Multimeter Accuracy and AD587 Performance

Having built a small, portable 10.000V reference using the Analog Devices AD587 reference chip, now is a good time to evaluate its performance with a bunch of multimeters.

However, I have a feeling that the AD587 with its 10.000V ±5mV @25ºC is going to be the better performer than some of the multimeters being tested. In today’s performance shootout, ranked in order of their pedigree we have:

  • Fluke 789 Processmeter
  • Fluke 12 Multimeter
  • Extech EX330
  • Pro-Tester 03-150K
10Vref_meters
Today’s contenders. From left to right; Fluke 789, Fluke 12, Extech EX330 and Pro-Test 03-150K.

Continue reading