Dover OPW SiteSentinel iTouch M1500 User manual

Part Number: M1500, Rev. 6
Issue Date: Jan 17, 2020
Supersedes: May 17, 2016
6900 Santa Fe Drive •Hodgkins, IL 60525 • Tel: [phone] • Fax [phone] •www.opwglobal.com
M1500 SiteSentinel®iTouch™Tank-Gauge
Monitoring System
Installation Guide

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© Copyright 2015, OPW. Printed in the USA.
© 2015 Delaware Capital Formation, Inc. All Rights Reserved. DOVER and the DOVER logo are registered
trademarks of Delaware Capital Formation, Inc., a wholly owned subsidiary of Dover Corporation.
OPW Fuel Management Systems
Visit us at www.opwglobal.com, or contact us at:
Call 1-877-OPW-TECH (877-679-8324)
For calls outside US and Canada, call [phone]
Fax [phone]
Monday through Friday, 7:00 a.m. to 6:00 p.m., U.S. CST
For technician registration, see http://opwglobal.com/TechSupport/TechnicianRegistration.aspx.
For in-depth training via OPW University, see http://www.opwglobal.com/opw-u-training-registration.html

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Table of Contents
Introduction.............................................................................................................. 8
1.1 Warnings.................................................................................................................... 8
1.1.1 Safety................................................................................................................... 8
1.1.2 Compliance........................................................................................................... 8
1.1.3 Precision Leak Test.............................................................................................. 8
1.1.4 Initial Inspection.................................................................................................... 9
1.1.5 Connect Internal Battery....................................................................................... 9
Specifications .........................................................................................................10
1.2 SiteSentinel iTouch Controller ...................................................................................10
1.3 Printer........................................................................................................................11
Magnetostrictive Probe (Model 924B).....................................................................12
1.4 About the 924B Probe ...............................................................................................12
1.5 Probe Lengths/Installation Scenarios.........................................................................13
Controller Installation..............................................................................................15
1.6 Mounting the Controller .............................................................................................15
1.7 Mounting the Optional Printer Bracket.......................................................................16
1.8 Installing the Controller Power Supply Conduit..........................................................17
1.9 Wiring the Controller Power Supply...........................................................................17
4.1.1 Grounding the SiteSentinel iTouch Tank Gauging System...................................19
4.1.2 SiteSentinel iTouch Port Protection .....................................................................19
Preparing for Probe and Sensor Installation............................................................21
1.10 Probe and Sensor Wiring...........................................................................................21
5.1.1 Compliance..........................................................................................................21
5.1.2 Wire Type............................................................................................................21
5.1.3 Probe Wiring........................................................................................................21
5.1.4 Sensor Wiring......................................................................................................21
5.1.5 Wire Length.........................................................................................................21

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5.1.6 Wire Splices.........................................................................................................21
1.11 Conduit......................................................................................................................22
Probe-Cable Seal-Offs............................................................................................23
1.12 Junction Boxes..........................................................................................................24
Preparing Your Tanks for Probes............................................................................25
1.13 Underground Tank Manholes ....................................................................................25
1.14 Precision Leak Test...................................................................................................26
1.15 Probe Placement.......................................................................................................26
Product Float and Water Float Offsets....................................................................27
1.16 Offset Procedure .......................................................................................................27
8.1.1 Float Offset Example...........................................................................................27
1.17 Calculating Tank Tilt and Offset Factor......................................................................28
Probes....................................................................................................................29
1.18 Probe Floats..............................................................................................................29
Probes Wiring......................................................................................................37
Sensors...............................................................................................................39
1.19 Before You Begin ......................................................................................................39
1.20 30-3206 Interstitial Hydrocarbon Liquid/Water Sensor...............................................39
11.1.1 Installing the 30-3206 ..........................................................................................40
11.1.2 1st I.S. Module Position –Hydrocarbon Liquid.....................................................41
11.1.3 2nd I.S. Module Position –Water.........................................................................41
1.1.1 Testing and Decontaminating the Interstitial Hydrocarbon Liquid/Water Sensor..41
1.21 30-3207 Hydrocarbon Liquid Sensor .........................................................................42
11.1.4 Installing the 30-3207 ..........................................................................................43
11.1.5 Controller Setup for Hydrocarbon Liquid Sensor..................................................44
11.1.6 Testing and Decontaminating the Hydrocarbon Liquid Sensor.............................44
1.22 30-3210-06, -10, -15 Hydrocarbon Liquid/Water Sensor............................................45

