Tweco Auto Darkening Welding Helmet - Manual (Page 19)

AUTO-DARKENING WELDING HELMET INTRODUCTION
Manual 0-5045 2-4
!
WARNING
For machine disc cutting, scaling, grinding and machining of metals and the like, additional eyeshields or
faceshields with appropriate impact rating should be used. Refer to AS/NZS1336 and EN 175 for full details
of the appropriate protection for industrial applications.
!
WARNING
The indicated filter lens shade numbers are minimum. If any discomfort is felt, higher shade numbers
should be selected.
Recognized standards for recommended practices for occupational eye protection include AS/NZS 1336 and
EN 175.
Gloves should be flameproof gauntlet type to protect hands and wrists from heat burns and harmful radiations. They
should be kept dry and in good repair.
Protective clothing must protect the operator from burns, spatter and harmful radiation. Wool clothing is preferable
to cotton because of its greater flame resistance. Clothing should be free from oil or grease. Wear leggings and spats
to protect the lower portion of the legs and to prevent slag and molten metal from falling into boots or shoes.
2.07 Specifications
Description (Refer Note 1) Auto-Darkening Filter Lens
Auto-Darkening Lens Part Number 454320
Note: Auto-Darkening Lens Part Number 454320 is fitted to
the Thermal Arc Auto-Darkening Welding Helmet Product
Part Numbers: W4012000, W4011700, W4011800 & W4011900.
Filter Lens Dimensions 110mm x 90mm x 10mm
Viewing Area Dimensions 98mm x 46mm
Reaction Time 1/20,000 second
Sensors 2 Optical Sensors
Power Supply 3V Battery plus Solar Cell
Inactivated Shade and Grinding Level 3.5
Variable Shade Level 9 - 13
Operating Temperature -10C – 600C
Storing Temperature -200C – 700C
Sensitivity Range (Light to Dark) Low - High
Delay (Dark to Light) Min (0.1 sec) – Max (1 sec)
On/Off Control Automatic
Low Battery Indicator Flashing LED
Weight 110g
NOTE 1
Due to variations that can occur in manufactured products, claimed performance, voltages, ratings, all
capacities, measurements, dimensions and weights quoted are approximate only. Achievable capacities
and ratings in use and operation will depend upon correct installation, use, applications, maintenance and
service.