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Remove the fuse box.
Remove both fuses and insert two new fuses. These must be
identical and should correspond to the line voltage.
CTC-140:
115V, 2AT = 105014 / 230V, 1AT = 105007
CTC-320/650:
115V, 10AF = 60B302 / 230V, 5AF = 60B301
CTC-1200:
115V, 6.3AT = 60B313 / 230V, 3.15AT = 60B312
If the fuses blow immediately after you have replaced them,
the calibrator should be returned to the manufacturer for
service.
Slide the fuse box into place with the correct voltage turning
upwards.
Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176
