Xylem YSI IOEM Setup guide

YSI Incorporated
IOEM (Input/Output) & REM (Relay)
Expansion Modules
Safety and Installation Guide
AquaManger conguration quick start guides included
at chapter 4

IOEM/REM Safey and Installation Guide
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IOEM/REM Safey and Installation Guide
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Item # 606524
Rev B
Drawing # 606524
April 22, 2015
Copyright
©2015 YSI Incorporated.
Manufacturer:
YSI, Incorporated
A Xylem Brand
1700/1725 Brannum Lane
Yellow Springs, OH 45387 USA
937-767-7241
www.ysi.com
All trademarks herein are
Registered to YSI Incorporated
unless otherwise noted.
Microsoft and Windows are registered trademarks of the Microsoft
Corporation in the United States and other countries.
Pentium is a registered trademark of Intel Corporation.
Document information Table of Contents
Table of Contents
1 Introduction............................................................ 7
Introduction ..........................................................................................8
IOEM and REM features................................................................8
IOEM product description ..............................................................10
REM product description................................................................10
Preview of User Manual.......................................................................11
Product Specications .........................................................................12
Environmental Specications.........................................................12
IOEM Input/Output System Specications .....................................12
REM Output Specications ............................................................13
Component and System (Non Input) Specications ......................13
2 Safety ....................................................................... 15
THIS IS IMPORTANT ..........................................................................16
Warnings and Cautions..................................................................16
Warnings ..................................................................................17
Health and Safety (calibration solutions & desiccant)....................19
Cautions ...................................................................................20
3 Installation & Wiring .............................................. 23
Hardware Installation ...........................................................................24
Step 1 Install IOEM and REM ........................................................25
Location Considerations...........................................................25
Mount the IOEM and REM .......................................................26
Surface Mount ....................................................................26
Rail Mount ..........................................................................27
Install the Weather Shield...................................................27
Wiring Information..........................................................................28
PCBs ........................................................................................28
IOEM and REM Bulkhead Compression Fittings .....................30
Accessing the I/O and REM Board ..........................................30
Open Front Panel to Access I/O and REM Board ....................32
Close Front Panel ....................................................................32
Step 2 Ground IOEM and REM .....................................................33
Directions to Ground IOEM and REM ......................................33
Step 3 Wire Power .........................................................................35
Wire AC Power.........................................................................35
Directions to Wire AC Power ..............................................35
Wire DC Power and backup power ..........................................38
Directions to Wire DC Power/DC Backup Power ...............38
Step 4 Wire REM Relay Outputs ...................................................40
Directions to Wire Relay Outputs .............................................41
Wiring a Contactor ...................................................................42

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Table of Contents
Step 5 Wire I/Os on IOEM .............................................................43
IOEM input conguration..........................................................43
Directions to Wire (non temperature) IOEM Inputs .................43
Directions to wire temperature inputs.......................................46
Directions to wire 4/20mA Outputs ..........................................47
Step 6 Wire Network ......................................................................48
Directions to Wire Network.......................................................49
Congure dip switches for slave devices .................................55
Step 7 Connect Communication Cable for Firmware Update ........58
Directions to Wire Direct PC Connection for rmware update .60
Lightning and Surge Protection......................................................65
Sealants, Desiccants, and Securing IOEM and REM ....................66
4 Conguring IOEM and REM Channels................. 69
IOEM and REM Conguration and Monitoring ....................................70
IOEM/REM terminology .................................................................71
Quick Start - IOEM Conguration ..................................................72
Use AquaManager to congure IOEM channel mode..............73
Congure 5X00 E-Aux system for IOEM input ...................74
Congure 5X00 system for IOEM 4/20mA output ..............76
Congure 5X00 system for IOEM PID output control device
77
Reset IOEM to factory ........................................................79
Quick Start - REM Conguration....................................................80
Use AquaManager to congure REM.................................80
Congure REM relay(s) to 5X00 system(s) ........................80
Reset REM to factory .........................................................81
Conrm latest AquaManager version is installed on PC ..........81
Appendices............................................................... 83
Appendix 1 Unpacking and Inspection ................................................84
Appendix 2 Troubleshooting ................................................................85
Status leds ...............................................................................85
Relay (Outputs) Troubleshooting .............................................85
Network Troubleshooting .........................................................86
Firmware Updater Troubleshooting..........................................86
AquaManager Troubleshooting ................................................87
Appendix 3 Declaration of Conformity .................................................88
Appendix 4 Alpha “A” curve .................................................................91
Appendix 5 Parts and Accessories ......................................................92
Appendix 6 Warranty ...........................................................................93
Table of Contents
Appendix 7 Contact Us ........................................................................94
Ordering and Technical Support ....................................................94
Service Information ........................................................................94
Appendix 8 Recycling ..........................................................................95
Recycling .......................................................................................95
Battery Disposal.............................................................................95
Index .............................................................................. 96

