UV-9+Cure+Module+7269348_B+Manual.pdf - 第59页
4.10 UV Lamp Power Adjustment 4.10.1 Oven with Open Loop (Manual) Regulation At the startup o f the oven or aft er a lamp replacement, the emitted radiat ion of the UV lamp must be checked with a Po wer Puck ® or radiome…
4.9 External UV Shutters Adjustment
The openings at the entrance and exit of the UV-9 Cure Module can be adjusted to accommodate the
thicknesses of the boards being cured.
To adjust the external UV shutters:
1. Loosen the screws and slide the shutters up or down according to the component’s height
(Figure 4-9).
Figure 4-9 External UV Shutters
2. Tighten the screws after adjustment.
NOTE A sliding shutter automatically closes off the free space to the rear of the adjustable
conveyor rail.
4-8 Adjustments
4.10 UV Lamp Power Adjustment
4.10.1 Oven with Open Loop (Manual) Regulation
At the startup of the oven or after a lamp replacement, the emitted radiation of the UV lamp must be
checked with a Power Puck
® or radiometer with a valid calibration certificate.
To adjust the UV lamp power:
1. From the technical specification sheet of the UV product, determine the conveyor speed and
the UV power required for the UV product curing.
2. Disable the Process Time Control option. See 5.7.4.8 Process Time Control.
3. Set the output power and check with a Power Puck.
The output is entered in % is in the Control Screen.
Perform the measurements with a cold radiometer. An internal temperature increase of
the UV power recorder corrupts the measurement.
Item
Description
1 Set Output Power
2
Actual Delivered Power
3 Set Conveyor Speed
Figure 4-10 Setting the Output Power (Open Loop)
4. Perform curing tests.
5. When curing is correct, record the following parameters for future use:
The output power of the lamps.
The values in mJ given by the Power Puck.
6. Re-enable the Process Time Control option. See 5.7.4.8 Process Time Control.
7. Every 120 hours, check and adjust the output power accordingly.
8. Replace the UV lamp when the output power reaches 100%.
NOTE The accuracy of a Power Puck is + /- 10%, typically + /- 5%.
1
3
2
Adjustments 4-9
4.10.2 Oven with Close Loop Regulation (Option)
At start up of the oven or after a lamp replacement, the emitted radiation of the UV lamp must be checked
using a Power Puck or radiometer with a valid calibration certificate.
To adjust the UV lamp power:
1. From the technical specification sheet of the UV product, determine the conveyor speed and
the energy required for the UV product curing.
2. Enter the set point in mj/cm² and check with a Power Puck. If the difference is greater than
±5% between the measurement and the set point, a calibration of the close loop is required.
Perform the measurements with a cold radiometer. An internal temperature increase of
the UV power recorder corrupts the measurement.
Item
Description
1 Set Dose
2
Actual Delivered Power
3 Set Conveyor Speed
Figure 4-11 Setting the Output Power (Closed Loop)
3. Disable the Process Time Control option. See 5.7.4.8 Process Time Control.
4. Perform curing tests.
5. When the curing is correct, record the following parameters for future reference:
The output power of the lamps.
The values in mJ given by the Power Puck.
6. Re-enable the Process Time Control option. See 5.7.4.8 Process Time Control.
7. Every 120 hours, check and adjust the output power accordingly.
8. Replace the UV lamp when the output power reaches 100%.
NOTE The accuracy of a Power Puck is + /- 10%, typically + /- 5%.
4-10 Adjustments