Will Burt D-Tect 5354901 User manual

OPERATOR’S MANUAL
Sensor (P/N: 5354901) Shown
Rack Mount Display (P/N: 5354801) Shown
Wall Mount Display (P/N: 5354701) Shown
The Will-Burt Company
169 S. Main Street
Orrville, OH 44667
www.willburt.com
TP-5522901-00, July 2018
© 2018 The Will-Burt Company
Original Instructions

D-TEC OPERATOR’S MANUAL
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Warranty
Will-Burt warrants its D-TEC®to be free from defects in material and workmanship
for a period of two (2) years, with such time period running from the date of
shipment by Will-Burt. Will-Burt shall not be responsible for any damage resulting
to or caused by its products by reason of failure to properly install, maintainor store
the product; use of the product in a manner inconsistent with its design;
unauthorized service, alteration of products, neglect, abuse, accident, or acts of
God. This warranty does not extend to any component parts not manufactured by
Will-Burt; provided, however, Will-Burt’s warranty herein shall not limit any
warranties by manufacturers of component parts which extend to the buyer.
THE FOREGOING WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES, AND
NO REPRESENTATIONS, GUARANTEES OR WARRANTIES, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO, A WARRANTY OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-
INFRINGEMENT ARE MADE BY WILL-BURT IN CONNECTION WITH THE
MANUFACTURE OR SALE OF ITS PRODUCTS. NO EMPLOYEE,
DISTRIBUTOR, OR REPRESENTATIVE IS AUTHORIZED TO CHANGE THIS
WARRANTY IN ANY WAY OR GRANT ANY OTHER WARRANTY ON BEHALF
OF WILL-BURT.
Claims for defects in material and workmanship shall be made in writing to Will-
Burt within thirty (30) days of the discovery of defect. Failure to provide notice as
required hereby shall be conclusive evidence that the product was in conformity
with the warranty, and Will-Burt shall be released from any and all liability relating
to the product. Will-Burt may either send a service representative or have the
product returned to its factory at Buyer's expense for inspection. If judged by Will-
Burt to be defective in material or workmanship, the product will be replaced or
repaired at the option of Will-Burt, free from all charges except authorized
transportation.
THE REMEDIES OF BUYER SET FORTH HEREIN ARE EXCLUSIVE AND ARE
IN LIEU OF ALL OTHER REMEDIES. THE LIABILITY OF WILL-BURTWHETHER
IN CONTRACT, TORT, UNDER ANY WARRANTY, OR OTHERWISE, SHALL
NOT EXTEND BEYOND ITS OBLIGATION TO REPAIR OR REPLACE, AT ITS
OPTION, ANY PRODUCT OR PART FOUND BY WILL-BURTTO BE DEFECTIVE
IN MATERIAL OR WORKMANSHIP. WILL-BURT SHALL NOT BE LIABLE FOR
COST OF INSTALLATION AND/OR REMOVAL, OR BE RESPONSIBLE FOR
DIRECT, INDIRECT, SPECIAL OR CONSEQUENTIAL DAMAGES OF ANY
NATURE.

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Document History
Document Numbers
Dates
Remarks
TP-5522901-00
July 24, 2018
Initial Release