IOEM/REM Safey and Installation Guide
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1 Introduction
-IOEM Product Description
-REM Product Description
-Product features
-Using this Manual
-Specications
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Introduction
Thank you for purchasing a YSI IOEM and/or REM Expansion Module(s). The
IOEM-4, IOEM-8 and REM are networkable instruments that communicate with
YSI 5X00 family of programmable aquatic control and alarming instruments. (The
YSI 5X00 family of instruments include 5200A, 5400, 5500D-01, 5500D-02 and
5500D-04 instruments.) IOEM and REM expansion modules provide additional
inputs and outputs for 5X00 instruments existing on an RS485 network. Peripheral
devices wired and congured to IOEM and REM expansion modules add exibility
and capability to a network. Congure IOEM and REM expansion modules as
needed for your application.
IOEM and REM instruments do not have a user interface, meaning no congura-
tion can be done at the instrument. Use AquaManager® PC software program to
congure IOEM and REM instruments.
Please see IOEM/REM terminology - page 71 for terms used throughout this
manual in describing IOEM/REM nstrument features and functionality.
IOEM and REM features
IOEM and REM expansion modules share many common features. e common
features are listed below. (IOEM & REM unique features are provided following
the common features listed below.)
A 5X00 instrument is required and must be congured as the master on the
RS485 network;
• NEMA-4X / IP65 enclosure;
• universal AC power;
• optional DC 12 VDC power, including battery backup;
• *AquaManager® PC software is required and serves as a management
tool using either a direct (RS232) or TCP/IP connection where a 5X00
instrument is congured as a master on the RS485 network;
•1 32-bit processor;
• networking capability - With a 5X00 instrument congured as the master,
an additional 31 slave IOEM, REM and/or 5X00 instruments can be added
to the network. The network uses RS485 protocol;
• eld upgradable rmware, including RS232 port for rmware updating;
• power and communication status LEDs see Troubleshooting; Status
LED, page 85.
Introduction
*AquaManager adds the ability to:
•congure IOEM and REM channels to 5X00 networked instruments;
•congure, graph and map IOEM systems and REM channels;
•log and view IOEM channel system data and REM events;
In addition to the common features listed above, IOEM functionality includes:
• 4 (IOEM-4) or 8 (IOEM-8) 8 selectable I/Os; I/Os can be congured
as digital, analog (0-1VDC, 0-5VDC, 4-20/mA) or temperature inputs;
• 4 (IOEM-4) or 8 (IOEM8) selectable I/Os can be congured as 5X00
instrument system 4/20mA outputs;
In addition to the common features listed above, REM features include:
•four (4) onboard output relays rated at 250VAC@10AMPs;
See IOEM and REM Product Specications, starting on page 12, for complete
instrument specications.
Use of this equipment for something other than the intended use of the instru-
ment is prohibited.
Figure 1.1 shows an REM front panel and enclosure. (IOEM front panel and
enclosure are identical.) Compression ttings located on the bottom of the en-
closure provide liquid-tight connections for wiring peripheral devices and IOEM
and REM devices and components.
Figure 1.1
Introduction

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IOEM/REM Safey and Installation Guide
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IOEM product description
IOEM instruments are congured as slave devices on an RS485 network. IOEM
channels (I/Os) are used by 5X00 systems as additional I/Os on the network. IOEM
instruments have either 4 I/O channels (IOEM-4) or 8 I/O channels (IOEM-8).
AquaManager (PC software) is required to congure an IOEM mode on a
network. IOEM channels can be congured in the following three (3) ways:
1. As an Input - congure IOEM channel as a digital, analog (0-1V, 0-5V,
4/20mA) and/or temperature input. ese inputs are congured, monitored
and controlled using a 5X00 instrument E-Aux system. See IOEM input chan-
nel/eaux conguration-page 72.
2. As a 4/20mA PID output control device (such as a valve) to control any 5X00
instrument pH, ORP, temperature, Conductivity, DO, non digital aux and E-Aux
system. 5X00 system must be congured in PID 4/20mA control mode. See
page “Congure 5X00 system for IOEM PID output control device” on page 77
3. As an output, converting a 5X00 system input to a 4/20mA output signal to
be used by some external device such as a PLC- page 76- Convert any non
digital 5X00 sytem [pH, ORP (mv), temperature (F/C), Conductivity, (mS/μS),
DO (%sat/mg/l), aux and E-Aux] to a 4/20mA output signal.
IOEM use case input-5X00 instruments have 8 eaux systems. 5X00 instrument eaux
systems are used to allow peripheral input devices (digital, analog and temperature)
to be monitored, controlled and alarmed across a network. An example - a 4/20mA
pH probe is congured and wired to an IOEM instrument, the 4/20mA ph probe
input is congured at a 5X00 eaux system. The 4/20mA ph system can now be
monitored, controlled and alarmed over the network. E-Aux “virtual systems” can
be congured in a variety of ways that allow exibility to the user.
IOEM use case 4/20mA output - a 5200A instrument’s pH value is sent as a 4/20mA
signal to a third party device such as a PLC. The 4/20mA signal can then be used
by the third party device for additional processing.
notes:
- One IOEM input can be assigned to multiple 5X00 E-Aux systems.
- One IOEM 4/20mA output can be assigned to only one 5X00 system.
REM product description
REM instruments are congured as slave devices on an RS485 network. REM
channels (outputs) are used by 5X00 systems as additional relay outputs on the
network. REM instruments have 4 relay outputs that are used to connect peripheral
devices . These peripheral devices are used to control and/or alarm networked 5X00
instrument systems.
Introduction
REM use case output-The master 5X00 instrument receives information that a slave
5X00 DO system on the network is in DO low control range. The DO low control
relay for this 5X00 slave is congured to relay 2 on a networked REM. The master
sends a command to the networked REM that relay 2 needs to energize to control
slave 5X00’s low DO value. Slave REM instrument, relay 2, energizes until the
master receives a message from the slave 5X00 DO system value is ≥ to that DO
system’s setpoint.
note:
- Multiple 5X00 systems can be assigned to the same relays.
Preview of User Manual
This manual includes safety, installation, wiring and maintenance information for
IOEM and REM instruments. This manual is intended to be used with 5X00
instrument manuals and AquaManager PC program help system for IOEM
and REM conguration.
Read Chapter 2 “Safety Information,” starting on page 16, before installing or
conguring IOEM and REM systems.
Chapter 3 “Installation,” starting on page 24, provides information on how to
install the IOEM and REM components, and peripheral devices. Only qualied
people should install IOEM and REM expansion modules. Do not attempt to install
or congure these devices if you are not qualied to do so. If information is not
clear, DO NOT PROCEED until clarication can be obtained. All wiring involving
connections to main power must be performed by a qualied licensed electrician
and must conform to all locally applicable electrical codes.
Chapter 4 “Using AquaManager to congure IOEM and REM Channels,” starting
on page 70, provides quick start guides on how to use AquaManager to congure
IOEM and REM I/O channels to 5X00 instrument systems. 5X00 user manuals con-
tain detailed information on 5X00 instrument menu structure and how to properly
congure IOEM and REM instruments to 5X00 systems.
“Notes” are presented at the end of certain manual sections to provide additional
information to help clarify IOEM and REM operation and features.
Appendices include information on Unpacking & Inspection, Troubleshooting,
Declaration of Conformity, Alpha “A” curve (a reference for temperature sensors)
Parts and Accessories, Warranty, Contact Us and Recycling information.
An index is provided starting on page 96.
Introduction

