UVT LED Instruction Manual 134699IM Iss01
User Manual: Pdf 134699IM-Iss01
Open the PDF directly: View PDF 
.
Page Count: 30
FORM: InstrUVT-LED Instruction Manual-09 [Rev: 2016-10-19]
©2016 Sensorex Corporation
PRODUCT INSTRUCTION SHEET
Document Number 480437
UVT-LED Sensor
Installation and Operation Manual
11751 Markon Drive Ph +1(714) 895-4344 sales@sensorex.com
Garden Grove, CA. 92841 USA Fax +1(714) 894-4839 www.sensorex.com
Parts covered by this product instruction sheet include:
UVT-LED-PW, UVT-LED-H, UVT-LED-SW, and all accesso-
ries and mounting hardware
UVT-LED-PWUVT-LED-H
Patent No,: US 8,927,922 B2, Jan. 6, 2015
UVT-LED-SW
Page 1 of 30
PRODUCT INSTRUCTION SHEET
FORM: InstrUVT-LED Instruction Manual-09 [Rev: 2016-10-19]
©2016 Sensorex Corporation
Table of Contents
1. Welcome 4
2. Getting to know your UVT Sensor 4
3. Warnings and Precautions 6
4. Introduction to UV transmittance (UVT) 7
5. UVT-LED Sensor Specications
5.1 Operating Specications 8
5.2 Dimensional Specications 9
6. UVT-LED-PW
6.1 UVT-LED-PW Sensor overview 11
6.2 First Time Setup and Preparation 12
6.2 Cleaning Procedure 13
6.3 Clean in Place (CIP) 13
6.4 Calibration 14
6.5.1 Installation
a) Weld on Flange(UVT0009) 14
b) 2" NPT Adapter (UVT0008, UVT0021) 15
c) 3" Sanitary Tee (UVT0015), 2" Sanitary Tee (UVT0024) 16
d) 2" PVC tee complete assembly (UVT0023) 17
7. UVT-LED-SW
7.1 UVT-LED-SW sensor overview 18
7.2 First Time Setup and Preparation 19
7.3 Cleaning Procedure 20
7.4 Calibration 21
7.5 Taking Readings 21
7.6 Installation 22
8. UVT-LED-H
8.1 Calibration 26
8.3 Taking Measurements 26
8.4 Cleaning 26
Parts covered by this product instruction sheet include:
UVT-LED-PW, UVT-LED-H, UVT-LED-SW, and all accesso-
ries and mounting hardware
Document Number 480437
Page 2 of 30
9. Troubleshooting (-PW & -H) 27
10. Troubleshooting (-SW only) 28
10. Ordering Information 29
11. Product Warranty 30
Table of Contents
PRODUCT INSTRUCTION SHEET
Parts covered by this product instruction sheet include:
UVT-LED-PW, UVT-LED-H, UVT-LED-SW, and all accesso-
ries and mounting hardware
FORM: InstrUVT-LED Instruction Manual-09 [Rev: 2016-10-19]
©2016 Sensorex Corporation
Document Number 480437
Page 3 of 30
PRODUCT INSTRUCTION SHEET
Welcome to Sensorex UVT-LED!
Thank you for choosing our UVT-LED UV-transmittance sensor.
For over forty years, Sensorex has been the preeminent supplier of leading edge technology and inno-
vative products to measure and monitor the quality of water. Today, we remain focused on the con-
tinual advancement of water quality monitoring products and technology. The UVT-LED is the latest
Sensorex innovation and our rst optical-based measurement system designed specically for simple,
reliable UV-transmittance monitoring. The Sensorex UVT-LED is the world’s rst family of UV-T monitors
that uses a UV-C LED instead of a mercury-based lamp as a light-source. The use of a UV-C LED in the
UVT-LED ensures extremely stable readings in all conditions, over an extended lifetime.
READ/CALIBRATE
button
Backlit LCD display
Optics
Wiper
Assembly
1.5”
Sanitary Connection
Getting to know your UVT-LED Sensors
5-Pin Connector
Connects to
UVT0002 cable
assembly (UVT-PW)
or charging cable
(UVT-LED-H)
Product Label
Includes:
Version, Serial No.,
patent information
Page 4 of 30 FORM: InstrUVT-LED Instruction Manual-09 [Rev: 2016-10-19]
©2016 Sensorex Corporation
READ/CALIBRATE
button
Backlit LCD display
Optics
UVT-LED-PW
Used for all on-line applications. Unit is wiped using pat-
ented technology. Use in water with a higher concen-
tration of dissolved and suspended solids.
UVT-LED-H
Used for benchtop and o-line eld
measurements. Unit comes standard
with a rechargable internal battery
and charging cord for cordless opera-
tion.
Parts covered by this product instruction sheet include:
UVT-LED-PW, UVT-LED-H, UVT-LED-SW, and all accesso-
ries and mounting hardware
Document Number 480437
Getting to know your UVT-LED Sensors (cont.)
PRODUCT INSTRUCTION SHEET
UVT-LED-SW
Used for all open channel applications in which the unit is completely submerged. Unit is
wiped using patented technology. Use in water with a higher concentration of dissolved
and suspended solids.
FORM: InstrUVT-LED Instruction Manual-09 [Rev: 2016-10-19]
©2016 Sensorex Corporation
Parts covered by this product instruction sheet include:
UVT-LED-PW, UVT-LED-H, UVT-LED-SW, and all accesso-
ries and mounting hardware
Optics
Wiper
Assembly
UVT-SW cable assembly
1” NPT. Attach to
UVT-SW-004 or -005
mounting hardware
Touch magnet to
this point to
take a reading or
calibrate
UVT-LED-SW
Document Number 480437
Page 5 of 30
Warnings
To avoid risk of damage to monitor, do not
open the device. Refer servicing to qualied
personnel only.
Do not place device in a location near heat
sources, or in a place subject to direct sun-
light, excessive dust or mechanical shock.
Do not operate sensor above 50°C because
this can damage the UV Light source
Monitor contains a UV LED emitting device.
Do not look at the probe of an operating
monitor without wearing proper eye and
skin protection.
Install unit so that power cord is protected
from mechanical damage and can be easily
unplugged from device.
Do not use the provided power/data cord if
it is damaged. Use of a damaged cord may
result in damage to the device or re.
Do not pinch the power/data cord between
heavy objects
Device should only be used with provided
24V DC power supply or used with a site
supplied 24V DC source.
