9
PRECAUTIONS
1.
When testing the un-erased or un-filed portion, be sure that the test area has
been relatively unaffected by wear. Flat or thin Gold plated items will tend
to be “worn around the edges”. If it is difficult not to expose a worn area
when testing an un-erased or unfilled area, the user may wish to selectively
mask any area in question with fast drying lacquer. The reason for masking
a worn surface first is that you may obtain the lower Karat reading before
any erasing or filing has been accomplished. Therefore you may not get a
lower Karat value on your second test and not be able to determine that you
are testing Gold Plate.
2.
When testing the erased or filed portion, be sure that enough of the surface
area immersed in the liquid is erased or filed down to expose the suspected
“base metal” underneath.
3.
The same Electrolyte can be used for the two comparisons, (the un-erased
or un-filed area test and the erased or filed test).
MAINTENANCE OF M-18A9
No maintenance is required outside of cleaning after testing as described in Step
9 of the Operating Instructions. (page 5)
When the Low Battery indicator comes on, it is necessary to replace the batteries
before operating the unit. Simply remove the 4 small screws located on the rear
of the Gold Tester, under the black rubber screw covers. Carefully remove the
rear cover. Locate the three “AA” batteries being very careful to observe the
correct polarity as shown on the battery holder. Insert batteries according to the
original polarity; replace the rear cover, being careful not to pinch the wire leads
with the cover.
IF THE BATTERIES ARE INSTALLED INCORRECTY, THE
WARRANTY
IS
VOID
AND
DAMAGE
MAY
RESULT.
