Heat - Cool Control - Brainchild BTC-2500 User Manual

5 5 Heat-Cool Control 5 5 Heat-Cool Control
An injection mold required to be controlled at 120 C to ensure a consistent An injection mold required to be controlled at 120 C to ensure a consistent
quality for the parts. An oil pipe is buried in the mold. Since plastics is injected quality for the parts. An oil pipe is buried in the mold. Since plastics is injected
at higher temperature ( e.g. 250 C ), the circulation oil needs to be cooled as at higher temperature ( e.g. 250 C ), the circulation oil needs to be cooled as
its temperature rises. Here is an example: its temperature rises. Here is an example:
Plastics
Freezer
4-20 mA 4-20 mA
OUT2
1
2
A1
88
Injection Mold Injection Mold
120 C 120 C
Oil Oil
Pump Pump
Oil Tank Oil Tank
RTD
OUT1
IN1
C
UM25001C
Figure 5.7 Figure 5.7
Heat-Cool Control Example Heat-Cool Control Example
Heater Heater
Supply Supply