Dover OPW SiteSentinel iSite User manual

INTEGRATED MONITORING SYSTEM
Installation Manual
www.opwglobal.com
Central Technical Support Number: 1-877-OPW-TECH (877-679-8324)
Calls outside US and Canada: 1-708-485-4200 Fax: [phone]
Hours: Monday through Friday, 7:00 am to 6:00 pm, US CST
Part Number: M1600, Revision - 7
Issue Date: 1/15/20
Supersedes: 1/9/2015

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2013 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' System and Replacement Parts Warranty Statement
OPW Fuel Management Systems warrants that all OPW Tank Gauge and Petro Vend Fuel Control systems supplied by OPW Fuel Management Systems to the Original Purchaser will be free
from defects in material and/or workmanship under normal use and service for a period of 12 months from the date of installation or 18 months from the date of shipment from OPW. Additionally,
OPW Fuel Management Systems warrants that all upgrades and replacement parts (new and remanufactured) supplied by OPW Fuel Management Systems will be free from defects in material
and workmanship under normal use and serviced for a period of 90 days from the date of installation or for the remainder of the system’s original warranty, whichever is greater, as set forth in
the first sentence of this statement. The foregoing warranties will not extend to goods subjected to misuse, neglect, accident, or improper installation or maintenance or which have been altered
or repaired by anyone other than OPW Fuel Management Systems or its authorized representative. The buyer’s acceptance of delivery of the goods constitutes acceptance of the foregoing
warranties and remedies, and all conditions and limitations thereof.
If a claim is made within the warranted time period that any equipment and/or remanufactured part is defective in material or workmanship under normal use and service, such equipment and/or
remanufactured part shall be returned to OPW Fuel Management Systems, freight prepaid. If such equipment or remanufactured part is found by OPW Fuel Management Systems in its sole
judgment to be defective in material or workmanship under normal use and service, OPW Fuel Management Systems shall, at its sole option, repair or replace such equipment and/or
remanufactured part (excluding, in all instances, fuses, ink cartridges, batteries, other consumable items, etc.) OPW Fuel Management Systems shall not be held responsible for data loss or
retrieval on returned products.
The warranties, as set forth above, are made expressly in lieu of all other warranties, either expressed or implied (including, without limitation, warranties of merchantability and fitness for any
particular purpose and of all other obligations or liabilities on OPW Fuel Management Systems’ part.) Further, OPW Fuel Management Systems neither assumes, nor authorizes any other
person to assume for it, any other liability in connection with the sale of the systems, or any new/replacement part that has been subject to any damage from any act of nature or any force
majeure. Any terms proposed by the Original Purchaser either orally or in writing are expressly rejected. The terms and conditions expressed in this document may only be changed upon the
express written consent of OPW Fuel Management Systems.
The term “Original Purchaser” as used in these warranties shall be deemed to mean the authorized OPW Fuel Management Systems’ distributor to which the system or any new/replacement
part was originally sold. These warranties may be assigned by the original purchaser to any of its customers who purchase any OPW Fuel Management Systems’ systems or new/replacement
parts. This document shall be governed by and construed in accordance with the law of the State of Illinois. OPW Fuel Management Systems and Original Purchaser agree that any legal action
or proceeding under or with respect to this document may ONLY be brought in the courts of the State of Illinois, or the United States District Court having jurisdiction in the City of Hodgkins,
Illinois. Original Purchaser expressly consents to personal jurisdiction in any of the above-mentioned forums and agrees to waive all defenses based on improper venue or inconvenient form
should an action be brought therein.
The sole liability of OPW Fuel Management Systems, for any breach of warranty, shall be as set forth above. OPW Fuel Management Systems does not warrant against damage caused by
accident, abuse, faulty or improper installation or operation. In no event shall manufacturer’s liability on any claim for damages arising out of the manufacture, sale, delivery or use of the goods
exceed the original purchase price of the goods. In no event shall OPW Fuel Management Systems be liable for any direct, indirect, incidental or consequential damage or loss of product.
TERMS
Ex-works our factory, Hodgkins, Illinois, USA
Installation not included.
All trade names are registered. Patents pending.
Subject to engineering improvement and/or other changes.

