LOKERMANN GRAND AIR HD User manual

GRAND AIR HD
USER MANUAL

INTRODUCTION
The auto-darkening helmet with improved High Definition Filter Optics, delivers a new
generation of face and eye protection. Advanced integrated technology, such as CD,
optoelectronics detection, solar power, and microelectronics are coordinated to produce
one of the safest, fastest and most reliable auto-darkening helmets available.
The auto-darkening helmet can not only efficiently protect operator’s eyes and face from
sparks, spatter, and harmful radiation under normal welding conditions, but also make both
hands free and strike arc accurately resulting in increased efficiency and improved quality
welds. It may be widely used for various welding, cutting, spraying and arc gouging, etc.
WARNINGS
This auto-darkening helmet is not suitable for "overhead" welding, laser welding or
oxyacetylene welding applications.
This helmet will not protect against explosive devices or corrosive liquids. Machine
guards or eye splash protection must be used when these hazards are presented.
Impact resistant, primary eye protection, spectacles or goggles that meet current ANSI
specifications must be worn at all times when using this welding helmet.
Avoid work positions that could expose unprotected areas of the body to spark, spatter,
direct and/or reflected radiation. Use adequate protection if exposure cannot be avoided.
Do not make any modifications to either the ADF cartridge or helmet, other than those
specified in this manual.
Do not use any replacement parts other than those specified in this manual.
Unauthorized modifications and replacement parts will void the warranty and expose the
user to the risk of personal injury.
Do not immerse this helmet in water because this model is not waterproof.
Do not use any solvents on any ADF or helmet components.
The recommended operating temperature range for this ADF cartridge is -10°C~65°C
(14°F~149°F). Do not use this device beyond these temperature limits.
Failure to follow these warnings and/or failure to follow all of the operating instructions could
result in severe personal injury.

SPECIFICATIONS
Specification of ADF
1.CE Classification 1/1/1/1
2.Real Vision Yes
3. CD Viewing area 100 x 60 mm (3.94" x 3.28")
4. ight State Shade DIN 4
5. Dark Variable Shades DIN 5-9 / 9-13
6. Switching time (light to dark) 0.08ms
7. Delay time (dark to light) Adjustable ( evel 1-5 for 0.1-0.9s)
8. Sensitivity Adjustable ( evel 1-5 for low-high)
9. Arc Sensors 4
10.grinding Function Yes
11. Cutting Function Yes,Shade 5~8 adjustable
12. Power Supply Solar and i-ion rechargeable battery
13.ADF Battery Operating time >300h
14.Charging time 3.5h
15.Charging Frequency >500
16. Operating Temperature -10°C~65°C (14°F~149°F)
17. Inside PC lens 103 x 63 x 1 mm
18. Outside PC lens 118 x 97 x 1 mm
19. Inner visor Clean Visor
20. Standards CE EN379, ANSI Z87.1, CSA Z94.3, AS/NZS
Specification of Remote
1.Display O ED
2.Power Supply i-ion rechargeable battery
3.ADF Battery Operating time >300h
4.Charging time 3.5h
5.Charging Frequency >500
Specification of Respirator S stem
Size
(Blower Assembly)
9-2/5 x 6-1/2 x 2-3/4 in. (240 x 165 x 70 mm)
Weight 2.4KG
Particle Filter 1*TH3 P R S
Air Flow Manufacturer minimum design flow rate: 165 /min
Nominal airflow :
evel 1: 170 /min
evel 2: 200 /min
evel 3: 230 /min
Noise evel Max 75dB
Operate Temperature 23 to 131 (-5 ~55 )℉ ℉ ℃ ℃
Storage temperature 14℉ to 131℉ (-10℃~55℃)

Battery Type Rechargeable i-ION 4400mAh
Expected Battery
Operation Time
evel 1>8h
evel 2>6h
evel 3>4h
Battery Charging Time 3.5 Hours
Battery ife 500 Charges
Run Time Dependent On Air Flow Rate and Filter oad.
CD Display Air flow level and data
Battery capacity
Filter status
Belt Size 35-2/5 x 51-2/5 in. (900mm to 1300mm)
OPERATION INSTRUCTION
BEFORE USE
-Check for light tightness and check the inside & outside protection lens are clean and that no
dirt is covering the sensors on the front of the auto-darkening-filter (ADF) cartridge.
-Make sure the protection films on both inside & outside protection lens are removed.
-Inspect all operating parts for signs of wear or damage. Any scratched, cracked, or pitted
parts should be replaced immediately.
This ADF is full controlled b a Remote control and connected with Bluetooth. All the
adjustment of the ADF is operated on Remote Control. ADF will change to the Function
mode ou set b the Remote Control.
LED FLASH EXPLANATION ON ADF
There are 3 ED on the ADF showing the working status of the ADF.
1. RUNNING(Green):
a. ED will flash once every 2 Sec while pairing with Remote Control
b. After succeed paired, ED will flash when ADF receives control signal from Remote
Control
2. GRINDING/CUT(Orange):
a. ED will flash when ADF work in Grind/Cutting mode
3. OWPOWER/CHARGING(Red/Green):
a. ED will become red when ADF out of power
b. ED will be green and will flashing while charging
c. ED will be green and normally on when charging finished

