TRI Electronics Gold Tester GT-4000 User Instruction

The following step-by-step procedure must be followed to properly perform gold tests:
•
Remove stationary/rotary cap from sensor nozzle by turning the lower LIGHT-
COLORED barrel counter clockwise.
•
Remove the polyethylene cap on the gel cartridge and fully insert the rectangular feed-screw end into the appropriate slot of
the rotary cap. Reassemble the cap assembled and cartridge into the sensor body. (See diagram 1)
•
Turn the light-colored barrel clockwise until fully seated.
•
Turn the dark-colored barrel counter clockwise until the first drop of gel appears at the sensor nozzle.
•
Connect the black wire to the sensor plug outlet, the black and red wire connector to the display unit, and red wire to the
testing plate.
•
Turn the unit "ON". It will automatically be set to low karatage. If Hi Karatage Testing is desired, press the "HI/LOW KARAT"
switch to illuminate the "HI KARAT ON" light and refer to the Hi Karatage Testing section.
•
Select and clean with eraser a testing point on the object; obtain one drop of gel by turning the sensor rotary cap (dark
colored barrel) counter-clockwise until gel is dispersed from sensor end. Firmly press the sensor nozzle to the pre-selected
and cleaned testing point and press the "TEST" button. NOTE: use only a small amount of gel to test. (See diagram 2). It is
only necessary to wet gold surface at sensor tip.
After the test, there should be a small round wet spot on the tested sample.
USER'S INSTRUCTION

Low Karatage Testing (6-18 karat)