Fluke Biomedical 05-433 - Manual (Page 13)

Range Switch Modification
Range Switch Modification
5
5-1
Section 5
Range Switch Modification
5.1 Range Switch Modification
It is possible to modify the range of the Primalert to be other than the 2.5/20 mR/h, which is standard for
the range switch LOW and HIGH positions. The modification may be easily made by the customer to
provide any of the following two range positions: 2.5, 5, 10, 20 or 40 mR/h.
If it is desired to change the range on the Primalert 10, simply remove the back cover by removing the
center screw. The back of the printed circuit board will then be exposed showing clearly two jumpers
attached to the 2.5 and 20 mR/h solder points. The 2.5 mR/h jumper corresponds to the range switch
HIGH position. Simply unsolder the upper end of the jumper wire and insert it in the position(s) desired.
Be sure to observe the warning notice in regard to soldering.