IOEM/REM Safey and Installation Guide
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IOEM/REM Safey and Installation Guide
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Product Specications
To ensure accurate and reliable performance, operate IOEM and REM expansion
modules according to specications provided in the following tables. Damage and/
or incorrect operation could result if these specications are not followed and would
not be covered under manufacturer’s warranty, see page 93.
Use of this equipment for something other than the intended use of the instrument
is prohibited.
Product specications are subject to change without notice. Visit www.ysi.com to
view the most recent product specications.
Environmental Specications
Environmental Category Operating Range
Temperature 0 to 45˚C (32 to 113˚F)
Enclosure Rating NEMA 4X (direct exposure to outside conditions),
IP65
Compression Fitting Rating IP 68/NEMA 6 (liquid tight)
Electrical Safety ETL Listed (Product conforms to UL 61010-1 3rd
edition and CAN/CSA C22.2#61010-1 3rd edition)*
EMC/ESD: Complies with FCC Part 15 (USA),
ICES-003 (Canada), EMC Directive 2004/108/EC
(European Union and Australia/New Zealand)*
Other RoHS Directive 2011/65/EU, WEEE 2002/96/EC,
FCC*
*See Appendix 3 Declaration of Conformity - page 88.
IOEM Input/Output System Specications
Input type There are 4 (IOEM-4) or 8 (IOEM-8) I/O channels that allow digital,
analog (0-1.0VDC, 0-5.0VDC, or 4-20mA) and temperature input
conguration. These inputs are congured to a 5X00 instrument’s
r E-Aux systems allowing for additional instrument inputs. 4-20
mA output channels can be assigned to temperature, pH, ORP,
Conductivity or to Aux and E-Aux input systems.
Each I/O circuit is fully isolated with its own ground.
Digital Range Digital input
n/a dry contact open/close
Introduction
Analog input ranges Accuracy Resolution/Other
0-1.0 VDC 0-1.0VDC: ± 3% ± 10 mV user selectable (0), (0 .0), or
(0.00)
0-5.0 VDC 0-5.0VDC: ± 3% ±15 mV user selectable (0), (0 .0), or
(0.00)
4-20mA 4-20 mA: ± 3% ±100μA user selectable (0), (0 .0), or
(0.00)/
4/20mA I/O circuits are able to
source current as well as sink
current.
Temperature
Range
Sensor type
10,000 ohm @ 25°C
thermistor
Accuracy Resolution
0 to 45°C (32
to113°F)
± 0.2°C 0.1°C
Aux Output Type Accuracy
4/20mA 4-20 mA: ± 3% ±100μA
REM Output Specications
Outputs 4 on-board relays 250VAC@ 10AMPs
switching capacity; type:
SPDT.
Component and System (Non Input) Specications
Hardware
System System Feature Specication
diagnostic troubleshooting
LEDs
Introduction

IOEM/REM Safey and Installation Guide
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Power: There are two IOEM and REM power options. The DC version can only be
powered by DC power. The AC version can be powered by AC or DC power.
Power for DC
Version:
external 12VDC power
source
9-16.5VDC; 2A
Power for AC
Version:
internal AC switching power
supply
100-240VAC; 50-60Hz; 0.5 Amp
Both AC and
DC versions:
lithium battery (for real time
clock)
2032 lithium ion
Electronics ARM7 embedded microprocessor
Firmware
Feature Specication
Flash Memory Firmware eld upgradable with
local PC connection
Data ltering reads 2-3 times per second and
readings are averaged
Communication
Feature Specication
RS232 required for rmware
upgrading
up to 100 ft (30m)
Instrument to Instrument Networking
Feature Specication
With a 5X00 instrument con-
gured as the master, an ad-
ditional 31 slave IOEM, REM
and/or 5X00 instruments can
be added to the network.
e network uses RS485 protocol.
RS485 up to 4000 ft (1220m)
entire network distance
AquaManager
Feature Other PC Requirements
Runs on Windows 2000/
XP/Vista/Windows 7 & 8
Windows operating systems
32-bit and 64-bit
VGA display card
CD-ROM Drive
Total RAM Installed: 16MB or
greater
100 MB free hard-disk space
Introduction
2 Safety
-IMPORTANT safety information.
Read this chapter before installing IOEM and REM compo-
nents and peripheral devices.