PRODUCT INSTRUCTION SHEET
FORM: InstrUVT-LED Instruction Manual-09 [Rev: 2016-10-19]
©2016 Sensorex Corporation
Parts covered by this product instruction sheet include:
UVT-LED-PW, UVT-LED-H, UVT-LED-SW, and all accesso-
ries and mounting hardware
Document Number 480437
Page 6 of 30
UV-T is a measure of the amount of UV energy remaining after passing through a material (e.g., water
sample or quartz) over a specic distance. UV Absorbance is a measure of the amount of UV light that is
absorbed by a substance (e.g., water, microbial DNA, lamp envelope, quartz sleeve) at a specic wave-
length (e.g., 254 nm). UV-Transmittance is related to UV Absorbance by the following equation (for a 1-
cm path length): % UVT = 100 x 10-A.
UV-Transmittance is typically;
• measured at 254 nm, corresponding to the peak output of mercury-based UV lamps
• measured over a path length of 1-cm
• represented as a percentage
UV-T has a strong eect on the dose delivery of a UV treatment system. As UV-T decreases, the intensity
throughout the reactor decreases, which reduces the dose the treatment system delivers. UV treatment
systems are sized to deliver the required UV dose under specied UV-T conditions for the application.
UV-T will typically vary over time due to changing concentrations of compounds, seasonal eects and
changes in biological activity of microorganisms within the water source.
UV-T monitors are commonly used as an input to a dose control strategy of a UV treatment system,
helping to reduce over or under dosing. They are also used to monitor water quality to help diagnose
operational problems.
PRODUCT INSTRUCTION SHEET
Introduction
Water with a measured value of 90% UV-T, demonstrating the rate in which
available UV light degrades, as distance from light source increases
FORM: InstrUVT-LED Instruction Manual-09 [Rev: 2016-10-19]
©2016 Sensorex Corporation
Parts covered by this product instruction sheet include:
UVT-LED-PW, UVT-LED-H, UVT-LED-SW, and all accesso-
ries and mounting hardware
Document Number 480437
Page 7 of 30
Measurement Technique: UV absorption method (single beam technique), reagent-free
Measurement Wavelength
/Pathlength: 254nm/1cm
Measurement Range: 10 -100% UV transmittance (UVT)
Accuracy: +/- 1.0% T (full scale)
Resolution: 0.1% T
Sample Flow Rate/
Maxium Pressure: n/a, 150psig
Display: LCD with LED backlight
Measuring Interval: 60 seconds (UVT-LED-PW & -SW only)
Inspection Interval: 6 months(UVT-LED-PW & -SW only)
User Maintenance: 1hr/month typical
Power Supply: 20-28V DC, maximum 200Ohm load, customer supplied (UVT-LED-PW & -SW)
24V DC to charge battery (UVT-LED-H)
Output: 0-100% UVT (UVT-LED-H-WD, UVT-LED-H-NA only)
4-20mA (UVT-LED-PW & -SW)
Temperature Range: 32-122 °F (0-50 °C)
Weight: UVT-LED-H - 0.78lbs (353g), UVT-LED-PW - 1.58lbs (717g), UVT-LED-SW
- 1.78lbs(807g)
Dimensions: 7.60"H x 2.60" cap x 1.25" probe (19.1cm H x 6.4cm Dia) - UVT-LED-H & -PW
only, 9.4"H x 3.00" cap x 1.25" probe (23.9cm H x 7.6cm Dia)
IP Ingress Rating: IP66 housing, IP68 measurement head
Certications: CE
Warranty: 2 Year Limited Warranty
PRODUCT INSTRUCTION SHEET
Specications
FORM: InstrUVT-LED Instruction Manual-09 [Rev: 2016-10-19]
©2016 Sensorex Corporation
Parts covered by this product instruction sheet include:
UVT-LED-PW, UVT-LED-H, UVT-LED-SW, and all accessories
and mounting hardware
Document Number 480437
Page 8 of 30
PRODUCT INSTRUCTION SHEET
FORM: InstrUVT-LED Instruction Manual-09 [Rev: 2016-10-19]
©2016 Sensorex Corporation
Outline and Dimensions
FRONT
LEFT RIGHT REAR
7.60”
(193 mm)
2.60”
(66 mm)
UV-C
LED
Light
source
photo-
diode
detector
% UVT display
READ/CALIBRATE
button
Product
label with
Serial
Number &
Version
Number
5-pin connector for
charging cable
1.25”
(32 mm)
UVT-LED-H
FRONT
LEFT RIGHT REAR
7.60”
(193 mm)
1.25”
(32mm)
2.60”
(66 mm) % UVT display
READ/CALIBRATE
button
Product label with
Serial Number &
Version Number
5-pin connector for
charging cable
Wiper
assembly
2 inch sanitary
(seal provided
with installation
ttings)
2.00”
(50mm)
3.00”
(76 mm)
UV-C
LED Light
source
photodiode
detector
ange tting
UVT-LED-PW
Parts covered by this product instruction sheet include:
UVT-LED-PW, UVT-LED-H, UVT-LED-SW, and all accessories
and mounting hardware
Document Number 480437
Page 9 of 30
Outline and Dimensions(cont.)
PRODUCT INSTRUCTION SHEET
UVT-LED-SW
Top View of 8-Pin
connector
3.5”
(89mm)
5.9”
(150mm)
O-rings to seal against
UVT-SW-001,
-002 or -003
1.25”
(31.8mm)
3.00”
(76mm)
9.4”
(239mm)
Threads to attach
UVT-LED-SW cable
using knurled nut
Touch magnet
provided to this
surface to activate and
calibrate the sensor 5.0”
(127mm)
1.43”
(36.3mm)
Knurled nut to attach
cable to UVT-LED-SW
sensor.
1” NPT thread.
Connect to
UVT-SW-004 or
UVT-SW-005
mounting hardware
Cable cord grip
3-conductor cable
UVT-SW-001 = 10mtr
UVT-SW-002 = 20mtr
UVT-SW-003 = 30mtr
UVT-SW-001, -002, -003
FORM: InstrUVT-LED Instruction Manual-09 [Rev: 2016-10-19]
©2016 Sensorex Corporation
Parts covered by this product instruction sheet include:
UVT-LED-PW, UVT-LED-H, UVT-LED-SW, and all accesso-
ries and mounting hardware
Page 10 of 30 Document Number 480437
Overview (-PW)
The Sensorex UVT-LED-PW can be used in open or closed water systems, for either continuous on-line
measurement of a process, or o-line samples, of any type of water, including wastewater and drinking
water. This patented UV-T monitoring device includes a UV-C LED light source, a UV sensor and wipers
attached to a rotating measuring head.