SCREEN ICON EXPLANATION ON REMOTE CONTROL
Picture 1 Picture 2
Picture 3 Picture 4
1
/
2
3 4
5
Battery status Connection
signal indication
Welding
indication
Shade range 5-9 Shade range 9-13
6 7 8
9 10
Sensitivity
indication:
1 (low) to
5(high)
Delay indication:
1 (short 0.1s) to
5 (long 0.9s)
Shade reading Cutting mode
indication
Grind mode
indication
MODE SETTING
ADF has 4 function modes: Welding mode (Shade range 5-9), Welding mode (Shade
range 9-13), grinding mode, Cut mode. At welding mode, there are 3 functions can be
adjusted: Sensitivity, Shade and Delay.
ong press the button() on the Remote Control for 2 Sec and release, the ADF mode will

be changed circularly during these 4 modes. CD will show the picture from 1 to 4
circulation.
At welding mode, short-press the button on the Remote Control less than 1 sec and
release, the function will be changed circularly during these 3 modes.
VARIABLE SHADE CONTROL
If the Shade is in the range of 5~9, clockwise rotate the button on the Remote Control,
Shade number will be increased; Or Anticlockwise rotate the button on the Remote
Control, Shade number will be reduced.
If the Shade is in the range of 9~13, clockwise rotate the button on the Remote Control,
Shade number will be increased; Or Anticlockwise rotate the button on the Remote
Control, Shade number will be reduced.
Note:
-Choose an optimum Shade number for the required welding process or application (see
Table 1).
-If this ADF does not darken when striking arc, stop welding immediately and contact our
representative.
SENSITIVITY CONTROL
The responsiveness to different light levels in various welding processes can be adjusted in
the range 1-5(from low to high). Sensitivity can only be adjusted at Welding Mode.
Short press the button () on the Remote control and select SENS and Clockwise rotate
the button on the Remote Control, Sensitivity will be increased; Or Anticlockwise rotate
the button on the Remote Control, Sensitivity will be reduced. After the Icon 6 mentioned
is displayed on the screen, number will be changed during 1 to 5.
Turn to 1 (low): The photo sensitivity changes to be lower.
- Suitable for high amperage welding and welding in bright light conditions (lamp light
or sun light).
Turn to 5 (high): The photo sensitivity changes to be higher.
- Suitable for low amperage welding and using in poor light conditions.
- Suitable for using with steady arc process such as TIG welding.
- Under normally use, a higher sensitivity setting is recommended.
DELAY CONTROL
The length of time delay for the ADF returns to light state after welding can be adjusted in the
range 1-5 (for 0.1~0.9s). The time delay is for protection of welder’s eyes from strong residual
rays after welding.
Short press the button () on the Remote control and select DE AY and Clockwise rotate
the button on the Remote Control, Delay time will be increased; Or Anticlockwise rotate
the button on the Remote Control, Delay time will be reduced. After the Icon 7 mentioned
is displayed on the screen, number will be changed during 1 to 5.
Turn to 1 (0.1s): The time the ADF lighten after welding to be shorter. The shortest
time is about 0.1s depending upon welding point temperature and shade set. This
setting is ideal for track welding or production welding with short welds.