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IOEM/REM Safey and Installation Guide
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THIS IS IMPORTANT
Take time to be safe when working on electrical circuits and equipment. It could
save your life. Avoid unsafe acts and conditions. Do not operate or install the IOEM
and REM before reading this chapter. Installing the IOEM and REM involves wir-
ing high voltage equipment. Follow all provided safety information. Installation
must be performed by someone who understands the dangers of, and is qualied
to, wire electrical devices. If information or instructions are not clear, DO NOT
PROCEED until clarication can be obtained.
ALWAYS:
Follow basic safety rules when working with or near high voltage circuits. The
IOEM and REM is a high voltage instrument using 110v. Peripheral devices
may also be high voltage devices.
Consider the result of each act. Keep away from live circuits. Do not change
parts or make adjustments inside the equipment with high voltages on.
Do not service alone.
Do not tamper with interlocks. Safety devices such as interlocks, overload
relays, and fuses should never be altered or disconnected except for replace-
ment. Safety protection devices should never be changed or modied without
a clear understanding of what effect the modication will have on the system.
Do not ground yourself.
Do not energize equipment if there is any evidence of water leakage.
Warnings and Cautions
Safety information is presented in this manual in one of two ways:
- WARNING - RISK OF ELECTRIC SHOCK This symbol identies
installation and operation procedures that can result in personal injury
or death if safety information is not followed.
- AVERTISSEMENT – RISQUE DE CHOC ÉLECTRIQUE. Ce
symbole identie les procédures d’installation et d’opération pouvant
entraîner des blessures ou la mort si les consignes de sécurité ne sont
pas suivies.
Safety
- CAUTIONS are used when personal injury or damage to equipment
can result if safety information is not followed
- .Les notices ATTENTION sont utilisées lorsque des blessures ou des
dommages à l’équipement pourraient être causés si les consignes de
sécurité n’étaient pas suivies.
These symbols ( ) ( ) appear in the left margin of the page to highlight
safety information as it applies to a particular installation or operation step.
A complete list of all safety cautions is provided below. All warnings are provided
in English and French.
Install and use the IOEM and REM only in accordance with information docu-
mented in this manual.
Warnings
WARNINGS are used when personal injury or death can result if safety informa-
tion is not followed.
Les AVERTISSEMENTS sont utilisés lorsque des blessures graves ou mortelles
pourraient être causées si les consignes de sécurité n’étaient pas suivies.
WARNING: All wiring that involves connections to mains power must be
performed by a qualied licensed electrician, and must conform to all locally
applicable electrical codes.
AVERTISSEMENT : tous les câblages comportant une connexion à l’alimentation
secteur doivent être réalisés par un électricien qualié et doivent être conformes
aux codes électriques applicables.
WARNING: Do not make connections while power is applied. Turn off power
and assure power “Lockout” before installing or servicing to avoid contact with
electrically powered circuits. This includes working on devices connected to
the relay outputs and auxiliary input systems. Disconnect external power to
the IOEM and REM before connecting or disconnecting components and/
or peripheral devices.
AVERTISSEMENT: n’effectuez aucune connexion alors que le circuit est sous
tension. Coupez l’alimentation et assurez l’interdiction du courant avant toute
installation ou tâche d’entretien an d’éviter d’entrer en contact avec des circuits
sous tension. Cela comprend tout travail sur des appareils connectés à des sor-
Safety

