1
Safety instructions
Please read the operating instructions before using the helmet. Check that the front
cover lens is fitted correctly. If it is not possible to eliminate errors, you must stop
using the cartridge.
Precautions & protective restrictions
During the welding process, heat and radiation are released, which can cause
damage to the eyes and skin. This product offers protection for the eyes and face.
When wearing the helmet, your eyes are always protected against ultraviolet and
infrared radiation, regardless of the shade level. To protect the rest of your body,
appropriate protective clothing must also be worn. In some circumstances, particles
and substances released by the welding process can trigger allergic skin reactions
in correspondingly predisposed persons. Materials that come into contact with skin
may cause allergic reactions to susceptible persons.
The protective welding helmet must only be used for welding and grinding and not
for other applications. Optrel assumes no liability when the welding helmet is used
for purposes other than intended or with disregard for the operating instructions.
The helmet is suitable for all established welding procedures,
excluding gas and
laser welding
.
Please note the recommended protection level in accordance with
EN169 on the cover.
Sleep mode
The cartridge has an automatic switch-off function, which increases the service
life. If no light falls on the solar cells for a period of approx. 15 minutes, the cartridge
automatically switches off. To reactivate the cartridge, the solar cells must be briefly
exposed to daylight.
If the cartridge cannot be reactivated or does not darken when the welding arc is
ignited, it must be regarded as non-functional and replaced.
Warranty & liability
Please see the instructions of the national sales organisation of Optrel for warranty
provisions. For further information in this respect, please contact your Optrel dealer.
Warranty is only granted for material and manufacturing defects. In the case of damage
caused by improper use, unauthorised intervention or through usage not intended by
the manufacturer, the warranty or liability are no longer valid. Likewise, liability and the
warranty are no longer valid if spare parts other than those sold by Optrel are used.
How to use (see cover)
1.
Head band.
Adjust the upper adjusting band (1) to the size of your head. Push in
the ratchet knob (2) and turn until the head band fits securely but without pressure.
2.
Distance from eyes and helmet angle.
By releasing the locking knobs (3), the
distance between the cartridge and the eyes can be adjusted. Adjust both sides
equally and do not tilt. Then tighten the locking knobs again. The helmet angle
can be adjusted using the rotary knob (4).
3.
Protection level.
Protection levels DIN 10 and DIN 11 can be selected using the
sliding switch (5).
4.
Sensor bar.
The fitted sensor bar (6) reduces the openings of the sensors and
therefore the influence of external light, e.g. reflections. The sensor bar can be
removed using your finger nail.
Cleaning
The cartridge and the front cover lens must be cleaned regularly using a soft cloth. No
strong cleaning agents, alcohol or abrasive cleaning agents may be used. Scratched
or damaged lenses must be replaced.
Storage
The welding helmet must be stored at room temperature and at low humidity.
Replacing the front cover lens
Push in one side clip (7) to release the front cover lens and then remove it. Attach the
new front cover lens to one side clip (8). Pull the front cover lens round to the second
side clip and clip in place. This action requires some pressure to ensure that the gasket
on the front cover lens has the desired effect.
Removing/installing the cartridge (see cover)
1. Unlock the cartridge retention spring as shown (9)
2. Carefully tilt the cartridge out (10)
The cartridge is installed in the reverse order.
Troubleshooting
Cartridge does not darken
→ Change the sensor bar position (6)
→ Clean the sensors or front cover lens
→ Check the light flow to the sensor
Poor vision
→ Clean the front cover lens or cartridge
→ Adjust the protection level to the welding procedure
→ Increase the ambient light
Welding helmet slips
→ Adjust/tighten the head band
Specifications
(We reserve the right to make technical changes)
Protection level
DIN4 (light mode)
DIN10 – DIN 11 (dark mode)
UV/IR protection
Maximum protection in light and dark modes
Switching time from light to dark
400μs (23°C / 73°F)
200μs (55°C / 131°F)
Switching time from dark to light
0.2 – 0.3s
Dimensions of cartridge
90 x 110 x 7mm / 3.55 x4.33 x 0.28“
Dimensions of field of vision
38 x 98mm / 1.50 x 3.86“
Power supply
Solar cells, no need to change batteries
Weight
460 g / 17.284 oz
Operating temperature
-10°C – 70°C / 14°F – 157°F
Storage temperature
-20°C – 80°C / -4°F – 176°F
Classification as per EN379
Optical class = 1
Light scatter = 1
Homogeneity = 1
Angle of vision dependency = 2
Standards
CE, ECS, ANSI, GOST-R, AS/NZS
Spare parts (see cover)
1. Helmet (without cartridge)
2. Cartridge incl. satellite
3. Front cover lens
4. Side clips
5. Inner protection lens
6. Head band with fasteners
7. Sweat band
9610.103.03 Optrel e640
English
9610.103.03 Optrel e640 INH.indd 1
03.12.10 10:04
