11E0001076B11

Instruction Manual
Explosion proof type LED Lighting Fittings

To be conserved

LZTB

Thank you very much for purchasing our LED lighting fittings.
Please read this instruction manual to use the product properly.
After installing the product, be sure to hand this manual over to the user of the product.
Prior to use
1) Prior to installing the fitting, check if the product is as per your order.
2) Check for a loose or damaged part due to an accident in transit, etc.
Performance1) The electrical characteristic data is given below.
Input Voltage
InputModel(Frequency)
Current-N (5000K)
81100-242V AC
LZTB1101-M
0.16-0.07A
50 / 60Hz
81M -W (3000K)

PowerConsumption

Type ofprotection

IPratingOption

15.0-15.5W

Ex de II CT6X

IP65

Mounting Bracket2) Usable in hazardous sreas of zone 1 or zone 2 hazardous areas where there are hydrogen gas.
Names of the Components and Installation Method- Installation work should be done properly by a qualified electrician in accordance with the related laws and the instruction manual.
- For safety, Installation work should be done by at least two workers.
■ Lighting fitting for inside inspection (Fig. 1: Example LZTB11081-N)
Supplied tool (hexagonal wrench key)
(WAF 5)
4- Hexagonal socket head bolts

Terminal box

Rear cap

Cap gasket

Wire entry(with G1/2 reducer)

Wires (3)Lamp house (fitting)

Mounting bracket

Prepare robust mounting brackets to be attached to the lamp
house (fitting) referring to the figure on the right (mountinghole positions).
NB1: Attach and fix the mounting brackets at four places (90°pitch) or three places (120° pitch).
NB2: The mounting brackets are optionally available.
For further i for atio , see Optio 1: Mou ti g Bracket.
Among the 12 cross-recessed pan head machine screws(M5x12, with plain and spring washers) on the lamp house,remove as many ones as needed. After removal, attach themounting brackets to the lamp house using as many crossrecessed pan head machine screws as needed.

NB: When the supplied cross-recessed pan head machine
screws are used, the recommended thickness of themounting bracket is 2 to 5 mm.
Mount the lamp house with the attached mounting brackets
on the structure (tank inspection hole, etc.) firmly.
NB1: Use M8 or larger bolts to mount it on the structure.
NB2: Be sure to fix the mounting brackets and lamp house firmly
using the mounting screw holes, though the mounting
6x2-M5 Mounting screw holesbracket height (distance from the tank inspection hole,
Screw hole depth: 8etc.) is not limited.
12 cross-recessed pan head machine screw M5x12
NB3: The lamp house angle should be within the range from 0°with spring and plain washers (supplied)(down) to 90°.
Remove the four hexagon socket head bolts using the supplied
tool (hexagonal wrench key) and remove the rear cap and cap
Fig.1
gasket (Fig. 1).
Connect the wires (white and brown: power wires, green: grounding wire), then put the cap gasket and rear cap over the lamp house inorder and fasten the four hexagon socket head bolts on the lamp house with the supplied tool (hexagonal wrench key).
NB1: Make sure that the cap gasket is between the lamp house and the rear cap.
NB2: Caulk the screw connections.
NB3: For wires, a G3/4 or G1/2 threaded entry (with a reducer) may be selected.
NB4: The external conductor should have a heat resistance of 70°C or more.
(option 1)(not supplied)--■ Attachment of Cable Gland (Fig. 7: Example ZCGS-22B)
Terminal box

Lock nut

2-Washers

O ring
Locking screw

Rubber sleeve
Body

Fig.2

Separate the cable gland into parts as shown in Fig. 2 and pass
the cable through the cable gland in the following order: cover,
2-Cable fixing screws
connecting member, cable fixing member, washer, rubber sleeve,
washer, body, and lock nut.
Cable retaining plate
NB1: The cable should be a round cable applicable to the rubber
O ringsleeve. For information on cables applicable to the cable
Connecting member
gland, see the catalog.
NB2: Be sure to remove the locking screw on the cable gland body
before separating the cable gland into parts.
Cable fixing member
Screw
in the lock nut on the body until it touches the body flange.
Cover
Fasten the gland onto the entry of the terminal box (or the device
to which the gland is to be attached) until the body stops.
Cable gland (ZCGS)
Tighten the lock nut toward the terminal box (or the device towhich the gland is to be attached).
Cable (round)
NB: Waterproof the threaded connection.
Push the washer, rubber sleeve, and washer into the body andpull out the cable to a sufficient length for cable connection.
Screw the cable fixing member into the body.
Fasten the cable retaining plate on the cable fixing member.
NB: Confirm that the cable does not move.
Tighten the locking screw on the body to prevent the cable fixing
member from loosening.
Attach the protective tube to the connecting member, thenscrew the cover into the body securely.
NB1: Confirm that the cover is invisible from the O ring. If visible,
the waterproofness is not ensured.
NB2: The cable gland should be a product as specified by SEIWA.