It is operated by placing the measurement head into a water sample. The water sample may be station-
ary or owing. The water sample ows through the measurement head, in between the UV light source
and the UV sensor. The UV sensor measures the amount of UV light that the UV sensor is exposed to,
measuring the amount of UV light that passes through the uid sample. After the UV measurement of
the water sample is collected, a quartz cylinder having a known UVT value is moved in between the
UV light source and the UV sensor and another measurement is taken. By comparing the UV measure-
ment taken through the quartz cylinder and the UV measurement taken through the uid sample, a
UVT value for the uid is determined. In addition a third measurement is taken with the UV light source
powered o providing a zero point calibration measurement for the UV sensor.
When the quartz cylinder is rotated into a position between the UV light source and the UV sensor, a
wiper, attached to the rotating mechanism, wipes the windows in between the UV light source and the
water sample and the UV sensor and the water sample, thus removing any contaminants or buildup of
constituents from the water sample on the windows. See FIG. 1.
UVT-LED-PW
PRODUCT INSTRUCTION SHEET
UV-C
Light Source Quartz Cylinder
Wiper UV sensor
Measurement
Head
FORM: InstrUVT-LED Instruction Manual-09 [Rev: 2016-10-19]
©2016 Sensorex Corporation
FIG. 1
Parts covered by this product instruction sheet include:
UVT-LED-PW, UVT-LED-H, UVT-LED-SW, and all accesso-
ries and mounting hardware
Document Number 480437
Page 11 of 30
PRODUCT INSTRUCTION SHEET
UVT-LED-PW
First Time Setup and Preparation
Step 1 - Unpacking your UVT-LED-PW
Make sure you have all parts in the box. Review the Packing List included in the product box for
details.
Step 2: Cable Assembly Preparation
A 10meter (33ft) cable assembly is included with each UVT-LED-PW (see FIG 2.) 1 inch of the cable
jacket is stripped o for your convenience (see FIG 3). If you want longer leads, remove as much of the
gray cable covering to reveal the length of wire you require. Next, strip the red, black ,and white wire tips
to desired length and tin with solder to prevent wirings from fraying. Trim o braided shield and string
ller even to cable jacket.
Step 3 - Powering your UVT-LED-PW
Connect the 5-pin connector from cable assembly UVT0002 to 5-pin connector on UVT-LED-PW
and rotate the knurled part of the conenctor until connection is complete (see FIG 4.). Wire the stripped
end of the cable RED, WHITE, BLACK wires to your 4-20mA input device as shown in FIG 5. The LCD
display will illuminate and will display "0" and then will take a reading within 10 seconds after the wiper
actuates (you will hear a "click" sound).
5-pin connector of
UVT0002 cable
FIG. 2 FIG. 3
FIG. 4 FIG. 5
FORM: InstrUVT-LED Instruction Manual-09 [Rev: 2016-10-19]
©2016 Sensorex Corporation
11751 Markon Drive Ph +1(714) 895-4344 sales@sensorex.com
Garden Grove, CA. 92841 USA Fax +1(714) 894-4839 www.sensorex.com
Parts covered by this product instruction sheet include:
UVT-LED-PW, UVT-LED-H, UVT-LED-SW, and all accesso-
ries and mounting hardware
Document Number 480437
Page 12 of 30
PLC
24V
DC
+
_
+
White
Black
-
Red
Current Signal(4-20mA)
Analog current +
GND
UVT-LED-PW
Cleaning Procedure
Cleaning with Deionized water is recommended every 30days followed by recalibration o-line.
When fouling of the quartz windows are suspected, the Sensorex UVT-LED-PW should be cleaned according
to the following procedure:
1) Remove Sensorex UVT-LED-PW from the process.
2) Fill up a small container with a 15-20% solution of phosphoric acid (e.g. Calcium Lime and Rust remover -
CLR) or food grade citric acid. Fill container high enough to completely submerge the measuring portion of
the tip in the 15-20% solution of phosphoric acid or food grade citric acid (see FIG. 6).
3) While the unit is still powered, allow unit to soak for 30 minutes.
4) After 30 minute soak, rinse measuring tip with de-ionized water to rinse o excess cleaning solution.
5) Fill container with isopropanol, high enough to fully submerge measuring tip.
6) Submerge Measuring tip in isopropanol for 10 minutes while unit is powered on.
7) Using the UVT-LED cleaning swab (part #UVT0011), gently clean the quartz
measuring windows in front of the sensor and the UV-C light source.
8) Place unit in de-ionized water high enough to fully submerge measuring tip.
9) Submerge measuring tip in de-ionized water for 10 minutes.
10) Re-calibrate monitor according to recalibration procedure.
Clean In Place (CIP)
When performing a CIP with the Sensorex UVT-LED-PW, the temperature of the water should not exceed
50˚ C. If the temperature exceeds 50˚ C, then the Sensorex UVT-LED-PW should have power removed.
Operating the Sensorex UVT-LED-PW above temperatures of 50˚ C can damage the UV-C LED.
PRODUCT INSTRUCTION SHEET
Fill all solutions above level
shown with red arrow
FIG. 6
FORM: InstrUVT-LED Instruction Manual-09 [Rev: 2016-10-19]
©2016 Sensorex Corporation
11751 Markon Drive Ph +1(714) 895-4344 sales@sensorex.com
Garden Grove, CA. 92841 USA Fax +1(714) 894-4839 www.sensorex.com
UVT-LED-PW
Parts covered by this product instruction sheet include:
UVT-LED-PW, UVT-LED-H, UVT-LED-SW, and all accesso-
ries and mounting hardware
Document Number 480437
Page 13 of 30
PRODUCT INSTRUCTION SHEET
UVT-LED-PW
Calibration
Calibration should be done every 30 days after cleaning with deionized water. It is also recommended to
verify sensor accuracy weekly using a hand-held UVT-LED-H sensor.
Step 1 - Place your UVT-LED-PW into de-ionized (DI) water.
Make sure it is inserted as shown in FIG 7 so that it is above the opening for the wiper and LED.
Shake to remove air bubbles.
Step 2 - Press and hold the "READ/CAL" button for at least 3 seconds as shown in FIG 8.
!
