Western Technology WT-GERM KILLER BODYLight 8910UVC Manual

Western Technology, Inc. Confidential and Proprietary
Standard Operating Procedure
SOP Title:
WT-GERM KILLER™ 8910UVC BODYLight™ Operation
SOP Number:
Effective Date:
Page:
WT-SOP-01007.05
10July2020
1 of 17
Supersedes:
Scheduled Review:
Distribution ID:
WT-SOP-01007.04
Biennial
NA
1. PURPOSE AND OBJECTIVE
The purpose of this Standard Operating Procedure is to delineate the operation of
the WT-GERM KILLER 8910UVC BODYLight.

SOP Title:
WT-GERM KILLER™ 8910UVC BODYLight™ Operation
Effective Date:
10July2020
SOP Number:
WT-SOP-01007.05
Page: 2 of 17
Western Technology, Inc. Confidential and Proprietary
2. SCOPE
2.1. The scope of this procedure extends to all persons who operate the WT-
GERM KILLER 8910UVC BODYLight.
3. REFERENCED DOCUMENTS
3.1. ATM, BodyLight, Report: 103231919CRT-001, Intertek, 25Mar2020.
3.2. ATM, BodyLight Lithium-Ion Battery Pack, Report: 103148214CRT-001,
Intertek, 21Jun2018.
3.3. ATM, BodyLight Lithium-Ion Class 2 Battery Charger, Report: 103231919CRT-
002, Intertek, 27Dec2019.
3.4. WT-FRM-01007, WT-GERM KILLER 8910UVC BODYLight Emission
Certificate.
3.5. WT-GERM KILLER Emission Spectrum.
4. RESPONSIBILITY
4.1. It is the responsibility of any user of the UVC BODYLight to understand and
follow this SOP.
4.2. It is the responsibility of any user of the UVC BODYLight to understand and
comply with all procedures, practices, and safety protocols as outlined in this
SOP.
4.3. It is the responsibility of management to ensure all users are trained in the
safe use of the UVC BODYLight prior to operation.
5. DEFINITIONS
5.1. ATM: Authorization To Mark.
5.2. CCT: Correlated Color Temperature. The temperature at which a black-body
radiator, i.e. carbon, produces light of a particular hue. In the case of 5700ºK
the color temperature is that matching noon-day sunlight.
5.3. COVID-19: SARS-CoV-2
5.4. PPE: Personal Protective Equipment.
5.5. SOP: Standard Operating Procedure.
5.6. UV: Ultraviolet
5.7. UVC: Ultraviolet C short-wave, germicidal, electromagnetic radiation having a
wavelength between 100-280nm.
5.8. UVC BODYLight: WT-GERM KILLER™8910UVC BODYLight™.

SOP Title:
WT-GERM KILLER™ 8910UVC BODYLight™ Operation
Effective Date:
10July2020
SOP Number:
WT-SOP-01007.05
Page: 3 of 17
Western Technology, Inc. Confidential and Proprietary
6. EQUIPMENT AND SUPPLIES
6.1. 8910UVC BODYLight Light Head
6.2. 8910 BODYLight Battery Pack
6.3. 8910 Battery Charger
6.4. 8910 Bristle Cone
6.5. 8910 Manifold
6.6. 8910 Power Box
7. THEORY
7.1. Visual light is part of the electromagnetic spectrum that can be detected by the
human eye, typically having wavelengths between 400nm to 700nm.
7.2. UV radiation is usually specified as having wavelengths from 10nm to 400nm.
7.3. UVC radiation is identified as having wavelengths between 100nm and 280nm,
and it is MUV (Middle Ultraviolet) having wavelengths between 200nm and
300nm that is considered germicidal.
7.4. UVC light can be absorbed by RNA and DNA causing damage to these
molecules, such as in the formation of a thymine or cytosine dimers, which
distort the molecule and prevent proper functionality.
7.5. The efficacy of UVC radiation is well documented in the literature as a means
to inhibit microbial viability and inactivation of COVID-19 (See References,
Section 14).
7.5.1. Recent studies indicate that an irradiance dosage of ≥ 3.6mW/cm2of
UVC(260–285nm) on contact surfaces is sufficient to inactivate or “kill”the
SARS-CoV-2 virus.
8. PRODUCT DESCRIPTION
8.1. The WT-Germ Killer 8910UVC BODYLight is a flexible battery powered or
cord connected germicidal UVC LED Light.
8.2. The UVC BODYLight and all components are ETL Certified to be Explosion
Proof compliant for use in the following hazardous (classified) location
atmospheres and water environmental conditions: Class I Division 1 & 2,
Groups C, D; Class II Division 1 & 2, Groups E, F, G; Zone 1 & 2, Zone 20, 21
& 22; Suitable for Use in Wet Locations, NEMA Type 6P when fully
assembled.
8.3. The UVC BODYLight utilizes 10 High-Power germicidal UVC LEDs with a
peak emittance at 265-275nm having an average adjusted output power at 4-
inches (10.16cm) of >2.2mW/cm2and at 3-inches (7.62cm) of >3.7mW/cm2
across a projected 60° beam angle.

