Mold-Masters Fusion G2, User Manual

Page: 141 / 192

7.6 Heating Element Check
Measure the resistance between each pair of heater power wires at the mold
power connector.
Compare your reading with your General Assembly drawing.
Where:
R = V
2
P
R = resistance V = voltage P = power
7.7 Thermocouple Wiring Guidelines
CAUTION
Exceeding controller zone amperage will cause controller fuses to blow.
CAUTION
Thermocouples are Type “J” ungrounded and color coded to ASA standards
(White “+”/Red “- “).
The tip must not be truncated or squeezed and must touch the bottom of the
bore in order to measure the correct temperature.
Each heat source should have its own closed loop temperature control in
order to achieve accurate control. If there are not enough control zones, heat
sources that have the same wattage and affect the same environment, may
be grouped together.
7.8 Functional Test with a Temperature
Controller
The functions of the electrical equipment must be checked. This test is
carried out with an appropriate temperature control device.
• Monitor the initial heating of the system to minimize risk.
• Never start the heating with more than 40% of power.
• Stay a minimum of 5 minutes at 100°C (212°F) before increasing heat.
7.9 Retesting
If a portion of the electrical equipment is changed or modified, that portion
must be re-verified and re-tested, as appropriate.
7-4
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ELECTRICAL TESTING
FSG2 User Manual