USE
DE-IONIZED WATER
ONLY
FIG. 7 FIG. 8
Installation
The UVT-LED-PW can mount into a few dierent installation types:
A) Weld on SS316 sanitary ange adapter (UVT0009) to pipe.
Weld #4 to pipe --> Install #2 into groove on top of #4 --> Insert #1 (UVT-LED-PW) into #4 --> Clamp in
place with #3 by installing clamp around #4 and ange of #1, then tighten wing nut of #3 until tight and
no leaking occurs. (see FIG. 9)
FIG. 9
FORM: InstrUVT-LED Instruction Manual-09 [Rev: 2016-10-19]
©2016 Sensorex Corporation
11751 Markon Drive Ph +1(714) 895-4344 sales@sensorex.com
Garden Grove, CA. 92841 USA Fax +1(714) 894-4839 www.sensorex.com
Parts covered by this product instruction sheet include:
UVT-LED-PW, UVT-LED-H, UVT-LED-SW, and all accesso-
ries and mounting hardware
Document Number 480437
Page 14 of 30
FIG. 10
PRODUCT INSTRUCTION SHEET
Installation Cont.
B) 2" NPT threaded adapter (UVT0008 - SS316, UVT0021 - PVC).
Apply threaded sealing tape or paste to threads of #4 --> Thread #4 into #5 (customer supplied) --> Install
#3 gasket into groove of #4. --> Insert #1(UVT-LED-PW) into #4 --> Clamp in place with #2 by installing
clamp around #4 and ange of #1 then tighten wing nut of #2 until tight and no leaking occurs (see FIG.
10). FIG 11 shows part detail.
FORM: InstrUVT-LED Instruction Manual-09 [Rev: 2016-10-19]
©2016 Sensorex Corporation
11751 Markon Drive Ph +1(714) 895-4344 sales@sensorex.com
Garden Grove, CA. 92841 USA Fax +1(714) 894-4839 www.sensorex.com
UVT-LED-PW
Parts covered by this product instruction sheet include:
UVT-LED-PW, UVT-LED-H, UVT-LED-SW, and all accesso-
ries and mounting hardware
1.99”
Groove for
sanitary
gasket
2” male NPT
thread
Wrench ats
x4
1.5” Sanitary
ange
FIG. 11
Document Number 480437
Page 15 of 30
PRODUCT INSTRUCTION SHEET
Installation Cont.
C) 3" Sanitary tee kit (UVT0015) - refer to FIG. 12. 2" Sanitary tee kit (UVT0024) refer to FIG 12
Install #5 (x2) to grooves of #4 --> Install #6 (x2) to 4 with #5 (gasket) in-between --> Use clamp #7 (x2) to
hold #6 (x2) to #4. Install #3 into groove on top of #4. Insert #1 into #4 . Clamp #2 around #1 and #4 and
tighten using wing nut of #2 until #1 is installed tightly (no leaks) into #4. Thread #8 (x2) into #6 (x2) using
sealing tape or paste to avoid leaks. It is recommended to install this into a bypass loop with valves on each
side of the assembly and a ow meter on the inlet side. See FIG 13.
FIG. 12
1.
2.
1. UVT-LED-PW sensor
2. 1.5” Sanitary clamp
3. 1.5”Sanitary gasket
4. Sanitary tee (3“(UVT0015),
2”(UVT0024))
5. Sanitary gasket x2 (3“(UVT0015),
2”(UVT0024))
6. Flange cap x2 (3“(UVT0015),
2”(UVT0024))
7. Sanitary clamp x2 (3“(UVT0015),
2”(UVT0024))
8. 1/4” NPT Barbed tting x2
3.
4.
5.
6.
7.
6.
8.
FIG. 13
FORM: InstrUVT-LED Instruction Manual-09 [Rev: 2016-10-19]
©2016 Sensorex Corporation
UVT-LED-PW
Parts covered by this product instruction sheet include:
UVT-LED-PW, UVT-LED-H, UVT-LED-SW, and all accesso-
ries and mounting hardware
Valve
Flow meter
Suggested By-pass Installation
for UVT-LED-PW Sensor
Main line
Flow
To drain
(UVT0023 only)
Back to
main line
(UVT0015 only)
UVT0015 (3”)
UVT0024 (2’)
UVT-LED-PW
Sensor
1.5” Sanitary
Clamp (included
with UVT0015 &
UVT0024)
Sensor + Flow Cell
(UVT0015 or UVT0023)
1.5” Sanitary
Clamp (included
with UVT0023)
UVT-LED-PW
Sensor
UVT0023
Document Number 480437
Page 16 of 30
PRODUCT INSTRUCTION SHEET
Installation Cont.
D) 2" NPT PVC tee kit (UVT0023) - refer to FIG. 12
Note: Use sealing tape or paste on all threaded connections to avoid leaks.
Thread #6 (x2) into #5 --> Thread #7 (x2) into #6 (x2) --> Thread #8 (x2) into #7 (x2). Thread #4 into #5.
Install #3 into groove on top of #4. Insert #1 into #4 . Clamp #2 around #1 and #4 and tighten using
wing nut of #2 until #1 is installed tightly (no leaks) into #4. It is recommended to install this into a by-
pass loop with valves on each side of the assembly and a ow meter on the inlet side. See FIG 13. See
FIG 14 for all parts inluded in UVT0023. Suggested mounting orientation is shown in FiG 15.
FIG. 14
1.
2.
3.
1. UVT-LED-PW sensor
2. 1.5” Sanitary clamp
3. 1.5”Sanitary gasket
4. 2“ PVC adapter
5. 2” NPT PVC SCH 80 TEE
6. 2“ x 1/2” PVC reducer
7. 1/2“ x 1/4” reducer
8. 1/4” NPT to barb quick
disconnect tting
4.
5.
6. 7. 8.
UVT-LED-PW
Parts covered by this product instruction sheet include:
UVT-LED-PW, UVT-LED-H, UVT-LED-SW, and all accesso-
ries and mounting hardware
FORM: InstrUVT-LED Instruction Manual-09 [Rev: 2016-10-19]
©2016 Sensorex Corporation
20 DEG
Wall or
panel
Mounting
Strap x 2
UVT0023
ow cell
UVT-LED-PW
sensor
FIG. 15
Position Wiper slot
upward and
perpedicular to ow.