SOP Title:
WT-GERM KILLER™ 8910UVC BODYLight™ Operation
Effective Date:
10July2020
SOP Number:
WT-SOP-01007.05
Page: 4 of 17
Western Technology, Inc. Confidential and Proprietary
8.3.1. The UVC emission spectrum and irradiant energy profile documentation
is provided with this UVC BODYLight.
8.3.1.1. WT-FRM-01007, WT-GERM KILLER 8910UVC BODYLight
Emission Certificate
8.3.1.2. WT-GERM KILLER Emission Spectrum
8.4. The UVC BODYLight simultaneously emits a 60º beam angle of light,
providing both critical passageway lighting and a visible safety marker as to
the projected emission / beam angle of the invisible UVC radiation.
8.5. A 4-inch long Bristle Cone is fitted into the bumpers of the UVC BODYLight
providing a tactile reference distance of > 1-second germicidal inactivation of
the COVID-19 virus and to provide shielding of scattered or reflected UVC
radiation.
8.6. The UVC BODYLight light head may be cord connected to a Battery Pack
Manifold for extended power or to a Power Box, which will provide continuous
power, if required. These connections can be made within the hazardous
(classified) area.
8.7. The UVC BODYLight is thermally monitored to ensure maximum life to the
electronics, battery pack, and LED systems.
8.8. Protective Polyurethane Bumpers are fitted to the UVC BODYLight.
8.8.1. The light head Bumpers are Fluorescent Orange providing rapid UVC
emission identification in the field and to provide protection to both
working surfaces and the UVC BODYLight.
8.8.2. Further, Glow-In-The-Dark Bumper additions are included to assist in
locating the UVC BODYLight in the dark and to aid in Battery Pack
exchange, should it be required when working in dark environments.

SOP Title:
WT-GERM KILLER™ 8910UVC BODYLight™ Operation
Effective Date:
10July2020
SOP Number:
WT-SOP-01007.05
Page: 5 of 17
Western Technology, Inc. Confidential and Proprietary
9. SAFETY AND PRECAUTIONS
9.1. UVC Radiation Generated:
9.1.1.
WARNING
Avoid exposure to direct or reflected germicidal ultraviolet rays.
Germicidal ultraviolet rays are harmful to the eyes and skin. UVC is
reasonably anticipated to be a human carcinogen. Wear personal
protective equipment covering all exposed skin and eyes.
Never look into the UVC light source and avoid all reflected light.
9.1.2. CAUTION
Germicidal ultraviolet rays may break down plastic, rubber, or other
non-metallic materials, can fade colors, and can be damaging to
plant life. Shield all plastic, rubber, or other non-metallic parts, plant
life, etc. which may be exposed to direct or reflected germicidal
ultraviolet rays.
9.1.3. Personal Protective Equipment:
9.1.3.1. Ensure all required and compliant personal protective equipment is
worn to prevent exposure to UVC radiation prior to operation of the
UVC BODYLight, which should include approved UVC blocking
gloves, face mask/shield, garments, and shoe coverings.
9.1.3.2. Ensure a respirator or breathing apparatus is used, if required and
directed by local, state, or federal regulations.
9.1.3.2.1. Always comply with company or organization directed safety
protocols and directives.