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Table of Contents
Contents
1 Before You Begin .........................................................................................................................................................................................................................10
1.1 Installer Safety..............................................................................................................................................................................................................................10
1.2 Precision Leak Test......................................................................................................................................................................................................................10
1.3 Initial Inspection............................................................................................................................................................................................................................10
1.4 Manifolded Tanks.........................................................................................................................................................................................................................10
2 System Overview .........................................................................................................................................................................................................................11
2.1 SiteSentinel® iSite™ Console......................................................................................................................................................................................................11
2.1.1 Blank Door Unit.....................................................................................................................................................................................................................11
2.2 Network Connections ...................................................................................................................................................................................................................12
2.2.1 DHCP and Static IP Connections .........................................................................................................................................................................................12
2.2.2 Direct Connections ...............................................................................................................................................................................................................13
2.3 Peripheral Connections................................................................................................................................................................................................................14
2.3.1 Petro-Net™ Connections......................................................................................................................................................................................................14
2.3.2 Wireless Connections...........................................................................................................................................................................................................14
2.3.3 Ethernet Connections...........................................................................................................................................................................................................14
2.4 The VSmart Module .....................................................................................................................................................................................................................18
2.4.1 VSmart Module Connections................................................................................................................................................................................................20
2.4.2 VSmart & I/O Module AC Wiring...........................................................................................................................................................................................20
2.5 Tank Alert Modules ......................................................................................................................................................................................................................26
2.5.1 Tank Alert Wiring..................................................................................................................................................................................................................26
2.6 Internal Printer..............................................................................................................................................................................................................................28
2.6.1 Installation Procedure...........................................................................................................................................................................................................28
3 Tank Preparation..........................................................................................................................................................................................................................29

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3.1 Probe Placement..........................................................................................................................................................................................................................29
3.2 Probe Installation in Underground Tanks.....................................................................................................................................................................................30
3.2.1 Calculating Product Offset....................................................................................................................................................................................................31
4 Probe Installation..........................................................................................................................................................................................................................32
4.1 Adaptor Collar & Riser Cap..........................................................................................................................................................................................................32
4.2 Probe Floats.................................................................................................................................................................................................................................32
4.3 Model 924B Probes......................................................................................................................................................................................................................35
4.5 Flex Probe Installation..................................................................................................................................................................................................................37
4.5.1 Probe Length Determination.................................................................................................................................................................................................37
4.5.2 Installation Preparations.......................................................................................................................................................................................................37
4.5.3 Installation Procedure...........................................................................................................................................................................................................37
4.5.4 Installing Adaptor, Float, Weight on the Probe.....................................................................................................................................................................38
4.5.5 Installing the Flex Probe.......................................................................................................................................................................................................38
4.5.6 Finishing the Flex Probe Installation.....................................................................................................................................................................................39
4.5.7 Flex Probe Specifications.....................................................................................................................................................................................................40
5 Sensors ........................................................................................................................................................................................................................................41
5.1 IntelliSense™ Technology............................................................................................................................................................................................................41
5.2 Multi-drop Installation ...................................................................................................................................................................................................................41
5.3 Interstitial Level Sensor Float Switch............................................................................................................................................................................................42
5.4 Single-Level Sump Sensor...........................................................................................................................................................................................................43
5.4.1 Installation.............................................................................................................................................................................................................................43
5.5 Universal Sump Sensor................................................................................................................................................................................................................44
5.5.1 Installation.............................................................................................................................................................................................................................44
5.6 Liquid-Only Float Sensor..............................................................................................................................................................................................................45
5.6.1 Installation.............................................................................................................................................................................................................................45
5.7 Discriminating Dispenser Pan Sensor..........................................................................................................................................................................................46

