Loctite UVALOC 400 User manual

20
,
®
Operating Manual
Bedienungsanleitung
UVALOC 400
97039
®

2
Contents
English.....................................................................................................................3 - 21
Deutsch.................................................................................................................. 22 - 40

3
Contents
1 Please observe the following ..................................................................................... 5
1.1 Emphasized Sections.................................................................................................... 5
1.2 For Your Safety.............................................................................................................. 6
1.3 Items Supplied............................................................................................................... 7
1.4 Field of Application (Intended Usage)............................................................................ 7
2 Description................................................................................................................... 8
2.1 Theory of Operation....................................................................................................... 8
2.2 UV Spectra .................................................................................................................. 10
2.3 Operating Elements and Connections......................................................................... 11
3 Technical Data ........................................................................................................... 13
4 Installation.................................................................................................................. 14
4.1 Environmental and Operating Conditions.................................................................... 14
4.2 Changing UV Bulb – Installation at Initial Start-up....................................................... 14
4.3 Connecting the Unit..................................................................................................... 15
4.4 Startup in Cold Conditions........................................................................................... 15
5 Adjustments for Curing............................................................................................. 16
5.1 Area of Optimum Radiation and Lighting Output......................................................... 16
5.2 Adjustments for Optimum Curing................................................................................. 17
5.3 Shutdown..................................................................................................................... 18
5.4 Returning to Operation ................................................................................................ 18
6 Protective Devices..................................................................................................... 18
6.1 Excess Temperature Protection .................................................................................. 18
6.2 UV Protection Curtain.................................................................................................. 19
6.3 UV Protection Box ....................................................................................................... 20

4
Contents
8 Maintenance................................................................................................................21
8 Troubleshooting.........................................................................................................22
9 Annex ..........................................................................................................................23
9.1 Accessories and Spare Parts.......................................................................................23
9.2 Declaration of Conformity.............................................................................................23
9.3 Warranty (excluding Germany) ....................................................................................24

5
1 Please observe the following
For safe and successful operation of the unit, read these instructions completely.
If the instructions are not observed, the manufacturer can assume no liability.
Be sure to retain this manual for future reference.
Refer to the technical data sheet for the LOCTITE-product used at www.loctite.com or
contact your local technical department.
1.1 Emphasized Sections
Warning! Refers to safety regulations and requires safety measures that protect the operator or
other persons from injury or danger to life.
Caution! Emphasizes what must be done or avoided so that the unit or other property is not
damaged.
Notice Gives recommendations for better handling or adjustment of the unit during operation as
well as for service activities.
The numbers printed in bold in the text refer to the corresponding position numbers in
the illustration on pages 9 and 10.
•The point emphasizes an instruction step.
– The dash emphasizes a list.
Instruction steps in the illustrations are
indicated with arrows.
When several instruction steps are
indicated in an illustration, the shading of
the arrow has the following meaning:
Black arrow = 1st step
Grey arrow = 2nd step
White arrow = 3rd step
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6
1 Please observe the following
1.2 For Your Safety
Warnings
Do not operate UV lamp without mounted filter glass.
Never operate system while lamp housing is open!
High voltage is generated at the ignition capacitor inside the lamp housing!
No modifications are permitted with the UVALOC System.
The unit may be repaired only by an authorized Loctite service representative
Only skilled persons should handle changing the UV bulb.
Do not touch the glass bulb of the UV lamp. Because of burned-in fingerprints the
life-time of the bulb will be reduced considerably.
Removing, bypassing or putting out of operation of the safety devices can result
in radiation damage to persons and damage to the unit and is therefore prohibited!
Damage to the power cord or the housing can result in contact with live
electrical parts.
Check the power cord, the lamphouse cord and the unit before each use.
If the power cord, the lamphouse cord or the unit is damaged, do not operate!
Replace a damaged power cord with a new one.
Disconnect power supply before opening the housing!
Do not touch the surface of the lamphouse or the silicone rubber mat at the work
area. Both get hot during operation (ca. 60°C / 140°F).
To avoid injury, do not touch the glass filter. This item can reach 280°C (536°F)
during operation. Allow to cool fully.
The UVALOC System generates intensive UV radiation that, with direct exposure,
can damage skin and eyes irreversible in a short time and over a longer period.
Avoid direct radiation of the skin and eyes under all circumstances!
Wear UV protective glasses and protective gloves in all cases!
Suitable measures are to be taken in order to protect persons in the vicinity of the
lamp against emerging UV-lights.
UV