■ Option 1: Mounting Bracket (Figs. 3 and 4: Example LZTB110181-N)
3 mounting brackets (120° pitch)

Mounting bracket

6×2-M5 Mounting screw
12 cross-recessed pan head machine screw M5x12
with spring and plain washers (supplied)

Lamp house (fitting)Long hole

Attachment to the Lamp House

4 mounting brackets
Details of the Mounting Bracket(90° pitch)

Fig.3

Fig.4

Among the 12 cross-recessed pan head machine screws (M5x12, with plain and spring washers) on the lamp house, remove as many ones asneeded.
Fasten the removed machine screws and the four or three mounting brackets on the lamp house (Fig. 3).
NB: Four (90° pitch) or three (120° pitch) mounting brackets are needed.
Mount the lamp house (fitting) with the attached mounting brackets on the structure (tank inspection hole, etc.) firmly.
NB1: The mounting bracket is made of 3.2 mm-thick sheet steel (coated). For its dimensions, see Fig. 4.
NB2: Use M8 bolts to mount the lamp house on the structure.
NB3: The interval between mounting brackets (pitch) is 230 mm (diameter) as shown in Fig. 4.

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How to Use
The LED lamp is turned on by applying the rated voltage to the power cable of the product.
Maintenance■ Inspection

1) In cleaning the fitting, gently wipe with water or mild detergent. Don ’ t use thinner, benzene or alkaline detergent. Suchchemicals might cause discoloration or deterioration in quality and strength, resulting in a damage.
2) Prior to maintenance, be sure to turn off the power.
3) Carry out maintenance properly in accordance with the related law and regulations.
4) If a repair is needed, consult us.

Disassembly and Disposal
1) In the period when the product is in use, never disassemble it.
2) For disposal of the product, follow the regulations and rules of your local government.
Nameplate

Reordering
When reordering, please let us know:
・Drawing or drawing No. for the delivered product・Manufacturing lot number on the nameplate
If the above information is unavailable, give us any material showing the appearance of the productor details of the product specification (dimensions, mounting interval, lamp type, etc.).

Fig.5

CAUTIONS
1. The product must be installed so that the angle of the lamp house is within a prescribed range from its downward oriented position (0°).
If the angle is out of the range, an insulation failure or electric shock might result.
2. Prior to maintenance or inspection, be sure to turn off the power.
3. Confirm that the screws and bolts are fastened properly and tightly.
4. For outdoor use, waterproof the screwed portion of the conduit to prevent rainwater infiltration.
5. When installing the fitting, be sure to connect external wires inside a specified part of the fitting. Don't open any other part of the fitting
unless necessary.
6. The product must be used in a location where it can be used safely according to its explosion protection type (indicated on the body).
7. The supply voltage should be within the range of rating, and the supply voltage variation should be within ±6%.
8. The ambient temperature should be within the range of -20°Cto +55°C. There should be no influence of radiation heat .The use of theproduct out of this range may shorten the service life.
9. In grounding work, be sure to follow the technical standards for electrical equipment and explosion-protected equipment of your country.
Inadequate grounding might cause an explosion, fire or electric shock.
10. Prior to maintenance or inspection, be sure to turn off the power.
11. To prevent shortening of the service life, avoid turning on the fitting in direct sunlight.
12. To avoid noise or malfunctioning, don't use a radio, television or wireless infrared remote control near the fitting.
13. Don’t open the front glass. The internal components such as the LED lamp become very hot. Don’t touch the LED lamp since a malfunction
or lighting failure might occur.
14. For white LED lamps, the luminescent color and brightness may vary with individual LEDs because of their nature. Also note that the rateof attenuation with time varies with individual LED lamps.
15. The product must be mounted on a sturdy wall surface or structure which is vibration-free and less susceptible to damage. Otherwise, itmight fall or be damaged.
16. For use in an unfavorable location (a very hot, cold or humid place or a place in which there is strong wind or vibration, a salt damage
environment or a dusty or corrosive gas atmosphere), a special countermeasure should be taken.
17. After turning off the power, allow 7 minutes before opening the lamp house. Otherwise, an explosion might occur.
18. Use a cable gland as specified by SEIWA. Use of any other cable gland might cause a fire, electric shock or explosion.
19. The external conductor must have a heat resistance of 70°C or more. Otherwise, a fire, electric shock or explosion might result.
20. Replacement or repair can be made as far as SEIWA can guarantee the quality of the product.
21. Do ’t look straight at the LED la p. It ca da age your eyes.
22. The fastening bolts on the control unit chamber housing the control unit have a tensile strength level of A2-70. Don ’ t remove thefastening bolts. Removal of the bolts might cause a fire, electric shock or explosion.
23. If there is a heat source near the product, the product may overheat due to radiation heat. Use a heat shield plate or thermally insulating
glass to prevent the product from being affected by radiation heat.

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Safety Precautions-To be conserved

Prior to use, please read the safety precautions and instruction manual thoroughly to use the product properly.
After installing the product, be sure to hand the safety precautions and instruction manual over to the user of the product.
Please keep the manual in a handy place for later reference.
● The various marks have the following meanings:

WARNING: Improper handling may lead to a human death or serious bodily injury.
CAUTION:

Improper handling may lead to a bodily injury or property damage.