SOP Title:
WT-GERM KILLER™ 8910UVC BODYLight™ Operation
Effective Date:
10July2020
SOP Number:
WT-SOP-01007.05
Page: 6 of 17
Western Technology, Inc. Confidential and Proprietary
9.2. Equipment Precautions
9.2.1. 8910 UVC BODYLight Head:
WARNING –This unit is Factory Sealed; Do Not Open. Risk of
Explosion, Recharge the Batteries Outside of the Hazardous Location. To
Reduce the Risk of Ignition of Hazardous Atmospheres, Any Repair
Made to this Lighting Unit is to be Made Only By the Manufacturer or its
Authorized Representative.
CAUTION –For use with Western Technology Power Supply;
Replace with Western Technology Battery Canister Only.
9.2.2. 8910 BODYLight Battery Pack:
WARNING –This unit is Factory Sealed; Do Not Open. Do Not
Submerse. Risk of Explosion, Recharge Batteries Outside of HazLoc
Area. Battery May Explode or Catch Fire if Mistreated.
CAUTION –For use with Western Technology BODYLight; Replace
with Western Technology Battery Canister Only. Do Not Disassemble,
Crush or Modify. Do Not Short Circuit. Do Not Heat Above 100ºC (212ºF)
or Dispose of in Fire.
9.2.3. 8910 Battery Charger:
WARNING –This unit is Factory Sealed; Do Not Open. Risk of
Explosion, Recharge the Batteries Outside of the Hazardous Location. To
Reduce the Risk of Ignition of Hazardous Atmospheres, Any Repair
Made to this Lighting Unit is to be Made Only By the Manufacturer or its
Authorized Representative.
CAUTION –For use with Western Technology Power Supply;
Replace with Western Technology Battery Canister Only.
9.2.4. 8910 BODYLight Battery Pack Manifold:
WARNING –This unit is Factory Sealed; Do Not Open. Risk of
Explosion, Recharge the Batteries Outside of the Hazardous Location. To
Reduce the Risk of Ignition of Hazardous Atmospheres, Any Repair
Made to this Unit is to be Made Only By the Manufacturer or its
Authorized Representative.
CAUTION –For use with Western Technology BODYLight; Replace
with Western Technology Battery Canisters Only.

SOP Title:
WT-GERM KILLER™ 8910UVC BODYLight™ Operation
Effective Date:
10July2020
SOP Number:
WT-SOP-01007.05
Page: 7 of 17
Western Technology, Inc. Confidential and Proprietary
10. EQUIPMENT SPECIFICATIONS
10.1. UVC BODYLight Light Head with Battery Pack - ATM, BodyLight
10.1.1. Suitable for simultaneous use in Class I, Division 1 & 2, Group C, & D and
Class II, Division 1 & 2, Group E, F, & G locations; Zone 1 & 2 and Zone
20, 21 & 22.
10.1.2. Temp. Ambient: -20º to +40ºC. Temp. Rating: T5.
10.1.3. Conforms to UL Std. 153, 844, 62133.
10.1.4. Certified to CSA Std. 12, 137, 25, E62133.
10.1.5. Suitable for Wet Location Use. Type 6P.
10.2. BODYLight Battery Pack - ATM, BodyLight Lithium-Ion Battery Pack
10.2.1. Suitable for simultaneous use in Class I, Division 1 & 2, Group C, & D and
Class II, Division 1 & 2, Group E, F, & G locations; Zone 1 & 2 and Zone
20, 21 & 22.
10.2.2. Identification: 4INR19/66.
10.2.3. Output Power: 14.4VDC, 3.4Ah.
10.2.4. Temp. Ambient: -20º to +40ºC. Temp. Rating: T5.
10.2.5. Certified to UN 38.3.
10.2.6. Conforms to UL Std. 62133.
10.2.7. Certified to CSA Std. E62133.
10.2.8. Suitable for Wet Location Use. Type 6P.
10.3. Battery Charger - ATM, BodyLight Lithium-Ion Class 2 Battery Charger
10.3.1. Ordinary Location Class 2 Power Unit
10.3.2. Input Power: 110-220VAC, 50/60Hz.
10.3.3. Output Power: 16.8VDC, 1.625A.
10.3.4. Conforms to UL Std. 153, 1310.
10.3.5. Certified to CSA Std. C22.2 No. 223.
10.4. BODYLight Battery Pack Manifold - ATM, BodyLight
10.4.1. Suitable for simultaneous use in Class I, Division 1 & 2, Group C, & D and
Class II, Division 1 & 2, Group E, F, & G locations; Zone 1 & 2 and Zone
20, 21 & 22.
10.4.2. Output Power: 14.4VDC, 3.4Ah.
10.4.3. Temp. Ambient: -20º to +40ºC. Temp. Rating: T5.
10.4.4. Conforms to UL Std. 62133.
10.4.5. Certified to CSA Std. E62133.
10.4.6. Suitable for Wet Location Use. Type 6P.

