TRI Electronics Gold Testers
- Special User Instructions
PLEASE READ CAREFULLY BEFORE
These special instructions
are the result of both TRI Electronics and Users'
experience with the Gold Tester and are offered
as additional information to new purchasers and
users of our products.
- The machine is not infallible and from time to
time, for a variety of reasons, you may get a
reading, high or low, which is inconsistent with
your understanding of the expected karatage.
ALWAYS make additional
readings in other locations on the jewelry with
special attention to cleaning and gel dispersal
to verify unusual readings.
- Very fine (thin) chains are very susceptible
to crushing by the dispenser. Always avoid
pressing the dispenser against the chain when
testing fine gold chains while assuring gel
contact. Two of three tests are recommended.
- Occasionally an air bubble will make its way
to the tip of the dispenser causing a low or not
gold reading. Retest when the result is suspect.
- If the tester has not been used recently, then
clean the tip with the plastic cleaner provided
by inserting the tip into the nozzle end of the
sensor to remove any dried or used gel in the
sensor tip. Accumulated dried gel will clog the
sensor tip and cause the gel to bypass the
plunger in the gel cartridge. If gel drops are
not dispensed by rotating the twist cap
immediately, clean the sensor using TRI
Electronics SC-10 Cleaner Accessory Kit
available from your Authorized Distributor or
TRI Electronics. To avoid clogging it is good
practice to clean the sensor each time the gel
cartridge is replaced using the SC- 10 Cleaner
CASTINGS - Solder joints and certain
spots on heavy castings may give erroneous
readings due to the solder composition or
non-homogeneous gold. Retest new area if result
- Many Italian gold chains and necklaces are
coated with a wax like material. If the readings
are suspect, clean area to be tested by heavy
erasing, or with a drop of nitric acid. If the
karat value increases with heavy erasure, you
may be sure the gold is coated. In all cases,
nitric acid has removed the coating.
- In heavily worn/used pieces, clean the testing
item thoroughly with the eraser or non-acetone
nail polish remover.
- Often a pin prick or small scratch on
suspected plated pieces is sufficient to allow
gel penetration to the base material.