IOEM/REM Safey and Installation Guide
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IOEM/REM Safey and Installation Guide
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ties de relais et des systèmes d’entrée auxiliaires. Déconnectez l’alimentation
externe du modèle IOEM and REM avant de connecter ou de déconnecter
des composants et/ou des appareils périphériques.
WARNING: A switch or circuit breaker shall be included in the building where
the IOEM and REM is installed. The disconnecting device should be in close
proximity to the equipment and within easy reach of the operator. The discon-
necting device shall be marked for the equipment.
AVERTISSEMENT: un commutateur ou disjoncteur doit être installé dans le
bâtiment où le modèle IOEM and REM est installé. Le dispositif de déconnexion
doit se trouver à proximité de l’équipement et à portée de l’opérateur. Le dispositif
de déconnexion doit indiquer l’équipement auquel il se rapporte.
WARNING: The covers of fuse boxes and junction boxes should be kept securely
closed except when servicing.
AVERTISSEMENT: le couvercle des boîtes à fusibles et des boîtes de dérivation
doit être maintenu fermé sauf lors des tâches d’entretien
WARNING: Electric sparks and chemical exposure are potential dangers when
working with batteries. Use necessary precautions and follow all manufacturer’s
directions.
AVERTISSEMENT: l’exposition à des étincelles ou produits chimiques est un
danger potentiel inhérent à tout travail sur des batteries. Observez les précautions
nécessaires et suivez les consignes du fabricant.
WARNING: Ground the IOEM and REM. See Ground IOEM and REM - page
31. The sensitivity and stability of the IOEM and REM will be impaired if
the IOEM and REM is not grounded. To avoid possible electrical shock or dam-
age to the equipment, connect earth ground to the IOEM and REM I/O board.
In addition to grounding the IOEM and REM, all tanks should be electrically
grounded using a ground probe.
AVERTISSEMENT: mettez le modèle IOEM and REM à la terre. Voir Mise
à la terre du modèle IOEM and REM. La sensibilité et la stabilité du modèle
IOEM and REM seront affectées s’il n’est pas mis à la terre. Pour éviter toute
possibilité de choc électrique ou d’endommagement de l’équipement, connectez
le l de terre à la carte d’E/S du modèle IOEM and REM. En plus de la mise à la
terre du modèle IOEM and REM, tous les réservoirs doivent être mis à la terre.
Safety
WARNING: Do not overload relays. Verify that the surge current at startup
does not exceed the relay load ratings. Be familiar with all safety information
regarding installing and servicing peripheral devices.
AVERTISSEMENT: ne surchargez pas les relais. Vériez que la surtension
de démarrage ne dépasse pas la capacité de charge nominale du relais. Prenez
connaissance de toutes les consignes de sécurité concernant l’installation et
l’entretien des appareils périphériques
WARNING: The IOEM and REM is not fused. Fuses used in any peripheral
equipment should be removed and replaced only after the circuit has been de-
energized. When a fuse blows, it should be replaced only with a fuse of the same
current and voltage ratings. Circuits should be carefully checked before fuse
replacement. A burned out fuse is often the result of circuit fault.
AVERTISSEMENT: le modèle IOEM and REM ne contient pas de fusible. Les
fusibles utilisés par les équipements périphériques doivent être retirés et rem-
placés uniquement après que le circuit a été mis hors tension. Lorsqu’un fusible
est grillé, il doit être remplacé uniquement par un fusible d’une tension et d’un
ampérage nominaux identiques. Les circuits doivent être soigneusement vériés
avant le remplacement d’un fusible. Un fusible grillé est souvent le résultat d’une
défaillance de circuit
WARNING: Do not apply power to the IOEM and REM until all electrical con-
nections are veried and secured.
AVERTISSEMENT: ne mettez pas le modèle IOEM and REM sous tension tant
que les connexions électriques n’ont pas été vériées et sécurisées.
WARNING. Disconnect external power before wiring. Do not run high and
low voltage wires through the same conduit or bulkhead tting. Protect internal
electronics. See “Sealants, Desiccants, and Securing Expansion Modules” in
5X00 User’s Manual
AVERTISSEMENT: Déconnectez l’alimentation externe avant d’effectuer le
câblage. Ne pas acheminer les câblages basse tension et haute tension dans le
même conduit ou le même raccord de traversée de cloison. Protéger les appareils
électroniques internes. Voir la section « Scellants, dessiccants et xation des
modules d’expansion » dans le guide d’utilisation du modèle 5X00
WARNING: The equipment should be positioned so that the power cord can
easily be disconnected.
Safety

IOEM/REM Safey and Installation Guide
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IOEM/REM Safey and Installation Guide
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AVERTISSEMENT: l’équipement devrait être placé de façon à ce que le cordon
puisse être facile à débrancher.
Cautions
CAUTIONS are used when personal injury or damage to equipment can result if
safety information is not followed.
Les notices ATTENTION sont utilisées lorsque des blessures ou des dommages à
l’équipement pourraient être causés si les consignes de sécurité n’étaient pas suivies.
CAUTION: The IOEM and REM utilizes sensitive solid state devices that can
be damaged by static shock. Installers must observe accepted ESD (Electro-
Static Discharge) procedures while connecting wires to the IOEM and REM
control board.
ATTENTION: les modèles d’IOEM (module d’expansion d’entré et de sortie)
et de REM (module d’expansion de relais) utilisent des appareils transistorisés
sensibles pouvant être endommagés par des décharges d’électricité statique.
Les installateurs doivent observer les procédures de protection acceptées contre
les décharges électrostatiques lors du câblage à la carte de l’IOEM et du REM.
CAUTION: Sensors are powered by the IOEM and REM instrument and use
a “oating” ground reference. This requires that the probe not be individually
grounded.
ATTENTION: Les capteurs sont alimentés par les instruments de l’IOEM (module
d’expansion d’entré et de sortie) et du REM (module d’expansion de relais) et
sont utilisés comme référence « ottante » au sol. Cela exige que les capteurs
ne soient pas mis à la terre individuellement..
CAUTION: Power supply voltage above 16.5 VDC may permanently damage
the IOEM and REM. See Wire DC Power - page 38.
ATTENTION: Toute alimentation à une tension supérieure à 16,5 V c.c. risque
d’endommager de manière permanente l’IOEM (module d’expansion d’entré et
de sortie) et le REM (module d’expansion de relais). Voir la section « Alimen-
tation c.c. des câbles » à la page “Directions to Wire DC Power/DC Backup
Power” on page 38.
Safety
CAUTION: Surge protectors are strongly recommended to protect from sec-
ondary surges and lightning. Surge suppression devices should be located on
the AC line supplying power to the IOEM and REM. See Lightning and Surge
Protection - page 65.
ATTENTION: Il est fortement recommandé d’utiliser des limiteurs de surtension
pour protéger l’installation contre les surcharges secondaires et les éclairs. Les
limiteurs de surtension doivent être placés sur le câblage c.a. de l’alimentation
à l’IOEM (module d’expansion d’entré et de sortie) et au REM (module
d’expansion de relais). Voir la section « Protection contre les surcharges et les
éclairs » à la page “Lightning and Surge Protection” on page 65.
CAUTION: It is essential that all low voltage wiring, including sensor wiring
be run in separate cable or conduit from high voltage wiring.
ATTENTION: Il est essentiel que le câblage basse tension, y compris le câblage du
capteur, soit acheminé par un câble ou un conduit séparé du câblage haute tension.
Safety

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3 Installation & Wiring
-Installing & wiring IOEM and REM, components, and
peripheral devices.