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5.7.1 Installation.............................................................................................................................................................................................................................46
5.8 Discriminating STP Sump Sensor................................................................................................................................................................................................47
5.8.1 Installation.............................................................................................................................................................................................................................47
5.9 Hydrocarbon Vapor Sensor..........................................................................................................................................................................................................48
5.9.1 Installation.............................................................................................................................................................................................................................48
5.10 Discriminating Interstitial Sensor..................................................................................................................................................................................................49
5.10.1 Installation.............................................................................................................................................................................................................................49
5.11 Interstitial Hydrocarbon Liquid Sensor with Water Indicator.........................................................................................................................................................50
5.12 Hydrocarbon Liquid Sensor withWater Indicator .........................................................................................................................................................................51
5.13 Interstitial Sensor..........................................................................................................................................................................................................................52
5.13.1 Interstitial Sensor Installation................................................................................................................................................................................................52
5.14 Dual-Float Dispenser Sump Sensor.............................................................................................................................................................................................53
5.15 Dual-Float STP Sump Sensor......................................................................................................................................................................................................54
5.16 Dual-Float Brine Sensors.............................................................................................................................................................................................................55
5.16.1 Dual-Float Brine Sensor (D-10)............................................................................................................................................................................................55
5.16.2 Dual-Float Brine Sensor (D-20B)..........................................................................................................................................................................................56
5.17 Reservoir Sensor Installation .......................................................................................................................................................................................................57
5.18 Density Measurement Sensor (DMS)...........................................................................................................................................................................................58
5.18.1 DMS Installation....................................................................................................................................................................................................................59
5.18.2 DMS Configuration ...............................................................................................................................................................................................................59
5.18.3 Tank Thresholds...................................................................................................................................................................................................................62
5.18.4 DMS Preliminary Calibration.................................................................................................................................................................................................62
5.18.5 DMS Final Calibration and Maintenance..............................................................................................................................................................................62
6 Leak Detection .............................................................................................................................................................................................................................63
6.1 Volumetric Line Leak Detector (VLLD) Sensor.............................................................................................................................................................................63
6.1.1 Prior to Installation................................................................................................................................................................................................................63

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6.1.2 Installation.............................................................................................................................................................................................................................64
7 Line Interface Module (LIM) .........................................................................................................................................................................................................65
7.1.1 Installation Overview.................................................................................................................................................................................................................66
8 Conduit & Cabinet Installation......................................................................................................................................................................................................68
8.1 Console Installation......................................................................................................................................................................................................................68
8.2 VSmart Module Installation ..........................................................................................................................................................................................................69
8.3 Line Interface Module (LIM) Installation .......................................................................................................................................................................................69
8.4 Probe & Sensor Conduits.............................................................................................................................................................................................................70
8.4.1 Circuit Breaker Conduits.......................................................................................................................................................................................................70
8.4.2 RS-232 Communications Conduits.......................................................................................................................................................................................70
8.5 I/O Device Conduits .....................................................................................................................................................................................................................71
9 Sensor Installation........................................................................................................................................................................................................................72
9.1 Introduction...................................................................................................................................................................................................................................72
9.2 Dry-Well Monitoring, Single-Wall Tank.........................................................................................................................................................................................73
9.3 Wet-Well Monitoring, Single-Wall Tank........................................................................................................................................................................................75
9.4 No-Well Monitoring, Double-Wall Tank.........................................................................................................................................................................................76
9.5 Double-Wall Tank with Well Monitoring........................................................................................................................................................................................77
10 Probe-Cable Seal-Offs .................................................................................................................................................................................................................79
11 Other System Parameters............................................................................................................................................................................................................80
11.1 VSmart Module Petro-Net™ Addressing......................................................................................................................................................................................80
12 Installation with Existing OPW/EECO Equipment ........................................................................................................................................................................81
12.1 Model 924A Probes......................................................................................................................................................................................................................81
12.2 Model EECO Probes....................................................................................................................................................................................................................82
12.3 SiteSentinel® iSite™ Smart Module.............................................................................................................................................................................................83
12.4 Waterproof Field Electrical Connections ......................................................................................................................................................................................84
13 ACR/RIM ......................................................................................................................................................................................................................................85

