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
+

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.
+
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.
+

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

11
2 Description
2.3 Operating Elements and Connections
1Lamphouse with the bulb, the reflector and the ignition capacitor/starter unit.
2 Cooling Fan
3Connection Cord
4Height Adjustment with Locking Lever
5Power Connector with 2 Power Fuses, 5 A time-lag, glass type 5x20
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!
6 Power Switch, latching type
7Hour Meter, not resettable
8 Power Unit with Integrated Power Switch, Hour Meter and Ballast
9 Workpiece Rest with special Silicone Rubber Mat
230V50Hz
h
97039
UV
UVUV
1
6
7
8
9
23
4
5

12
2 Description
10 Louvers
11 Filter Glass Fixing Screw
12 UVB/UVC Filter Glass 97303
13 UV Bulb 400 W 97246
14 Reflector, parabolic shape to get an uniform curing area.
15 UV Protective Curtain 97302 with mounting parts
UVALOC 400
UV
UVUV
15
10 11 12 13 14

13
3 Technical Data
Power Supply: 230 V AC, 50 Hz
Power Consumption: Approx. 460 W,
Power Protection 2 x 5 A, time-lag
Glass tube, fine wire fuse 5 x 20 mm,
Warm-up Time of UV Lamp 3 min
Lamp Type 400 W high pressure metal vapor bulb, double
sided plug-type socket
Lamp Life Approx. 1000 hours
Intensity See Section 5.1
Dimensions (width x height x depth): 220 mm * 472 mm * ~ 300mm
8.7 inch * 18.6 inch * ~ 12 inch
Ambient Operating Temperature + 10 °C ... + 30 °C (+ 50 °F ... + 86 °F)
Storage Temperature - 10 °C ... + 60 °C (+ 50 °F ... + 140 °F)
Weight: ~ 11.5 kg
200 mm
8 inch
220 mm
8.7 inch
472 mm
18.6 inch
~ 300 mm
~ 12 inch
Verstellbereich
120 - 260 mm
Adjustable Range
4.8 - 10.2 inch
min. 200 mm
min. 8 inch
Raum f r Bel ftung
Space for Ventilation

14
4 Installation
4.1 Environmental and Operating Conditions
– The equipment should be installed in a dry, dust-free place.
– Be sure to install the equipment in a place permitting free access of cooling air to the
back of the lamphouse.
4.2 Changing UV Bulb – Installation at Initial Start-up
Disconnect power supply before mounting the 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.
•Wait until the UVALOC is cooled off.
•Remove the filter glass fixing screw 11
and the filter glass 12.
•Push the bulb 13 till stop.
•Carefully tip and remove it.
•Check bulb 13, filter glass 12 and
reflector 14 for contamination
(fingerprints, condensation of adhesive’s
vapor etc).
•If necessary, clean carefully with alcohol
and a lint-free cloth.
•Install in reverse order.
11

15
4 Installation
4.3 Connecting the Unit
Pay attention to a stabile power supply of
nominal 230 V AC and
minimum 220 V AC, 50 Hz.
•Connect connections cord 3and
supplied power cord.
4.4 Startup in Cold Conditions
•Press power button. Power button will illuminate.
•Wait approx. 3 minutes for warm-up of the UV-bulb to the operating temperature.
Then the system is ready for curing.

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5 Adjustments for Curing
– Surfaces to be cured should be positioned within the area of optimum radiation output
as close as possible to the bulb.
– Part holders should be made of materials with good temperature resistance (such as
aluminum) and not reflecting surface.
5.1 Area of Optimum Radiation and Lighting Output
The UV System 97039 is designed for uniform distribution of intensity.
The position of the reflector / lamp housing is adjustable up or down to control the
amount of UV light irradiated onto the part and product. Increasing the distance will result
in increased cure times and vice versa.
The position and exposure time required to complete the curing process must be initially
determined.
The intensity values shown in the illustration below are average values. The data are
meant as an assistance, in order to achieve the desired curing.
80 mm
3.2 inch
120 mm
4.8 inch
97039
Distance 50 mm
Intensity 115 mW/cm†
Distance 80 mm
Intensity 95 mW/cm†
Distance 120 mm
Intensity 70 mW/cm†
Distance 260 mm
Intensity 35 mW/cm†

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5 Adjustments for Curing
5.2 Adjustments for Optimum Curing
The amount of UV energy delivered to the part is controlled by the distance between the
bond area and the lamphouse and the time of exposure. The time required for curing can
be minimized by setting the bottom edge of the lamphouse 3 to 6 cm above the bond
area. Increasing the distance will result in increased cure times. The area of the part to
be cured should be centered underneath the lamphouse / lamp assembly.
As guidance the information in the datasheet can be used.
For adjustments of optimal curing use the following steps.
•Look at the datasheet where you find the exposure time of the adhesive used and the
necessary intensity.
•Adjust the distance to the area of
highest intensity with the height
adjustment and locking lever 4.
•Start exposure according to the
datasheet.
If the result is not satisfying try new
exposures with different heights and
times.
Distance
see Section 5.2
97039

18
5 Adjustments for Curing
5.3 Shutdown
•Push power switch 6.
5.4 Returning to Operation
•Push power switch 6, see Section 4.4.
Before immediate restarting wait 5 min. to let the UV lamp cool off.
6 Protective Devices
6.1 Excess Temperature Protection
The lamp housing is provided with a
temperature switch for monitoring
temperature inside the housing.
•Disconnect power cord.
•Open housing of the lamphouse.
Pay attention to the yellow/green
earth cable!
•Press reset button of the temperature
switch.
•Close the housing and fix it with the
screws.
If temperature protection is actuated, check louvers and fan in the lamphouse.
+

19
6 Protective Devices
The UVALOC System generates intensive UV radiation that, with direct exposure,
can damage skin and eyes in a short time.
Avoid direct radiation of the skin and eyes under all circumstances!
Wear UV protective glasses and protective gloves in all cases!
6.2 UV Protection Curtain
To protect people, who work at the UVALOC 400, against UV radiation, the supplied
UV protection curtain has to be mounted. This does not relieve of the obligation to use
UV protective glasses and protective gloves.
•Wipe off the talcum powder of the above
section of both curtains (section where
the holes are).
•Position the two curtain parts one above
the other that the right of the two holes
is free in each case.
•Compress the curtains.
So they are to be mounted more easily.
•Remove the four lower screws from the housing of the lamphouse.
•Take both parts of the curtain.
•Start putting around the curtain parts at
the left rear corner (Start) of the
lamphouse.
•Mount the screw to each hole through
the curtain. Turn the screws only to
approx. 2 mm.
•Go further till the last free hole of the
curtain lies congruently one above the
first one.
•Fix the end of the curtain with the first
screw.
UV
Start
Start

20
6 Protective Devices
•Carefully provide fixing tool postpone.
•Completely fasten fixing tool and curtain
with the four screws to the lamphouse.
6.3 UV Protection Box
The UV protection box, order code no. 97300, has to be ordered separately. It is not
included in the standard delivery volume.
The UV protection box may be used only, if enough space is free for ventilation above
the box. The minimum is 400 mm/16”.
During operation of the UV system the walls of the box can become very hot!
•Disconnect power cord.
•Place the protection box over the unit.
•Connect power cord to the plug at the
rear of the unit.