equipment across our laboratory.
We constantly strive to give the best customer service, which clients have come to expect over our 40+ year history in test and measurement.

Our NATA accreditation is an independent testament to our attention to detail, commitment to working to international standards in quality and technical management and metrological traceability.

Calibration services
Calibration services

Our Accreditation

  • NATA Accredited Laboratory operating in accordance with ISO/IEC 17025
  • Authorised Metrel Service and Calibration Centre
  • Authorised Additel Service and Calibration Centre

Types of calibration services we perform

Multimeters and Clamp Meters

Including Process Meters, Insulation/Continuity DMMs

Multifunction installation testers

Familiar with all common models and brands

Portable appliance testers (PAT)

Process and Loop Calibrators

Loop impedance & RCD

Lab reference meters and calibrators

Up to 7.5 digit displays

Insulation Testers

Voltages up to 10kV

Micro-ohm / Ductor / resistance meters

Up to 100A testing signals

Earth Step/Touch Analysers

Power Quality Analysers

EV Charging Station Testers

Transformer Analysers (turns ratio meter)


Current Clamp Meter Calibration

Process Calibration

RCD Tester Calibration

Digital Pressure Gauges

Pressures up to 415MPa (60,000 psi)

Mechanical Pressure Gauges

Vacuum, pressure, compound and absolute ranges

Calibrators, Controllers, and modules

Capable of uncertainties as low as 0.009%

Transmitters and Transducers

With DC electrical outputs


DP/flow meters and Hydrostatic level gauges


Chart recorders

Analogue Pressure Gauges

Pressure Calibrator Calibration

Pressure Switch Calibration

Pressure Transmitter Calibration

Temperature Gauges

Thermometers and probes

Resistance Temperature Detector (RTD’s)


Temperature transmitters

Dry well calibrators

Infrared thermometer guns

Thermal imaging cameras

Ultrasonic clamp on flow meters

Our flow rig has 33mm, 60mm, and 89mm OD pipes so if your sensors suit any of these sizes we should be able calibrate it.

In house repair service

  • OEM backed and authorised service and repair agents for many instruments in our range.
  • That means less downtime in the event a fault or issue is found.


  • Our NATA accreditation scope has some of the best uncertainties in Australia.
  • Advice you can rely on, with 40+ years experience in the industry.

Fast & Easy

  • Standard turn around under 1 week.
  • Expediting options available (as quick as same business day).
  • Express freight options at great rates.

Why Calibrate?

The successful operation of any process depends on the accuracy of each instrument in the control loop. It is essential that sensors in a system are properly calibrated for the entire loop perform reliably. This requires suitable calibration methods to be used, trained personnel, and metrological traceability being maintained. Choosing the right calibration laboratory can be as important for lifetime accuracy and reliability of an instrument as selecting the right equipment in the first place.

Accredited Calibration:
Accredited calibration helps you objectively understand an instrument’s performance, while giving you peace of mind that the results can be trusted.

Zedflo’s NATA accredited services include:

  • A calibration certificate, bearing the NATA emblem
  • Reporting of results, both prior to and following adjustment if required
  • Free instrument adjustment to improve performance where possible
  • Method selection and statement of compliance following strict criteria


Detailed NATA Calibration Services

At Zedflo, we understand the critical role calibration services play in maintaining the precision and accuracy of your instruments. As a company, one of our goals is to provide a high-quality calibration service to our clientele. Calibration is not just a routine task; it’s a cornerstone for ensuring reliability and performance in various industries.

