ESAB Sentinel A50 Instructions For Use Manual

Auto Darkening

Welding Helmet

1

Professional

Quality

Welding Helmet

SAFETY WARNINGS - RE AD BEFORE USI NG

WARNING

Read & Understand All Instructions Before Using

Auto-Darkening welding helmets are designed to protect the eye and face from sparks, spatter
and harmful radiation under normal welding conditions. Auto-Darkening filter automatically
changes from light state to dark state when welding arc is struck, and it returns to the light
state when welding stops.

The Auto-Darkening welding helmet comes assembled. But before it can be used, it
must be adjusted to fit the user properly. Check battery surfaces and contacts and
clean it if necessary. Verify if the battery is in good condition and installed
properly. Set up for delay time, sensitivity and shade number for your application.

The helmet should be stored in dry, cool and dark area and remember to remove
the battery before long-time storage.

WARNING

• This Auto-Darkening welding helmet is not suitable for laser welding.

• N ever place this helmet and Auto-Darkening filter on a hot surface.

• N ever open or tamper with the Auto-Darkening filter.

• This Auto-Darkening welding helmet will not protect against severe impact hazards.

• T his helmet will not protect against explosive devices or corrosive liquids.

• D o not make any modifications to either the filter or helmet, unless specified in this manual.

• Do not use replacement parts other than those specified in this manual. Unauthorized

modifications and replacement parts will void the warranty and expose the operator to the risk
of personal injury.

• Should this helmet not darken upon striking an arc, stop welding immediately and contact

your supervisor or your dealer.

• Do not immerse the filter in water.

• Do not use any solvents on the filter screen or helmet components.

• Use only at temperatures: - 5 °C ~ +55 °C (23 °F ~ 131 °F).

• Storing temperature: -20 °C ~ +70 °C (- 4 °F ~ 158 °F). The helmet should be stored in dry

cool and dark area, when not using it for a long time.

• Protect filter from contact with liquid and dirt.

• Clean the filter surface regularly; do not use strong cleaning solutions. Always keep the

sensors and solar cells clean using a clean lint-free tissue.

• Regularly replace the cracked / scratched / pitted front cover lens.

• The materials which may come into contact with the wearer’s skin can cause allergic

reactions in some circumstances.

• The ADF shall only be used in conjunction with the inner cover lens.

• The eye-protectors against high speed particles worn over standard ophthalmic

spectacles may transmit impacts, thus creating a hazard to the wearer.

• Toughened mineral filter oculars shall only be used in conjunction with a suitable backing

ocular.

• If the symbols F or B are not common to both the ocular and the frame then it is the lower

level which shall be assigned to the complete eye-protector.

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• If the impact letter followed by letter "T", you can use it for protection against high speed

particles at extremes of temperature. If the impact letter does not followed by letter "T", you
should only use the eye protector for protection against high speed particles at room
temperature.

WARNING

Severe personal injury could occur if the user fails to follow the above mentioned

warnings and/or fails to follow the operating instructions.

COMMON PROBLEMS AND REMEDI ES

• Irregular Darkening Dimming

Headgear has been set unevenly and there is an uneven distance from the eyes to the filter
lens (Reset the headgear to reduce the difference to the filter).

• Auto-Darkening filter does not darken or flickers

1. Front cover lens is soiled or damaged (Change the cover lens).

2. Sensors are soiled (Clean the sensors surface).

3. Welding current is too low (Adjust the sens itivity level to higher).

4. Check battery and verify they are in good condition and installed properly. Also, check
battery surfaces and contacts and clean if necessary. Please refer to the “BATTERY
INSTALLATION” on page 2.

• Slow response

Operating temperature is too low (Do not use at temperatures below -5 °C or 23 °F).

• Poor vision

1. Front / inside cover lens and / or the filter is soiled (Change lens).
There is insufficient ambient light.
Shade number is incorrectly set (Reset the shade number).
Check if removing the film on the front cover lens.

• Welding helmet slips

Headgear is not properly adjusted (Readjust the headgear).

WARNING

The user must stop using the auto-darkening welding helmet immediately if the

above-mentioned problems cannot be corrected. Contact the dealer.

INSTRUCTIONS FOR USE

WARNING! Before using the helmet for welding, ensure that you have read and understood the safety

instructions.

• BATTERY INSTALLATION

Slide the battery cover out of the external control case,
install the battery properly (see fig. 1), remember to
slide back the cover after battery installation.

• DIGITAL TOUCH SCREEN ACTIVATION

This auto darkening filter will automatically turn on
when an arc is struck.

Option 1: Short press the “DISPLAY” button (see
fig. 2a) to active the digital screen. After 5 seconds, it
will automatically turn to standby mode. Short press
“DISPLAY” button again will active the screen once

more and previous settings will remain.

fig. 1

Be sure Positive

(+) side of battery

faces up.

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fig. 3

Option 2: Long press “GRIND” button on external control case for 3 seconds can also active
the digital screen (see fig. 2b). After 5 seconds, the screen will automatically turn to standby
mode.

• BATTERY INDICATOR

This ADF cartridge is powered by solar cell and 2pc CR2450 lithium batteries. The symbol
“ ” shows the current state of the battery. The volume of batteries has four levels symbol
to appear (see fig. 3). When the symbol shows “ ”, please replace new batteries in time.

• OPTION SELECTED STATUS

There will be a yellow bolder on the option you select.

• SELECTING GRIND MODE

Option 1: Touch the “GRIND” on display screen to switch to grind mode (see fig. 4-A), touch
the “GRIND” again will return to previous mode.

Option 2: After weld / cutting work, long press “GRIND” button on external control case for 3
seconds (see fig. 2b), the auto darkening filter will switch to grind mode. After 5 seconds, the
screen will automatically turn to standby mode. Long press “GRIND” button for 3 seconds
again, it will return to previous mode.

In grind mode, the lens shade is fixed shade 4 (see fig. 4-B), and the sensitivity and delay
cannot be adjusted. The grind indicator will flash every 3 seconds under grind mode (see
fig. 2a). Before restarting weld / cutting work, ensure that the auto darkening filter return to
weld / cutting mode.

fig. 4

• VARIABLE SHADE CONTROL

Touch the “SHADE” on display screen to set shade number (see fig. 5a-A), touch “SHADE”
once more to switch between Shade 5-9 and Shade 9-13, touch “ ” and “ ” to select the
lens shade. Select the proper shade number for your welding / cutting process by referring to

fig. 2a

fig. 2b