jbc PHB-KA Manual Del Usario página 6

Operation
Why convection? Perfect heat distribution
Convection technology offers a uniform heat distribution over the whole working area of the
Preheater. This gradual heating system reduces the risk of thermal stress on the PCB.
Profiles by Temperature
The usual way to run a profile is using the Thermocouple (TC) connected to the Control Input of the
console. JBC offers 3 predefined profiles (JBCset) and 20 profiles ready for you to personalize.
JBCset profiles
There are 3 profiles predefined by JBC: A, B and C. The difference between them is the number
of steps: 2, 3 or 4. The thicker your PCB is and the more layers it contains, the more steps are
needed to obtain a gradual warming.
These profiles are not modifiable but they can be used as a template to create your own profiles.
JBCset A
2 steps
PCB reference
FR4 1,6mm thick
specifications:
and 2 layers.
Profiles set using the low position of the PHB-SA Support (28 mm in height between the PCB and the heating area).
User profiles
You can create your own profiles from the JBCset profiles. On the work screen of the profile,
press the Enter button and choose the option Edit profile.
For repetitive jobs we recommend running profiles without the Thermocouple (TC). Once any
profile has been run to the end, the system has all the process data which you can save.
Once it is saved, you can run this profile without connecting the Thermocouple (TC). The heating
process will the same as long as the same working conditions are respected.
Power or Temperature Modes
The unit works at the selected power or temperature during the defined time. These parameters can
be modified from the work screen by pressing the Enter button and the Edit parameters menu.
To see the current temperature you must plug the Thermocouple (TC) into the Control connector.
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JBCset B
3 steps
FR4 1,6mm thick
and 6 layers.
JBCset C
4 steps
FR4 2,2mm thick
and 6 layers.