View our full accredited scope on the NATA website:

A basic summary of our NATA accredited scope:


We can calibrate virtually all pressure reading devices

  • Up to 415MPa / 60,000PSI
  • 0.009% Uncertainty capable for precision devices up to 105MPa (15,000PSI)
  • Excellent low pressure capability – 0.65Pa uncertainty on draught pressures
  • Barometers and absolute pressure transmitters with current, voltage or frequency outputs


DMMs, Meters, Calibrators

  • DC Voltage up to 1050V, from 5ppm uncertainty
  • DC Current up to 30A, from 20ppm uncertainty
  • AC Voltage and Current 10Hz to 100 kHz, from 0.02%
  • Resistance up to 10 GΩ, Capacitance up to 200 mF

HV Insulation and Continuity

  • Insulation Resistance up to 10GΩ, 10kV test voltage
  • MicroOhm Continuity from as low as 1μΩ at 100A test current

Frequency and Time

  • Frequency calibration up to 100 MHz on counters, meters, calibrators or testers.  From 5 μHz uncertainty
  • RCD Testers, trip time uncertainty from 0.3ms

Resistor Sets and Decade Boxes

  • Standard Resistors, Calibration Boxes,
    Insulation Test Boxes, Decade Boxes etc…
    From 10 μΩ to 10 GΩ
  • NATA Accredited Laboratory operating in accordance with ISO/IEC 17025
  • Authorised, OEM backed services
  • Fair and affordable rates
  • 120 day after repair warranty (terms and conditions apply)
  • Fast standard turnaround times, typically under 1 week
  • Expedited service options for same or next day turn around
  • Guarantee to offer professional, impartial advice for your repair or calibration with 40+ years experience in the industry

We have a few options you can choose from:

Complete one of the options from ‘How to organize a calibration?’

You can send us your instrument, or drop it into us during business hours

If urgent, let us know and we can offer an expedited service for an additional fee

Once the instrument arrives we will send you a formal quotation for your approval. (or seek approval in person)

You can contact us at any time for a status update

After your approval we will perform the quoted works.

Standard turn around is 1 week.

This will vary with work loads but we are often faster than that, calibrations are typically worked on in order of receival/approval

When completed we will send you an invoice for payment.

If you are on a ‘30 day trade account’ then we will process as per your PO or agreement.

After payment is cleared (or PO is processed for account customers), we will inform you that the goods can be collected, or if you have opted for shipping we will typically dispatch same or next business day.

You can also pay in store at time of collection.

Normal business hours

Monday to Friday, 8am to 4:30pm

We are closed on public holidays

Accepted payment methods
  • Direct bank transfer
  • Card payment over the phone (Mastercard & Visa only)
  • Eftpos payment in store (Mastercard & Visa only)

We typically have a standardized pricing structure for calibrations

  • Most of the time we can provide a quote/estimate even without seeing the instrument in person.
  • Some instruments may require an inspection prior to formally quoting
  • Be aware a quote is only an estimate, the quote may need a variance after we have inspected or even begun the calibration procedure, for example if we find damage or faults with the instrument that were not expected and not within the initial scope of the job.
  • We will contact you with a revised quote before proceeding further where necessary.

We have a minimum fee of $80 +GST, this applies as a minimum inspection fee and also a minimum calibration attempt fee for any instrument processed through our facility.

  • Instruments that fail a calibration are generally still chargeable up to the full quoted price, we may at our discretion charge a lesser fee depending how much time and effort was spent working on the instrument.
  • For failed instruments if possible we may be able to offer a repair or replacement
  • Some instruments may carry a larger minimum fee, for example in cases where we need to send the instrument to a 3rd party for assessment, in these cases before moving forward we will quote an elevated minimum fee to cover the associated freight costs and 3rd party assessment fees.

Typical internal flow of a calibration

Typically, the whole calibration process is completed within 1 week.

  • This does vary and depends on various factors, but more often than not we are actually quicker.
  • Your instrument will go through various stages during a typical calibration, we are efficient at moving it between various stages in the process but sometimes delays can happen, we will inform you if we expect any kind of delay.
  • Some calibrations may be sent to a 3rd party partner or supplier, in which case they will carry a longer than our standard turnaround time. We do, however, strive to provide the very best and accurate estimate of turnaround time at time of quoting.

