Ludlum Measurements 4525 GENERATION IV Series User manual

LUDLUM MODEL 4525 GENERATION IV SERIES
RADIATION PORTAL MONITOR
MODELS
4525-5000
4525-7500
4525-10000
4525-12500
4525-15000
INSTALLATION MANUAL
December 2020
Serial Number GM5179 and Succeeding
Serial Numbers

LUDLUM MODEL 4525 GENERATION IV SERIES
RADIATION PORTAL MONITOR
MODELS
4525-5000
4525-7500
4525-10000
4525-12500
4525-15000
INSTALLATION MANUAL
December 2020
Serial Number GM5179 and Succeeding
Serial Numbers

STATEMENT OF WARRANTY
Ludlum Measurements, Inc. warrants the portal monitor covered in this manual to be free of
defects due to workmanship, material, and design for a period of 24 months from the date of delivery.
The calibration of a product is warranted to be within its specified accuracy limits at the time of
shipment. Accessories such as computers, Universal Power Supplies (UPSs), cameras, network
equipment, etc., are warranted by the individual manufacturer, and are not covered by Ludlum
Measurements.
This warranty excludes the replacement of instruments, detectors, or parts that are broken due to
excessive physical abuse, acts of nature such as lightening, or used for purposes other than intended.
There are no warranties, express or implied, including without limitation any warranty of
merchantability or fitness, which extend beyond the description of the face thereof. If the product does
not perform as warranted herein, the purchaser’s sole remedy shall be repair, recalibration, or
replacement, at the discretion of Ludlum Measurements. In no event will Ludlum Measurements be liable
for damages, lost revenue, lost wages, or any other incidental or consequential damages, arising from the
purchase, use, or inability to use product.
RETURN OF GOODS TO MANUFACTURER
If equipment needs to be returned to Ludlum Measurements, Inc. for repair or calibration, please
send to the address below. All shipments should include documentation containing return shipping
address, customer name, telephone number, description of service requested, and all other necessary
information. Your cooperation will expedite the return of your equipment.
LUDLUM MEASUREMENTS, INC.
ATTN: REPAIR DEPARTMENT
501 OAK STREET
SWEETWATER, TX 79556
866-420-9732 325-235-9732
FAX [phone]
PORTAL MONITOR TECH SUPPORT 800-717-9506 (24 hours) or 325-235-9732

LMI/RSD Form Rev 1.1 jmg 6 Aug 2019
DESIGNER AND
MANUFACTURER
OF
Scientific and Industrial
Instruments
LUDLUM MEASUREMENTS, INC.
501 Oak Street
P.O. Box 810
Sweetwater, Texas 79556
Website: www.ludlums.com
[phone] / [phone]
Ludlum Model 4525 Site Preparaon Checklist
This check list and the described photos must be submied to [e-mail] prior to scheduling the Commissioning and Start-
up of your system. If no email is available these may be Faxed to [phone].
Please be aware there will be addional charges in the case of delays incurred if site is not prepared by arrival.
Yes/No/NA Pre-Commissioning & Start-up Site Preparation
Foundations placed where detectors have a 10 foot (3 M) “buffer zone” in all directions (Installation Manual
Drawings 4511-375).
Install detectors in approved stands, anchored in concrete and placed in an approved configuration.
Stands must be diagonally square with one another within 0.5 inch (13 mm) .
Assure the 4525-7000 Series Control Box is to be mounted on the back of the master detector (#1)
stand leaving adequate space for technicians to perform work safely.
AC power must be in an Isolated conduit with a dedicated, visibly identifiable, breaker capable of
“lock out tag out” locks.
Install Detector cable(s) (Belden 8774, 9 pair 100-foot (30 M) provided) in conduit(s) between each
detector and the control box, with 24 inches (61 cm) over pull on each end. (Systems with more
than 2 detectors, run cable and conduit between the primary and secondary detectors.)
Mount Infrareds as shown in site layout drawings provided, in the installation manual, and in loca-
tions specified on each IR assembly, determined by system purchased.
Install Cat 5e Ethernet cable, 250 foot (72 M) provided, in conduit and pulled from control system to
computer location in office area with 24 inches (61 cm) over pull on each end.
Computer and printer must be in an easily accessible location, (wall-mount system purchased from
Ludlum’s is to be mounted on a wall) with proper power and UPS.
Auxiliary remote, mounted with conduit installed and cable pulled (Belden 9946, 10 conductors 100-
foot [30 m] provided)
Any additional accessories Camera(s), strobe/horn, traffic lights, P2P wireless, etc., with cable(s),
installed, according to recommended specifications.
Customer is responsible to provide a man lift and an OSHA certified lift operator for all overhead
detectors. If not provided the technician will arrange for each at customer’s expense.
Customer will provide a safe, stable and clean OSHA certified stepladder for technician’s use.
Photos provided as described in the Photo Requirement List (Next Page)
Comments:
Company: ______________________________________________________
Location: ______________________________________________________
Signature/Date: __________________________________________________