Turn to 5 (0.9s): The time the ADF lighten after welding to be longer. The longest
time is about 0.9s depending upon welding point temperature and shade set. This
setting is ideal for welding at high amperage where there is an after-glow from the
weld.
GRINDING SELECTION
Select grinding mode by pressing the button on the Remote Control, Picture 3 mentioned
will show on the Remote Control and the orange light on ADF will flash.
Note: Do not weld in the grinding mode, the ADF will not darken.
CUTTING SELECTION
Select grinding mode by pressing the button on the Remote Control, Picture 4 will show
on the Remote Control and the orange light on ADF will flash.
Clockwise rotate the button on the Remote Control, Shade number will be increased; Or
Anticlockwise rotate the button on the Remote Control, Shade number will be reduced.
The Shade range at cutting mode is 5-8.
Note: Do not weld in the cutting mode.
BATTERY INDICATOR
Icon 1 mentioned indicates the Remote Control battery status. Charge the battery when it
is low, otherwise, the Remote Control will out of work.
The light on ADF become red, Charge the battery of ADF. Otherwise, switching time will
become slower and shade accuracy will be compromised.
POWER SUPPLY AND CHARGE BATTERY
The power of the auto-darkening helmet is provided by solar cells and rechargeable
lithium battery.
Charge battery with Micro-USB cable when battery power is low. (Pic 5 & Pic 6)
Picture5 Picture 6
REMOTE CONTROL PAIR WITH ADF
ADF and Remote Control is paired one to one when assembly on the helmet and does
not need to be paired again. Icon 2 mentioned will show .One Remote Control can
Micro USB Micro USB

only control one ADF which had been paired.
A new Remote Control can be paired with a new ADF. Put new ADF and new Remote
Control together. ong press the pair button on the ADF(Picture 7) more than 3 Sec by a
fine needle and release .Then long press the pair button on the Remote Control (Picture
8) more than 3 Sec and release by a fine needle .Running ED on ADF will flash once
every 2 sec and will stop flash when succeed paired .The Icon 2 mentioned will show
;If Icon 2 shows , it means fail paired ,and needs to be paired again
Picture 7 Picture 8
HEADGEAR ADJUSTMENTS
Because the shapes of man's heads vary from person to person, the work positions and the
observing angles are different. Operator may adjust the headband in 5 parameters:
1- Select eye level by Headband adjusting buttons (1).
2- Select view angle by Segmental positioning plate (2).
3- Adjust head size perimeter by pushing and turning
the Headband tightness adjusting knob (3).
4- Select eyes distance from ADF by adjusting
Headgear screws to 1 of the 5 slots on the Headgear
slider (4). Make sure both sides are equally
positioned for proper vision.
5- Select the height of the headgear by adjusting the Block washers(5) up or down on
the Block washer adjustment(6).
REPLACE INNER VISOR
The arge Inner Visor is a protection lens and must be replaced if broken, damaged or
covered with welding spatter to the extent that vision is impaired.
Flip up the outer cover.
Push the plugs inside the helmet up, see position 1. The Inner Visor will be released from
Pair Button
Pair Button

the helmet; pull the Inner Visor out. See position 2.
Insert the visor, it is necessary to locate the button into the
corresponding hole in the helmet, then
push the plugs inside the helmet
down and lock the visor
The user must always make sure the
Visor is fitted properly and is locked well
and there are no visible gaps.
REPLACE OUTER PROTECT LENS
The outer protect lens is a protection lens and must
be replaced if broken, damaged or covered with
welding spatter to the extent that vision is impaired.
Flip up the outer cover.
Unlock the ADF by pull the lock structure inside the
flip up cover, (position.1). Take the ADF out
(Position.2), replace a new outer protect lens. Insert
the ADF back to flip up cover, lock the ADF by push
the lock structure.
The user must always make sure the outer protect
lens is fitted properly and is locked well
REAL VISION
The auto-darkening helmet is a Real Vision welding helmet. With advanced Real Vision
technology, the users can weld with improved clarity due to new complex coating
technology, grinding with precision while in grinding mode and finally see the job
performance in the light state in the full spectrum of colors. There is no need to remove
the helmet to see clearly! Results are enhanced the weld quality, increased efficiency and
improved safety because the users can see more.

UNPACKING/ASSEMBLY
Check that correct number of components has been supplied, as in figure 1.
Check that the apparatus is complete, undamaged and correctly assembled.
Any damaged or defective parts must be replaced before use.
FIGURE 1
The package must include:
1. The air fed welding + welding hood
2.
The respiratory protection system (turbo unit + filter + waist belt)
3. ithium-ion battery
4. The tube, its anti-fire cloth and both end fittings
5. The shoulder harness
6. The air flow tester
7. The lithium-ion battery charger
8. The carrying bag
If any of the above components are not included in your kit, please contact the supplier immediately.
FILTER REPLACEMENT
1
Remove the filter cover by pressing in the
latch of the filter cover.
2
The filter cover is released.
3
Remove the used filter by lifting it out from
the filter cover.
4

