Cortalk RMU1 Operator's manual

MOBILTEX® DATA LTD.
Calgary, Alberta
www.corTalk.com
TITLE: RMU1 Installation and Configuration Guide
DOCUMENT NO.:
RMU1-MAN-001
SHEET: 1 of 53
REV: 1.14
RMU1
Installation and Configuration Guide
RMU1-S/RMU1-G RMU1-I
Print Date:
July 11, 2018

MOBILTEX® DATA LTD.
Calgary, Alberta
www.corTalk.com
TITLE: RMU1 Installation and Configuration Guide
DOCUMENT NO.:
RMU1-MAN-001
SHEET: 2 of 53
REV: 1.14
RESTRICTED PROPRIETARY INFORMATION
This information disclosed herein is the exclusive property of Mobiltex®Data Ltd. and is not to be disclosed without the
written consent of Mobiltex®Data Ltd. No part of this publication may be reproduced or transmitted in any form or by
any means including electronic storage, reproduction, execution or transmission without the prior written consent of
Mobiltex®Data Ltd. The recipient of this document by its retention and use, agrees to respect the security status of the
information contained herein.
This document is intended for limited circulation.
The information contained in this document is subject to change without notice and should not be construed as a
commitment by Mobiltex®Data Ltd. unless such commitment is expressly given in a covering document. Mobiltex®
and corTalk®are registered trademarks of Mobiltex®Data Ltd.
©2014-2018 Mobiltex®Data Ltd. All rights reserved.
CURRENT REVISION APPROVALS (Revision 1.14)
Name
Location
Job Function
Signature
Date
Tony da Costa
Calgary
Engineering Manager
Jerry Chilibecki
Calgary
Director of Engineering
REVISION HISTORY
Rev
Start Date
Approval
Date
Description
Prepared By
1.00
Feb 7, 2014
Original issue.
Tony da Costa
1.01
Feb 10, 2014
Fixed bond diagram connections.
Tony da Costa
1.02
Mar 3, 2014
Updates for v1.01 firmware.
Tony da Costa
Jerry Chilibecki
1.03
Mar 27, 2014
Added regulatory compliance statements.
Tony da Costa
1.04
Apr 12, 2014
Updated programming interface pictures to match production devices.
Tony da Costa
1.05
June 10, 2014
Added separate DC/AC coupons measurement mode (v1.04+ firmware).
Added datalogger information (v1.04+ firmware).
Added AC mitigation transformer adapter information.
Tony da Costa
1.06
Oct 1, 2014
Added additional accessory information.
Tony da Costa
1.07
Mar 21, 2015
Added isolated digital input information.
Minor text edits.
Tony da Costa
1.08
May 4, 2015
Added information for RMU1-I variant.
Updated input specifications.
Tony da Costa
1.09
Jan 11, 2016
Added information on AC peak current detector mode.
Clarified datalogger operation.
Tony da Costa
1.10
Mar 21, 2017
Minor clarification to manual depolarization (coupon disconnect)
operation.
Tony da Costa
1.11
May 12, 2017
Added cellular information for regulatory approvals.
Tony da Costa
1.12
May 25, 2017
Added RMU1PGM-BT information.
Tony da Costa
1.13
Oct 4, 2017
Added test station flex information.
Added RMU1/2/3 programmer description.
Added additional parts to accessories table.
Tony da Costa
1.14
July 6, 2018
Added Single Coupon + Bond CP39 measurement type (v1.14+ firmware)
Updated AC mitigation transformer list.
Tony da Costa