LMI/RSD Form Rev 1.1 jmg 6 Aug 2019
DESIGNER AND
MANUFACTURER
OF
Scientific and Industrial
Instruments
LUDLUM MEASUREMENTS, INC.
501 Oak Street
P.O. Box 810
Sweetwater, Texas 79556
Website: www.ludlums.com
[phone] / [phone]
Ludlum Model 4525 Site Photo Requirements
This list of Photos and the Check List must be submied to [e-mail] prior to scheduling the Commissioning and Start-up
of your system. If no email is available these may be Faxed to [phone].
Please be aware there will be addional charges in the case of delays incurred if site is not prepared by arrival.
Yes/No/NA Pre-Commissioning & Start-up Site
3 different angles minimum—Photo(s) showing both detectors in relation to the scale and to ensure the 10
Foot (3M) buffer zone is adequate. (REF: Installation Manual 4511-375) .
1 each—showing the Control Box mounted on the back side of detector #1 stand and height from ground for
easy accessibility, as specified in Installation Manual.
2 each—Face of each detector, with doors closed, showing the placement of all infrared sensors.
2 each—Face of each detector, with doors Opened, showing cables pulled through conduits and 24 inches
(61cm) over pull.
2 each—interior of the control box showing the A/C power lines, both detector cables, auxiliary remote cable,
sensor wiring and the Cat-5e network cable with 24 inches (61cm) over pull.
1 each—(If applicable) Photos of the horn/strobe unit and/or camera and/or traffic light, and/or Wireless P2P
system (both antenna mounted with unobstructed signal path and connecting cables on each end), mounted
with conduit(s) and entering the control box.
2-4 each—Photo(s) showing the mounted computer, printer and network equipment and cables with Cat5e
cable connecting exterior detector, if using purchased system from Ludlum. Photo(s) should reflect the
placement of the computer, monitor and printer after installation whether customer supplied or purchased
with the system(s). The system will be easily accessible and the monitor should be at eye level seated or
standing.
1 each—Photo of the interior auxiliary remote mounted in its location (if purchased). The photo should also
include the cable from the external detector in proximity to the remote.
1 each—Photos of any additional equipment and its location with respect to its function; such as wireless
access points and antennas. These photos should clearly depict the wiring has been installed to control
these devices.
Addional photos— any obstacles, barriers, or other anomalies that could possibly impact the installaon and opera-
on of the system as designed should be documented and presented photographically with the required photos and
noted below in the comments eld.
Comments:
Company: ______________________________________________________
Location: ______________________________________________________
Signature/Date: __________________________________________________

Ludlum Measurements, Inc. December 2020
Table of Contents
Overview 1
Detector Stand Installation 2
Shipping Crates 2-1
Stand Location –Buffer Zone 2-7
Lightning Protection 2-7
Stand Orientation 2-8
Typical Stand Setup 2-10
Setting Up The Stands 2-10
Conduit Requirements 2-15
Cable Requirements 2-15
Wiring 2-16
Detector Wiring 2-17
Remote Display 2-18
Cat-5E LAN Cabling 2-18
Supervisor Computer 2-19
Miscellaneous Requirements 2-19
Software and Network Installation 3
Software Installation 3-1
Network Installation 3-2
Software License Agreement 3-8
Drawings and Diagrams 4

