optrel neo p550, Quick Start Manual

Page: 11 / 44

11
Introduction
A welding helmet is a type of headgear used when performing certain types of welding to protect the eyes,
face and neck from flash burn, ultraviolet light, sparks, infrared light, and heat. The helmet consists of
several parts (see spare parts list). An automatic welding filter combines a passive UV and a passive IR
filter with an active filter, the luminous transmittance of which varies in the visible region of the spectrum,
depending on the irradiance from the welding arc. The luminous transmittance of the automatic welding
filter has an initial high value (light state). After the welding arc strikes and within a defined switching time,
the luminous transmittance of the filter changes to a low value (dark state).
Safety instructions
Please read the user instructions before using the helmet. Check that the front cover lens, the head
band and the shade cartridge have been correctly fitted. The welding helmet must not be used if faults
cannot be remedied.
Warnings & safety 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.
Würth 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. The helmet does not replace a safety helmet. Depending on the model, the helmet
can be combined with a protective helmet.The helmet can affect the field of view due to constructive
specifications (no view on the side without turning the head) and may affect a color perception due to the
light transmission of the auto darkening filter. As a result, signal lights or warning indicators may not be
seen. Further there is an impact hazard due to a larger contour (head with helmet on). The helmet also
reduces the audio and heat perception .
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
The warranty conditions can be found in the instructions from the national sales organisation. Please
contact your dealer for further information concerning this matter.
The warranty only applies to material and manufacturing defects. In the event of damage caused by
improper use, unauthorised intervention or use for a purpose that is not intended by the manufacturer, the
warranty and liability will be null and void. Likewise, liability and the warranty are no longer valid if spare
parts other than original spare parts are used.
Expected Lifetime
The welding helmet has no expiration date. The product can be used as long as no visible or invisible
damage or functional problems occur.
Usage (see envelope)
1. Head band. Please adjust the upper adjusting strap (p.4 No.1) to your head size. Depress ratchet
knob (p.4 No.2) and rotate until the head band sits firmly yet comfortably.
2. Eye distance and helmet inclination. The distance between the cartridge and the eyes is adjusted
by releasing the locking knobs (p.4-5 No.2). Adjust to the same extent at both sides without jamming.
Then retighten the locking knobs. The helmet inclination can be adjusted using the rotary knob (p.5
No.3).
3. Shade level. The shade level can be selected between 9 and 13 by rotating the shade level knob
(p.8).
4. Sensitivity. The level of sensitivity to ambient light can be adjusted using the sensitivity knob (p.8).
The middle position corresponds to the recommended sensitivity setting in a standard situation.
5. Opening delay. The opening delay knob (p.8) allows the opening delay to be set continously from
dark to light. It is adjustable within a range of 0,05 to 1,0 seconds. The middle position corresponds
to the recommended delay in a standard situation.
Cleaning and disinfection
The shade cartridge and the front cover lens must be cleaned with a soft cloth at regular intervals. No
strong cleaning agents, solvents, alcohol or cleaning agents containing scouring agent must be used.
Scratched or damaged lenses must be replaced.
Storage
The welding helmet must be stored at room temperature and with low air humidity. Storing the helmet in
the original packaging will increase the service life of the batteries.
Replacing the front cover lens (see p.4-5 No.2)
1. Hold the wing of the front cover lens
2. Push the lens against the opposite side of the holding frame
3. Remove the lens sidewards
4. Hold the wing of the new front cover lens
5. Push the lens against the opposite side of the holding frame
6. Insert the lens into the holder
Replacing the batteries (see p.5 No. 4)
The shade cartridge has replaceable lithium button cell batteries, type CR2032. The batteries must be
replaced when the LED on the cartridge f lashes in red.
1. Carefully remove battery cover
2. Remove batteries and dispose of in accordance with the national regulations for special waste
3. Use type CR2032 batteries as depicted
4. Carefully remount battery cover
If the shade cartridge does not darken when the welding arc is ignited, please check battery polarity. To
check whether the batteries still have sufficient power, hold the shade cartridge against a bright lamp. If the
red LED flashes, the batteries are empty and must be replaced immediately. If the shade cartridge does not
operate correctly in spite of correct battery replacement, it must be declared unusable and must be replaced.
Removing / installing the shade cartridge (see p. 6)
1. R emove potentiometer knob as depicted and undo nut
2. Release cartridge retaining spring as shown
3. Carefully tip out the cartridge
The shade cartridge is installed in the reverse order.
Troubleshooting
Shade cartridge does not darken
→ Adjust sensitivity
→ Clean sensors and front cover lens
→ Check flow of light to the sensors
→ Replace batteries
Shade cartridge flickers
→ Adjust sensitivity
→ Replace batteries
Poor vision
→ Clean front cover lens and shade cartridge
→ Adapt shade level to welding procedure
→ Increase amount of ambient light
Weldinghelmet slipping
→ Readjust / tighten head band
Specifications
(Right reserved to make technical changes)
Shade level 4 (bright mode)
9 – 13 (dark mode)
UV/IR protection Maximum protection in light and dark modes
Switching time from light to dark 0.1 ms (23°C / 73°F)
0.1 ms (55°C / 131°F)
Switching time from dark to light Infinitely variable: 0.05 - 1.0 s
Shade cartridge dimensions 90 x 110 x 9.5mm / 3.54 x 4.33 x 0.37"
Field of view dimensions 50 x 100mm / 1.97 x 3.94"
Power supply Solar cells, 2 pcs. replaceable 3V LI-batteries (CR2032)
Weight 495g (17.4oz)
Operating temperature -10 °C – 70 °C / 14 °F – 157 °F
Storage temperature -20°C – 70°C / -4°F – 157°F
Classification in accordance with EN379 Optical class = 1
Scattered light = 1
Homogeneity = 1
Viewing angle dependence = 2
Certifications CE, ANSI, compliance with CSA
Spare parts (see p. 6-7)
1. Helmet shell with head band and front cover lens (without cartridge)
2. Shade cartridge
3. Front cover lens
4. Potentiometer knob
5. Inside cover lens
6. Head band with attachment fittings
7. Sweat band
8. Comfort band
Declaration of conformity
See internet link adress at last page.
Legal information
This document complies with the requirements of EU regulation 2016/425 point 1.4 of Annex II.
Notified body
See last page for detailed information.
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