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IOEM/REM Safey and Installation Guide
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Hardware Installation
Correctly install IOEM and REM system components and peripheral devices to
ensure accurate data collection and reliable operation. First, determine what monitor,
control, alarm and output functions the IOEM and REM expansion modules will
perform. Because system components are wired to IOEM and REM instruments,
it is important to determine where and how components will be installed and con-
gured. Preparing a system schematic (gure 3.1) is helpful.
Figure 3.1
Hardware installation steps (not all steps required for all applications):
Step 1 - install IOEM and REM instrument
Step 2 - ground IOEM and REM
Step 3 - wire power
Step 4 - wire relays - REM only
Step 5 - wire I/Os - IOEM only
Installation and Wiring
Step 6 - wire a network of 2 - 32 instruments, including slave address dip switch
conguration
Step 7 - wire communications hardware
See Chapter 4 “Conguring IOEM and REM Channels,” starting on page 70, for
directions on conguring IOEM and REM expansion modules using AquaManager
PC software.
Tools and supplies needed for hardware installation:
• Phillips-head screwdriver to remove IOEM and REM front panel to ac-
cess board assembly
• necessary tools for cutting mounting holes in mounting brackets (rail
mount)
• electric drill and bits for mounting IOEM and REM (panel or rail) and
for drilling rubber grommets in bulkhead ttings
• small at-head screwdriver to terminate wires on the IOEM and REM
board’s pluggable terminal strips
• wrench to tighten the bulkhead ttings following system component wiring
• wire strippers
• contactors may be required for relay wiring; see contactor wiring - page
42
Optional accessories for hardware installation:
• surface mount hardware (included)
• rail mount hardware
• weather shield hardware
• cabling for network wiring
• wiring not supplied with components and/or peripheral devices
Step 1 Install IOEM and REM
Select a mounting location and method to mount the IOEM and REM.
Location Considerations
The IOEM and REM must be located:
• above any level where water damage can occur
• away from extremely high or low temperature sources
• away from vibrating surfaces
• at least two (2) feet (.7 m) from any high voltage conduit
• away from electromagnetic, radio, AC motor, transformer, or antennas
• so the front panel can be fully opened and serviced
• so system component wires are run as specied in this manual and ac-
cording to all local applicable electrical codes.
Installation and Wiring

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27
WARNING: The equipment should be positioned so that the power cord can
easily be disconnected.
AVERTISSEMENT: l’équipement devrait être placé de façon à ce que le cordon
puisse être facile à débrancher.
Mount the IOEM and REM
Select surface or rail mount option. Install the weather shield for outdoor instal-
lations.
Surface Mount
Mount IOEM and REM to any at surface using mounting brackets. Mounting
brackets and screws are included with IOEM and REM devices.
1. Fasten the mounting brackets to the back of the IOEM and REM with the
mounting screws - gure 3.2.
2. Tighten the screws, securing the brackets to the back of the IOEM and
REM enclosure.
3. Fasten the IOEM and REM mounting brackets to the mounting surface
with the mounting screws provided - gure 3.2. Make sure screws ad-
equately secure IOEM and REM to surface.
4. Tighten the screws, securing the IOEM and REM to the surface.
Figure 3.2
Installation and Wiring
Rail Mount
Mount IOEM and REM to handrail or pipe 1 to 1.5” (2.5 to 3.8cm) in diameter.
The rail mount kit (YSI model number 6509) includes u-bolts, a pre-drilled metal
plate, washers, and nuts.
1. Drill holes in the mounting brackets to t the u-bolts. Use the pre-drilled
metal plate as a template.
2. Fasten the mounting brackets to the back of the IOEM and REM with the
mounting screws as shown in gure 3.2.
3. Tighten the screws, securing the brackets to the IOEM and REM.
4. Place the u-bolts around the rail securing the IOEM and REM to the pipe
or rail by feeding through the pre-drilled holes on the mounting brackets
as shown in gure 3.3.
5. Secure the metal plate over the u-bolts and around the rail or pipe using
washers and nuts provided.
6. Tighten the screws, securing the IOEM and REM to the rail.
Figure 3.3
Install the Weather Shield
Install the weather shield for outdoor installations. The weather shield can be used
with either a surface or a rail mount. The weather shield kit includes a weather
shield, u-bolts, pre-drilled metal plate, washers, and nuts.
Installation and Wiring