Model4525GenerationIVSeries InstallationManual Section1
Ludlum Measurements, Inc. Page 1-1 December 2020
Overview
The Ludlum Model 4525 Radiation Portal Monitor or “gate monitor” is designed
to detect very low levels of radiation, typically in vehicle loads as they are driven
between the detectors. Usually the radiation detectors are placed right before a
weigh scale. This manual is intended to assist you in the installation of the system.
Several different models and options are available of the Model 4525. The
Generation IV Series can be optimally arranged to monitor moving vehicles
entering into the system. Each detector system can be configured with two to six
large detectors.
In general, the full model number tells the number of detectors –the Model 4525-
5000 is a two-detector system, the Model 4525-7500 is a three-detector system, the
4525-10000 system has four detectors, the Model 4525-12500 has five detectors,
and the Model 4525-15000 has six detectors. The model number suffix reflects the
total cubic inches of scintillation material used by the combined system. Generation
IV systems are upgradeable to more complex configurations.
The detectors are normally mounted to the side of the vehicle, and also sometimes
above the vehicle. The detectors are centered around the typical load; your situation
or location might require the detectors to be higher or lower than the dimensions
shown in the back of this manual.
Each system comes with a wall-mount computer display, printer, and universal
power supply (UPS). This computer logs data and displays the current status of the
system. It is typically placed inside the scale house, or in close proximity to the scale
operator. A remote display, with status lights and a reset button, is also provided.
The remote can show the status and allow someone to reset alarms whenever the
main computer is inaccessible. It is typically placed in the scale house, or sometimes
under a weather-protected porch.
Each system uses infrared sensors to detect the vehicle’s presence, and thus switch
from measuring the background radiation to checking for an alarm. Multiple sets of
sensors are used to measure the speed of the vehicle and to ensure that the vehicle
presence is sensed throughout the passage of the vehicle. The range of vehicle sizes,
from flatbed trailers to tall drop-off boxes, necessitates some care in positioning the
sensors. The drawings in the back of the manual suggest some mounting heights
that have worked at many locations.
Section
1

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Ludlum Measurements, Inc. Page 2-1 December 2020
Detector Stand Installation
This procedure is intended to outline the stand installation of the Ludlum Model
4525-5000, 4525-7500, Model 4525-10000, Model 4525 12500, and Model 4525-
15000 Radiation Detection Systems. It does not cover actual termination of cables,
which is normally performed by Ludlum Measurements, Inc. (LMI) technicians.
The stand installation covers the following items:
1) Shipping Crates
2) Stand Location –Buffer Zone
3) Stand Orientation
4) Typical Stand Setup
5) Setting Up The Stands
6) Conduit Requirements
7) Cable Requirements
8) Remote Display
9) CAT-5E LAN Cabling
10) Supervisor Computer (optional)
11) Monitor Computer (optional)
12) Miscellaneous Requirements
Note:
Drawings of the model numbers listed above are located in the back of
this manual. Before building and installing the stands, please review the
drawings of the Model 4525 that you have ordered to assist in the
installation process.
Shipping Crates
Each system may be purchased with or without the steel stands that provide
protection to the radiation detectors. Purchase of the steel stands from Ludlum
Measurements, Inc. facilitates the installation process. The following lists the
contents of the shipping crates.
Section
2

Model4525GenerationIVSeries InstallationManual Section2
Ludlum Measurements, Inc. Page 2-2 December 2020
CRATE CONTENTS OF THE MODEL 4525-5000 WITHOUT STANDS
The system is shipped in one crate containing:
Two large (approximately 116.8 x 116.8 x 22.9 cm {46 in x 46 in x 9 in.}) white
detector boxes labeled Detector 1 and Detector 2
One 30.5 m (100 ft) roll of cable for the detectors (Belden 8774 or equivalent)
One 76.2 m (250 ft) roll of CAT-5E cable for Ethernet connection (Belden 1501A
or equivalent)
One remote display with 30.5 m (100 ft) cable (Belden 9946 or equivalent)
One hardware mounting kit containing the following:
8 qty. ½-inch x 2 ¼-inch long hex bolts
8 qty. ½-inch hex nuts
8 qty. ½-inch lock washers
16 qty. ½-inch flat washers
If a computer is purchased with the system, it will be inside the crate.
Any other optional items will be packed in the crate with the detectors.
The total shipping weight of the crate is approximately 681 kg (1500 lb).
CRATE CONTENTS OF THE MODEL 4525-7500 WITHOUT STANDS
The system is shipped in two crates. The first crate contains: Detector 1 and Detector 2.
Two large (approximately 116.8 x 116.8 x 22.9 cm {46 in x 46 in x 9 in.}) white
detector boxes labeled Detector 1 and Detector 2.
The second crate contains: Detector 3 and peripherals.
One large (approximately 116.8 x 116.8 x 22.9 cm {46 in x 46 in x 9 in.}) white
detector boxes labeled Detector 3.
One 30.5 m (100 ft) roll of cable for the detectors (Belden 8774 or equivalent)
One 76.2 m (250 ft) roll of CAT-5E cable for Ethernet connection (Belden 1501A
or equivalent)
One remote display with 30.5 m (100 ft) cable (Belden 9946 or equivalent)
One hardware mounting kit containing the following:
12 qty. ½-inch x 2 ¼-inch long hex bolts
12 qty. ½-inch hex nuts
12 qty. ½-inch lock washers
24 qty. ½-inch flat washers