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Table of Contents
Safety Summary.......................................................................................................................vi
Signal Word Definitions............................................................................................................................ vi
General Safety Instructions...................................................................................................................... vi
Symbols...................................................................................................................................................viii
Section 1 Introduction.......................................................................................................... 1-1
1.1 Safety Precaution Notification..........................................................................................................1-1
1.2 Manual Organization........................................................................................................................1-2
1.3 Definitions of Terms .........................................................................................................................1-2
1.4 Specifications...................................................................................................................................1-3
1.5 Major Components...........................................................................................................................1-4
1.5.1 Sensor (P/N: 5354901) .............................................................................................................1-4
1.5.2 Rack Mount Display (P/N: 5354801) (Rack Mount Kits only)...................................................1-5
1.5.3 Wall Mount Display (P/N: 5354701) (Wall Mount Kits only) .....................................................1-6
1.5.4 Installation Kit (P/N: 5523901) ..................................................................................................1-7
1.5.5 Installation Bracket....................................................................................................................1-8
1.5.6 Air Control Valve Kit (For Pneumatic Masts Only)....................................................................1-9
Section 2 Installation............................................................................................................ 2-1
2.1 Pre-Installation Check......................................................................................................................2-1
2.2 Installation Equipment......................................................................................................................2-2
2.3 Installation Hardware .......................................................................................................................2-3
2.4 Installation Dimensions ....................................................................................................................2-4
2.4.1 Sensor (P/N: 5354901) Dimensions .........................................................................................2-5
2.4.2 Rack Mount Display (P/N: 5354801) Dimensions.....................................................................2-6
2.4.3 Wall Mount Display (P/N: 5354701) Dimensions......................................................................2-7
2.4.4 Installation Bracket (P/N: 5524101) Dimensions......................................................................2-8
2.5 Physical Installation..........................................................................................................................2-9
2.5.1 Physical Installation Quick Summary........................................................................................2-9
2.5.2 Physical Installation Detailed Instructions.................................................................................2-9
2.5.2.1 Select Suitable Mounting Locations.................................................................................2-10
2.5.2.2 Unpack the D-TEC...........................................................................................................2-12
2.5.2.3 Install the Sensor .............................................................................................................2-12
2.5.2.4 Install the Display.............................................................................................................2-13
2.6 Electrical Installation ......................................................................................................................2-15
2.6.1 Electrical Installation Quick Summary ....................................................................................2-15
2.6.2 Electrical Installation Detailed Instructions .............................................................................2-15
2.6.2.1 Install DB25......................................................................................................................2-17
2.6.2.2 Install Up/Down Switch ....................................................................................................2-18
2.6.2.3 Install Override/Clear Switch............................................................................................2-19
2.6.2.4 Install Keylock Switch.......................................................................................................2-20
2.6.2.5 Install Speaker .................................................................................................................2-21
2.6.2.6 Install DB9........................................................................................................................2-22
2.6.2.7 Electrically Connect the Sensor.......................................................................................2-23
2.6.2.8 Install the Air Control Valve (Pneumatic Masts Only)......................................................2-24

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2.6.2.9 Install the Stiletto Control (Stiletto Family Masts Only)....................................................2-26
2.6.2.10 Install Remote Annunciators (Optional).........................................................................2-27
2.6.2.11 Install Remote Computer (Not Supplied).......................................................................2-27
2.6.2.12 Install System Power......................................................................................................2-28
2.6.2.13 Finalize Installation.........................................................................................................2-29
2.7 Test the Installation........................................................................................................................2-29
Section 3 Operation.............................................................................................................. 3-1
3.1 Pre-Operation Check .......................................................................................................................3-1
3.2 Operation Equipment .......................................................................................................................3-2
3.3 D-TEC Operation .............................................................................................................................3-3
3.3.1 Power Up Sequence.................................................................................................................3-3
3.3.2 Operating the Mast ...................................................................................................................3-4
3.3.3 Clearing an Alarm .....................................................................................................................3-4
3.3.4 Overriding an Alarm..................................................................................................................3-5
Section 4 Maintenance ......................................................................................................... 4-1
4.1 Pre-Maintenance Check...................................................................................................................4-1
4.2 Maintenance Equipment ..................................................................................................................4-1
4.3 Spare Parts ......................................................................................................................................4-2
4.4 Scheduled Maintenance...................................................................................................................4-2
Section 5 Troubleshooting................................................................................................... 5-1
5.1 Debug Menu.....................................................................................................................................5-1
5.2 No Audible Messages ......................................................................................................................5-5
5.3 Unable to Override D-TEC...............................................................................................................5-5
Section 6 Reference.............................................................................................................. 6-1
6.1 D-TEC Function................................................................................................................................6-1
6.1.1 Electric Field Patterns...............................................................................................................6-2
6.1.2 Electric Fields............................................................................................................................6-2
6.1.3 Magnetic Fields.........................................................................................................................6-3
6.2 Extended Glossary of Terms............................................................................................................6-4
Table of Figures
Figure 1-1 Sensor .....................................................................................................................................1-4
Figure 1-2 Rack Mount Display.................................................................................................................1-5
Figure 1-3 Wall Mount Display..................................................................................................................1-6
Figure 1-4 Installation Bracket ..................................................................................................................1-8
Figure 1-5 Air Control Valve......................................................................................................................1-9
Figure 2-1 Sensor Dimensions..................................................................................................................2-5
Figure 2-2 Rack Mount Display Dimensions.............................................................................................2-6
Figure 2-3 Wall Mount Display Dimensions..............................................................................................2-7
Figure 2-4 Installation Bracket Dimensions ..............................................................................................2-8
Figure 2-5 Vent Location as Related to Dish ..........................................................................................2-10
Figure 2-6 Quick Installation Overview ...................................................................................................2-11
Figure 2-7 Mount Sensor to Installation Bracket.....................................................................................2-12

