Gamry Instruments Reference 30k Booster, Operator'S Manual

Page: 27 / 55

Installation – Cal Cell Connections
27
1) Loosen the nuts on the Counter and Working terminals on the Cal side of the Test & Cal cell. The
black 13 mm nut-driver provided with your system fits these nuts.
2) Remove the nut and one of the two copper washers on each bolt.
3) Place the Working ring terminal (the one with the green wires) on the Working electrode bolt, labeled
Green . Replace the washer and nut. The ring terminal ends up sandwiched between two copper
washers.
4) Place the Counter ring terminal (the one with the red wires) on the Counter electrode bolt, labeled
Red . Replace the washer and nut. The ring terminal ends up sandwiched between two copper
washers.
5) Tighten the connections with the 13 mm nut driver.
6) Double check the colors: green wires on terminal labeled Green , and red wires on the terminal
labeled Red . Make sure your connections are to the Cal side of the fixture.
The other three connections to the test cell come from the Reference 3000 Sense Cable. They are the white
Reference, blue Working Sense and orange Counter Sense leads. They plug into the Test & Cal cell, in the jacks
labeled by color.
Caution:
Do not over-tighten the connections. We do not recommend tightening the
connections with a high-torque wrench such as a socket wrench. The supplied nut-driver prevents over-
tightening the terminals.
Caution:
The Cal Side of the Test & Cal cell is a 200 mΩ, ±1% tolerance resistor wired in
a 4-terminal manner. The resistor is only rated for 1 W of power dissipation. This side of the fixture
includes a 2 A fuse that keeps the resistor safe from over-current damage. Operator error can easily open
this fuse. If the system does not operate as described below when it is run using the
Cal Cell, have a service
technician check that the fuse is intact.