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13.1 Prior to Installation........................................................................................................................................................................................................................86
13.2 Installation Procedure...................................................................................................................................................................................................................86
13.2.1 ACR/RIM Hardware Installation............................................................................................................................................................................................87
13.2.2 ACR/RIM Board Jumper Setup.............................................................................................................................................................................................89
Appendix A: Model 924B Probe Part Numbers ..........................................................................................................................................................................................91
Appendix B: Output Relay Installation Report ............................................................................................................................................................................................92
Appendix C: Sensor Labels........................................................................................................................................................................................................................94
Appendix D: 7100V Flex Probe Installation Records..................................................................................................................................................................................96
Appendix E: Model 924B Probe Installation Records.................................................................................................................................................................................98
Appendix F: Icon Glossary........................................................................................................................................................................................................................100
Appendix G: Maintenance Functions........................................................................................................................................................................................................120
Use of Maintenance Kit........................................................................................................................................................................................................................120
Backup and Restore of Configuration & Backup Database .................................................................................................................................................................121
Connecting Directly via Crossover Cable.............................................................................................................................................................................................122
Connecting USB Keyboard ..................................................................................................................................................................................................................122
Appendix H: OM4 Output Module for SiteSentinel®iSite........................................................................................................................................................................123
Codes...................................................................................................................................................................................................................................................124
Hazardous Area Definition...............................................................................................................................................................................................................124
Connections .........................................................................................................................................................................................................................................124
Appendix I: SiteSentinel®and EMCO Sensors without IntelliSense™ Board...........................................................................................................................................125
Hydrocarbon Liquid/Water Sensor.......................................................................................................................................................................................................125
Hydrocarbon Vapor Sensor..................................................................................................................................................................................................................126
Combo Single Level / Hydrocarbon Liquid Sump Sensor....................................................................................................................................................................127
Combo Dual Level/ Hydrocarbon Liquid Sump Sensor........................................................................................................................................................................128
Single Level Sump Sensor...................................................................................................................................................................................................................129
Dual Level Reservoir Sensor ...............................................................................................................................................................................................................130

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Interstitial Level Sensors......................................................................................................................................................................................................................131
Hydrocarbon Liquid Sump Sensor .......................................................................................................................................................................................................132
Interstitial Optical Liquid Sensor...........................................................................................................................................................................................................133
Appendix J: Console Boards ....................................................................................................................................................................................................................134
Appendix K: System Functional Testing...................................................................................................................................................................................................137
Appendix L: Annual Inspection Checklist..................................................................................................................................................................................................140
Declaration of Conformity.........................................................................................................................................................................................................................142
Index.........................................................................................................................................................................................................................................................144
NOTES: ....................................................................................................................................................................................................................................................146

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Applicable Warnings
The inside of the SiteSentinel → iSite  Console contains no useable parts
and operates on high-voltage circuitry; therefore, ONLY certified
technicians should be allowed to access the console. However, the
internal printer (if installed) may be accessed by the user for regular
maintenance including paper replacement. The printer is accessed
through the door on the right side of the console.
The SiteSentinel® iSite™ Console is powered by a lithium battery which
may require periodic replacement.
CAUTION: Replacing this battery with an incompatible type may lead to
complications including EXPLOSION or FIRE.
Once removed, used batteries must be properly disposed of at a battery-
recycling center.
The SiteSentinel® iSite™ Console uses RJ-11 telephone connectors for
operation –all wires used with these connectors must be 26 AWG or
larger.
A readily accessible external disconnect device must be installed for any
permanently connected equipment.
A readily accessible electrical outlet should be installed near any
equipment requiring access via a plug connection.
Figure 1-1 SiteSentinel® iSite™ Console

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1 Before You Begin
Improper installation may endanger installers and users of this equipment!
Read these instructions CAREFULLY.
1.1 Installer Safety
Installers must be experienced with the requirements of intrinsically safe
devices and must strictly obey the instructions in this manual to perform
a safe installation.
Installation must be in accordance with the U.S. National Electrical Code
(NFPA No. 70) and the Automotive and Marine Service Station Code
(NFPA No. 30A).
For Installations outside of the United States, ensure that the installation
adheres to all applicable local codes.
A fuel tank is a hazardous area as defined in the NEC. Only non-
intrinsically safe devices can be installed in or above the Class 1
Division 1 Hazardous area.
1.2 Precision Leak Test
A precision leak test should be performed on each tank— especially
older ones —before installing the SiteSentinel® iSite™ Integrated Tank
Monitoring System. This test ensures that leak data generated by the
system is accurate and reliable. A pressurized precision leak test can be
performed on a tank after the probe has been installed, but pressure is
NOT to exceed 5 psi.
Most regulatory agencies will accept the ATG tank test as the
acceptance test on new tank installations.
1.3 Initial Inspection
The console Data Sheet, which can be downloaded from the OPW
Global website at www.opwglobal.com, provides specific details about
your system. Store this sheet in a secure location.
All packaging materials should be inspected thoroughly for damage
that may have occurred during shipping.
1.4 Manifolded Tanks
Tanks can be physically connected or manifolded so that product flows
freely between them. To monitor manifolded tanks with the
SiteSentinel® iSite™ system, each tank in the group must have its own
probe installed and all probes must be connected to the same VSmart
Module.
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 all
instructions carefully before proceeding.