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Figure 2-8 Rack Mount Display Mounting Hole Locations......................................................................2-13
Figure 2-9 Wall Mount Display Mounting Hole Locations.......................................................................2-14
Figure 2-10 Wiring Diagram....................................................................................................................2-16
Figure 2-11 DB25....................................................................................................................................2-17
Figure 2-12 DB25 to Terminal Blocks......................................................................................................2-17
Figure 2-13 Install the Up/Down Switch..................................................................................................2-18
Figure 2-14 Install the Override/Clear Switch.........................................................................................2-19
Figure 2-15 Install the Keylock Switch....................................................................................................2-20
Figure 2-16 Install the Speaker...............................................................................................................2-21
Figure 2-17 DB9......................................................................................................................................2-22
Figure 2-18 DB9 to Terminal Block.........................................................................................................2-22
Figure 2-19 Sensor to DB9 Terminal Block ............................................................................................2-23
Figure 2-20 Air Control Valve..................................................................................................................2-24
Figure 2-21 Air Control Valve to DB9 Terminal Block.............................................................................2-25
Figure 2-22 Down Switch to the Down Air Control Valve Coil ................................................................2-25
Figure 2-23 Stiletto Control to DB9 Terminal Block................................................................................2-26
Figure 2-24 J5 Wiring..............................................................................................................................2-27
Figure 2-25 J4 Wiring..............................................................................................................................2-27
Figure 2-26 System Power to DB9 Terminal Block ................................................................................2-28
Figure 2-27 Warning Labels (Not to Scale).............................................................................................2-29
Figure 6-1 Typical Electric Fields..............................................................................................................6-1
Figure 6-2 Typical Magnetic Fields...........................................................................................................6-1
Figure 6-3 Electric Field Pattern ...............................................................................................................6-2
Figure 6-4 Electric Field Patterns..............................................................................................................6-3
Figure 6-5 Magnetic Field Pattern.............................................................................................................6-3
Table of Tables
Table 1-1 D-TEC Specifications................................................................................................................1-3
Table 1-2 Installation Kit............................................................................................................................1-7
Table 1-3 Installation Bracket Options......................................................................................................1-8
Table 2-1 Equipment Recommended for Installation................................................................................2-2
Table 2-2 Installation Hardware................................................................................................................2-3
Table 3-1 Equipment Recommended for Operation.................................................................................3-2
Table 4-1 Equipment Recommended for Maintenance ............................................................................4-1
Table 4-2 Preventative Maintenance Schedule........................................................................................4-2
Table 5-1 State Indications .......................................................................................................................5-2

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Safety Summary
This section describes safety precautions for the D-TEC Safety System. These are
recommended precautions that personnel must understand and apply throughout many phases
of installation, operation, transportation, maintenance, storage, and troubleshooting. Be sure to
read and understand the entire manual, and contact The Will-Burt Company with any questions,
before performing any procedure outlined in this manual.
Signal Word Definitions
Per the ANSI Z535.4 standard, the following signal words and definitions are used to indicate
hazardous situations:
DANGER indicates an imminently hazardous situation that, if not avoided, will result in death or
serious injury.
WARNING indicates a potentially hazardous situation that, if not avoided, could result in death
or serious injury.
CAUTION indicates a potentially hazardous situation that, if not avoided, may result in minor or
moderate injury. It is also used to alert against unsafe practices.
General Safety Instructions
The following are general safety precautions that are not related to any specific procedures.
These are recommended precautions that personnel must understand and apply throughout
installation, operation, transportation, maintenance, storage, and troubleshooting. Additional
precautions that apply to specific procedures and steps may be listed with the procedure or step
to which they apply.
Electrocution Hazard! Contact with high voltage will result in death or serious injury. Observe
general safety precautions for handling equipment using high voltage. Do not locate or operate
mast near electrical lines, cables or other unwanted sources of electricity. Be sure to allow
sufficient clearance on all sides of the mast to allow for side sway. Do not operate mast in
lightning. Be certain electrical cables are undamaged and properly terminated. Always
disconnect power before performing service, repair, or test operations.
Safety Instruction –Read Manual! Failure to follow operating instructions could result in death
or serious injury. Read and understand the operator’s manual before using the D-TEC.