5
Remove the pre-filter.
6
Clean the spark arrestor if necessary.
The pre-filter and filter expected lifetime is 12 months. When under
intensive use, check the filter cleanliness periodicall and if needed, change them more
often than ever 12 months.
INSTALLING THE BATTERY/CHARGING
1
Slide the battery towards the back of the
filtration unit.
2
Make sure that the battery is locked in
position.
3
The battery can be charged on the filtration unit or separately.
The battery is partially charged when delivered. It must be charged at a
100% before the first use.
It is recommended to charge the batteries at a 100% before each use.
The charger must not be used for anything else than it was designed for. Do not charge the battery
in a potentially explosive area. The charger must only be used indoors.
The charger regulates the charge automatically, once the battery is fully
charged, it will maintain it at a 100% (floating charge).
The charge time is 3 to 4 hours.
The battery will discharge itself after long storage periods. Always charge the
battery if the device was stored for more than 15 days. When the
battery is new or has been stored for more than 3 months, charge it and
discharge it at least twice in a row to reach the nominal/rated charge
capacity.

BATTERY CHARGE
1.Connect the battery to the charger. The connector is above the battery.
2.Connect the charger to the mains.
3.The state of charge is displayed via a red ED on the mains charger.
4.Once the charge is finished, the floating charge becomes active: the red ED switches off and a
green ED switches on.
5. Disconnect the charger from the mains (do not keep the charger plugged to the mains if it’s not
in use).
INSTALLING THE RESPIRATORY SYSTEM ON THE BELT
1
Remove the belt’s release buckle.
2
Remove the fastening belt from the waist
connector’s 2 belt loops.
3
Make the fastening belt pass through the
respiratory system’s 2 belt loops.
4
Position the Velcro® between the 2 loops.
5
Flip the filtration system and attach the
Velcro on the belt.
6
Put the fastening belt back through the 2 belt
loops.
7
Put the buckle back.
8
Attach the harness to the belt’s 4 plastic
rings.
Make sure the belt is securel fastened.

CONNECTING THE TUBE
1
Connect the air tube to the respiratory
system and twist it clockwise to lock its
position.
2
Connect the other end of the tube to the
headgear in the same way.
1.Check that the respirator tube is strongl connected. If the tube is broken, replace it.
All components must be installed/ used in accordance with this manual if the equipment is to
offer the specified protection. If an component is
missing, or if an thing is not clear, contact the supplier.
BEFORE USE/ FITTING
AIR FLOW TEST
1
Connect the breathing tube to the turbo unit
and twist it clockwise to lock it.
2
Insert the flowmeter at the tip of the tube.
3
Press the ON button and maintain the tube
in a vertical position at eyes’ height.
4
The air flow is sufficient if the marble
reaches the minimum flow level O.
1. The airflow must be tested before using.
2. If the marble can’t reach the minimum flow level, don’t use the s stem.
Change the filter or the batter and retest the air flow.

AIR FLOW ALARM TEST
1
Remove the tube from the helmet and
press the ON button.
2
Cover the air output with your hand and wait
approximately 15 seconds.
If the alarm does not work, please repair or change Respirator S stem.
FITTING
Adjust the tightness of the face seal and put
on the head top.
Adjust the headgear to suitable tightness
(push and turn left to loosen, turn right to tighten)
Make sure the face seal is positioned properl , otherwise, ou can’t get
sufficient sealing needed to offer the correct protection factor.
LCD DISPLAY SCREEN
There is a CD display screen on Grand Air unit to show the Grand Air working condition (FIGURE 3).
FIGURE 3
Part 1 shows the data of current air flow.
Part 2 shows the level of the airflow.
Part 3 shows the filter condition.
Part 4 shows the battery.

Part 5 shows the temperature of the battery.
An of them will flash if there are Grand Air disfunctions.
OPERATION
Switch the device on by pressing the ON button once.
Press the ON button once again, the air flow is at level 1 (~170 /min).
Press the ON button once again, the air flow is at level 2 (~200 /min).
Press the ON button once again, the air flow is at level 3 (~230 /min). Press the ON
button once again, the air flow reverts to level 1 (~170 /min).
1. Respirator s stem will turn off the turbo unit if long press the OFF button more than 3
seconds.
2. Respirator s stem will cut off the entire circuit and switch to sleep mode if the turbo unit has
turned off for more than 30 minutes. Pressing the ON button can activate the s stem.
3. The Respirator s stem must be operated in the temperature range of -5 to
℃
+55 and relative humidit less than 90%RH.
℃
4.
MAINTENANCE
The auto-darkening helmet needs little maintenance. Use a clean, soft piece of cloth
moistened with soft soap / pure alcohol / commercial disinfectant to wipe the inside and the
outside of the helmet. Dry storage.
Note: Do not immerse the helmet or ADF in water directly.
TROUBLE SHOOTING ADF
Trouble Remedy
The ADF does not
darken when welding.
-Stop welding or cutting immediately.
-Make sure the sensors are facing the arc and no obstructions.
-Check the mode that is on WE DING not GRINDING.
-Review sensitivity recommendations and adjust sensitivity if possible.
-Replace the battery if necessary.

