Description
Chroma 63700 AC/DC Electronic Load Repair
The Chroma 63700 is a programmable AC & DC electronic load — unlike a DC-only load, it sinks AC current with programmable power factor and crest factor (plus DC), used to test AC sources, UPS systems, and inverters. Its character is AC-capable current sinking, so faults concentrate in the load stage, the AC/PF control, and measurement.
June Company repairs and calibrates the Chroma 63700 for AC-source, UPS, and inverter test teams.
Common Chroma 63700 problems we fix
- Will not sink rated AC or DC current. The 63700 load stage is repaired until it takes its full rated load in both.
- Power factor or crest factor not following the program. The AC loading control is repaired, then checked at set PF and CF values.
- A load mode not working. The faulty mode is traced and corrected.
- Readback disagreeing with a reference. Current, voltage and power measurement are recalibrated.
- Programming faults, or cooling problems that limit how long it can carry load.
FAQs
My 63700 won’t set power factor correctly — fixable? Yes. The AC-loading/PF control is repairable, then verified so it loads with the programmed PF and crest factor, alongside full-load recalibration and a NIST-traceable certificate.
Do you test AC and DC loading on the 63700? Yes. Each is checked against our standards before the load ships back.
Every repair includes NIST-traceable calibration and a 90-day parts-and-labor warranty. Email us or submit a service request.
Related Chroma repairs
We service 245 Chroma instruments. See all Electronic Load Repair.







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