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TITLE: RMU1 Installation and Configuration Guide
DOCUMENT NO.:
RMU1-MAN-001
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REV: 1.14
Table of Contents
1Introduction ..............................................................................................................................................................6
2General Safety Information ......................................................................................................................................7
3Kit Contents..............................................................................................................................................................8
3.1 RMU1-S (Globalstar Simplex Satellite) Kit A20A00RMU10 .........................................................................8
3.2 RMU1-I (Iridium SBD Satellite) Kit A20A00RMU11 ....................................................................................8
3.3 RMU1-G (LTE Cellular) Kit A20A00RMU12 (USA), A20A00RMU13 (Canada).........................................9
3.4 RMU1 Optional Installation Items....................................................................................................................9
4Quick Bench Test ...................................................................................................................................................13
5Installation..............................................................................................................................................................14
5.1 Unit Installation ..............................................................................................................................................14
5.2 Measurement Type Wiring.............................................................................................................................16
5.3 Wiring With Flex PCB Equipped Test Station...............................................................................................24
5.4 Isolated Digital Input......................................................................................................................................27
5.5 Configuration..................................................................................................................................................28
5.6 Startup and Verification..................................................................................................................................28
5.7 Status Display.................................................................................................................................................28
5.8 Coupon Disconnect.........................................................................................................................................30
5.9 Accessory Installation.....................................................................................................................................30
5.9.1 Test Station Shield for RMU1 –A20100RMU11...................................................................................30
5.9.2 Banana Jack Test Point Kit –A20100RMU10 .......................................................................................30
5.9.3 Shield Installation with Banana Jack Test Point Kit...............................................................................31
6Configuration Using a PC.......................................................................................................................................33
6.1 Configuration Equipment Requirements ........................................................................................................33
6.2 Software Installation.......................................................................................................................................34
6.2.1 Driver Installation...................................................................................................................................34
6.2.2 Configuration Application Installation ...................................................................................................36
6.2.3 Adobe Acrobat Reader XI ......................................................................................................................37
6.3 RMU1 Configuration......................................................................................................................................37
6.3.1 RMU1 Communications and Status........................................................................................................38
6.3.1.1 Link Status..........................................................................................................................................38
6.3.1.2 Firmware Version ...............................................................................................................................38
6.3.1.3 Serial#.................................................................................................................................................38
6.3.1.4 Read Config From RMU1 ..................................................................................................................38
6.3.1.5 Write Config To RMU1......................................................................................................................39
6.3.1.6 Defaults...............................................................................................................................................39
6.3.1.7 Set RMU1 Clock.................................................................................................................................39
6.3.1.8 Read Faults .........................................................................................................................................39
6.3.1.9 Detailed Status....................................................................................................................................39
6.3.1.10 Cap Detect Calibration....................................................................................................................40
6.3.1.11 Extract Datalogger Mem.................................................................................................................41
6.3.1.12 Clear Datalogger Mem....................................................................................................................41
6.3.1.13 Test Transmission...........................................................................................................................41
6.3.1.14 Reboot RMU1.................................................................................................................................41
6.3.2 Measurement Type .................................................................................................................................41
6.3.3 Measurement slots Configuration...........................................................................................................42
6.3.4 Depolarization (CP33 and CP38 Measurement Types Only) .................................................................42
6.3.5 Periodic Report Interval..........................................................................................................................42
6.3.6 Options....................................................................................................................................................43
6.3.7 Readings .................................................................................................................................................43
7Mobile Device Configuration.................................................................................................................................44
8Battery Replacement...............................................................................................................................................47
9Technical Support...................................................................................................................................................49
A. Equipment Specifications...................................................................................................................................50
B. RMU1-S Globalstar Simplex Satellite Coverage Map .......................................................................................51
C. RMU1-I Iridium SBD Satellite Coverage Map ..................................................................................................52
D. RMU1 Regulatory Statements............................................................................................................................53