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IOEM/REM Safey and Installation Guide
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1. First complete steps 1-2 under Surface Mount or steps 1-3 under Rail
Mount depending on the type of installation. Note: You may need to
modify the pre-drilled holes in the weather shield depending on the
mounting location.
2. At step 3 (surface mount) or step 4 (rail mount), attach the weather shield
to the surface or rail with the metal plate installed to secure the weather
shield to the surface or rail. Figure 3.4 shows the weather shield installed
for a rail mounted IOEM and REM.
3. Tighten the screws, securing the weather shield.
Figure 3.4
Wiring Information
System components must be wired correctly to ensure reliable performance and
accurate functionality. Directions are provided in this section for wiring all IOEM
and REM components and peripheral devices. Proper Earth Ground is required to
ensure safe operation-see Wire and Ground IOEM and REM, page 33. Power
mains to be fed by a Listed/Certied 15/20Amp Breaker for SC protection.
PCBs
There is a single pcb inside IOEM-4 and REM enclosures. IOEM-8 expansion
modules have an additional pcb providing for an additional 4 I/O channels. All
components including power, network, RS232 communication, inputs/outputs
(IOEM) and relay outputs (REM) are wired to one board. There is a metal plate
covering the PCB(s). The metal plate is labeled with letters. These letters correspond
to a label, afxed to the inside of the front panel which identies wire termination
Installation and Wiring
locations. IOEM and REM ground wires (also called drain wires) are terminated
to the metal plate as well.
The front panel must be open when wiring system components, peripheral devices
and RS232 communication cabling. See Accessing the I/O and REM Board - page
32. It is recommended that some system conguration and testing be done in
conjunction with hardware installation. is ensures that peripheral devices are
wired correctly. Refer to Chapter 4, “Conguring IOEM and REM Systems,” page
70, for references to 5X00 instrument user manuals for proper conguration of
all IOEM and REM instrument systems.
WARNING: Follow all safety information and local electrical codes when
wiring IOEM and REM system components and peripheral devices. Proper
wire gauge should be determined based on voltages and wire/cable length. Incor-
rect wiring can result in damage to you or to the equipment. Improper wiring
can also result in ground loops.
AVERTISSEMENT : suivez toutes les consignes de sécurité et les codes élec-
triques en vigueur lors du câblage des composants du système IOEM and REM
et des appareils périphériques. Le calibre correct des câbles doit être déterminé
en fonction des tensions et de la longueur des câbles/ls. Un câblage incorrect
peut entraîner des blessures et endommager l’équipement. Un câblage incorrect
peut également entraîner des boucles de mise à la terre.
Installation and Wiring

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31
IOEM and REM Bulkhead Compression Fittings
Eight bulkhead compression ttings [4@ 3/8”(.9525cm), 2 @ 3/4” (1.905cm), and
2@ 1/2” (1.27cm)] located on the bottom of IOEM and REM enclosures provide
watertight connections for system component wiring-gure 3.5 Rubber grommets
must be “pushed out” of the compression tting housing and drilled for wiring in-
stallation. The drill bit diameter should be slightly smaller than the wire diameter
so that a watertight seal can be made. Rubber grommets can be frozen (put in a
freezer for 1 hour) and then easily drilled to the required diameter. Some pre-drilled
rubber grommets are supplied with IOEM and REM. devices.
Figure 3.5
Accessing the I/O and REM Board
The I/O board is accessible when the IOEM and REM front panel is open. The let-
ters on the metal plate identify wire termination locations and pluggable terminal
strip locations on the PCB board. Letters on the metal plate correspond to the wiring
diagram located on the inside of the front panel.
Installation and Wiring
IOEM wiring diagram located inside front panel
REM wiring diagram located inside front panel
Installation and Wiring

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IOEM/REM Safey and Installation Guide
33
Open Front Panel to Access I/O and REM Board
WARNING: Disconnect external power to the unit before doing any wiring.
AVERTISSEMENT: déconnectez l’alimentation externe de l’unité avant
d’ouvrir le panneau avant.
1. Loosen the 4 mounting screws connecting the front panel to the back
enclosure. Captive screws remain in front panel after loosening.
2. Unhinge the front panel by lifting the latch up so the hinge is released
from the front panel. The rubber gasket seated in the front panel should
remain in the front panel lid.
Close Front Panel
1. Verify all installed components and peripheral equipment have secure
connections and that there are no bare wires that could cause a short
inside the enclosure.
2. Tighten bulkhead ttings after connecting all wiring. (Hand tighten t-
tings around rubber grommet. Tighten bulkhead ttings into enclosure
with wrench being careful to not overtighten.)
3. Follow information in Sealants, Desiccants and Securing the Monitor
Section - page 66 to safeguard against damage to internal electronic
components.
4. Make certain the gasket in the front panel lid is in place and not twisted
or damaged.
5. Tighten mounting screws, making sure not to cross thread. The screws are
stainless steel, and the receiving threads are brass. Do not over-tighten!
CAUTION: The IOEM and REM utilizes sensitive solid state devices that can
be damaged by static shock. Installers must observe accepted ESD (Electro-
Static Discharge) procedures while connecting wires to the IOEM and REM
control board.
ATTENTION : les modèles d’IOEM (module d’expansion d’entré et de sortie)
et de REM (module d’expansion de relais) utilisent des appareils transistorisés
sensibles pouvant être endommagés par des décharges d’électricité statique.
Les installateurs doivent observer les procédures de protection acceptées contre
les décharges électrostatiques lors du câblage à la carte de l’IOEM et du REM.
Installation and Wiring
Step 2 Ground IOEM and REM
WARNING: Ground the IOEM and REM to avoid possible electrical shock or
damage to the equipment.
AVERTISSEMENT : mettez le modèle IOEM and REM à la terre an d’éviter
tout risque de choc électrique ou d’endommagement de l’équipement.
Ground the IOEM at location F on the metal plate. Ground the REM at location
G on the metal plate. Other IOEM and REM system components can be grounded
at these same locations. Titanium ground rods can also be used to ground peripheral
equipment.
In addition to grounding the IOEM and REM, all tanks should be electrically
grounded via a ground probe.
Directions to Ground IOEM and REM
WARNING: Disconnect external power to the unit before wiring.
AVERTISSEMENT : déconnectez l’alimentation externe de l’unité avant
d’effectuer un câblage quelconque.
1. Perform step 1 of IOEM and REM installation.
2. Open front panel - page 32.
3. Remove screw from location F(IOEM)/G (REM).
4. Feed ground wire through drilled hole in rubber grommet and to location
F(IOEM)/G (REM) on metal plate. Ground wire gauge must conform
to all locally applicable electrical codes.
5. Install a ring (eyelet) or spade (fork) terminal onto the ground bare wire
before terminating ground wire to ground location.
6. Return screw at F(IOEM)/G (REM) over terminal connection of ground
wire.
CAUTION: Run high and low voltage cables through separate bulkhead and
conduit.
Installation and Wiring