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1.23 Installing the 30-3210 ................................................................................................46
11.1.7 1st I.S. Module Position –Hydrocarbon...............................................................47
1.24 Hydrocarbon Liquid/Water Sensor Test and Decontamination Procedures................48
30-3219-12 Hydrocarbon Liquid Sump Sensor....................................................49
12.1.1 Installing the 30-3219-12 .....................................................................................50
12.1.2 Controller Setup for Hydrocarbon Liquid Sump Sensor........................................51
12.1.3 Testing and Decontaminating the Hydrocarbon Liquid Sump Sensor ..................51
30-3221-1 Single Level Sump Sensor..................................................................52
13.1.1 Installing the 30-3221-1.......................................................................................53
13.1.2 Controller Setup for Single-Level Sump Sensor...................................................54
13.1.3 Testing the Single-Level Sump Sensor................................................................54
30-3221-2 Dual Level Reservoir Sensor..............................................................55
14.1.1 Installing the 30-3221-2.......................................................................................55
14.1.2 Testing the Dual-Level Reservoir Sensor Float....................................................57
1.25 30-3221-1A, -1B Interstitial Level Sensors.................................................................58
14.1.3 Installing the 30-3221-1A, -1B .............................................................................59
14.1.4 Controller Setup for Interstitial Level Sensor........................................................60
14.1.5 Testing the Interstitial Level Sensor.....................................................................60
1.26 30-3222 Hydrocarbon Vapor Sensor .........................................................................61
14.1.6 Installing the 30-3222 ..........................................................................................62
14.1.7 SiteSentinel iTouch Controller Setup for Hydrocarbon Vapor Sensor ..................63
14.1.8 Testing and Decontaminating the Hydrocarbon Vapor Sensor.............................63
1.27 30-3223 Interstitial Optical Liquid Sensor...................................................................64
14.1.9 Installing the 30-3223 ..........................................................................................65
14.1.10 Controller Setup for Interstitial Optical Liquid Sensor........................................65
14.1.11 Testing the Interstitial Optical Liquid Sensor.....................................................66
1.28 30-3224 Combo Single Level/Hydrocarbon Liquid Sump Sensor...............................66

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14.1.12 Installing the 30-3224 .......................................................................................67
14.1.13 Testing the Float Sensor Portion of the Combo Sensor....................................69
14.1.14 Testing and Decontaminating the Hydrocarbon Sensor Portion of the Combo
Sensor 69
1.29 30-3225 Combo Dual Level/Hydrocarbon Liquid Sump Sensor.................................70
14.1.15 Installing the 30-3225 .......................................................................................71
14.1.16 Controller Setup for 30-3225.............................................................................72
14.1.17 Testing the Float Sensor Portion of the Combo Sensor....................................73
14.1.18 Testing and Decontaminating the Hydrocarbon Portion of the Combo Sensor..73
14.1.19 Testing the Water Sensor Portion of the Combo Sensor...................................74
External Device Connection.................................................................................75
RJ-45 Communication Ports................................................................................76
Terminal Block Detail...........................................................................................77
Printer Option ......................................................................................................78
1.30 Modem Connections..................................................................................................79
CAP Connection for SiteConnect Software..........................................................80
1.31 POS Interface Option.................................................................................................80
1.32 Built-in TCP/IP Connections ......................................................................................80
Appendix A –LCD Screen Icons...............................................................................................81
Appendix B –Alarm Kit Option..................................................................................................82
Appendix C –POS Interface.....................................................................................................84
Appendix D –Upgrading SiteSentinel iTouch Software Via SiteConnect ..................................85
Appendix E –OM4 Output Module Option ................................................................................87
Appendix F –LPG Probe Option...............................................................................................90
Appendix G –Probe Comparison..............................................................................................94
Appendix H –Hardware for SiteSentinel iTouch Controller Main Board....................................95
Dip-Switch.................................................................................................................................98
Appendix J –EPA Certifications................................................................................................99
Appendix K Declaration of Conformity.....................................................................................117
Appendix L - iTouch Control Drawing......................................................................................121