SOP Title:
WT-GERM KILLER™ 8910UVC BODYLight™ Operation
Effective Date:
10July2020
SOP Number:
WT-SOP-01007.05
Page: 8 of 17
Western Technology, Inc. Confidential and Proprietary
11. EQUIPMENT OPERATION
11.1. Procedural Frequency
11.1.1. This SOP should be followed every time the UVC BODYLight is used.
11.2. Safe Equipment Handling
11.2.1. For extended life and efficacy of the UVC BODYLight always avoid rough
usage and keep the Light clean and free of material splatter, overspray,
and debris during usage.
11.2.2. It is recommended to always operate the UVC BODYLight with the Bristle
Cone in position for protective operation to all personnel and to
appropriately gauge effective kill distance.
11.2.3. Always move or carry the UVC BODYLight by the body, affixed strap, or
handle –Never pull by a connected power cord.
11.2.4. Do not impact the Lens with hard, sharp or heavy objects, which can
cause the lens to scratch, chip, crack, or shatter.
11.2.5. Avoid setting the UVC BODYLight FACE DOWN, especially on abrasive
surfaces, which might result in chipping, scratching, abrading, or cracking
of the Lens.
11.2.6. Do not operate the UVC BODYLight without Bumpers.
11.2.7. Do not severely bend a connected cord at any point as this may cause
internal conductors to break and system failure.
11.3. Charging the BODYLight Battery Pack
11.3.1. Obtain the BODYLight Battery Charger and plug it into a compliant VAC
outlet in an Ordinary Location.
11.3.1.1. WARNING - The charger is not explosion proof rated and
must remain outside the hazardous location when charging
the batteries.
11.3.2. Obtain the BODYLight Battery Pack and screw it into the receiving hub
on the Battery Charger until a firm contact is made and allow the Pack to
fully charge.
11.3.2.1. Note: The Hub is fitted with a Battery Pack charge indicator ring
that will glow when the Battery Pack is in a charge cycle
and when the Battery Pack is fully charged.
11.3.2.2. A full charge cycle takes approximately 2.5 hours.
11.3.2.3. Once the Battery Pack is fully charged, the Battery Charger will
enter into a standby mode until an additional charge is required.

SOP Title:
WT-GERM KILLER™ 8910UVC BODYLight™ Operation
Effective Date:
10July2020
SOP Number:
WT-SOP-01007.05
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Western Technology, Inc. Confidential and Proprietary
11.3.2.4. A charged Battery Pack can operate the UVC BODYLight for
approximately 4-hours before recharging is required.
11.4. Pre-Operation Check of the UVC BODYLight
11.4.1. Before operation of the UVC BODYLight complete a preventive
maintenance check of all components, as outlined in Section 12.2.
11.4.2. Bristle Cone Installation
11.4.2.1. Obtain the UVC BODYLight light head and the Bristle Cone.
11.4.2.2. Insert the rubber ring of the Bristle Cone into the receiving
grooves of the Bumpers on the front face of the UVC BODYLight.
11.4.2.2.1. Note: It may be necessary to remove the top Bumper
screws in order to insert the Bristle Cone into the groove.
11.5. Operation of the UVC BODYLight
11.5.1. Put on approved PPE for potential UVC radiation exposure.
11.5.2. Attaching the Power Source to the Light Head
11.5.2.1. Firmly screw on the power source (Battery Pack, corded Battery
Pack Manifold, or corded Power Box) to the UVC BODYLight
Light Head.
11.5.2.1.1. Ensure that a fully charged Battery Pack is used, if
applicable.
11.5.2.2. Note: When firmly hand tightened together, the gasket, located
at the base of the power source threaded connector, will
compress and a metal-to-metal contact and watertight seal will
be made.
11.5.3. Switching ON and OFF the UVC BODYLight
11.5.3.1. The UVC BODYLight is equipped with a button on each side of
the Light Head.
11.5.3.2. With the UVC BODYLight facing away from you, the Left Button
will turn ON the light and the Right Button will switch OFF the
light.
11.5.3.2.1. Note: The Left ON Button is marked and has the
closed/connected power mark “ ” molded into the
fluorescent orange Bumper above this button.