Document Number 480437
Page 17 of 30
PRODUCT INSTRUCTION SHEET
Parts covered by this product instruction sheet include:
UVT-LED-PW, UVT-LED-H, UVT-LED-SW, and all accesso-
ries and mounting hardware
FORM: InstrUVT-LED Instruction Manual-09 [Rev: 2016-10-19]
©2016 Sensorex Corporation
Overview (-SW)
The Sensorex UVT-LED-SW is designed for use in open channel/submersion UVT monitoring of any type
of water, including wastewater and drinking water. This patented UV-T monitoring device includes a
UV-C LED light source, a UV sensor and wiper attached to a rotating measuring head.
It is operated by submerging the sensor mounted to installation hardware into a owing water chan-
nel. The water sample ows through the measurement head, in between the UV light source and the
UV sensor. The UV sensor measures the amount of UV light that the UV sensor is exposed to, measuring
the amount of UV light that passes through the uid sample. After the UV measurement of the water
sample is collected, a quartz cylinder having a known UVT value is moved in between the UV light
source and the UV sensor and another measurement is taken. By comparing the UV measurement taken
through the quartz cylinder and the UV measurement taken through the uid sample, a UVT value for
the uid is determined. In addition a third measurement is taken with the UV light source powered o
providing a zero point calibration measurement for the UV sensor.
The sensor is calibrated by actuating with a magnet and placing in a sample of DI water. Measurements
are taken by actuating the sensor again with a magnet and then measurements are automatic every 1
minute and are output as 4-20mA scaled to 0-100% UVT.
When the quartz cylinder is rotated into a position between the UV light source and the UV sensor, a
wiper, attached to the rotating mechanism, wipes the windows in between the UV light source and the
water sample and the UV sensor and the water sample, thus removing any contaminants or buildup of
constituents from the water sample on the windows. See FIG. 1. Note that UVT-LED-SW does not have a
display but all other components match FIG 1.
UVT-LED-SW
Document Number 480437
Page 18 of 30
PRODUCT INSTRUCTION SHEET
Parts covered by this product instruction sheet include:
UVT-LED-PW, UVT-LED-H, UVT-LED-SW, and all accesso-
ries and mounting hardware
FORM: InstrUVT-LED Instruction Manual-09 [Rev: 2016-10-19]
©2016 Sensorex Corporation
UVT-LED-SW
First Time Setup and Preparation
Step 1 - Unpacking your UVT-LED-SW
Make sure you have all parts in the box. Review the Packing List included in the product box for details.
Your UVT-LED-SW sensor is supplied with an alcohol cleaning swab and a 10mtr cable (UVT-SW-001).
Step 2: Cable Assembly Preparation: A 10meter (33ft) cable assembly is included with each UVT-LED-
SW. Assemble the cable to the 1" adapter of the UVT-SW mounting assembly. After the assembly is com-
pletely mounted then attach the sensor to the cable by aligning the connector parts and tightening the
knurled nut clockwise until it stops (FIG 16). 1 inch of the cable jacket is stripped o for your convenience
(see FIG 3). If you want longer leads, remove as much of the gray cable covering to reveal the length of
wire you require. Next, strip the brown, white, and green wire tips to desired length and tin with solder to
prevent wirings from fraying. Trim o braided shield and string ller even to cable jacket.
Step 3 - Powering your UVT-LED-SW
After the cable assembly has been connected to the
UVT-LED-SW in step 2, wire the stripped and of the cable
BROWN, WHITE, GREEN wires to your 4-20mA input device
as shown in FIG 17.
FIG. 16
FIG. 17
PLC
24V
DC
+
_
+
Brown
White
-
Green
Current Signal(4-20mA)
Analog current +
GND
UVT-LED-SW
Document Number 480437
O-rings to seal
against
UVT-SW-001,
-002 or -003
Threads to
attach
UVT-SW cable
using knurled
nut
Knurled nut to attach cable to
UVT-LED-SW sensor
STEP 1: Align connector from
UVT-SW cable with
connector of UVT-LED-SW
STEP 2: Rotate knurled nut
clockwise to tighten
UVT-SW cable to
UVT-LED-SW sensor
UVT-SW cable
UVT-LED-SW sensor
Page 19 of 30
Cleaning Procedure
Cleaning with Deionized water is recommended every 30days followed by recalibration o-line.
When fouling of the quartz windows are suspected, The Sensorex UVT-LED-SW should be cleaned according
to the following procedure:
1) Remove Sensorex UVT-LED-SW from the process.
2) Fill up a small container with a 15-20% solution of phosphoric acid (e.g. Calcium Lime and Rust remover -
CLR) or food grade citric acid. Fill container high enough to completely submerge the measuring portion of
the tip in the 15-20% solution of phosphoric acid or food grade citric acid (see FIG. 18).
3) While the unit is still powered, allow unit to soak for 30 minutes.
4) After 30 minute soak, rinse measuring tip with de-ionized water to rinse o excess cleaning solution.
5) Fill container with isopropanol, high enough to fully submerge measuring tip.
6) Submerge measuring tip in isopropanol for 10 minutes while unit is powered on.
7) Using the UVT-LED cleaning swab (part #UVT0011), gently clean the quartz
measuring windows in front of the sensor and the UV-C light source.
8) Place unit in de-ionized water high enough to fully submerge measuring tip.
9) Submerge measuring tip in de-ionized water for 10 minutes.
10) Re-calibrate monitor according to recalibration procedure.
PRODUCT INSTRUCTION SHEET
UVT-LED-SW
Parts covered by this product instruction sheet include:
UVT-LED-PW, UVT-LED-H, UVT-LED-SW, and all accesso-
ries and mounting hardware
FORM: InstrUVT-LED Instruction Manual-09 [Rev: 2016-10-19]
©2016 Sensorex Corporation
Fill all solutions above level
shown with red arrow
FIG. 18
Document Number 480437
Page 20 of 30
PRODUCT INSTRUCTION SHEET
UVT-LED-SW
Parts covered by this product instruction sheet include:
UVT-LED-PW, UVT-LED-H, UVT-LED-SW, and all accesso-
ries and mounting hardware
FORM: InstrUVT-LED Instruction Manual-09 [Rev: 2016-10-19]
©2016 Sensorex Corporation
Calibration
Calibration should be done every 30 days after cleaning with deionized water. It is also recommended to
verify sensor accuracy weekly using a hand-held UVT-LED-H sensor.
Step 1 - Place your UVT-LED-SW into de-ionized (DI) water.
Make sure it is inserted as shown in FIG 19 so that it is above the opening for the wiper and LED.