Model4525GenerationIVSeries InstallationManual Section2
Ludlum Measurements, Inc. Page 2-3 December 2020
If a computer is purchased with the system, it will be inside the crate.
Any other optional items will be packed in the crate with the detectors.
One crate is approximately 681 kg (1500 lb), and the other is approximately 454 kg
(1000 lb).
CRATE CONTENTS OF THE MODEL 4525-10000 WITHOUT STANDS
The system is shipped in two crates.
The first crate contains: Detector 1 and Detector 2 and peripherals.
Two large (approximately 116.8 x 116.8 x 22.9 cm {46 in x 46 in x 9 in.}) white
detector boxes labeled Detector 1 and Detector 2
One 30.5 m (100 ft) roll of cable for the detectors (Belden 8774 or equivalent)
One 76.2 m (250 ft) roll of CAT-5E cable for Ethernet connection (Belden 1501A
or equivalent)
One remote display with 30.5 m (100 ft) cable (Belden 9946 or equivalent)
Four infrared sensor components with conduit
One hardware mounting kit containing the following:
16 qty. ½-inch x 2 ¼-inch long hex bolts
16 qty. ½-inch hex nuts
16 qty. ½-inch lock washers
32 qty. ½-inch flat washers
If a computer is purchased with the system, it will be inside the crate.
Any other optional items will be packed in the crate with the detectors.
One crate is approximately 681 kg (1500 lb), and the other is approximately 454 kg
(1000 lb).
The second crate contains: Detector 3 and Detector 4.
Two large (approximately (meters)m {46 in x 46 in x 9 in.}) white detector boxes
labeled Detector 3 and 4.

Model4525GenerationIVSeries InstallationManual Section2
Ludlum Measurements, Inc. Page 2-4 December 2020
CRATE CONTENTS OF THE MODEL 4525-12500 WITHOUT STANDS
The system is shipped in two crates.
The first crate contains: Detector 1 and Detector 2 and peripherals.
Two large (approximately 116.8 x 116.8 x 22.9 cm {46 in x 46 in x 9 in.}) white
detector boxes labeled Detector 1 and Detector 2
One 30.5 m (100 ft) roll of cable for the detectors (Belden 8774 or equivalent)
One 76.2 m (250 ft) roll of CAT-5E cable for Ethernet connection (Belden 1501A
or equivalent)
One remote display with 30.5 m (100 ft) cable (Belden 9946 or equivalent)
Four infrared sensor components with conduit
One hardware mounting kit containing the following:
20 qty. ½-inch x 2 ¼-inch long hex bolts
20 qty. ½-inch hex nuts
20 qty. ½-inch lock washers
40 qty. ½-inch flat washers
If a computer is purchased with the system, it will be inside the crate.
Any other optional items will be packed in the crate with the detectors.
One crate is approximately 681 kg (1500 lb), and the other is approximately 908 kg
(2000 lb).
The second crate contains: Detector 3 and Detector 4 and Detector 5.
Three large (approximately 116.8 x 116.8 x 22.9 cm {46 in x 46 in x 9 in.}) white
detector boxes labeled Detector 3, 4 and 5.

Model4525GenerationIVSeries InstallationManual Section2
Ludlum Measurements, Inc. Page 2-5 December 2020
CRATE CONTENTS OF THE MODEL 4525-15000 WITHOUT STANDS
The system is shipped in two crates.
The first crate contains: Detector 1 and Detector 2 and peripherals.
Two large (approximately 116.8 x 116.8 x 22.9 cm {46 in x 46 in x 9 in.}) white
detector boxes labeled Detector 1 and Detector 2
One 30.5 m (100 ft) roll of cable for the detectors (Belden 8774 or equivalent)
One 76.2 m (250 ft) roll of CAT-5E cable for Ethernet connection (Belden 1501A
or equivalent)
One remote display with 30.5 m (100 ft) cable (Belden 9946 or equivalent)
Four infrared sensor components with conduit
One hardware mounting kit containing the following:
24 qty. ½-inch x 2 ¼-inch long hex bolts
24 qty. ½-inch hex nuts
24 qty. ½-inch lock washers
48 qty. ½-inch flat washers
If a computer is purchased with the system, it will be inside the crate.
Any other optional items will be packed in the crate with the detectors.
One crate is approximately 681 kg (1500 lb), and the other is approximately 908 kg
(2000 lb).
The second crate contains: Detector 3 and Detector 4 and Detector 5 and Detector 6.
Four large (approximately 116.8 x 116.8 x 22.9 cm {46 in x 46 in x 9 in.}) white
detector boxes labeled Detector 3, 4, 5, and 6.