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Appendix M - 924B Probe Control Drawing.............................................................................123
Warranty............................................................................................................126

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Introduction
This manual describes the installation procedures for the SiteSentinel® iTouch™ Integrated Monitoring
System. Included in this manual are installation instructions for the Controller, probes and sensors.
1.1 Warnings
1.1.1 Safety
When working in an environment containing fuel and fuel vapors, there is
ALWAYS a risk of fire and explosion.
TO AVOID SEVERE INJURY OR DEATH, KEEP ALL POSSIBLE IGNITION
SOURCES AWAY FROM HAZARDOUS AREAS.
Disconnect power before installing. DO NOT install this equipment in a
volatile, combustible or explosive atmosphere (the “hazardous area” defined
in the National Electrical Code).
Certain components have DANGEROUS voltages even with the power cord
disconnected.
NOTE: Many of the procedures described in the following pages must be followed for each tank that is to be
included in the system. Please read the directions carefully before proceeding.
Improper installation may endanger installers and users of this equipment! Read these instructions
CAREFULLY.
Installers must know the requirements of intrinsically safe devices, and must strictly obey instructions in this
manual to perform a safe installation.
1.1.2 Compliance
Installation must comply with the National Electrical Code (NFPA No. 70) and the Automotive and Marine
Service Station Code (NFPA No. 30A).
Follow all of your local or regional codes as well.
A fuel tank is a hazardous area as defined in the NEC. Do not mount any part of
the system, or any external devices (other than probes or sensors) within or above
the hazardous area.
1.1.3 Precision Leak Test
A precision leak test should be performed on each tank –especially older ones –before installing the
SiteSentinel iTouch. This test makes sure that leak data generated by the system is accurate and reliable. A
pressurized precision leak test can be done on a tank after the probe has been installed, but DO NOT let the
pressure exceed 20 psi.

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1.1.4 Initial Inspection
The packing list contains details about your system. It is packed in the box with this manual. Store this sheet in
a secure location. Be sure to check the packaging carefully for any damage that might have occurred during
shipping.
1.1.5 Connect Internal Battery
For shipping, the internal battery in the Controller is disconnected. To activate the internal battery, remove the
yellow strips.
Figure 1-1 Yellow Battery Strip

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Specifications
NOTE: “I.S.” (Intrinsically Safe) Interface Module refers to the sealed “terminal strip” inside the Controller.
“I.S. Interface Module Position” refers to one (1) set of three (3) screw terminals on this terminal strip (for
power, signal and ground connections). Each I.S. Interface Module contains four “positions.”
1.2 SiteSentinel iTouch Controller
iTouch Controller Specifications
Physical Dimensions:
Height: 23.5 cm (9.25 in)
Width: 31.1 cm (12.25 in)
Depth: 13.3 cm (4.25 in)
Power Input:
100-250 VAC, 50/60 HZ, 1.0A
Operating Temperature Range:
0° - 40° C. (32° - 104° F)
Remote Alarm Output:
Contact Rated at 30 VAC/DC 2A
Probe and Sensor Capacity:
16 probes and/or sensors
I.S. Interface Module:
14.5 VDC, 220 mA, 6.4 uF, 6 mH
Optional Output Module OM4:
See Appendix E –OM4 Output Module Option
MOUNT THE CONTROLLER AND PRINTER OUTSIDE THE HAZARDOUS
AREA.
Substituting components will impair intrinsic safety.
For connection to intrinsically safe devices used in EEX ia IIA T4
(IEC/CENELEC) and Class 1, Division 1, Group D (North America) hazardous
locations.
For use ONLY with equipment specified in these installation instructions.