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TITLE: RMU1 Installation and Configuration Guide
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Figures
Figure 1 RMU1 Communications Block Diagram...........................................................................................................6
Figure 2 CorView All Readings Page.............................................................................................................................13
Figure 3 RMU1 Installation Hardware...........................................................................................................................14
Figure 4 RMU1 Installed In Test Station........................................................................................................................14
Figure 5 Three Inch Pipe Direct Installation...................................................................................................................15
Figure 6 Installation Inside NEMA4X Box....................................................................................................................15
Figure 7 Single Coupon Wiring Diagram (CP33) ..........................................................................................................16
Figure 8 Dual Coupon Wiring Diagram (CP34).............................................................................................................17
Figure 9 Single Coupon with AC Mitigation Wiring Diagram (CP35)..........................................................................18
Figure 10 Bond Wiring Diagram (BOND36).................................................................................................................19
Figure 11 Test Point Wiring Diagram (TP37)................................................................................................................20
Figure 12 Separate DC and AC Coupons Wiring Diagram (CP38)................................................................................21
Figure 9 Single Coupon with DC Bond Wiring Diagram (CP39) ..................................................................................22
Figure 13 RMU1 Measurement Wiring Connections.....................................................................................................23
Figure 14 Kit With Flex PCB Test Station.....................................................................................................................24
Figure 15 Test Station Flex PCB Connections ...............................................................................................................25
Figure 16 Single Coupon Flex Connections ...................................................................................................................25
Figure 17 Dual Coupon Flex Connections .....................................................................................................................26
Figure 18 Single Coupon w/AC Mitigation Flex Connections.......................................................................................26
Figure 19 Bond Flex Connections ..................................................................................................................................26
Figure 20 Separate AC/DC Coupons Flex Connections.................................................................................................27
Figure 21 Isolated Digital Input Connection Example ...................................................................................................27
Figure 22 RMU1 Segment LCD and LED Status Indicators..........................................................................................28
Figure 23 LCD Enable Magnet Location .......................................................................................................................29
Figure 24 Test Station Shield A20100RMU11...............................................................................................................30
Figure 25 Banana Jack Test Point Kit A20100RMU10..................................................................................................31
Figure 26 Shield Installation with Banana Jack Test Point Kit ......................................................................................32
Figure 27 RMU1 Programming Interface.......................................................................................................................33
Figure 28 RMU1/2/3 Programmer With RMU1ADP.....................................................................................................33
Figure 29 RMU1Installer Dialog....................................................................................................................................34
Figure 30 Driver Installation Screen...............................................................................................................................34
Figure 31 Driver Installation - Found New Hardware....................................................................................................35
Figure 32 Driver Installation - Install From Specific Location.......................................................................................35
Figure 33 Driver Installation - Driver Location Selection..............................................................................................35
Figure 34 Driver Installation - Driver File Search..........................................................................................................36
Figure 35 RMU1 Configuration Application Installation Dialog...................................................................................36
Figure 36 RMU1 Configuration Application Installation Complete ..............................................................................36
Figure 37 RMU1 Programming Interface Installation....................................................................................................37
Figure 38 RMU1CONFIG Main Screen.........................................................................................................................38
Figure 39 Faults Dialog..................................................................................................................................................39
Figure 40 Detailed Status Dialog....................................................................................................................................40
Figure 41 Cap Detect Sensor Calibration Dialog ...........................................................................................................40
Figure 42 RMU1 Cap Proximity Sensor.........................................................................................................................41
Figure 43 RMU1PGM-BT Bluetooth Interface Cable....................................................................................................44
Figure 44 RMU1/2/3 Programming Interface With RMU1ADP....................................................................................44
Figure 45 RMU1PGM-BT USB Battery Pack Charging................................................................................................45
Figure 46 RMU1PGM-BT Connected To Battery Pack and RMU1..............................................................................45
Figure 47 iOS App Sample Screenshots.........................................................................................................................46
Figure 48 RMU1-S (RMU1-G similar) Transmitter Board Screws................................................................................47
Figure 49 RMU1-I Transmitter Board Screws ...............................................................................................................47
Figure 50 Battery Polarity Markers ................................................................................................................................48
Figure 51 Globalstar Simplex Satellite Coverage Map ..................................................................................................51

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TITLE: RMU1 Installation and Configuration Guide
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Tables
Table 1 RMU1-S Kit Contents .........................................................................................................................................8
Table 2 RMU1-I Kit Contents..........................................................................................................................................8
Table 3 RMU1-G Kit Contents.........................................................................................................................................9
Table 4 RMU1 Accessories............................................................................................................................................12
Table 5 Description of Special LCD Icons.....................................................................................................................29

