To Quote..(copy/ paste)
188.8.131.52 * Measuring conditions Measurements shall be performed using a measuring device able to deliver a current of at least 200 mA into 500 mΩ. The open circuit voltage shall not exceed 24 V. While low current tests (up to 1 A) are recommended, tests using up to 25 A may be used.
Why not continue to use the QA 90 ??