Shake to remove air bubbles.
Step 2 - Hold Magnet over white dot sensor actuation location for at least 3 seconds as shown in
FIG 19. Wait for wiper to click. Remove magnet.
At completion of calibration, UVT-LED-SW will beep 7x.
FIG. 19
Taking Readings
Your UVT-LED-SW sensor will take readings every 1 minute after actuation of the wiper once the sensor is
calibrated. You can take a reference reading at any time. To do this:
Step 1 - Place your UVT-LED-SW into a sample of your water.
Make sure it is inserted as shown in FIG 18 so that it is above the opening for the wiper and LED.
Shake to remove air bubbles.
Step 2 - Hold Magnet over white dot sensor actuation location as shown in FIG 19.
Wait for 1 second. Remove magnet. UVT-LED-SW will beep 1x after reading is taken.
Document Number 480437
Page 21 of 30
Installation
The UVT-LED-SW is designed for submersion mounting. Mounting hardware options include:
1. UVT-SW-005: Complete installation kit that attaches to wall of channel. See below and follwing
pages for instructions and FIGURE references.
2. UVT-SW-004: Retrot installation kit that attaches to existing installation brackets from
other suppliers that require 1 1/4" pipe. See FIG 32 for description of hardware.
PRODUCT INSTRUCTION SHEET
UVT-LED-SW
Parts covered by this product instruction sheet include:
UVT-LED-PW, UVT-LED-H, UVT-LED-SW, and all accesso-
ries and mounting hardware
FORM: InstrUVT-LED Instruction Manual-09 [Rev: 2016-10-19]
©2016 Sensorex Corporation
FIG. 20 FIG. 21
Note: Suggested sensor orientation is parallel
to ow with wiper oriented upward.
Document Number 480437
Concrete
Channel
Wall
Water
Level
UVT-LED-SW sensor
FLOW
>1ft(0.3mtr)
SS 90 deg
Elbow 1.5 “
threaded
SS 1.5” to 1”
reducer
UVT-SW-001 cable
1.5” threaded
plastic top cap
with 3/8” NPT
cord grip
UVT-SW cable
pipe clamp x 2
6ft L SS 1.5”
threaded
pipe
FLOW
Wall of open channel
UVT-LED-SW sensor
Wall Mounting
Bracket x 2 (installed on
wall clamp with anchor bolt
and washer)
Note: Suggested sensor
orientation is parallel to
ow with wiper oriented
upward
Page 22 of 30
PRODUCT INSTRUCTION SHEET
UVT-LED-SW
Installation (cont.)
1) UVT-SW-005 step by step installation procedure:
A) Attach provided steel 90 degree elbow to pipe with sealing tape or paste (see FIG 22)
B) Atttach 1.5" x 1" reducing tting to elbow with sealing tape or paste (see FIG 23)
C) Attach UVT-SW cable assembly to reducer (1” threads on both) and seal with sealing tap or paste. See FIG 24
C) Feed cable up through pipe and insert into top cap/cord grip assembly. Make sure cord grip is loose when
feeding cable through. See FIG 25.
D) Seal top cap onto pipe (make sure cord grip is loose). See FIG 26.
E) Tighten cord grip after applying some slack to cable. See FIG 27.
F) Attach brackets x 2 to pipe. Make sure bolts are not too tight so the brackets can be adjusted up or down
the pipe to the correct height and spacing. Spacing will depend on wall bracket height and distance apart.
G) Attach wall mounting brackets to concrete wall in channel using customer supplied concrete anchor bolts.
Note that assembly weighs 33lbs(15kg). Holes in wall mounting bracket are 0.65” (16mm) OD. See FIG 28.
H) Remove pins from brackets. See FIG. 29
I) Slide pipe assembly onto the wall mounting brackets. See FIG. 30.
J) Adjust pipe depth into water so that UVT-LED-SW measurement pathway is fully submerged.
K) Tighten bolts on pipe clamps to hold in position.
L) Reinstall locking pins into wall mount brackets. See FIG. 31
M) To remove sensor for maintenance, remove the 2 locking pins and slide the pipe/assembly out of wall
bracket channels.
Parts covered by this product instruction sheet include:
UVT-LED-PW, UVT-LED-H, UVT-LED-SW, and all accesso-
ries and mounting hardware
FORM: InstrUVT-LED Instruction Manual-09 [Rev: 2016-10-19]
©2016 Sensorex Corporation
FIG. 22
Document Number 480437
SS 1.5” to 1”
reducer
90 deg SS
elbow 1.5”
Seal with Tape
or paste
SS 1.5” to 1”
reducer
90 deg SS
elbow 1.5”
Seal with Tape
or paste
Seal with Tape or paste
FIG. 23
FIG. 24
Page 23 of 30
PRODUCT INSTRUCTION SHEET
UVT-LED-SW
Parts covered by this product instruction sheet include:
UVT-LED-PW, UVT-LED-H, UVT-LED-SW, and all accesso-
ries and mounting hardware
FORM: InstrUVT-LED Instruction Manual-09 [Rev: 2016-10-19]
©2016 Sensorex Corporation
Document Number 480437
Seal with Tape or paste
FIG. 25
1.5” threaded plastic top
cap with 3/8” NPT
cord grip
Loosen nut on cord grip to
feed cable through
Tighten
cord grip
Concrete
Channel
Wall
Water
Level
FLOW
>1ft(0.3mtr)
Wall anchor bolts(customer
supplied) must be rated to
support >30 lbs(14 kg), 2 each
per bracket. Mount brackets
above expected water level.
Concrete
Channel
Wall
Water
Level
FLOW
Concrete
Channel
Wall
Water
Level
FLOW
Concrete
Channel
Wall
Water
Level
FLOW
WRAP LOOP
AROUND
BOTTOM OF PIN
FIG. 26 FIG. 27 FIG. 28
FIG. 29 FIG. 30 FIG. 31
Page 24 of 30
PRODUCT INSTRUCTION SHEET
UVT-LED-SW
Parts covered by this product instruction sheet include:
UVT-LED-PW, UVT-LED-H, UVT-LED-SW, and all accesso-
ries and mounting hardware
FORM: InstrUVT-LED Instruction Manual-09 [Rev: 2016-10-19]
©2016 Sensorex Corporation
Installation (cont.)
2) UVT-SW-004: Retrot installation kit that attaches to existing installation brackets from
other suppliers that require 1 1/4" pipe. See FIG 32 for description of hardware.