For expedited ‘same day’ or ‘next day’ service, Zedflo is the best calibration service to look to!

We are always busy and do have a constant stream of work in our laboratory, instruments are usually worked on in the order they are received, and then in order of confirmed approval to proceed with quote, but for a fee your instrument can jump the queue when you require a fast turn around.

The fee will vary, and is subject to availability, but as a typical guide:

  • Next business day turn around add 30% to the normal fee
  • Same day (next on bench) turn around add 50% to the normal fee

Contact us today for more information about how we can help you with your instrument calibration needs.


Analogue Pressure Gauge
Digital Pressure Gauges
Pressure Transmitters & Transducers
Pressure Calibrators
Pressure Switch Setting


Clamp Meters
Installation Testers
RCD Testers
Insulation Testers
Loop Impedance
Earth Testers
Process Calibrators
Loop Calibrators

Turn around:

We know rapid turn around is important, we endeavour to repair or calibrate your equipment as quickly as possible, we advise a typical lead time of 7 days but we can often turn around calibrations next business day depending on our work load.

Other Calibrations:

We can calibrate various other instruments too, it doesn’t have to be Metrel or Additel – below is a current list of products we are capable of calibrating, if you have something not on this list, please make an enquiry.

Calibration services are essential across a broad spectrum of sectors. Each industry has unique requirements and standards, making specialised calibration services not just beneficial but often mandatory for compliance and quality assurance. We ensure your test and measurement equipment is up to industry standards. It’s crucial to choose the right calibration solution tailored to meet each industry’s unique requirements and standards.

Mining Industry

In the mining industry, precision and reliability are critical to ensure the safety and efficiency of operations. Calibration services play a vital role in maintaining the accuracy of instruments and test equipment used throughout the mining process, from exploration and extraction to processing and environmental monitoring. This includes the calibration of devices such as pressure transducers, flow meters, and scales that are crucial for handling materials accurately and safely.

Commonly calibrated instruments also include gas detectors and environmental monitoring equipment, which are essential for maintaining safe working conditions by monitoring the presence of hazardous gases and environmental pollutants. Additionally, the calibration of geotechnical instruments, such as inclinometers and strain gauges, helps in monitoring the structural integrity of mines and associated infrastructure, preventing accidents and ensuring operational stability.

Calibration in mining also extends to the equipment used in refining processes, where precise measurements are necessary for optimising the processing of minerals and metals. This ensures that operations are efficient, waste is minimised, and the impact on the environment is reduced. Overall, regular and precise calibration of mining equipment helps in achieving regulatory compliance, enhancing safety, and boosting the overall productivity of mining operations.

Renewable energy generation

In wind farms, solar farms, and power stations, numerous types of equipment require regular calibration to ensure optimal performance and safety. In wind farms, wind speed sensors, anemometers, and wind direction indicators must be calibrated to accurately measure environmental conditions and optimize turbine operation. Solar farms rely on calibrated photovoltaic cells, pyranometers, and solar trackers to precisely capture sunlight and maximize energy generation. Power stations, whether fossil fuel-based or renewable, require calibration of instruments such as pressure gauges, temperature sensors, flow meters, and control systems to maintain efficient and safe operation. Additionally, protective relays, transformers, and electrical meters need calibration to ensure grid stability and accurate billing. Power quality analysers are important diagnostic and maintenance tools that also require calibration.  Calibration of these critical components is essential for maximizing energy production, ensuring equipment longevity, and adhering to regulatory standards in the renewable energy and power generation sectors.

Mineral processing and production

In processing plants across various industries, calibration is imperative for maintaining precise control and ensuring the efficiency and safety of operations. Temperature sensors and controllers are fundamental for regulating heating and cooling processes, ensuring product quality and operational safety. Pressure gauges and transmitters are critical for monitoring vessel and pipeline pressures, essential for preventing overpressurization and ensuring the integrity of equipment. Electrical equipment, including voltage meters, current transformers, and power monitors, require calibration to guarantee accurate measurements for electrical systems’ efficiency and safety.  Regular calibration of these diverse instruments and equipment is essential for maintaining operational reliability, meeting regulatory requirements, and achieving desired product specifications in processing plants.