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TITLE: RMU1 Installation and Configuration Guide
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1Introduction
The RMU1 Remote Monitoring Unit is part of the Mobiltex Data Ltd. corTalkfamily of cathodic monitoring and
control products. Mobiltex Data Ltd. was formed in 1985 and specializes in the design and manufacture of high
reliability, industrial mobile data systems for the communications, transportation and utility markets. Mobiltex has been
providing solutions for the cathodic monitoring industry since 1991.
The RMU1 is a low cost, high reliability device intended to monitor coupons and bonds. The device is available in two
satellite (RMU1-S and RMU1-I) and one cellular (RMU1-G) communication configurations. The field hardware
consists of a single component that is usually mounted inside a plastic test station. The device operates for 10+ years
from internal, low cost, field replaceable batteries. This self-powered solution can be used to monitor coupons and bonds
without the requirement for nearby line or solar power sources. The RMU1 has integral high-energy surge suppression
and provides unprecedented lightning immunity because there are no connections to electrical ground.
The RMU1 monitors and transmits eight channels of information. An integral IR proximity sensor can be used as a cap
open sensor or tamper detection alarm. The RMU1 measures temperature and internal battery voltage. A user accessible
magnetic switch allows the transmission of uniquely identified messages that can be used to record site visit information.
Measurement data is wirelessly transmitted to the Mobiltex corView servers. CorView manages all field data
communications, maintains three years of measurement data, sends alarm exception and system performance emails,
and provides password protected remote customer access. With the proper credentials, corView can be accessed using
an Internet Explorer web browser. The measurement data is presented in an intuitive tabular format or graphical mapping
display that color-codes abnormal measurement or site conditions for quick user interpretation. CorView can also
provide near real-time email notification of abnormal measurement and alarm conditions.
Satellite Land Earth
Station
Mobiltex corView
Servers
Monitored
Coupon or
Bond
Internet
corView Web
Readings
Email
Alerts &
Reports
Wireless
Device
Support
Internet Device Support
RMU1
Inside Test Station
Cellular Network
Figure 1 RMU1 Communications Block Diagram

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2General Safety Information
The following safety precautions must be reviewed to avoid injury and prevent damage to this product or any products
connected to it. To avoid potential hazards, use this product only as specified. If the equipment is used in a manner not
specified by the manufacturer, the protection provided by the equipment may be impaired.
Only qualified personnel should perform service procedures.
While using this product, you may need to access other parts of a larger system. Read the safety sections of the other
component’s manuals for warnings and cautions related to operating the system.
To Avoid Fire or Personal Injury
Connect and Disconnect Properly. Do not connect or disconnect terminal wiring while the wires are connected to a
voltage source.
Observe All Terminal Ratings. To avoid fire or shock hazard, observe all ratings and markings on the product. Consult
the product manual for further ratings information before making connections to the product. Do not use an input marked
with measurement category I for measurements within measurement categories II, III or IV. Do not connect category II
inputs directly to mains--a Class 2 CSA/UL transformer must be used for isolation.
Do Not Operate Without Covers. Do not operate this product with covers or panels removed.
Avoid Exposed Circuitry. Do not touch exposed connections and components when power is present.
Do Not Operate With Suspected Failures. If you suspect there is damage to this product, have it inspected by qualified
service personnel.
Do Not Operate in Wet/Damp Conditions.
Keep Internal Product Surfaces Clean and Dry.
Symbols and Terms
Terms in this Manual. These terms may appear in this manual:
WARNING. Warning statements identify conditions or practices that could result in injury or loss of life.
CAUTION. Caution statements identify conditions or practices that could result in damage to this product or other
property.
Terms on the Product. These terms may appear on the product:
DANGER. Danger indicates an injury hazard immediately accessible as you read the marking.
WARNING. Warning indicates an injury hazard not immediately accessible as you read the marking.
CAUTION. Caution indicates a hazard to property including the product.
Symbols on the Product. The following symbols may appear on the product:
CAUTION
Refer to
Manual
Protective
Ground
(Earth)
Terminal
Functional
Ground
Terminal
AC or DC
Input