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Safety Instruction –Trained Personnel Only! Death or serious injury could result if proper
inspection, installation, operation and maintenance procedures are not observed. Installation,
operation, and maintenance to be performed by trained and authorized personnel only. Proper
eye protection should be worn when servicing the mast.
Tip Over Hazard! Mast tip over could result in death or serious injury. Do not operate in high
winds. Be certain mast is level, stable, and secure before and during installation, operation,
maintenance, and transportation. Operate on level ground only. Stand clear of mast and mast
payload during operation.
Safety Instruction –Resuscitation Alert! Personnel working with or near high voltages should
be familiar with modern methods of resuscitation. Such information may be obtained from the
Bureau of Medicine and Surgery.
Health and Safety Hazard! Solvent used to clean parts is potentially dangerous. Follow solvent
manufacturer’s safety procedures and recommendations. Avoid inhalation of fumes and also
prolonged contact to skin. Death or serious injury could occur if solvents are not handled
properly.
Safety Equipment! Helmets or hard hats, eye protection, gloves, and safety shoes must be
properly worn while working in the deployment area. Death or serious injury could result if
proper safety equipment is not properly worn.
Safety Instruction –Operation! At all times prior to mast operation, ensure:
The mast area is free of personnel and mechanical obstruction
All electrical cables are undamaged and properly terminated
The operator has full view of the mast during use
Any transit tie-downs on the payload have been removed
The vehicle is not moving
The Magnetic Warning Kit is installed on a vehicle
The area above the mast is free of mechanical obstructions and electrical power lines
Equipment Hazard! Do not raise mast while vehicle is in motion. Do not move vehicle while
mast is extended.

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Equipment Hazard! Do not allow objects to strike unit.
Pinch Point Hazard! Moving parts can crush and cut resulting in death or serious injury. Keep
clear of moving parts while operating mast.
Crush Hazard –Mast Failure! Death or serious injury could result if mast fails suddenly. Do not
stand directly beneath the mast or its payload. Be certain payload is properly installed and
secured.
Safety Instruction –Operation! Lamps are extremely hot when operating and should not
come into contact with people or combustible and/or explosive materials. Do not operate if
breakage occurs or unit is knocked over.
Symbols
The following are symbols that are used with the system and their meaning. Symbols are
provided for quick reference only. Read the label information with the symbols for additional
safety information. Contact The Will-Burt Company with any questions before performing any
procedure outlined in this manual.
This symbol indicates an electrocution hazard. In the case of this particular
unit, it indicates the presence of DC power.
This symbol indicates a general warning.

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Section 1 Introduction
Review this manual in its entirety. Contact The Will-Burt Company with any questions before
performing any procedure outlined in this manual. The views depicted in this manual are
provided for clarification and are subject to change without notice. Views are not to scale.
This manual describes installation, operation, maintenance, and troubleshooting procedures for
the D-TEC Safety System.
This manual is for the following D-TEC Safety Systems:
P/N: 5354501 (Rack Mount D-TEC System)
P/N: 5354601 (Wall Mount D-TEC System)
This manual is not for the following D-TEC Safety Systems:
P/N: 4370401 (Obsolete Rack Mount D-TEC System)
P/N: 4370402 (Obsolete Wall Mount D-TEC System)
Contact The Will-Burt Company for information on these and other Will-Burt products.
The D-TEC is a safety device which:
Mounts at the highest point of the mast/payload configuration
Provides overhead power line detection
Provides above-the-mast illumination
This unit is intended as a safety tool and in no way is a substitute for common sense and
caution.
1.1 Safety Precaution Notification
Refer to the Safety Summary for precautions to be observed while installing, operating, or
maintaining this equipment.

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1.2 Manual Organization
This manual is organized into the following sections:
Section 1 Introduction
Section 2 Installation
Section 3 Operation
Section 4 Maintenance
Section 5 Troubleshooting
Section 6 Reference
1.3 Definitions of Terms
Throughout this manual, the following terms are used:
D-TEC stands for the entire D-TEC Safety System (Sensor, Display, Installation Kit, and
Installation Bracket)
Mast refers to the telescoping structure that raises the payload
Payload stands for the object or equipment being raised by the mast to an operational
height
See Section 6.2 for an Extended Glossary of Terms used within this manual.