SOP Title:
WT-GERM KILLER™ 8910UVC BODYLight™ Operation
Effective Date:
10July2020
SOP Number:
WT-SOP-01007.05
Page: 10 of 17
Western Technology, Inc. Confidential and Proprietary
11.5.3.2.2. Note: The Right OFF Button is marked and has the
open/disconnected power mark “ ” molded into the
fluorescent orange Bumper above this button.
11.5.3.3. Turn ON the Charge Indicator LED located at the top of the front
face of the UVC BODYLight by depressing and releasing the Left
( / ) Button.
11.5.3.4. Note the color of the charge indicator LED:
11.5.3.4.1. A LED charge indicator light indicates a battery
having 2+ hours of battery charge.
11.5.3.4.2. A LED charge indicator light indicates
approximately 1 hour of battery charge remaining.
11.5.3.4.3. A LED charge indicator light indicates a depleted
battery requiring exchange.
11.5.3.5. Depressing and releasing the Left ( / ) Button will not
cause any additional effect to the operation of the UVC
BODYLight, but the Light may be turned OFF by depressing and
releasing the Right ( / ) Button.
11.5.3.6. UVC Activation/Deactivation Code Mode (Special Order Only)
11.5.3.6.1.1. If the UVC BODYLight was provided with a UVC Lock-Out
Code, a UVC activation code must first be entered into the
system to unlock the UVC function.
11.5.3.6.1.2. To enter into the UVC Code Entry Mode, depress and
hold both the Left On ( / ) and Right Off ( / )
buttons simultaneously for about 2-seconds, at which time
the Battery Charge Indicator LED will initially flash
four times to indicate a change of mode, at which time the
LED will glow for approximately 1-second, followed
by repeated to flashing, indicating that the
BODYLight has entered into the UVC Code Entry Mode.
11.5.3.6.1.3. Enter the code assigned to the UVC BODYLight to
activate the UVC mode, which consists of a series of
button depressions.
11.5.3.6.1.4. When the code is correctly entered and the UVC mode is
activated, the Battery Charge Indicator LED will flash
four times to indicate a correct code entry, after
which it will enter into the visible Glow COB illumination
mode.
11.5.3.6.1.5. If the code is incorrectly entered, the Battery Charge
Indicator LED will flash four times to indicate an

SOP Title:
WT-GERM KILLER™ 8910UVC BODYLight™ Operation
Effective Date:
10July2020
SOP Number:
WT-SOP-01007.05
Page: 11 of 17
Western Technology, Inc. Confidential and Proprietary
incorrect code entry, after which it will enter into the
Battery Charge Indicator mode.
11.5.3.6.1.6. If the UVC BODYLight is left in the UVC Code Entry
Mode, after approximately 2-minutes it will shut off the
UVC BODYLight.
11.5.3.6.1.6.1. Note: In some cases, if requested by the customer,
the UVC mode may be set to automatically
deactivate after a set period of time, i.e. 1-hour, or
immediately upon removal of the Battery Pack.
11.5.3.6.1.7. To deactivate and Lock-Out the UVC mode, enter again
into the UVC Code Entry Mode, by depressing and
holding both the Left On ( / ) and Right Off ( / )
buttons simultaneously for about 4-seconds, at which time
the Battery Charge Indicator LED will repeatedly flash
to , indicating that the BODYLight has entered
into the UVC Code Entry Mode.
11.5.3.6.1.8. Enter the code assigned to your organization to deactivate
the UVC mode, which consists of a series of button
depressions.
11.5.3.6.1.9. Once deactivated, the UVC BODYLight will immediately
enter into Battery Charge Indicator mode.
11.5.4. Germicidal UVC Illumination
11.5.4.1. Turn ON the Germicidal UVC and Visible Light by depressing
and holding both Left ( / ) and Right ( / ) buttons
together for approximately 2-seconds.
11.5.4.1.1. Note: The visible RED light is provided not only to
illuminate areas that might be dark for safe operation, but
also to provide Warning reference as to the projected
beam pattern of the invisible UVC light emission for safe
and effective practices.
11.5.4.2. Depressing and releasing the Left ( / ) button will switch
OFF the UVC/Visible Light output and turn on the Battery Charge
Indicator LED.
11.5.4.3. Turn OFF the UVC BODYLight by depressing and releasing the
Right ( / ) Button.
11.5.4.3.1. Note: When the Battery Pack is almost drained, the UVC
BODYLight will rapidly blink about five times to indicate

