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The user-friendly computer and easy
to understand prompting style menu approach has been designed to make the
training, set-up and operation short and simple. The only necessary information
is the resistance range of the part and the temperature at which the bond coat
will activate. Everything else is automatically measured and calculated.
There are no meters or scopes
for the operator to interpret. All decisions relating to the acceptability,
current, bonding time and temperature of the part are made automatically. To
begin the bonding process you simply select the temperature cut-off limit at
which the part will bond. The operator than loads the part into the
tester and closes the safety cover. At the end of a successful bond cycle, the
part can be removed from the tooling.
The test results are displayed on-screen. (See
Illustration below) The graphical screen displays actual resistance
and temperature as the winding is being heated, elapsed bonding time, a graph of
temperature/resistance vs. time, the temperature and resistance cutoff points,
the voltage and current being applied, and the real-time temperature from
sensor, if installed. Test results will be held, on-screen, until the operator
opens the safety slide cover. The entire software program has a clear and
precise fault messaging system.
The operator may change from one
part to another by simply selecting a new part number from the stored parts
within the system. The limits that were established for the part
are also retained, which eliminates the need for re-entering limits every time
the part is run.
Production counts can be viewed on screen at any
time through-out the production run.
An uninterruptible power supply (UPS) protects
the computer from power failure. If there is a power failure, the UPS will
switch to battery mode, sound a audible alarm, shutdown the bonding software,
shutdown Windows and finally shutdown the computer. This assures that the
computer will be shutdown properly even in the event of a power failure.
The plug in modular layout make circuit
troubleshooting easy. Access to the inside components is through the rear door
and a lower front panel. The cabinet is interlocked for the operator’s
protection.
The built in calibration box is located inside
of the cabinet and is easily accessible from the rear door. Calibration of the
resistance and constant current test instrumentation is simple and the
instructions are easy to follow.

| 1. Active
test station and index. |
7.
Elapsed bonding time. |
| 2. Part
information for selected part index. |
8.
Sends displayed graph to a printer. |
| 3.
Resistance & cutoff point. |
9.
Real-time temperature from sensor. |
| 4.
Temperature & cutoff point. |
10.
Reject counts. |
| 5.
Emergency Stop button. |
11.
Production
counts. |
| 6.
Voltage & current being applied. |
12.
Status banner. |

Graph
displays the temperature and resistance of the coil under bond in relation to
the elapsed time. The resistance
plot is an orange line and the temperature plot is the tan filled area.
If a dwell time is set, two black lines will appear to indicate the
beginning and the end of the dwell time. After
the bond process is completed, the cursor can be dragged along the resistance
plot to display the resistance and temperature for any point during the bond
process.
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