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1.3 Printer
A thermal printer, the Seiko Model DPU-414, is available for reports and other printouts. See Figure 4-2 on
page 16 for mounting instructions.
Printer Specifications
Physical Dimensions:
Height: 17.8 cm (7 in)
Width: 17.8 cm (7 in)
Depth: 7.6 cm (3 in)
Power Input:
Provided by Controller
Operating Temperature Range:
0° - 40°C (32° - 104°F)

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Magnetostrictive Probe (Model 924B)
Figure 3-1 924B Probe
1.4 About the 924B Probe
The 924B probe uses magnetostrictive principles to derive product and water levels, and product temperatures.
These probes are primarily used in under-ground storage tanks for both inventory and leak detection.
Two floats can be fitted to the probe shaft: The upper (product) float sits on top of the product, and the lower
(water float) sits on the product/water boundary at the bottom of the tank.
Five temperature sensors reside in the probe shaft for measuring product temperature. They are located at
positions of approximately 10%, 20%, 40%, 60% and 80% of the tank volume (based upon a cylindrical tank).
The sensors compensate for the expansion and contraction of the product with temperature and thus producing
net corrected product volume.
924B Probe Specifications
Operating Temp. Range:
-40° - 60°C (-40° - 140°F)
Head Dimensions:
With connector, 21.5 cm x 2.54 cm (8.5 in x 1 in)
Cable:
1.83 m (6 ft) of gas & oil resistant cable
Sensor Power:
Must be provided by OPW Fuel Management
Systems’ I.S. Interface Module
Certifications:
North America: Class I, Division 1, Group D
Outside North America:
Ex ia IIA T4 Ga
DEMKO 11 ATEX 1012670X
IECEx UL 11.0012X
Level Resolution:
0.0127 mm (0.0005 in)
Temp. Sensor Resolution:
Less than +/- 0.3°C or 0.5°F

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Special Conditions for safe use:
On devices supplied with 4-inch floats: to avoid build-up of static charge, do not rub with a dry cloth or clean in
any manner that would result in a charge build-up. Discharge the probe outside of the hazardous area before
putting it into service.
These devices have not been evaluated for use across a boundary wall.
The upper housing cover in the top of the enclosure is aluminum. Care must be taken to avoid ignition hazards
due to impact or friction.
NOTE: A probe for LPG tanks is also available, see Appendix F –LPG Probe Option.
1.5 Probe Lengths/Installation Scenarios
Figure 3-2 Probe in Manhole Equipped Tank

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Figure 3-3 Probe in Tank Without Manhole

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Controller Installation
Do not mount the Controller or external printer within or above the hazardous
area.
Choose a Mounting Location for the Controller and Printer. Choose an indoor mounting location where it will be
protected against moisture and extreme temperature and humidity conditions.
Wall mount the Controller at eye level close to a circuit breaker. Leave room above and below Controller for
power, probe, sensor, remote alarm, and other conduits that must be connected to the Controller.
If purchased, also leave room for the optional printer that normally mounts to the left of the Controller.
1.6 Mounting the Controller
Mount the Controller to the wall using the dimensions shown in Figure 4 on page 19. The four (4) mounting
holes are 0.80 cm (0.3125 in) diameter. Use as large a fastener as possible.
Do not drill holes in the SiteSentinel iTouch cabinet.
Figure 4-1 Mounting Footprint