The ADF stays dark
after welding or there
is no arc present.
-Adjust the sensitivity to the lower level (level 1).
-If the welding place is extremely bright, it is recommended to reduce
the surrounding light level.
The ADF switching
during the welding.
-Increase the sensitivity if possible.
-Make sure the sensors are facing the arc and no obstructions.
-Increase Delay 0.1 − 0.3 second may also reduce switching.
Inconsistent shade
number on the corner
of ADF.
-It is a natural feature and will not be dangerous for the eyes.
-In order to get a maximum comfort, try to keep an view angle at around
90°.
TROUBLE SHOOTING RESPIRATORY SYSTEM
Problem Probable cause Action
Fault code «E01»
+ blinks
1.Motor is stuck
2.Motor is damaged
3.Blower structure failure
caused by outer force
4.Circuit failure
Check and remove physical
failure and restart the system.
Return to dealer if CD still
shows E01
Fault code «E02»
+ blinks
1.Motor is damaged
2.Motor impeller rubs blower
shell
3.Circuit has excessive
current.
Check and remove physical
failure and restart the system.
Return to dealer if CD still
shows E02
blinks
+ blinks
+ alarm sounds
ow battery Charge the battery
blinks
+ blinks
+ alarm sounds
Filter blocked
Tube blocked
Remove obstruction, change the
filter
Clean tube
blinks +alarm sounds Battery high temperature Stop working and rest
No air flow, no alarm 1. No power
2.Battery contact damaged
Charge the battery
Check battery contact
Battery run time is too short 1.Battery is not fully charged
2. Filter is blocked
3. Battery is damaged
Charge the battery
Remove obstruction, change
filter
Change battery
Air supply to hood smells
unusual
1. Filter broken
2. Tube broken
3. ADF helmet broken
eave current area immediately.
1. Change filter
2. Change tube
3. Change ADF helmet
Supply insufficient air to hood 1. Breathing tube broken off
2. Breathing tube broken
1. Check tube connection to
hood and Respiratory system

3. Filter is blocked unit
2. change breathing tube
3.Remove obstruction, change
filter
PARTS LIST
Drawing
No.
Part No. Description
1 36001 Face Seal
2 38007 Head Gear
3 36002 Helmet Shell
6 36005 Inner transparent Visor lens (1pcs)
7 36006 Inner Protection ens
104.5x64x1mm (5pcs)
8 36007 Auto-Darkening Filter(ADF)
36010 ADF Remote Control
9 36008 Outer Protection ens
118x97x1mm (5pcs)
10 39002 Filter Cover
11 39003 Spark Arrestor
12 39001 Pre-filter
13 39017 TH3 Filter
14 36011 Turbo Unit
15 39007 Waist Belt
16 Included in 39007
18 39005 Rechargeable Battery
19 39006 Breathing Tube
20 Included in 39006
21 39009 Air Flow Tester
22 39010 Battery Charger

MARKING EXPLANATION
Powered filtering device:
● EN 12941:1998 Respiratory protective devices- Powered filtering devices
incorporating a helmet or hood- Requirements, testing, marking.
● TH3 P R (S ) classification of the unit. “TH3” defines the level of protection,
“P R” indicates the filter type (“P”= Particle filter, “R”= Reusable type of
particle filters) and “S ” reflects the filter has been tested against particles of
liquid and solid matter.
Warning indication
This Grand Air PAPR has sound and vibration alarm function.
Each grid stands for a period of 100ms. Gray is the beep sound and blank grid is a quiet period. If
several continued grids are in gray then there’s a continuous beep sound.
For example, when the current is overloaded, the system sounds like beep~beep~beep~~~~~.
SYMBOLS:
=Read instructions before use
0194= CE mark followed b number of notified bod who carried out module D
surveillance.
Warrant :
The Grand Air Blower unit is guaranteed for a period of 12 months from date of purchase against
mechanical or electrical defects.
The Grand Air battery is guaranteed for a period of 6 months from the date of purchase.
The company undertakes to exchange or repair without charge, any part found to be defective within
RECOMMENDED SHADE NUMBERS (Table 1)

this period alternatively and at its discretion. The Company may replace.
This guarantee is subject to:
The Grand Air unit has been used solely for the purpose for which it is intended.
The Grand Air unit has not been subject to misuse, accident, modification or repair.
In the event of a claim, contact the retailer from which the G Air unit was purchased.
The guarantee does not cover normal wear and tear.