IOEM/REM Safey and Installation Guide
34
IOEM/REM Safey and Installation Guide
35
IOEM ground
REM ground
Installation and Wiring
7. Terminate other end of the earth ground wire to a cold water pipe, steel
rod, copper pipe, or earth ground.
8. Complete other wiring to IOEM and REM.
9. Close front panel - page 32.
Step 3 Wire Power
IOEM and REM expansion modules are available with eitherAC or DC power. The
DC version can only be powered by DC power. TheAC version can be powered by
either AC or DC. If an AC version is properly wired and congured for AC and
DC backup, and AC power fails, the instrument will be powered by DC backup
which supplies backup power. No user conguration is needed for the DC battery
backup and low DC power alarm to function.
CAUTION: At 120VAC, the IOEM and REM draws 25 watts (~0.2 amps).
Use wiring suitable for that load following all safety information and local
electrical codes.
Back up power is recommended when operating with AC power. Backup power
can be supplied by 12VDC or UPS battery source.
Wire AC Power
The AC power option includes an integrated universal (worldwide) AC switching
power supply, allowingAC power from anyAC receptacle 100-240VAC. AC power
wires are terminated at location Con I/O Board.
Directions to Wire AC Power
WARNING: Disconnect external power to the unit before wiring.
AVERTISSEMENT: déconnectez l’alimentation externe de l’unité avant
d’eectuer un câblage quelconque.
1. Perform steps 1 - 2 of IOEM and REM installation.
2. Open front panel - page32.
3. Install ferrite bead on to the line cord (AC power cord). The ferrite bead
(YSI p/n 606399, ferrite bead gure below) should be installed as close
to the module board as possible. Strip approximately 16.5 cm (6.5 in) of
insulating jacket off the end of the cord. Feed AC power cable through
drilled hole in rubber grommet in compression tting to location (IOEM)
B/ (REM) C and then pass the conductors through the ferrite bead 1
time. This will result in a loop of each conductor around the bead (ferrite
bead assembled gure below).
Installation and Wiring

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36
IOEM/REM Safey and Installation Guide
37
Ferrite bead (YSI p/n 606399)
Ferrite bead assembled
CAUTION: Run high and low voltage cables through separate bulkhead and
conduit.
Installation and Wiring
IOEM AC power
REM AC power
Installation and Wiring

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38
IOEM/REM Safey and Installation Guide
39
Installation and Wiring
4. Terminate AC power wires to pins “G” (ground), “L1”, and/or “L2/N”
according to applicable local electrical codes. Use minimum 18 gauge,
3 wire power cord.
CAUTION: It is recommended to use only the power cord provided to prevent
exceeding the current draw of the AC power supply.
5. Complete other wiring to IOEM and REM.
6. Close front panel - page 32.
7. Test AC power. PCB PWR status led will be solid green.
Wire DC Power and backup power
The IOEM and REM may be powered by most 9.0-16.5 VDC sources that provide
800mA of current and are isolated from mains supply by double or reinforced
insulation. The DC backup power source is user-supplied and can come from a
variety of choices including lead acid, gel cell, or UPS (with 12VDC transformer)
external batteries. DC power wires are terminated at location Aon the IOEM and
REM boards.
Notes:
-The IOEM and REM does not charge batteries. Quality assurance main-
tenance procedures should be established if batteries are to be fully
powered when used as back-up power source.
-Power supply voltage above 16.5 VDC may permanently damage the
IOEM and REM.
-When back up voltage falls below 9.0 volts, the IOEM and REM ceases
to operate properly.
-Some switching DC power supplies not supplied by YSI may result in
noisy readings.
Directions to Wire DC Power/DC Backup Power
WARNING: Disconnect external power to the unit before wiring. Follow
all manufacturer’s safety and installation instructions when providing power to
the IOEM and REM via a DC power supply.
AVERTISSEMENT : déconnectez l’alimentation externe de l’unité avant
d’effectuer le câblage. Suivez toutes les consignes de sécurité et d’installation
du fabricant lorsque vous fournissez de l’alimentation au modèle IOEM and
REM par un bloc d’alimentation à courant continu.
1. Perform steps 1 - 2 of IOEM and REM installation.
2. Open front panel - page 32.
3. Feed DC power cable through drilled hole in rubber grommet to location
A. The terminal strip is removable.
CAUTION: Run high and low voltage cables through separate bulkhead and
conduit.
4. Terminate DC power wires to pins (-) and (+) according to manufacturer
instructions and any applicable local electrical codes.
IOEM DC power
Installation and Wiring