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1.4 Specifications
Table 1-1 lists specifications for the D-TEC.
Table 1-1 D-TEC Specifications
Functional Characteristic
Specification*
Detection
Simultaneous AC Voltage (Electric Field) and
Electromagnetic and Electrostatic (Magnetic Field)
Detection
AC Voltage Detection Range
Starting at 110 VAC / 60 Hz
Minimum Voltage Detection
2.3 Kilovolts/Meter at 0° (Reduced with angle)
Look-Up Light
LED
Input Voltage
11 to 33 VDC
Power Requirements
12 VDC 10 Amps or 24 VDC 5 Amps
Interconnecting Cable
2 twisted pair shielded (Sensor to Display)
Operating Temperature Range
-40°C to 71°C (-40°F to 160°F)
Duty Cycle
100%
Sensor Unit (P/N: 5354901)
Dimensions (L x W x H)
5 x 3.6 x 5.6 inches (127 x 92 x 141 mm)
Approximate Weight
3 lb. (1.4 kg)
IP Rating
IP67
Rack Mount Display (P/N: 5354801)
Dimensions (L x W x H)
19 x 6 x 1.75 inches (483 x 152 x 45 mm)
Approximate Weight
2.1 lb. (0.95 kg)
IP Rating
IP65
Wall Mount Display (P/N: 5354701)
Dimensions (L x W x H)
8.7 x 4.2 x 7 inches (220 x 105.9 x 177.8 mm)
Approximate Weight
4.4 lb. (2 kg)
IP Rating
IP65
* Note:
Dimensions and specifications are provided for reference only and are not intended for vehicle design
purposes.
Specifications may be subject to change without notice.

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1.5 Major Components
The major components of the system are:
(1) Sensor (P/N: 5354901)
(1) Rack Mount Display (P/N: 5354801) (For Rack Mount Kits only)
(1) Wall Mount Display (P/N: 5354701) (For Wall Mount Kits only)
(1) Installation Kit (P/N: 5523901)
(1) Installation Bracket
Air Control Valve Kit (For Pneumatic Masts Only)
1.5.1 Sensor (P/N: 5354901)
The Sensor (Figure 1-1):
Mounts to the top of the mast
Has two detection modes that operate simultaneously:
oElectric Field (E-Field) detection to sense the presence of nearby high voltage
AC
oMagnetic Field (H-Field) detection to sense the presence of nearby high current
AC
Includes a Look-Up Light composed of two ultra-bright white LEDS. An ambient light
sensor interacts with these to ensure they only illuminate when it is dark.
Communicates with the Display over an RS-485 link (Section 1.5.2 or Section 1.5.3)
Allows or disallows the operator to extend the mast based on electric field and magnetic
field detection, but does not provide direct power to the mast
Performs self-diagnostic routines each time the unit is powered up
Figure 1-1 Sensor
Look-Up Light
Vent
M6 Screws (2 Hidden)
MS3102E14S-2P Connector

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1.5.2 Rack Mount Display (P/N: 5354801) (Rack Mount Kits only)
The Rack Mount Display (Figure 1-2):
Is mounted inside the vehicle on a rack mount
Is wired into the mast Air Control Valve (pneumatic masts) or the Stiletto Control (Stiletto
masts)
Stops mast extension in the event of a hazardous condition
Communicates with the Sensor over an RS-485 link (Section 1.5.1)
Operates as the communications master with the Sensor (The Display initiates all
communication)
Includes an eight character alphanumeric LED display, a speaker output for audible
alarms and messages, inputs for switches, and a relay to enable or disable operator
engagement of a remote Air Control Valve (for raising the mast)
Performs self-diagnostic routines each time the unit is powered up
Front of Rack Mount Display
Back of Rack Mount Display
Figure 1-2 Rack Mount Display
Alphanumeric Display
Magnetic Field LED
Electric Field LED
System Ready LED
J6
J5
J4
J3