SOP Title:
WT-GERM KILLER™ 8910UVC BODYLight™ Operation
Effective Date:
10July2020
SOP Number:
WT-SOP-01007.05
Page: 12 of 17
Western Technology, Inc. Confidential and Proprietary
the Battery Pack is almost depleted of energy and should
be recharged. It will then resume stable and germicidally
effective UVC output energy until the Battery power drops
below that which is required to maintain full UVC output
energy, at which time the UVC BODYLight will shut off.
11.5.4.3.2. Exchange the drained Battery Pack for a fully charged
Battery Pack to continue sanitizing operations, as
required.
11.5.5. Germicidal Operation of the UVC BODYLight
11.5.5.1. The Bristle Cone functions as a protective shield to the user and
other personnel in the area of operation from stray or scattered
UVC radiation and it also provides a physical measure of the
effective kill zone.
11.5.5.1.1. WARNING - Be aware of your surroundings. Do not
expose individuals to UVC radiation.
11.5.5.2. When operating the UVC BODYLight, bring the Bristles in
contact with the surface to ensure effective radiant kill energy
and protective shielding from scattered or stray light.
11.5.5.2.1. The zone of UVC light emission within the Bristle Cone
provides > 2mW/cm2radiant energy at 1-second.
11.5.5.2.2. Use the Bristles to dislodge or move particles, allowing
more effective full contact exposure of the UVC light on
the surface and on any foreign particulates.
11.5.5.3. For efficient and effective sanitization, use a sweeping motion of
the UVC BODYLight keeping the Bristle Cone in contact with the
surface.
11.5.5.4. Use a sweeping motion such that > 1-second UVC exposure
time is achieved on the surface being sanitized so that ≥
3.6mW/cm2 irradiant energy is provided.
11.5.5.5. Ensure irradiation of all surface areas –top, bottom, sides,
corners, etc.
11.5.5.5.1. Note: Areas kept in shadow will not be sanitized.

SOP Title:
WT-GERM KILLER™ 8910UVC BODYLight™ Operation
Effective Date:
10July2020
SOP Number:
WT-SOP-01007.05
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11.5.6. UVC BODYLight LED Operator Signals
No.:
Observed Signal:
Reason/Indicator:
Observation/Correction:
10.5.6.1.
LED
Full charge/power.
None –Ready for Operation.
10.5.6.2.
LED
Partial charge/power.
About 1-hour of battery charge
remaining.
10.5.6.3.
LED
Low charge/power.
Recharge battery.
10.5.6.4.
Blinking LED
Battery charge/power
too low upon
connection to light
head.
Connect a charged battery or
compliant power source.
10.5.6.5.
Flashing
Illumination
Low power signal.
Five rapid flashes indicating
about 20-minutes of charge
remaining. Replace with charged
battery.
10.5.6.6.
Blinking
LED
BODYLight has
overheated.
Thermal monitoring switched off
the BODYLight due to elevated
operating temperature. Upon
20°F drop in temperature the
BODYLight will reset and can
now be switched on.
10.5.6.7.
Repeating -
-LED
Blinks
UVC LED emission
power is
noncompliant to
output specifications.
BODYLight will not switch on.
Contact Western Technology for
replacement of UVC LED board.
10.5.6.8.
None
BODYLight requires
power.
Connect the BODYLight head to
a charged battery or power
source.
Ensure proper connector
contact.
10.5.6.9.
None
BODYLight does not
operate.
Contact Western Technology
Customer Service.
10.5.6.10.
No Operation
BODYLight does not
operate.
Contact Western Technology
Customer Service.
10.5.6.11.
Repeatedly flashing
to LED
BODYLight has
entered UVC Code
Entry Mode.
Enter the UVC
activation/deactivation code or
press the ON/OFF button to
resume standard BODYLight
function.
10.5.6.12.
LED blinks
four times
BODYLight has
changed modes, i.e.
Visible to UVC
Correct function observed.
10.5.6.13.
LED blinks
four times
UVC activation code
accepted.
UVC mode now operative.