Model4525GenerationIVSeries InstallationManual Section2
Ludlum Measurements, Inc. Page 2-6 December 2020
Pallet Contents of the Model 4525-5000 and 10000 with stands
It is shipped on one pallet that contains two large yellow I-beam frame assemblies with white
detectors attached. For a M 4525-5000, the pallet holds one detector per frame assembly. For the
M 4525-10000, the pallet holds 2 detectors per frame assembly. The following items are strapped
onto the pallet.
One 30.5 m (100 ft) roll of cable for the detectors (Belden 8774 or equivalent)
One 76.2 m (250 ft) roll of CAT-5E cable for Ethernet connection (Belden 1501A
or equivalent)
One remote display with 100 foot cable (Belden 9946 or equivalent)
The Model 4525-12500 and 4525-15000 will have four infrared components with
conduit
If a computer is purchased with the system, it will be shipped in a smaller box
strapped to the pallet.
Any other optional items.
The total shipping weight of the pallet with the Model 4525-5000 is approximately
1362 kg (3000 lb), Model 4525-10000 is 2270 kg (5000 lb).
PALLET CONTENTS OF THE MODEL 4525-7500, 12500, AND 15000 WITH STAND
The system comes on two pallets. The smaller pallet contains two large yellow I-beam frame
assemblies with white detectors attached. For a Model 4525-7500, the pallet holds one
detector per frame assembly. For the Model 4525-12500 and 15000, the pallet holds 2
detectors per frame assembly. On a Model 4525-7500, the pallet contains Detector 1 and 2.
For the Model 4525-12500 and 15000, the pallet contains Detectors 1, 2, 3, and 4.
The large pallet contains a large yellow I-beam frame assembly with multiple white detectors
attached Also strapped to the large pallet are four leg extensions to suspend the overhead frame
over the scale or lane. On a Model 4525-7500 the pallet contains Detector 3. For the Model
4525-12500, the pallet contains detector 5. For the Model 4525-15000, the pallet contains
Detectors 5 and 6.
The following items are strapped onto the smaller pallet.
One 30.5 m (100 ft) roll of cable for the detectors (Belden 8774 or equivalent)
One 76.2 m (250 ft) roll of CAT-5E cable for Ethernet connection (Belden 1501A
or equivalent)
One remote display with 100 foot cable (Belden 9946 or equivalent)
The Model 12500 and 15000 will have four infrared components with conduit.
If a computer is purchased with a system, the computer and white control box
enclosure will be shipped in smaller crates strapped to the pallet.

Model4525GenerationIVSeries InstallationManual Section2
Ludlum Measurements, Inc. Page 2-7 December 2020
Any other optional items.
The total shipping weight of both pallets for the Model 4525-7500 is approximately
2043 kg (4500 lb), Model 4525-12500 is 3405 kg (7500 lb), Model 4525-15000 is 4086
kg (9000 lb).
UNPACKING
1) Remove the cardboard and shrink wrap from the stand.
2) Remove the peripherals from the crate. Store the peripherals in a safe
location.
3) On Models 4525-7500, 4525-12500, and 4525-15000, remove the I-
beam extensions and keep them accessible for preassembly.
Stand Location –Buffer Zone
For best operation, locate the stands in an area where a 3 m (10 ft) buffer zone can
be maintained around the detectors. Typically the stands are mounted about 3 m
(10 ft) before the weigh scale. It is important that vehicles stay out of this buffer
zone except when they are moving slowly between the detectors. Placing a stop
sign at the entrance to this buffer zone is recommended, as well as painting a line
on the pavement. See Drawing 511 x 928P. Failure to correctly locate the system
or failure to enforce the buffer zone will result in more frequent false alarms.
These false alarms are caused by the system having an incorrect measurement of
the true background radiation level.
Lightning Protection
Ludlum Measurements offers an optional lightning protection setup to reduce
damage from a lightning strike. See drawing 511 x 1067 in the back of the manual
for an example. Contact an LMI representative for more information.