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2 System Overview
2.1 SiteSentinel® iSite™ Console
The SiteSentinel® iSite™ console (Figure 1-1 SiteSentinel® iSite™
Console) monitors up to 256 probes, 64 AST (Flex) probes, 1,024
sensors or combination of each. The console is equipped for up to 16
external output devices to be utilized at once. Since only AC power
connections and Petro-Net communication connections are required, the
console can be installed in many locations within a fueling facility.
The SiteSentinel® iSite™ console can be operated via the integrated
15˝ (38.1 cm) touch screen display, a local PC connection, or a remote
PC connection. To operate the SiteSentinel® iSite™ console via PC, an
Internet browser capable of rendering Flash 7.0 or higher is required. No
additional hardware or proprietary software is required for remote
connections.
Operation of the console via a local PC connection requires use of the
supplied crossover Ethernet connection cable. To connect remotely via
a local or corporate LAN/WAN, the system’s IP address may be entered
into your Internet browser’s address bar. For remote connections via
other methods, including VNC Viewer software, consult an IT
professional for assistance.
The SiteSentinel® iSite™ supports up to 10 simultaneous browser
sessions in addition to one session via the integrated LCD touch screen.
2.1.1 Blank Door Unit
For sites choosing to operate the console via remote connections only, a
Blank Door option exists. When enabled, the console’s touch screen
display will not be activated; instead, an illuminated push button will be
available on the front panel for alarm notification and acknowledgement.
SiteSentinel® iSite™ Console Specifications
Dimensions:
Width: 15” (38.1 cm)
Height: 12” (30.5 cm)
Depth: 7” (17.8 cm)
Power:
120/240 VAC +/- 10%, 50/60 Hz, 200 W
Operating
Temperature:
32  F to 104  F (0  C to 40  C)
Module Capacity:
Eight (8) VSmart Modules
Four (4) Output Modules (OM4)
Four (4) Line Interface Modules (LIM)
Display:
15” (38.1 cm) color LCD touch screen display GUI
interface
Printer:
External USB, Network Office Printer or (optional)
Internal Printer
Modem:
Three (3) Internal Modems
Standard Alarms:
Optional Alarms:
Alarm Notification:
Buzzer, Light and Acknowledge
External Tank alert (internal relay)
External OM4 module
Email, Fax, SMS
Communication Ports:
Four (4) RS-232 Communication ports
Two (2) RS-485 Communication ports
Two (2) Ethernet ports
Two (2) USB ports
Optional wireless communication between console
and VSmart
Network Connectivity:
DHCP/static addressable RJ-45 Ethernet ports,
supports corporate and local LANs

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2.2 Network Connections
2.2.1 DHCP and Static IP Connections
When a PC logs onto a network, it obtains an Internet Protocol (IP)
address in one of two ways by Dynamic Host Configuration Protocol
(DHCP) (Figure 2-1 Dynamic Host Configuration Protocol (DHCP)) or by
Static IP (Figure 2-2).
DHCP simplifies network administration by automatically assigning IP
addresses rather than requiring configuration by a network administrator.
However, this method of connection may not be the best choice for all
users of the console.
When connecting a device via DHCP, a different IP address may be
assigned each time the device connects to the network. Depending on
network settings, the IP address may also change while the device is
connected as a result of IP lease expiration. Due to its unpredictable
nature, DHCP is recommended for use only on managed networks in
which IP address assignment is carried out against a MAC address;
under these conditions, the SiteSentinel® iSite™ will always be
assigned the same IP address as defined on the server table.
To set up a network connection for the system, navigate to the
Networking section of the System Settings menu and select the
preferred network connection method.
If DHCP is selected , the SiteSentinel® iSite™ will automatically be
assigned an IP address by the network. No additional user input is
required to connect.
If Static IP is selected , users are required to input IP address, gateway
address, and DNS server information for the SiteSentinel® iSite™
system. Once this information is saved, remote connections can be
established by network users.
Figure 2-1 Dynamic Host Configuration Protocol (DHCP)
Figure 2-2 Static IP