SOP Title:
WT-GERM KILLER™ 8910UVC BODYLight™ Operation
Effective Date:
10July2020
SOP Number:
WT-SOP-01007.05
Page: 14 of 17
Western Technology, Inc. Confidential and Proprietary
12. PREVENTIVE MAINTENANCE
12.1. Depending upon the severity of conditions when in use, it is recommended
that you implement a minimum standard preventative maintenance schedule
for the UVC BODYLight and its accessories.
12.2. To maintain compliance for use in Hazardous (Classified) Locations all
components must be in factory original working condition. As such, safety
requires, before and after each use, a thorough visual examination of the unit
and accessories for physical damage that might cause a spark or result in the
ignition of hazardous atmospheres. This examination includes, but is not
limited to, verifying that:
12.2.1. The Light Head of the UVC BODYLight is not cracked, broken, or
breeched.
12.2.2. The Battery Canister for the UVC BODYLight is not cracked, broken, or
breeched.
12.2.3. The Lens is not cracked or chipped.
12.2.4. All Gaskets are in position and not cracked, chipped, or broken.
12.2.4.1. Ensure that the Gasket is in place around the base of the threads
of the Connector on the Battery Canister, Cord Connected
Battery Pack Manifold, and Cord Connected Power Box.
12.2.4.1.1. This Gasket is required to be present and functional for
Explosion Proof certification and usage in Hazardous
(Classified) Locations.
12.2.5. The Bumpers are in good condition and capable of protecting the UVC
BODYLight and the work area if struck by the UVC BODYLight.
12.2.6. If using a cord connected Power Box or Battery Pack Manifold, the
Braided Cable Strain Reliefs are not frayed and are gripping the cord
tightly at all points of cord contact, if applicable.
12.2.7. If using a cord connected Power Box or Battery Pack Manifold, the Cord
Jacket is completely intact and that no internal conductors or conductor
insulation is exposed, if applicable.
12.2.8. If using a cord connected Power Box or Battery Pack Manifold, the
Power Box or Battery Pack Manifold is not cracked, broken, or breeched,
if applicable.
12.2.9. If using a cord connected Power Box, the Cord Plug is not cracked or
damaged and the Ground Post is intact, if applicable.
12.2.10.Maintain all Light surfaces, including glass and Light Body, free from
coatings, paint or debris accumulation.

SOP Title:
WT-GERM KILLER™ 8910UVC BODYLight™ Operation
Effective Date:
10July2020
SOP Number:
WT-SOP-01007.05
Page: 15 of 17
Western Technology, Inc. Confidential and Proprietary
12.2.11.Ensure all electrical contacts on the Light Head, Battery Canister, Battery
Pack Manifold, and Power Box connections are clean and free of any
debris.
12.2.12.Ensure the Bristle Cone is in good condition and properly inserted into
the Bumpers.
12.2.13.It is recommended that periodic cleaning is performed on the Bristle Cone
to prevent transfer or carryover of contaminants from site to site.
12.2.13.1. When cleaning the Bristle Cone use mild soap and warm water.
12.2.13.2. If the Bristle Cone bristles have become brittle or damaged due
to UVC radiation exposure or usage, replace the Bristle Cone
prior to continued operation.
13. PRODUCT ASSISTANCE
13.1. BODYLight Battery Pack Replacement
13.1.1. In general, a Battery Pack will remain operational for approximately
500 charge cycles.
13.1.2. Should a Battery Pack no longer charge, or a replacement is
required, contact Western Technology Customer Service.
13.2. BODYLight Battery Pack Disposal
13.2.1. The Battery Canister contains Li-Ion batteries, which are classified
as hazardous waste and are not safe for disposal in the normal
waste stream.
13.2.2. Western Technology encourages recycling, as these batteries do
contain recyclable materials. In the event of disposal, dispose only in
accordance with federal, state and local regulations.
13.2.3. For assistance in disposal of the Battery Pack, contact Western
Technology.
13.3. Contact Western Technology Customer Service should any assistance be
required in the operation, maintenance, repair, or replacement of any Western
Technology equipment or parts.
13.3.1. Western Technology
3517 Arsenal Way
Bremerton, WA 98312
800-654-5483
www.WesternTechnologyLights.com