Refer to FIG 22 - 27 for assembly procedure. After assembling, attach to existing clamps in place of 1.25"
pipe from other supplier.
FIG. 32
Document Number 480437
Page 25 of 30
SS 90 deg
Elbow
1.25“
SS 1.25” to
1” reducer
UVT-LED-SW sensor
(attached to UVT-SW cable)
Threaded plastic
top cap with 3/8”
NPT cord grip
UVT-SW cable
6ft L SS
1.25”
threaded
pipe
Note: Suggested sensor
orientation is parallel to
ow with wiper oriented
upward
Suggested orientation is
with wiper opening
facing upward and
parallel to ow or up to
45 degrees to ow
FORM: InstrUVT-LED Instruction Manual-09 [Rev: 2016-10-19]
©2016 Sensorex Corporation
PRODUCT INSTRUCTION SHEET
UVT-LED-H
Calibration
Step 1 - Place your UVT-LED-H into de-ionized (DI) water.
Make sure it is inserted as shown in FIG 33 so that it is above the opening for UV light source. Shake the
sensor to remove bubbles. Remove from water and check for bubbles outside of the DI water. Re-insert into water
if no bubbles are seen.
Step 2 - Press and hold the "READ/CAL" button for at least 3 seconds as shown in FIG 34 (Make sure LOW
BATTERY indicator is not on before taking measurement). See FIG 35.
The display will ash blue 7x after calibrating. When the display reads >99.8%, calibration is complete. This should
take approxiamtely 10 seconds.
!
USE
DE-IONIZED WATER
ONLY
FIG. 33 FIG. 34
Taking Meausurements
Step 1 - Place your UVT-LED-H into the water sample you want to measure the for UVT.
Make sure it is inserted as shown in FIG 33 so that it is above the opening for UV light source. Shake the
sensor to remove bubbles. Remove from water and check for bubbles outside of the DI water. Re-insert into water
if no bubbles are seen.
Step 2 - Reference measurment. Press the "READ/CAL" button and release when the screen ashes 1x. This is
done to ensure no bubbles are on the measuring surface.
Step 3 - When the screen ashes 2x then the sensor is ready to take a new reading (new readings can only be
taken 30 seconds after the previous reading)
Using the Sensorex UVT-LED cleaning swab (part #UVT0011) gently clean the quartz measuring windows in front of
the sensor and the UV-C light source.
Place unit in de-ionized water high enough to fully submerge measuring tip. Submerge measuring tip in de-ionized
water tor for 10 minutes, according to recalibration procedure.
Cleaning
FIG. 35
Parts covered by this product instruction sheet include:
UVT-LED-PW, UVT-LED-H, UVT-LED-SW, and all accesso-
ries and mounting hardware
Document Number 480437
Page 26 of 30
PRODUCT INSTRUCTION SHEET
Troubleshooting (UVT-LED-H & -PW)
FORM: InstrUVT-LED Instruction Manual-09 [Rev: 2016-10-19]
©2016 Sensorex Corporation
Parts covered by this product instruction sheet include:
UVT-LED-PW, UVT-LED-H, UVT-LED-SW, and all accesso-
ries and mounting hardware
Fault Possible Solution
UVT-LED will not switch on - Check connections in power cabinet to ensure 24V DC is being supplied.
- Check 5-pin connector on back of sensor to make sure it is securely attached.
- During measurement an air bubble may have been present in the measurement
area. Ensure no air bubbles are present and repeat the measurement.
UVT reading is lower than expected - On battery-operated models, battery is low and unit should be plugged in to
recharge battery. You can take measurements while UVT-LED-H is charging.
- Follow cleaning procedure on page 13 (-PW), 22 (-H) to remove materials that may
foul the sensor.
- Unit needs to be recalibrated accoring to outlined calibration procedure.
- Make sure ow cell/pipe is full enough to completely submerge the measurement
pathway. If not, adjust orientation.
UVT reading is higher than expectecd - During calibration, an air bubble may have been present in the measurement area.
Recalibrate unit.
- Follow cleaning procedure.
- Make sure ow cell/pipe is full enough to completely submerge the measurement
pathway. If not, adjust orientation.
UVT reading is not being transmitted - Check to make sure the 4-20mA signal loop has an external power source.
to plant controls (UVT-LED-PW ONLY)
- Ensure signal wires are connected per wiring diagram.
- Check 5-pin connector on back of sensor to make sure it is securely attached.
Analog scaling is not correct (-PW) - Scaling should be set up for 4mA = 0% UVT and 20mA = 100% UVT.
`
UVT reading is ZERO - During measurement an air bubble may have been present in the measurement
area. Ensure no air bubbles are present and repeat the measurement.
- Follow cleaning procedure.
- Recalibrate unit.
- LED or sensor has stopped working. Return for repair.
- Water has high absorbance and is not allowing UV-C light to pass through.
Wiper Mechanism does not return - Return sensor to supplier for repair/replacement to home position during cycle
(-PW).
Document Number 480437
Page 27 of 30
Troubleshooting (UVT-LED-SW)
PRODUCT INSTRUCTION SHEET
FORM: InstrUVT-LED Instruction Manual-09 [Rev: 2016-10-19]
©2016 Sensorex Corporation
Parts covered by this product instruction sheet include:
UVT-LED-PW, UVT-LED-H, UVT-LED-SW, and all accesso-
ries and mounting hardware
Fault Possible Solution
UVT-LED-SW will not switch on - Check connections in power cabinet to ensure 24V DC is being supplied.
- Place magnet over white dot sensor actuation location and wait for wiper
to actuate.
- During measurement an air bubble may have been present in the measurement
UVT reading is lower than expected area. Ensure no air bubbles are present and repeat the measurement.
- Follow cleaning procedure to remove materials that may foul the sensor.
- Unit needs to be recalibrated accoring to outlined calibration procedure.
UVT reading is higher than expectecd - During calibration, an air bubble may have been present in the measurement area,
Recalibrate unit.
- Follow cleaning procedure on page 20.
UVT reading is not being transmitted - Check to make sure the 4-20mA signal loop has an external power source.
to plant controls
- Ensure signal wires are connected per wiring diagram.
Analog scaling is not correct (-PW) - Scaling should be set up for 4mA = 0% UVT and 20mA = 100% UVT.
UVT reading is ZERO - During measurement an air bubble may have been present in the measurement
area. Ensure no air bubbles are present and repeat the measurement.
- Follow cleaning procedure.