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2.2.2 Direct Connections
To establish a direct, wired connection between the SiteSentinel®
iSite™ Console and a PC, a CAT5 crossover cable is required. Follow
these steps to connect:
1. Connect one end of the CAT5 crossover cable to the console’s
Ethernet port, and the other end to an available Ethernet port on
the PC.
2. Wait for an “Automatic Private Address” to be assigned to each
Ethernet connection by its respective system (this occurs
automatically when a DHCP server is unavailable).
3. Navigate to the Networking section of the System Settings
menu on the console and check the DHCP configuration. Then
select “Renew IP” to renew the console’s IP Address (Figure 2-
3).
“Automatic Private Addresses” will always take the form
169.254.xxx.yyy, where “xxx” and “yyy” may be any numeric value
between 1 and 254; specific values will not affect the availability of a
connection.
4. Once established, enter the SiteSentinel® iSite™ console’s
network IP address as displayed on the \System\Network view
into the address bar of the PC’s Web browser. The console’s
screen view will be displayed.
PC network settings may need to be adjusted to establish a direct
connection. A machine that is set up for static IP connections will
either need to be changed to DHCP or have its IP address set one
number higher or lower than the console’s IP address in order to
connect.
Figure 2-3 Direct Connection Screen

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2.3 Peripheral Connections
2.3.1 Petro-Net™ Connections
Wired RS-485 Petro-Net™ connections can be used for communications
among the VSmart Module, the I/O Module, and the SiteSentinel®
iSite™ console. For this type of connection, a single line of twisted-pair
wiring is required. Polarity must always be observed for Petro-Net™
connections.
Twisted-pair wiring is available from OPW as Part No. 12-1029. This
type of wiring can easily be made by twisting together two 18 AWG
gas- and oil-resistant wires (THHN, TFFN or THWN). Use a minimum
of 10 twists per foot.
When connecting via Petro-Net™, the twisted-pair wiring is connected to
positions 1 and 2 of the RS-485-terminal block at each module. Petro-
Net™ connections can be daisy-chained, meaning that modules may be
connected to each other in various combinations as long as one module
in the chain is connected to the console.
Petro-Net™ connections must be made with twisted-pair wiring. The use
of conduit is recommended for protecting Petro-Net™ wires, but is not
required. If conduit is not used, bushings must be installed in the cabinet
knockouts to protect wiring and seal the enclosures. Polarity must be
observed for all Petro-Net™ wiring!
2.3.2 Wireless Connections
Wireless connections can also be used for communications between the
VSmart Module and the SiteSentinel® iSite™ console. For this type of
connection, a wireless modem is connected to the VSmart Module, and
a second modem is wired to the console’s RS-485 port. For best results,
the modems should be within a clear line-of-sight.
Wireless connections are not viable options at all installation sites due
to the presence of interference or line-of-site obstacles. Test kits are
available, but A SITE SURVEY IS STRONGLY RECOMMENDED
BEFORE COMMITTING TO WIRELESS INSTALLATIONS.
2.3.3 Ethernet Connections
Ethernet connections are the final option for establishing
communications between the console and peripheral devices. For this
type of connection, an Ethernet cable is run between devices at a
maximum length of 300 feet (100 m), noting this distance can be
extended through the use of hubs and routers.
If more than 6 feet (1.85 m) of cable is required, the use of conduit to
protect the cable is recommended.
An Ethernet connection can also be established between the console
and a VSmart Module using an existing network. To make this
connection, simply connect the console to one node on the network and
the VSmart Module to another node.