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1.5.3 Wall Mount Display (P/N: 5354701) (Wall Mount Kits only)
The Wall Mount Display (Figure 1-3):
Is mounted inside the vehicle on a wall
Is wired into the mast Air Control Valve (pneumatic masts) or the Stiletto Control (Stiletto
masts)
Stops mast extension in the event of a hazardous condition
Communicates with the Sensor over an RS-485 link (Section 1.5.1)
Operates as the communications master with the Sensor (The Display initiates all
communication)
Includes an eight character alphanumeric LED display, a speaker output for audible
alarms and messages, inputs for switches, and a relay to enable or disable operator
engagement of a remote Air Control Valve (for raising the mast)
Performs self-diagnostic routines each time the unit is powered up
Figure 1-3 Wall Mount Display
Alphanumeric Display
Magnetic
Field LED
Electric
Field LED
System Ready LED
J6
J5
J4
J3

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1.5.4 Installation Kit (P/N: 5523901)
The Installation Kit (Table 1-2) is used to assist in installation of the system.
Table 1-2 Installation Kit
P/N
Description
Qty
Usage
3597
Cap Screw ¼-20x4.00 PHIL
PAN HD-SSTL
4
Mounting Screws
900711
Electrocution Hazard Warning
Label
1
Provides warning about electrocution
hazards.
5526701
D-TEC Warning Label
1
Provides general safety precautions.
911960
D-TEC Override Danger Label
1
Provides overriding warning.
000021-503-501
5 Amp Fuse
1
Installed inline with power supply.
901723
Inline Fuse Holder
1
Installed inline with power supply.
34061
Cable Tie (Clear)
20
Used to secure cables inside the vehicle.
901765
Cable Tie (Black, UV Rated)
80
UV rated cable ties are used to secure
cables outside the vehicle.
908510
3-Position Toggle Switch
1
Used to operate the mast.
000016-400-101
Keylock Switch Operator
22mm
1
Used to override alarms.
000013-202-005
4-Pin Plug (MS3106E14S-2S)
1
Connects 2 PR D-TEC Custom Cable to
Sensor.
000016-300-101
Mushroom Operator 22mm
1
Used to clear and override alarms.
000016-901-101
Mounting Base with Normally
Opened Contact 22mm
2
000018-500-001
2 PR D-TEC Custom Cable
150 ft.
Connects to the Sensor.
000018-520-301
Jacketed 2-Conductor Cable
100 ft.
Connects to Speaker.
000023-000-440
Speaker (30 W Compact Horn)
1
Used to announce alarms
911184
Shipping Carton
1
Packaging
915169
Toggle Switch (MS35058-22)
1
Power Switch
000013-109-003
DB9 Plug with Pigtail
1
Connects to J3 on the Display.
000013-125-002
DB25 Plug with Pigtail
1
Connects to J6 on the Display.
901193
10 Circuit Terminal Block
3
Used to assist in electronically
connecting D-TEC components.
TP-5522901
D-TEC Operator’s Manual
1
Provides general information on the
operation of the D-TEC.
WD-5354501
D-TEC Wiring Diagram
1
Provides information on system wiring.

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1.5.5 Installation Bracket
The 18 inch (45.72 cm) Installation Bracket (Figure 1-4) is used to position the Sensor above
the payload.
Figure 1-4 Installation Bracket
Table 1-3 lists Installation Bracket options.
Table 1-3 Installation Bracket Options
P/N
Description*
5524101
18"Black Powder Coat Installation Bracket (Standard Version)
5524102
18"White Powder Coat Installation Bracket
* Note: The current version of D-TEC Sensor is smaller than the previous version of the D-TEC Sensor. To allow
for easy retrofitting of old-style systems to the current system, the D-TEC now ships standard with an 18 inch
(45.72 cm) Installation Bracket rather than the previously used 14 inch (35.56 cm) bracket. Using the 18 inch
Installation Bracket will position the Sensor in the same location that the previous Sensor would have been
positioned using a 14 inch bracket.

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1.5.6 Air Control Valve Kit (For Pneumatic Masts Only)
Operation of a pneumatic mast requires an Air Control Valve (Figure 1-5). The Air Control Valve
is used to stop the mast from extending in the event of an electric or magnetic field.
The Air Control Valve may be customer-provided or purchased separately through The Will-Burt
Company. For this application, Will-Burt offers Air Control Valve Kit Part Number 915530.
Figure 1-5 Air Control Valve
Exhaust
To Mast
Air Flow
Valve
Valve
Note: Hose Barbs are ؼ"

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