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1.7 Mounting the Optional Printer Bracket
Mount the printer bracket to the wall using Figure 5, below. Holes are 0.56 cm (0.177 in). Use as large a
fastener as possible, but ensure that the fastener does not protrude past the recess in the bracket.
Figure 4-2 Printer Bracket Mounting Dimensions

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1.8 Installing the Controller Power Supply Conduit
A local circuit breaker/disconnect device must be installed close to the Controller. Run conduit from this local
breaker back to the main site distribution panel. Install 13 mm (0.5 in) rigid steel conduit from the local circuit
breaker panel to the top right Controller knockout Figure 6 below.
NOTE: The left knockout is reserved for optional external alarm wiring.
Figure 4-3 Controller Conduit Knockouts
Do not connect the Controller to equipment that exceeds the maximum ratings of
voltage and current as specified in Section 2, Specifications. Probe cables and
sensor wiring must not share conduit with any other wiring.
1.9 Wiring the Controller Power Supply
NOTE: The power supply automatically adjusts for supply voltages from 100 to 250 VAC.
1. Pull two #14 AC power wires and one #12 AWG ground wire through the conduit from the distribution
panel to the local breaker dedicated to the Controller.
2. Pull two #14 AC power wires and one #12 AWG ground wire through the conduit from the local breaker
to the controller.
3. Just enough wire through the bushing to attach to the 3-pin green terminal block located on right of the
Controller circuit board.
4. Connect AC neutral and AC hot wires (order not important) to pins 1 and 3 of the green terminal block.
Center pin is not used. Attach the cover to the terminal block.

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5. Attach the ground wire to one of the ground terminal studs (near the top knockouts marked as ground_
and run back to the main distribution panel for connection.
NOTE: The ground wire must be #12 AWG or larger.
Some countries/states require a redundant ground wire; this should be attached to the second ground
terminal stud and run back to the main distribution panel for connection.
Power wiring must enter the Controller via the designated power conduit knockout.
Connect the power wires to a dedicated circuit.
See Specifications on page 10 for power requirements.
Protecting communication ports and ensuring site intrinsic safety for the SiteSentinel iTouch
Proper Grounding of the SiteSentinel iTouch is essential for protecting the communication ports and lessens
the risks of hazardous situations occurring when power surges or lightning strikes happen. This document
outlines the recommended practices for a safe and damage-free installation.

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4.1.1 Grounding the SiteSentinel iTouch Tank Gauging System
There are two ground lugs within the SiteSentinel iTouch (see Figure 4-4 below). You will need to install two
continuous ground wires (green 12 AWG or larger) from both ground lugs connected back to the distribution
panel ground. The intrinsic barriers rely on these ground connections; if they are not present the barriers will
not work. The redundant ground ensures that the SiteSentinel iTouch will operate properly and safety.
Figure 4-4 SiteSentinel iTouch Controller Ground Lugs
4.1.2 SiteSentinel iTouch Port Protection
The communication ports can be damaged by ground faults within the SiteSentinel iTouch. If you are
communicating from another type of system, such as a point-of-sale (POS) system, to the SiteSentinel iTouch
and there is a slightly ground potential difference, this difference will either cause immediate failure of the
SiteSentinel iTouch, or will cause a failure over time. To eliminate this possible damage, make sure the other
equipment is grounded back to the same ground potential as the SiteSentinel iTouch at the distribution panel.
In addition, a 12 AWG or larger wire can be run from the ground lug in the SiteSentinel iTouch to the ground of
the other equipment.
OPW Fuel Management Systems can provide an external surge suppressor (Part #: 75-0104). This device will
help protect the ports from power surges or lightning strikes.
Figure 4-5 External Surge Protector

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To install, simply insert the surge protector in series between the incoming communication lines and the I/O
port of the SiteSentinel iTouch. The surge protector ground wire must be connected to the metal chassis of the
SiteSentinel iTouch or to the ground lug within the SiteSentinel iTouch. Each port requires one surge protector.
Figure 4-6 External Surge Protector I/O Port Connection