- Recalibrate unit.
- LED or sensor has stopped working. Return for repair.
- Water has high absorbance and is not allowing UV-C light to pass through.
Wiper Mechanism does not return - Return sensor to supplier for repair/replacement.
to home position during cycle (-PW)
3 beeps from sensor indicate a failure for the UVT-LED-SW. See chart below for faults and possible solutions.
Document Number 480437
Page 28 of 30
Ordering Information
PRODUCT INSTRUCTION SHEET
FORM: InstrUVT-LED Instruction Manual-09 [Rev: 2016-10-19]
©2016 Sensorex Corporation
Part Number Description
UVT-LED-PW In-line Mount Process UV Transmittance Monitor (with wiper/auto cal.), 10m (33 ft), cleaning swab
UVT-LED-SW Submersion Mount Process UV Transmittance Monitor (with wiper/auto cal.), includes 10m(33ft) detachable cable, cleaning swab
UVT-LED-H-WD Handheld, Off-Line Transmittance Monitor with power supply (outside of North America), case, cleaning swab x 1
UVT-LED-H-NA Handheld, Off-Line Transmittance Monitor with power supply (North America only), case, cleaning swab x 1
UVT0001 Carrying Case for UVT-LED-H (included with UVT-LED-H-WD and UVT-LED-H-NA kits)
UVT0002 Power/Communication Cable for UVT-LED-PW, 10m (33 ft)- included with UVT-LED-PW
UVT0003 Power/Communication Cable for UVT-LED-PW, 20m (66 ft)
UVT0004 Power/Communication Cable for UVT-LED-PW, 30m (99 ft)
UVT-SW-001 Detachable Power/Communication Cable for UVT-LED-SW, 10m (33 ft)- included with UVT-LED-SW
UVT-SW-002 Detachable Power/Communication Cable for UVT-LED-SW, 20m (66 ft)
UVT-SW-003 Detachable Power/Communication Cable for UVT-LED-SW, 30m (99 ft)
UVT0011 Cleaning Swabs (pack of 50)
UVT0008 UVT-LED-PW Installation Fitting, 2" NPT 316SS
UVT0009 UVT-LED-PW Installation Fitting, Stainless Steel Pipe (requires welding)
UVT0021 UVT-LED-PW Installation Fitting for PVC Pipe (2" NPT)
UVT0015 UVT-LED-PW Installation Kit, Stainless Steel Sanitary Flow Cell (3”)
UVT0023 UVT-LED-PW Installation Kit, PVC Flow Cell (2") with connections for barbed fitting with quick-disconnect
UVT0024 UVT-LED-PW Installation Kit, Stainless Steel Flow cell (2") with 1/4" barbed fittings
UVT-SW-004 UVT-LED-SW Installation Kit, retrofit to other supplier installation kits that accept 1.25" diameter pipe.
UVT-SW-005 UVT-LED-SW Installation Kit, Complete
Parts covered by this product instruction sheet include:
UVT-LED-PW, UVT-LED-H, UVT-LED-SW, and all accesso-
ries and mounting hardware
Document Number 480437
Page 29 of 30
PRODUCT INSTRUCTION SHEET
This UVT-LED product, as supplied and by Sensorex, or an authorized Sensorex distributor, and delivered new, in
the original carton is warranted by Sensorex against manufacturing defects in materials and workmanship for a
limited warranty period of:
Two (2) years on all components
The limited warranty commences on the date of shipment. To make a warranty claim, the purchaser must con-
tact Sensorex or distributor for problem determination and receipt of an RMA number. The serial number must
be presented for warranty processing to begin.
Sensorex will repair, or replace, any part found to be defective, in our opinion and at no charge as stipulated
herein, with new or reconditioned parts during the limited warranty period specied above. All replaced parts
and products become the property of Sensorex and must be returned to Sensorex. Replacement parts and prod-
ucts assume the remaining original warranty, or ninety (90) days, whichever is longer.
This limited warranty covers manufacturing defects in materials and workmanship encountered in normal use
of this product, and shall not apply to the following, including but not limited to: wear and tear to quartz win-
dow wiper blades, damage which occurs in shipment; delivery and installation; applications and uses for which
this product was not intended; altered product or serial numbers; cosmetic damage or exterior nish; accidents,
abuse, neglect, re, water, lightning or other acts of nature; use in applications with water temperature and
ambient air temperature over 100 degrees F, with water pressure greater than 150 psi (PW only); use of products,
equipment, systems, utilities, services, parts, supplies, accessories, applications, installations, repairs, external
wiring not supplied or authorized by Sensorex, or which damage this product or result in service problems;
incorrect supply voltage, uctuations and surges in electrical supply; customer adjustments and failure to follow
operating instructions, cleaning and maintenance instructions that are covered and prescribed in the Operations
and Maintenance manual.
There are no express warranties other than those listed and described above, and no warranties whether ex-
pressed or implied, including, but not limited to, any implied warranties of merchantability or tness for a
particular purpose, shall apply after the express warranty periods stated above, and no other express warranty
or guaranty given by any person, rm or corporation with respect to this product shall be binding on Sensorex.
Sensorex shall not be liable for loss of revenue or prots, failure to realize savings or other benets, or any other
special, incidental or consequential damages caused by the use, misuse or inability to use this product, regard-
less of the legal theory on which the claim is based, and even if Sensorex has been advised of the possibility of
such damages. Nor shall recovery of any kind against Sensorex be greater in amount than the purchase price
of the product sold by Sensorex and causing the alleged damage. Without limiting the foregoing, purchaser
assumes all risk and liability for loss, damage or injury to purchaser and purchaser’s property and to others and
their property arising out of the use, misuse or inability to use this product sold by Sensorex not caused directly
by the negligence of Sensorex. This limited warranty shall not extend to anyone other than the original purchas-
er of this product either from Sensorex directly or through an authorized Sensorex distributor, it is non-transfer-
able and states the exclusive remedy.
Product Warranty
FORM: InstrUVT-LED Instruction Manual-09 [Rev: 2016-10-19]
©2016 Sensorex Corporation
11751 Markon Drive Ph +1(714) 895-4344 sales@sensorex.com
Garden Grove, CA. 92841 USA Fax +1(714) 894-4839 www.sensorex.com
Parts covered by this product instruction sheet include:
UVT-LED-PW, UVT-LED-H, UVT-LED-SW, and all accesso-
ries and mounting hardware
Document Number 480437
Page 30 of 30