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3Kit Contents
3.1 RMU1-S (Globalstar Simplex Satellite) Kit A20A00RMU10
1 pc –RMU1-S remote monitoring unit.
Typically installed inside a test station.
Mobiltex Part Number A15000RMU10
1 pc –½” #6-32 screw
This item comes pre-attached to a mating nut in the RMU1 unit.
Mobiltex Part Number H013120500S
Table 1 RMU1-S Kit Contents
3.2 RMU1-I (Iridium SBD Satellite) Kit A20A00RMU11
1 pc –RMU1-I remote monitoring unit.
Typically installed inside a test station.
Mobiltex Part Number A15000RMU11
1 pc –½” #6-32 screw
This item comes pre-attached to a mating nut in the RMU1 unit.
Mobiltex Part Number H013120500S
Table 2 RMU1-I Kit Contents

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3.3 RMU1-G (LTE Cellular) Kit A20A00RMU12 (USA), A20A00RMU13 (Canada)
1 pc –RMU1-G remote monitoring unit.
Typically installed inside a test station.
Mobiltex Part Number A15000RMU12 (USA)
Mobiltex Part Number A15000RMU13 (Canada)
1 pc –½” #6-32 screw
This item comes pre-attached to a mating nut in the RMU1 unit.
Mobiltex Part Number H013120500S
Table 3 RMU1-G Kit Contents
3.4 RMU1 Optional Installation Items
RMU1 Wiring Kit
24 cm (10 in.) wiring harness with factory installed ¼” ring
terminals, assorted extra crimp terminals, cable ties. The components
of this kit are typically used to interconnect the measurement signals
from the coupon or bond test station to the RMU1.
Mobiltex Part Number A20103RMU10
Replacement Battery Pack
Kit of 4 AA batteries for maintenance purposes
Mobiltex Part Number B02221RMU10
RMU1PGM Programming Interface
Mobiltex Part Number A15000RMU1P
For use with a PC only. White USB cable.
***No longer available. Replaced by A20A0332701.***
RMU1PGM-BT Programming Interface Kit
Mobiltex Part Number A20A0332701
Capable of Bluetooth communications with a phone/tablet. Can also
be used with a PC through the USB connection. Black USB cable.
Kit includes a carrying case and portable USB battery pack.

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RMU1ADP RMU2/3 Programmer Adapter
Mobiltex P/N A1506033001
Allows an existing RMU2/3 Programming Interface to be used with
RMU1 devices.
RMU1/2/3-BT Programmer Kit
Mobiltex P/N A20A0333101
Universal programming kit for RMU1, RMU2, and RMU3 devices.
Includes RMU1/2/3 base programmer (A1506033101), RMU1ADP
(A1506033001), LiIon battery pack, soft case and USB stick with
programming software. Capable of Bluetooth communications with a
phone/tablet. Can also be used with a PC through the USB connection.
Test Magnet
Mobiltex Part Number H00000MAG04
Modified RMU1 Replacement Lid For Direct Installation In 3” Pipe
Mobiltex Part Number H23390RMU02
Only for RMU1S or RMU1G.
Spacer Ring For 3” Test Stations
Mobiltex Part Number H23510RMU01 (Black)
Mobiltex Part Number H23530RMU01 (Orange)
Mobiltex Part Number H23540RMU01 (Yellow)
Mobiltex Part Number H23550RMU01 (Green)
Mobiltex Part Number H23590RMU01 (White)
Mobiltex Part Number H23560RMU01 (Blue)
Mobiltex Part Number H235A0RMU01 (Red)
Test Station with 5 plated screws and top cover (Pro-Mark)
Mobiltex Part Number A20A03RMU10 (Orange)
Mobiltex Part Number A20A03RMU11 (Yellow)
Mobiltex Part Number A20A03RMU12 (Green)
Mobiltex Part Number A20A03RMU13 (White)
Mobiltex Part Number A20A03RMU17 (Blue)
Mobiltex Part Number A20A03RMU16 (Red)