7
1 Please observe the following
Hints in Handling the UVALOC 400
To protect your skin and your eyes wear
UV protective glasses and protective
gloves during
– operation and
– when placing and removing part from
under the lamp.
If the UV lamp is switched off, wait at least
5 minutes to let the UV lamp cool off
before switching on again.
If the lamp switches off, check the points
described in section 6.
1.3 Items Supplied
– UVALOC 400
– Power Cord
– UV protective glasses 97210
– Protective Gloves
– Protective Curtain 97302 with Mounting Parts
– Operating Manual
As a result of technical development, the illustrations and descriptions in this operating
manual can deviate from the actual unit delivered.
1.4 Field of Application (Intended Usage)
The UVALOC System is suitable for the UVA and visible light curing of Loctite UV
products. It can be used at workstations such as in shops and laboratories. It is used for
applications permitting manual loading.
The lamp’s emission spectrum (UVA) and radiant power capacity have been designed
specifically to meet the requirements of UV-curable Loctite adhesives.
The UVALOC System is a modular system. It includes a power unit with integrated
power switch, hour meter and ballast as well as a stand, a lamphouse with the bulb, the
reflector and the ignition capacitor/starter unit.
The work surface is covered by a special silicone rubber mat which resists UV
deterioration and chemical attack. Over time, the mat and also the protection curtain may
soften and need replacing.
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5 min
I/O
UV UV

8
2 Description
2.1 Theory of Operation
The UVALOC System is a UVA lamp system for curing UV adhesives. Exposure times
must be controlled with an external timer to ensure precise repeatability of curing results.
UV lamps also emit heat energy that is usually insignificant, however, if heat sensitive
parts are being processed, a sample part should be tested by exposing it to a cure cycle.
It may be necessary to move the part farther from the lamp and increase the cure time.
The UV power should be monitored regularly using a radiometer. Measurements should
be made using the same type of radiometer and preferably the exact same instrument, if
possible.
Super pressure mercury vapour lamps provide maximum UVA intensity. They are
produced worldwide in manual operations and are therefore subject to some variations.
Manufacturers typically specify a ±10% tolerance for radiation output.
A brand new lamp goes through a characteristic "warm-up" period. After the first
20 hours of operation reaches the intensity level of 100%. Till 500 hours the UV output
may drop up to ca. 8%. After 20 hours the lamp reaches long-term stability, allowing
operation for several hundreds hours with extremely low deterioration of performance.
Over the life time of about 1000 hours the UV output may drop in total ca. 20% based on
the intensity level of 100% mentioned above.
However, any drop during the warm-up phase is not really relevant for users, as the UV
output delivered at the end of lamp life is the parameter which actually counts. A realistic
user will design his adhesive bonding process in a way to make sure that 50% of the UV
output of a new lamp will be sufficient for his requirements.

9
2 Description
Based on an average power-on time of 8 hours per day, the bulb has an expected
operating life time of 1000 hours. UV bulb intensity deteriorates gradually with time. Bulb
life depends very much on length of operating intervals, as each ignition process wears
the lamp considerably.
Frequent on/off switching results in premature deterioration of the bulb.
Any contamination, such as fingerprints on the glass, which has not been removed will
bake to the envelope and result in premature deterioration of performance.
Fingerprints can be removed with a lint free wipe and pure alcohol.
Sometimes the envelope of the bulb can burst in rare occasions – especially if the lamp
is very old. The reasons could be etched fingerprints on the envelope.
Cooling air is drawn through ventilation slots in the bottom panel of the lamphouse, while
hot air is exhausted at the rear. Do not obstruct any of these air vents to make sure that
ventilation air circulates throughout the system. Obstruction of these openings or failure
of the fan will cause the unit to overheat. Whenever this happens, the lamp switches off,
see section 6.
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10
2 Description
2.2 UV Spectra
Avoid direct radiation of the skin and eyes under all circumstances!
The ultraviolet spectrum is divided into three sections:
UVA 315 nm – 380 nm
UVB 280 nm – 315 nm
UVC 100 nm – 280 nm
UVA is a part of natural sunlight and it’s most visible effect on human tissue is the tan.
An overdose of UVA will cause a heat-erythema similar to visible light. Irradiation over a
longer period can evoke irreversible damages at the eyes.
UVB is more aggressive than UVA, and also a very small part of natural sunlight. It has
the same negative effects on human tissue as natural sunlight, the most common being
the UV-erythema (sunburn).
UVC is even more aggressive than UVB, it can cause severe tissue damage. The risk of
skin cancer is higher than at UVB.
The built-in filter glass 97303 absorbs UVB and UVC.
Diagram of the UV spectra of bulb 97246
UV range absorbed by
the UVB/UVC filter glass
250 300 350 400 450
Wave Length (nm)
0
UV Range 97039
UVC UVB UVA Visible Light