Your Trusted Megger Calibration Provider
Micro Precision provides ISO/IEC 17025:2017 accredited, NIST-traceable calibration and repair services for Megger insulation resistance testers, digital low resistance ohmmeters, and related electrical test instruments. Megger is a widely used manufacturer of insulation testing equipment, and its product line has also included instruments historically sold under the AVO, Biddle, and Multi-amp names.
Micro Precision’s network of 50+ accredited calibration labs and trained technicians support Megger calibration programs for aerospace, defense, medical, automotive, and manufacturing customers, issuing documented calibration certificates that confirm each instrument’s measurement accuracy.
Why Megger Calibration Matters
Insulation resistance testing verifies that electrical insulation on cables, motors, and equipment can safely withstand operating voltage, so a Megger instrument reading out of calibration can mask a developing insulation fault before it causes equipment failure or an electrical safety incident. ANSI/NCSL Z540.3 sets calibration program requirements for accredited laboratories, and ISO/IEC 17025:2017 defines the competence requirements for the laboratories performing that calibration.
Micro Precision’s ISO/IEC 17025:2017 accredited labs calibrate Megger insulation resistance testers and related electrical test instruments against NIST-traceable reference standards, documenting results on every calibration certificate issued under ANSI/NCSL Z540.3 program requirements.
Uncalibrated insulation testers create real safety and compliance exposure: a reading that overstates insulation resistance can pass equipment that should have failed, while equipment maintained under a documented calibration program supports audit readiness and regulatory compliance.
Ensure Accurate Megger Calibration
Micro Precision calibrates Megger equipment through a defined process: technicians receive and inspect each instrument, test it against a NIST-traceable reference standard across its working range, adjust it if it is found out of tolerance, issue a calibration certificate, and return the instrument ready for use.
Micro Precision provides both in-lab calibration at accredited facilities and on-site calibration services performed at a customer’s location, giving quality teams flexibility to schedule Megger calibration around production and maintenance schedules. Faster turnaround options are also available for customers with time-sensitive calibration needs.
Megger Equipment We Calibrate
Micro Precision calibrates a variety of Megger instruments, including:
- Insulation Resistance Testers (MIT Series)
- Digital Low Resistance Ohmmeters (DLRO Series)
- Multifunction Installation Testers (MFT Series)
- Portable Appliance Testers (PAT Series)
- Time Domain Reflectometers (TDR Series)
- Earth Ground Resistance Testers
- Cable Fault Locators
Micro Precision also calibrates a variety of other Megger models not listed here. For broader insulation-testing and megohmmeter coverage across additional brands, see Micro Precision’s insulation tester calibration services and megohmmeter calibration services pages.
Service Levels Offered
| Type of Service | Traceable | Traceable with Data | Accredited (ISO:IEC 17025:2017, Z540.3) |
|---|---|---|---|
| Calibrated to manufacturers specifications traceable to SI Units | |||
| ISO 9000 Compliant | |||
| Calibration certificates, data, maintained on secure web based tool (CDM) | |||
| Detailed calibration certificates and calibration stickers | |||
| Instrument adjustment (if found out of tolerance) | |||
| ANSI/NCSL Z540-1 compliant | |||
| Calibration Data | |||
| Logo from Accreditation body, Expanded Measurement Uncertainty | |||
| ANSI/NCSL Z540.3 compliant |
Micro Precision’s electrical calibration services extend to Megger’s full instrument lineup, and customers can browse all manufacturers we calibrate to compare coverage across other electrical test equipment brands.
Please complete our quick Megger equipment calibration & repair service request form, and a Micro Precision representative will reach out to you same-day during office hours, or within one business day after office hours. (Mon – Friday 8AM – 4PM PST)
Request a Quote
If you have any inquiries, recommendations, or simply wish to connect with us, we’d love to hear from you! Please don’t hesitate to reach out to us.
If you have a specific inquiry for an equipment you can start from Equipment Quote Request Form
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Frequently Asked Questions
Most Megger insulation testers are calibrated annually as a baseline, with more frequent intervals recommended for instruments used in safety-critical applications such as switchgear, transformer, or generator maintenance testing. Micro Precision can help establish an appropriate calibration schedule based on usage frequency and application criticality.
Micro Precision calibrates a variety of Agilent test and measurement instruments, including oscilloscopes, network analyzers, spectrum analyzers, signal generators, power meters, multimeters, logic analyzers, and data acquisition systems. Our labs support both electrical and RF measurement equipment used across aerospace, defense, medical, and manufacturing environments.
Yes. Micro Precision’s ISO/IEC 17025:2017 accredited laboratories calibrate Megger instruments under documented, NIST-traceable procedures, issuing accredited certificates for customers whose quality systems require that level of documentation.
Micro Precision offers both in-lab calibration at its accredited facilities and on-site calibration performed at a customer’s location for Megger equipment, so quality teams can choose the option that best fits their production and maintenance schedules.
Micro Precision calibrates a variety of Megger equipment, including insulation resistance testers, digital low resistance ohmmeters, multifunction installation testers, and portable appliance testers. Customers can request a quote specifying their exact Megger model to confirm calibration availability.
Megger’s product line has historically included instruments sold under the AVO, Biddle, and Multi-amp names. Micro Precision calibrates a variety of these legacy-branded instruments in addition to current Megger-branded models; customers should confirm their specific model when requesting a quote.
If a Megger instrument is found out of tolerance during calibration, Micro Precision’s technicians adjust it back into specification when possible and document both the as-found and as-left readings on the calibration certificate, so customers have a complete record of the instrument’s condition.