On-site calibration of high current ammeters, such as used in primary injection circuit breaker test sets, is a specialty of ETI.

calibrates and repairs virtually all types and brands of electrical test equipment: Circuit breaker testers Protective relay test sets Megohmmeters Insulation resistance testers Ground resistance testers Ac & Dc high voltage test sets - hipots Low resistance ohmmeters Oil test sets Capacitance & Dissipation Factor Test Equipment Transformer turns ratio test sets - TTR Vibration analyzers Winding analyzers Battery testers Motor test sets Power quality analyzers Recloser test sets Power Factor Test Equipment Transformer winding resistance testers Watthour meter test equipment DLRO - Micro-ohmmeters Power analyzers Yes, there are more!   AEMC Associated Research AVO Biddle Doble Engineering Dranetz - BMI EIL Instruments Extech Instruments Fluke HD Electric High Voltage Inc. Hipotronics HV Diagnostics HV Technologies Knopp Megger Multi-Amp Noram-SMC Omicron Phenix Technologies UEI Vanguard Instruments Von Corporation Watthour Engineering Co. We haven't listed them all!

electrical test equipment NIST traceable calibration services include: Detailed documentation Recall notification Annual maintenance programs Competitive pricing Quick turnaround ISO-9001 2000 registered company Quality assurance standards which are ANSI/NCSL Z540-1 compliant Compliance with 10CFR Part 50 Appendix B for nuclear applications Calibration equipment which is certified to NIST