SOP Title:
WT-GERM KILLER™ 8910UVC BODYLight™ Operation
Effective Date:
10July2020
SOP Number:
WT-SOP-01007.05
Page: 16 of 17
Western Technology, Inc. Confidential and Proprietary
14. REFERENCES
14.1. U.S. Department of Health and Human Services, “Broad-Spectrum Ultraviolet
(UV) Radiation and UVA, and UVB, and UVC” IUVA News, 2000 December
13-14.
14.2. U.S. Department of Health and Human Services, Food and Drug
Administration, Center for Devices and Radiological Health, “Enforcement
Policy for Sterilizers, Disinfectant Devices, and Air Purifiers During the
Coronavirus Disease 2019 (COVID-19) Public Health Emergency” March
2020.
14.3. Dai T, Vrahas MS, Murray CK, Hamblin MR, “Ultraviolet C irradiation: an
alternative antimicrobial approach to localized infections?” Expert Rev Anti
Infect Ther. 2012 February; 10(2): 185-195.
14.4. Dean SJ, Petty A, Swift S, et al. “Efficacy and safety assessment of a novel
ultraviolet C device for treating corneal bacterial infections.” Clin Experiment
Ophthalmol. 2011; 39(2):156–163. [PubMed: 21105972].
14.5. Beck SE, Ryu H, Bozek LA, et al. “Evaluating UV-C LED disinfection
performance and investigating potential dual-wavelength synergy” 2017
February 1; 109; 207-216.
14.6. Chevrefils G, Caron E, Wright H, Sakamoto G, “UV Dose Required to Achieve
Incremental Log Inactivation of Bacteria, Protozoa and Viruses” 2006 March.
14.7. Buonanno M, Welch D, Shuryak I, Brenner D, “Far-UVC light efficiently and
safely inactivates airborne human coronaviruses” Research Square – In
Review, Version 1, 2020 April 27.
14.8. Beck SE, Rodriguez RA, Hawkins MA, Hargy TM, Larason TC, Linden KG,
“Comparison of UV-Induced Inactivation and RNA Damage in MS2 Phage
across the Germicidal UV Spectrum” Applied and Environmental Microbiology,
March 2016, Vol. 82, No. 5.
14.9. Inagaki H, Saito A, Sugiyama H, Okabayashi T, Fujimoto S, “Rapid
Inactivation of SARS-CoV-2 with Deep-UV LED Irradiation” bioRxiv Letter,
2020 June 7.
14.10.Cyranoski D, “Profile of a Killer Virus” Nature, Vol. 581, 2020 May 07.
14.11. Blatchley III ER, Petri B, Sun W, Rieth LA, “SARS-CoV-2 UV Dose-Response
Behavior” White Paper Prepared for IUVA,
14.12.Bianco A, Biasin M, Pareschi G, et al., “UV-C irradiation is highly effective in
inactivating and inhibiting SARS-CoV-2 replication”medRxiv, 2020 June 23.
14.13. Fischer RJ, Morris DH, Doremalen NV, Sarchette S, Matson MJ, et al.,
“Assessment of N95 respirator decontamination and re-use for SARS-CoV-2”
medRxiv, 2020 April 15. (https://www.consumerlab.com/answers/does-uv-
light-kill-coronavirus/uv-light-covid/)

SOP Title:
WT-GERM KILLER™ 8910UVC BODYLight™ Operation
Effective Date:
10July2020
SOP Number:
WT-SOP-01007.05
Page: 17 of 17
Western Technology, Inc. Confidential and Proprietary
15. HISTORY
Revision No:
Effective Date:
Comments:
00
20May2020
New
01
10Jun2020
Addition of UVC Activation Table Codes
02
12Jun2020
Inclusion of Section 10.5.3.6. UVC Activation/Deactivation Code Mode
03
18Jun2020
Inclusion of Section 7, Theory, and Section 8, Product Description.
04
23Jun2020
Bristle Cone maintenance added.
05
10July2020
Current references added to address COVID-19 inactivation on contact
surfaces.