Earth Tester Calibration in Bangladesh
ION Engineering calibrates earth resistance testers against traceable resistance reference standards, accredited to ISO/IEC 17025:2017, for electrical safety and lightning protection testing teams.
What We Calibrate
3-Pole Earth Testers
Standard fall-of-potential earth resistance testers.
4-Pole Earth Testers
Four-terminal testers used for soil resistivity and earth grid testing.
Clamp-On Earth Testers
Clamp-type earth testers used without disconnecting the earth loop.
How We Calibrate an Earth Tester
The tester is checked against traceable known resistance references across its working range, with as-found and as-left readings recorded — the same rigor whether the instrument is used for routine earth pit checks or lightning protection system verification.
What’s included
- Multi-point calibration across the working range
- As-found and as-left readings, per point
- Stated measurement uncertainty
- QR-verifiable certificate
Earth Tester Calibration FAQs
Can this be combined with lightning protection testing?
Yes, earth tester calibration is often scheduled alongside our electrical safety testing service, which includes lightning protection checks.
Do you calibrate clamp-on earth testers differently?
Yes, clamp-on testers are checked using a suitable loop reference method appropriate to their non-contact measurement principle.
What measurement uncertainty do you report?
Uncertainty is stated on your certificate; our full accredited scope is published on our calibration capabilities page.
Is the certificate independently verifiable?
Yes, every certificate number can be checked using our online verification tool, with no login required.