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Lockable bracket for Pro-Mark test station. (Padlock & test station not
included)
Mobiltex Part Number A20B03RMU10
Lockable NEMA4X Enclosure
6.75”W x 7.5”H x 5.5”D (171mm x 190mm x 140mm)
Comes with RMU1 bracket.
Mobiltex Part Number A03700RMU10
Adapter assembly for use with separate DC and AC coupon mode.
Integral 10 ohm shunt resistor.
Mobiltex Part Number A04060296A1
Large opening (36mm/1.42”) AC mitigation measurement
transformer. 126A AC full scale.
1.57” x 1.63” x 2.64”(40mm x 41.4mm x 67mm)
Includes 3.3’(1m) leads.
Mobiltex Part Number T01252RMU04
Medium opening (24mm/0.94”) AC mitigation measurement
transformer. 42A AC full scale.
1.34” x 2” x 2.64”(34mm x 51mm x 67mm)
Includes 3.3’(1m) leads.
Mobiltex Part Number T01252RMU02
Small opening (15.2mm/0.60”) AC mitigation measurement
transformer. 31A AC full scale.
1.22” x 1.26” x 1.81”(31mm x 32mm x 46mm)
Includes 3.3’(1m) leads
Mobiltex Part Number T01252RMU03
Electrical isolation shield.
Prevents accidental user contact with exposed test station termination
screws.
Mobiltex Part Number A20100RMU11

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Banana jack test point kit.
Replaces standard test point termination screws to provide banana
jack functionality. Kit contains 5 replacement screws, washers and
nuts.
Mobiltex Part Number A20100RMU10
Test station with banana jack test points and shield.
Kit consists of an orange test station (A20A03RMU10), 5 installed
banana jack test point screws (A20100RMU10), and a drilled test
station shield (A20100RMU11). The components are factory installed
in the configuration shown. Alternative custom configurations are
available for purchases of 100+ units.
Mobiltex Part Number A20A03RMU14
Test station with RMU1-to-test-station flex PCB
Connects the RMU1 6-pin connector directly to the test station bolts.
Mobiltex P/N A03A00RMU01 (Orange with 8 bolts)
Mobiltex P/N A03A00RMU02 (Orange with 5 banana jack bolts)
Separate AC/DC Coupon Board For Test Station With Flex PCB
10 Ohm shunt and link PCB allowing use of separate AC/DC coupons
with test station flex PCB.
Mobiltex P/N A20A0333401
Table 4 RMU1 Accessories

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4Quick Bench Test
1. For the RMU1-S or RMU1-I, locate the RMU1 outdoors with a clear view (120 degrees in all directions is optimum)
of the sky and with the top dome with the molded corTalk® logo of the device facing upwards towards the sky.
RMU1-I battery life will be significantly impacted by poor sky views since communication with the satellite
constellation is attempted and re-attempted until the satellite system acknowledges the transmission. The RMU1-
G cellular antenna, located in the top dome area, requires a clear communications path to a cellular tower; optimal
orientation will be site dependent.
2. Power on the RMU1 by twisting the lid clockwise until a switch click is heard. The LCD display will display “Init”
(if programmer is attached) briefly followed by “bSY” for several seconds. The lid should be rotated an additional
1/2 turn after the switch click is heard in order to fully engage the sealing gasket.
3. If the GPS receiver is enabled in the configuration (for the RMU1-S, the GPS is always enabled at power-up), the
RMU1 will display the ‘GPS’ icon on the LCD display and also show a number in the format of ‘X.YY’ where X
is the number of satellites being received and YY is the average signal strength of those satellites. The RMU1 will
not send a power-up message or display measurements on the LCD screen until GPS signal acquisition is complete.
4. The corTalk host is accessed using a web browser at https://corview.cortalk.com. Enter the User Name and
Password that were provided to you when your corView account was setup.
5. Upon successful login to corView you will be presented with an “All Readings” screen that will display the readings
for all your RMU device(s). You should see a status of “New Unit” or “Power Up” along with the readings from
the device that you just connected.
Note that transmissions from field devices typically require from <1 minute (good antenna view of the sky) to 30
minutes (poor antenna view of the sky) to arrive at corView. The displayed measurement screen on corView will
refresh automatically every 5 minutes. If you wish to see more immediate readings, simply click on the refresh
button (typically F5) in your browser.
CorView can be configured to automatically send emails containing the measurement readings to an individual or
group of email users. Because these emails are short and wireless-friendly, many clients send the readings directly
to their field installer’s wireless email device(s) for near immediate end-to-end operation confirmation and
verification of measurement values.
Figure 2 CorView All Readings Page
6. Pressing a magnet against the area marked “TEST” on the RMU1 will force an immediate analog measurement and
data transmission.
7. After the device has transmitted the measurements, corView should display a new status of “Button Press” along
with the associated analog readings for the device.
8. When the bench test is completed, simply loosen the cap on the RMU1 by twisting counter-clockwise until a switch
click is again heard. This action forces the RMU1 device to power down. Rotate the lid an additional ½ turn to
ensure the device remains powered down.

