Atex KHLE 70 Operating & Maintenance Instructions

Maintenance must only be carried out in a safe area and with the supply
disconnected
Repairs, maintenance and bulb changing only to be undertaken in a
requirements of EN60079-14, Electrical installations in hazardous areas (other than mines) and EN60079-17
Inspection and maintenance of electrical installations in hazardous areas (other than mines) .
To replace the bulb
Ensure that the bulb has cooled. Remove the lock screw on the front face of the lamp lens ring, the screw
can be seen through hole in hexagonal rubber shroud.
The rubber shroud and lens ring assembly complete can then be unscrewed from the leadlamp body in an
anti clockwise direction. Care must be taken not to damage the threads on the lens assembly as this is the
critical joint of the flameproof enclosure. There is a screw securing the bulb to the bulb holder, remove screw
and disconnect the male spade terminal from the switch wire. Replace with correctly rated bulb and re-
assemble.
To replace the reflector
Remove the lens assembly by undoing the wire clip on the outside diameter of the reflector. Caution, the
spring is under tension and may recoil with some force. Safety glasses should be worn. Please note the
glass lens cannot be replaced as this is permanently set into the lens ring.
Assembly is the reverse of the above, ensure threads are not crossed and the sealing "O" ring is fitted.
Switch replacement
To replace the switch remove lens assembly as above, unscrew switch plate securing screws (x2) and de
solder wire connections. Note which terminals are connected to which wire. The switch actuating rod can be
taken out when the circlip on the end of the shaft is removed. Ensure the "O" ring on the shaft is in good
condition. There should be no sign of wear on either the bore or the shaft.
Fitting / Replacement of Cable
Remove the two screws on the cable clamp on the Ex cable entry gland. Unscrew the cable clamp (small
hexagonal nut) from the gland body, to loosen the rubber-sealing washer, so that cable can be pulled
through. The gland does not need to be disassembled.
Unscrew the three socket screws securing the handle. Slide handle back over cable. The Increased Safety
cable terminals are now accessible to fit the cable. Replacement cable MUST be suitable for the operating
voltage / current and for the environment it is to be used in. Assembly is reverse of above. Ensure cable
gland seal is in good condition. Do not over tighten socket screws for the handle this may distort and stress
the moulding.
Spare Parts List
Spare Part Num- Description
ber
LL-210 Switch
LL-212 Switch actuating rod and 'E' clip
LL-205 Switch spring
LL-220 Lamp holder complete
LL-230 Bulb 12 volt 50 watt
LL-232 Bulb 24 volt 70 watt
LL-234 Bulb 42 volt 65 watt
LL-240 Hexagonal rubber shroud
LL-250 Rubber seal (Handle to flameproof head)
LL-252 Rubber "o" seal (Lens ring assembly)
LL-260 Handle 12 volt (handle is printed with volt-
age)
by trained personnel to the
Spare Part Num- Description
ber
LL-262 Handle 24 volt (handle is printed with voltage)
LL-264 Handle 42 volt (handle is printed with voltage)
LL-266 Socket screws for handle ,including washers
(x3)
LL-270 Complete lens ring assembly
LL-272 Lock screw
LL-274 Reflector
LL-276 Isolating rubber seal for reflector
LL-278 Reflector retaining spring
LL-284 Terminal bush (EEx d)
LL-286 Leather carrying strap
LL-288 Cable gland
LL-106 issue 2 DF470
ATEX FLAMEPROOF LEADLAMP FROM WOLF
OPERATING & MAINTENANCE INSTRUCTIONS
ATEX Type KHLE 70 EN Model
EEx de IIC T3/T4.
Certificate of Conformity:
BVS03ATEXE279
o
Environmental conditions, -20 C to +40
0158
Applications and Use of Flameproof Lead Lamp in Hazardous Areas
The Flameproof Lead Lamp meets all relevant provisions of the 2014/34/EU (ATEX Equipment) Directive.
The lamp output is a bright focused halogen beam powered from 12V, 24V or 42V AC/DC, depending on model.
The lamp housing is made of aluminium alloy, the handle is made from high impact thermoset plastic. It is fitted
with a protective glass lens and a hexagon rubber shroud guards it against impact damage. The lamp is supplied
complete with leather carrying strap and a bulb. Cable can be supplied on request.
The Lamp can be used in Zone 1 and 2 Hazardous Areas for inspection, maintenance, cleaning and other work
tasks and in association with shot blasting and recoating of tanks, boilers, pressure vessels and silos.
Copies of BVS Certificate number BVS03ATEXE279 are available upon request.
Users and Maintainers should consult EN60079 Selection and Installation of Electrical Apparatus for use in
potentially explosive atmospheres, and classification of industrial Hazardous Areas.
If a lamp becomes damaged, it should be withdrawn from service and thoroughly checked over, and repaired, as
necessary before being put back into service.
Maintenance and Repair must only be carried out by a competent technician or electrician familiar with Certified
Electrical Apparatus in accordance with European guidelines EN60079-17 codes of practice and these
maintenance instructions, using only factory supplied spare parts.
LAMPS MUST NOT BE OPENED IN A HAZARDOUS AREA.
All maintenance activities must be carried out in a safe non-hazardous area.
Transformers (Hazardous Area)
Transformers, plugs and sockets must be certified for use in appropriate Hazardous Areas. Selection to be carried
out by suitably qualified engineer.
Transformers (Safe Area)
12 to 50 volt Transformers can be used to supply these products. If a non explosion protected transformer is used
it should be sited in the safe non hazardous area. Selection to be carried out by suitably qualified engineer.
Cabling and Plugs
The user must ensure correct cable type is used for the application. Many oil and gas companies insist on wire
braided cable with a cover of HOFR, heat oil and flame resistant sheath. Three core earthed. Length must not
exceed 20 metres.
Flameproof Leadlamp
Technical Specification
Model Number
LL-12 LL-24
Code II 2 G EEx d e IIC T3, T4
Certification
BVS03ATEXE279
Temperature class T4 T3
o
C
Input voltage 12V 24V
Wattage 55W 70W
Insulation class III
IP Rating IP54
Weight 2.5 Kg
Note voltage tolerance +10%, - 15%
LL-42
T3
42V
65W