Do not store outside the temperature range - 20°C to +50°C or with humidity above 90%.
When stored as stated, the expected shelf life of the headtops is 5 years from date of manufacture.
The original packaging is suitable for transporting the product throughout the European Economic Community.
TECHNICAL SPECIFICATION
(Unless otherwise stated in the Reference leaflet)
Respiratory Protection
Nominal Protection Factor = 50.
Assigned Protection Factor = 20.
EN1835 LDH2 when connected to regulator.
prEN146 (rev) TH2 / EN12941 TH2 when connected to AFU.
Welding Protection
HT-607 requires a welding filter to EN169, size 110 mm by 60 mm (shade 10 supplied with headtop).
HT-608 requires a welding filter to EN169, size 110 mm by 90 mm.
HT-609 requires a welding filter to EN169, size 108 mm by 82 mm (4 1/4” x 3 1/4”).
HT-615 is provided with an electronic welding filter to EN379, size 110 mm by 90 mm.
Shade protection classification 4/10-11 and 4/11-12 (class 1,1,3).
HT-616 is provided with an electronic welding filter to EN379, size 110 mm by 90 mm.
Shade protection classification 4/9-13 (class 1,1,3).
Class 1,1,3 – Optical class 1, Scattered light class 1, Homogeneity class 3.
The HT-607 welding shield meets the requirements of prEN175 S W (where S = increased robustness and
W = water immersion).
The HT-608 welding shield meets the requirements of prEN175 S (where S = increased robustness).
The HT-609 welding shield meets the requirements of BS1542 class 4.
The HT-615 and HT-616 welding shields meet the requirements of EN175 S (where S = increased robustness).
Flow Characteristics
Manufacturers Minimum Design Flow (MMDF) 150 l/min.
Maximum flow – See appropriate user instruction.
Head Size
One size, adjustable to fit 52 cm to 64 cm (UK sizes 6.5 – 8).
Operating Temperature
-5°C to +40°C.
Weight
HT-607 = 650 g.
HT-608 = 710 g.
HT-609 = 845 g.
HT-615 = 675 g.
HT-616 = 675 g.
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conditions may result in deterioration over a shorter period. For indoor or occasional use we would anticipate a
service life of approximately 5 years, provided the headtop is stored as stated below.
DOFFING
Do not remove the headtop or turn off the air supply until you have vacated the contaminated area.
1. Grasp the face seal, raise the visor, and lift the headtop off the head.
2. Switch off the air filter unit or disconnect the compressed air supply tube from the regulator.
3. Unbuckle the waistbelt.
NOTE:
If the respirator has been used in an area that has caused it to become contaminated with a substance
requiring special decontamination procedures it should be placed in a suitable container and sealed until it
can be decontaminated.
CLEANING INSTRUCTIONS
Use a clean cloth dampened with a mild solution of water and liquid household soap.
Do not use petrol, chlorinated degreasing fluids (such as trichloroethylene), organic solvents or abrasive cleaning
agents to clean any part of the equipment.
To disinfect use wipes as detailed in Reference leaflet (3M 105).
MAINTENANCE
Maintenance, servicing and repair must only be carried out by properly trained personnel.
Use of unapproved parts or unauthorised modification could result in danger to life or health and can invalidate any
warranty.
WHAT WHEN
General Inspection Before use
Monthly if not in regular use
Cleaning After use
A maintenance record should be kept at the monthly checking stage to comply with Health and Safety Regulations.
This record should be kept for at least 5 years.
Air Management Kit replacement HT-607, HT-608, HT-609: See fig. 4.
HT-615, HT-616: See fig. 5.
Face seal replacement HT-607, HT-608, HT-609: See fig 6.
HT-615, HT-616: See fig. 7.
Lens replacement HT-607, HT-608, HT-609: See Reference leaflet.
HT-615: See fig. 8.
HT-616: See fig. 9.
If disposal of parts is required this should be undertaken in accordance with local health and safety, and
environmental regulations.
FAULT FINDING
Relates to HT-615 and HT-616 only.
Symptom Possible cause Remedy
Irregular darkening Viewing angle not straight Adjust viewing angle
Cartridge flickers / Sensors covered or dirty Uncover / clean sensors
fails to darken Welding current too low Increase current
Cover lens dirty or damaged Clean or replace lens
Slow switching times Low operating temperature Do not use below - 5°C
Low ambient light Increase ambient lighting
Poor visibility Cover lens / shade cartridge dirty Clean cover lens / shade cartridge
Incorrect shade range Check range setting
STORAGE AND TRANSPORTATION
The equipment should be stored in the packaging provided in dry, clean conditions away from direct sunlight,
sources of high temperature, petrol and solvent vapours.
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