Jefferson JEFWELHT5TP, Руководство пользователя

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3
USER MANUAL
Auto Darkening Welding Helmet
JEFWELHT5TP
3. Operation & Safety
WARNING: IF YOU ENCOUNTER ANY PROBLEMS WITH THE HELMET BEFORE OR DURING USE IT IS IMPORTANT THAT YOU DO NOT CONTINUE WITH THE WELDING
PROCESS. IF THE FILTER FAILS TO DARKEN CORRECTLY, FLASHES OR IS UNABLE TO ATTAIN THE APPROPRIATE SHADE TO PROTECT YOUR EYES YOU SHOULD STOP
IMMEDIATELY AND CONTACT YOUR JEFFERSON DEALER OR SUPPLIER.
3.3 DIN Shade Delay Setting
It is important that the correct delay setting is used for your welding process to avoid
any sudden flaring when you finish the welding process and the welding arc is broken.
When the welding arc is broken it is possible for residual arc to flare from the molten
welding pool which can be hazardous if the helmet has already automatically adjusted
the DIN shade to a lighter setting. To accommodate for this, the helmet is equipped with
a
Delay Time Switch for additional eye protection which can be set to three positions -
depending on the welding process:
1) Long = 0.6 to 0.9 second delay
2) Middle = 0.4 to 0.6 second delay
3) Short = 0.3 to 0.5 second delay
It is important that you use the correct delay & sensitivity setting to suit your
welding process and that you test the battery and filter before use.
Filter
Test Button
●
Battery
Indicator Light
●
Fig 2
3.1 Welding Protection
●
Ensure that the helmet is not used in conditions were welding spatter is more than
43g and exceeding 120m/s.
●
The helmet is manufactured to DIN BS EN175:1997 (Impact Level B) please ensure
that the appropriate protective clothing is worn to protect any other parts of the body
exposed during the welding process.
3.2 Sensitivity, Mode and DIN Shade Settings
●
Before you start welding adjust the Mode, Sensitivity and DIN Shade to the
appropriate settings for the welding process (see Fig1a & Fig1b ) and arc amperage
(see table on page 2).
●
Continue to adjust the DIN shade settings to attain the appropriate brightness to allow
you to see the welding molten pool and the welding spot without glare.
3.4 Testing
1. Testing the Battery:
You can test the lithium battery is charged by checking that the Bat-
tery Indicator Light is on. The Battery Indicator Light is located
beside the Test button on the control panel (see Fig 2 ). If the red light
is not displaying or if the light is weak you need to replace the
batteries. The helmet takes two CR2450 type batteries.
2. Testing the Filter:
You can test the filter by pressing the Test button on the control panel
(see Fig 2 ).
If the battery indicator is on and the filter shade is not darkening when
you press the
Test button there is a fault with the filter and it should
not be used to prevent the risk of injury.
DIN Shade Settings Fig 1b
Fig 1a
C