Model4525GenerationIVSeries InstallationManual Section2
Ludlum Measurements, Inc. Page 2-8 December 2020
Stand Orientation
Detector 1 is connected to the office supervisor computer and mains power.
Detector 1 should go on the side with the four conduits coming out of the pad.
The other detectors are only connected to Detector 1. See figures below for
layout.
MODEL 4525-5000
MODEL 4525-7500

Model4525GenerationIVSeries InstallationManual Section2
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MODEL 4525-10000
MODEL 4525-12500
MODEL 4525-15000

Model4525GenerationIVSeries InstallationManual Section2
Ludlum Measurements, Inc. Page 2-10 December 2020
Typical Stand Setup
To see a typical installation of the gate monitors, see the following drawings:
Model 4525-5000: Drawings 511 x 928 and 511 x 928A
Model 4525-7500: Drawings 511 x 928C and 511 x 928D
Model 4525-10000: Drawings 511 x 928F and 511 x 928G
Model 4525-12500: Drawings 511 x 928I and 511 x 928J
Model 4525-15000: Drawings 511 x 928L and 511 928M
Notice:
In high background areas, it may be necessary to install additional steel or
lead behind the detector enclosure to reduce background.
Setting up the Stands
ANCHOR BOLT PATTERN
Due to the close tolerances of the anchor bolt holes, the anchor bolts must be
placed according to the dimensions specified on the Anchor Bolt Template
drawing: 511 x 997.
LIFTING
There are 1 x 4 inch rectangular cutouts in the frame pieces that can be used for
lifting. Insert a properly rated nylon lifting strap through the cutout. These can be
used instead of lifting eyes or clevises.
The weight of the frame pieces vary depending on number and configuration of
detectors. See pages 2-2 through 2-7 for approximate weights of your specific
system.

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Note:
LMI recommends the use of a template to be sure the anchor bolt
holes are placed in the correct locations. These can be supplied by
LMI. The part numbers are:
Models 4525-5000 template part number 7511-997 (2 each needed)
The notch on the templates should be placed toward the center of the lane. The
anchor bolt holes are a tight tolerance fit for the ¾-inch anchor bolt; therefore,
care must be taken when the anchor bolts are placed in the concrete. Double-nut
the anchor bolt to the template before the concrete cures to ensure proper anchor-
bolt alignment.
LEVELING
1) Once the concrete is dry and all the bolts are straight, the mounting points
will need to be leveled. Shims may be used, but the following instructions assume
the use of leveling nuts.
2) Run a set of leveling nuts on the bolts as low as allowable (one nut per
bolt).
3) Place the flat template for the concrete holes on the leveling nuts.
4) Start leveling from the highest nut, using a 0.61 m (2 ft) (or larger) level in
the pattern described below. The stands should be level and plumb within 0.17 cm
(1/16 of an inch) over a 0.61 m (2 ft) distance.
Model 4525 Generation IV Series Individual Stand Leveling

Model4525GenerationIVSeries InstallationManual Section2
Ludlum Measurements, Inc. Page 2-12 December 2020
LIFTING
Systems purchased without stands:
Each detector weighs approximately 340 kg (750 lb).
For side detectors, position lifting straps around and under the
detector and carefully raise them into position. Use straps that are
capable of holding the weight and that will not scratch or
otherwise damage the detectors when being lifted into position.
As an alternate method, the detector can be mounted to the back
plate, and then the detector and back plate can be lifted together
and set into place with a crane or other suitable device, using
straps that are properly rated. The weight of one detector and
back plate is approximately 680 kg (1500 lb).
For overhead detectors, the detector can be carefully positioned
on its door, and then carefully lifted into place with a forklift or
other lifting device. As an alternate method, the detector can be
mounted to the back plate, and then the detector and back plate
can be lifted together and set into place with a crane or other
suitable device, using straps that are properly rated. The weight of
one detector and back plate is approximately 680 kg (1500 lb).
Systems purchased with stands:
Model 4525-5000 and 4525-7500 side stands
The weight of one side of the stand assembly with one detector
and one back plate attached is approximately 907 kg (2000 lb).
Attach properly rated lifting lugs to the top of the stand I-beam
legs and carefully lift each side into position. Ensure that each leg
is level and plumb and square with the other side before securing
it to the concrete pad.
Model 4525-10000, 12500, and 15000 side stands
The weight of one side of the stand assembly with two
detectors and two back plates attached is approximately 1588
kg (3500 lb). Attach properly rated lifting lugs to the top of the
stand I-beam legs and carefully lift each side into position.
Ensure that each leg is level and plumb and square with the
other side before securing it to the concrete pad.