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Figure 2-4 Console Connectivity

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Antenna
Port Ethernet Ports
Modem Ports USB Ports Serial Ports
Figure 2-5 Port Connections

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Figure 2-6 Wiring Connections

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2.4 The VSmart Module
The VSmart Module is where all monitored devices (probes, sensors,
and line-leak detectors) are physically connected to the system through
Intrinsically Safe (IS) barriers. Each VSmart Module houses up to two IS
Barriers, each of which supports up to 64 peripheral devices, for a
maximum of 128 devices per module. The number of devices that can
be connected to each channel of the VSmart Module depends on the
type of device.
Consult the following table for capabilities of the VSmart Module in
connection with various peripheral devices.
VSmart Module Capacity
Maximum Per
Channel
Maximum Per
IS Barrier
Maximum Per
Module
Sensors:
16
64
128
924B Probes:
4
16
32
AST (Flex) / UST (924) /
EECO:
1
2
4
LLD Sensors:
3
12
16
Connecting multiple peripheral devices to each channel of the VSmart
Module is accomplished by making multi-drop (daisy-chain) connections.
Each type of sensor or probe that is connected to a Module is detected
via IntelliSense™ Technology.
Up to eight (8) VSmart Modules can be connected to the SiteSentinel®
iSite™ console via Petro-Net™ (twisted pair), Ethernet, or wireless
connections for a total of 1,024 devices per system.
Figure 2-7 VSmart Module
Conduit is recommended for Petro-Net™ connections between
VSmart Modules and consoles, but it is not required.
Part numbers for the barriers:
20-4344 –12 V Barrier for VSmart 924/924B probes and standard and
multi-drop sensors (Green Label)
20-4345 –24 V Barrier for VSmart Flex probes and EECO probes
(Orange Label)

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Figure 2-8 VSmart Module (Internal)
For site upgrades from an earlier version of a
c
onsole in which the
existing Smart Module will continue to be used for wiring instructions,
please see wiring instructions. The SiteSentinel® iSite™ Smart Module
supports only one device per channel; therefore, the multi-drop
installation method is not a valid installation for that unit.
Maximum Wiring Length is the maximum length of cable to be used to
connect all sensors on an individual channel. The length includes run
of cable from a VSmart Module to each sensor board in the string.
VSmart Module Specifications
Dimensions:
Width: 11.3” (28.7 cm)
Height: 5.6” (14.2 cm)
Depth: 5.8” (14.7 cm)
Standard Voltage Supply:
105 to 265 VAC, 50-60 Hz
Power Consumption:
60 watts maximum
Temperature Range:
-40  F to 158  F (-40°C to 70°C)
Device Capacity:
(See page 18)
Probe Cable Requirement:
Belden #88760 or Alpha #55371
(Shielded 2-wire twisted pair)
Intelligent Sensor Wiring
Requirements:
Belden #88760 or Alpha #55371
(Shielded 2-wire twisted pair)
Non-Intelligent Sensor Wiring
Requirement:
14- to 18-AWG oil-and-gas resistant
(TFFN, THHN or THWN)
Petro-Net™ Communication
Wiring Requirement:
18-AWG, twisted pair, oil-and-gas
resistant
(TFFN, THHN, THWN)
Maximum Petro-Net™ Extension
using RS485:
5,000’ (1.5 km)

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2.4.1 VSmart Module Connections
You must remove the Intrinsically Safe barrier panel to attach wiring.
VSmart power must be off while connecting wires! Connect the probe
wires and cables according to the following chart (see Figure 2-9 VSmart
Module Connections).
Probe Wiring
Probe
Wire
Probe Cable
(Belden #88760, #8760 or Alpha #55371)
VSmart Module
“Device”
Terminal
Blue
Red
PWR (power)
Brown
Black
SIG (signal)
Black
Shield
GND (ground)
AST Probe Wiring
Probe
Wire
Probe Cable
(Belden #88760, #8760 or Alpha #55371)
VSmart Module
“Device”
Terminal
Red
Red
PWR (power)
White
Black
GND (ground)
Shield
Shield
GND (ground)
2.4.2 VSmart & I/O Module AC Wiring
1. Pull two AC power wires from the circuit breaker to each
module; you may “daisy chain” the wires from module to
module, not to exceed the circuit-breaker rating (see Figure 2-9).
2. Connect the live and neutral power wires to the appropriate
terminals in each module.
3. Make sure the modules are set for the correct voltages (115 or
230 VAC). For VSmart Modules, check the decal near the
terminal block. For I/O Modules, check the “line voltage selector”
switch on the circuit board.
4. Determine the grounding method. There are two versions of the
VSmart Module: one has a single-ground terminal; the other has
a second-ground terminal for the I.S. barrier. All ground
connections must be done with 12 AWG wire.
5. Ideally, all AC power should be in the same phase for best
operation.
Figure 2-9 VSmart Module Connections