B&K Precision 1688B - Manual - Manual (Page 35)

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Figure 15 - Overload Protection
To reset this warning, switch off the unit and remove all connected devices. Switch
the unit back on again and double check with caution. If the problem persists, please
contact B&K Precision.
6.4 Fuse Replacement
If the fuse blows, the CV or CC indicators will not light and the power supply will not
operate. The fuse should not normally open unless a problem has developed in the
unit. Try to determine and correct the cause of the blown fuse, then replace only
with a fuse of the correct rating as listed below. The fuse is located on the rear panel
(see Figure 2). Pull fuse compartment out with a flathead screwdriver and replace
fuse in holder.
Line Voltage Fuse Type
100 – 240 VAC 6 A/250 V 20mm standard glass tube fast blow
Table 6 - Fuse Table