Be sure tofollow theinstructions.

Be sure to turnoff the power.

Disassembly &conversion
prohibited.

Don’t use neara water source.

Be sure toground.

Prohibited.

Don’t touch.

CautionBe careful ofignition.

WARNING
If you use a product in a hazardous location where there is a gaseous, steamy or dusty atmosphere, it should be of theflameproof type suitable for the location. Use of an unsuitable type apparatus might cause an explosion or fire.
The ambient temperature should be within the operating temperature range specified in the instruction manual. If theproduct should be used at a temperature higher than specified, an early lighting failure or malfunction might occur or anexplosion or fire might result.
If a product must be oriented in a specific manner for use, install it properly according to the marking on its body or theinstruction manual. Otherwise, an explosion, fire or electric shock might result.
For electrical connections, use crimp-type terminals, etc. to secure the connections and conduct insulation treatment. Aninadequate connection or inadequate insulation might cause an imperfect contact, leading to an explosion, fire or electricshock.
In grounding work, be sure to follow the technical standards for electrical equipment and explosion-protected equipment of
your country. Inadequate grounding might cause an explosion, fire or electric shock.
Do ’t o ert the produ t.
Conversion might cause the product to fall or result in a fire or electric shock.
Do ’t o er the produ t ith a i fla
a le aterial su h as loth or paper or put a ythi g i the produ t.
Such a material or thing might cause an explosion or fire.
When leading the power cable into the product, be sure to follow the technical standards for electrical equipment andexplosion-protected equipment of your country. Inadequate cable connection or waterproofing might cause an explosion,
fire or electric shock.
Do ’t e d, t ist or pull the po er a le y for e.
Inadequate handling of the cable might damage it and result in a fire or electric shock.
The parts once removed for cleaning should be replaced properly according to the instruction manual.
An improperly placed part might cause the product to explode or fall, resultng in an injury or property damage.
When leading the power cable into the product through a conduit or the like, waterproof the connection and joint
adequately to prevent water infiltration. Inadequate waterproofing might cause a fire or electric shock.
Do ’t ope LED la p prote ti e o ers su h as the fro t glass a d glass glo e.
Do ’t tou h a LED la p, other ise a alfu tio or lighti g failure ight o ur.
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WARNINGBefore cleaning, be sure to turn off the power.
Otherwise, a fire or electric shock might result.
If you continue to use the product in an abnormal condition (smoke, odor, etc.), an explosion, a fire or electric shock might
result. If you detect an abnormality, immediately turn off the power switch. Confirm that the abnormal condition has beeneliminated and make a repair call.
Don’t use the product in a strong corrosive gas atmosphere which contains hydrochloric acid or chlorine gases or the like.
Use in a corrosive gas atmosphere might cause the product to corrode and fall, resulting in an injury.
The product should be mounted on a surface robust enough to support its weight, properly according to the instruction
manual. Improper installation might cause the product to fall or result in an electric shock or injury.

CAUTIONAny product not marked as a product for outdoor use should not be used outdoors or in a humid place or near a water
source. Its use in such a place might cause a fire or electric shock.
Do ’t use the produ t at a oltage other tha the rated oltage i di ated o the a eplate.
Otherwise, breakage, fire or electric shock might result.
For a product marked with a frequency, don’t use the product at a frequency other than 50 or 60 Hz (local power supplyfrequency). Use at a wrong frequency might cause a fire.
Installation of the product should be carried out by a qualified person.
Installation by an unqualified person is legally prohibited.
Never touch LED light sources and their surroundings.
The light sources and their surroundings are very hot, so an accidental touch might cause a burn.
To ensure brightness and safety, carry out periodical cleaning and inspection.
If you find a problem, discontinue the use of the product and have it repaired by a specialist.
A lighting fitting has a service life. A product which has been used for eight to ten years may have degraded internal partseven if it looks normal. For safety and energy saving, we recommend you check and replace it. The LED module design life is
6,0000 hours (different from the lighting fitting life) when used at an ambient temperature of 30°C, 10 hours per day, 3,000
hours per year. If used at a higher temperature or more hours per year, the life would be shortened. Have a specialist
inspect the product every three years. If used for an extended period without inspection, a smoke, fire, or electric shockmight result.

Resycling
Ni-Cd
Ni-MH

JBRC

Please bring used Secondary batteries to the recycling station for effective use of precious
resources and global environment conservation.

Japan Portable Rechargeable Battery Recycling Center

Phone +81 3 6403 5763

CONTACT DETAILSFor further information on the product, contact any of our offices listed below (if you like to make an inquiry, let us know the model nameindicated on the product nameplate).

SEIWA ELECTRIC MFG.CO., LTD.
Head Office

36 Shinike, Terada, Joyo, Kyoto Pref. 610-0192 JapanTokyo Branch

2-19-6 Yanagibashi, Taito-ku, Tokyo 111-0052 Japan

Phone
Fax
Phone
Fax

+81 774 55 8181
+81 774 58 2034
+81 3 5833 8946
+81 3 5833 8971

Please note that the above addresses and phone numbers may be changed.
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