What Sets Us Apart

At Zedflo, what sets us apart is our commitment to precision, customer service, and adherence to the highest standards in the industry. Our expertise in providing Australian calibrating services is unmatched, with the ability to offer calibrations across Western Australia. Get your instrument calibration performed by our NATA accredited laboratory in Western Australia.

We are proud to offer National Association of Testing Authorities (NATA) accredited calibration services. NATA accreditation is recognised internationally and is a mark of quality and technical competence. Having this accreditation as an organisation ensures that we perform various types of testing, inspection, and calibration services, all to the highest quality.

NATA Accredited Pressure Calibration Services

We pride ourselves on offering comprehensive NATA accredited pressure calibration services, ensuring the highest standards of accuracy and reliability. Our state-of-the-art laboratory is equipped to handle a wide range of pressure devices including gauges, transducers, calibrators and recorders. By adhering to ISO 17025 and the National Association of Testing Authorities (NATA) rigorous standards, we provide our clients with confidence that their critical measurements are precise and traceable to national and international standards. Our expert technicians are dedicated to delivering exceptional service, enhancing system performance, and maintaining compliance with industry regulations.

NATA Accredited Electrical Calibration Services

Our NATA accredited electrical calibration services are designed to support the demanding needs of the industrial and commercial sectors. We understand the importance of precise electrical measurements and provide calibration services for a variety of electrical instruments such as multimeters, clamp meters, decade boxes, installation testers, meggers, ductors, power quality, and insulation testers. By maintaining NATA accreditation, we ensure that each calibration we perform is traceable and conforms to Australian and international standards, thereby helping our clients meet their quality requirements and ensure their equipment operates at optimal efficiency.

Traceable Calibration on Temperature

We also specialise in non-accredited traceable temperature calibration services, a critical aspect for any process requiring stringent temperature controls. Our calibration capabilities include a variety of temperature instruments like thermometers, thermocouples, and RTDs. With traceability to NATA standards, we guarantee that the calibration we provide aligns with globally recognised benchmarks. This not only aids in complying with quality assurance processes but also enhances equipment accuracy and repeatability across a range of industrial applications.

All services including repairs and calibrations are subject to our standard terms and conditions

Get in touch with us for your next calibration

Our comprehensive calibration services are indispensable for any industry seeking precision, safety, and compliance. Book your calibration today!

By offering a diverse range of calibration types, we cater to the unique needs of various measurement instruments. If you have equipment that needs calibration that we have not outlined above, please contact us for further information.

Our meticulous process calibration ensures the accuracy and consistency of your equipment, enhancing overall industrial operations. With our expert team and advanced methods, we align measurements with standards and elevate the quality and reliability of production processes. With our team and process, you can feel confident that your equipment will work more accurately and efficiently than ever before. Contact us to see what we can do for you.

Trust us to be your partner in maintaining the highest measurement accuracy and operational excellence standards. Contact us at Zedflo today for your next calibration.

Contact Us

Get in contact with us today to see how we can help. Please fill out the enquiry form below and we will get back to you as soon as possible.


Opening hours

Monday to Friday: 8am to 4:30pm
We are closed on public holidays

Address and contact information

Business Name / ABN

Process Control Instrumentation Pty Ltd T/A Zedflo Australia
ABN 58 120 609 814

Zedflo operates an ISO17025 NATA Accredited Calibration Lab.

You can view our NATA scope here

We are able to calibrate all popular and leading brands including Additel, Fluke, Druck, Beamex, Crystal, Transmation, Wika, Metrel, Megger, AEMC and many more