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5Installation
Warning: Only properly qualified personnel should work on installation of this equipment. Company and
industry safety procedures must be followed.
Installation consists of three steps: unit installation, wiring, and device configuration.
5.1 Unit Installation
RMU1-S/RMU1-G RMU1-I #6 Screw
Figure 3 RMU1 Installation Hardware
The RMU1 may be installed inside an industry standard test station, or with an optional cap, directly onto a 3” PVC
pipe. To accommodate a standard test station, a spacer ring is required to raise the test station cap enough to allow the
RMU1-S or RMU1-G to fit; for the RMU1-I, two spacer rings are needed. The spacer ring attaches to the threaded
portion of the lower test station mount. With specialized cover locking systems or for other special test station
installations, it may also be possible to cut off part of the test station terminal board to make room for the RMU1; in that
case the spacer ring would not be needed.
Figure 4 RMU1 Installed In Test Station

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Figure 5 Three Inch Pipe Direct Installation
Figure 6 Installation Inside NEMA4X Box

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5.2 Measurement Type Wiring
The RMU1 can be wired in several different pre-defined configurations for single coupon, dual coupon, separate AC
and DC coupons, and bond monitoring. The diagrams in the following pages illustrate typical installations for each
measurement type. Each measurement type diagram contains a table indicating the six measurement points (Slots) that
are transmitted to the corView server.
Note that for pipe-to-soil measurements, as shown in the installation diagrams, the readings sent to corView will be
negative. Also note that the RMU1 measurement inputs must not be directly connected to mains AC power.
The following ranges apply to measured signals:
Potential: +/-31VDC, 22VAC
Coupon Current: +/-6mADC, 4.25mAAC Low Range
+/-60mADC, 42.5mAAC Med Range
+/-200mADC, 140mAAC High Range
Bond Shunt: +/-6mVDC, 4.25mVAC Low Range
+/-60mVDC, 42.5mVAC Med Range
+/-200mVDC, 140mVAC High Range
RMU1 Single Coupon
CP Coupon Structure Reference
Cell
DATA
SLOT DESCRIPTION
1 Coupon DC Potential
2
3
4
Coupon AC Potential
Coupon Instant Disconnect DC Potential
Coupon AC Current Density
5
6
Coupon DC Protection Current
Depolarized Coupon DC Potential
LCD ICONS
COUPON DC V
COUPON AC V
COUPON INSTANT DISCONNECT DC V
COUPON CURRENT AC A/m2
COUPON CURRENT DC A/m2
COUPON DEPOLARIZED DC V
Figure 7 Single Coupon Wiring Diagram (CP33)

MOBILTEX® DATA LTD.
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www.corTalk.com
TITLE: RMU1 Installation and Configuration Guide
DOCUMENT NO.:
RMU1-MAN-001
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RMU1 Dual Coupon
DATA
SLOT DESCRIPTION
1 Coupon DC Potential
2
3
4
Coupon AC Potential
Coupon Instant Disconnect DC Potential
Coupon AC Current Density
5
6
Coupon DC Protection Current
Native Coupon DC Potential
CP Coupon Structure Reference
Cell
Native
Coupon
LCD ICONS
COUPON DC V
COUPON AC V
COUPON INSTANT DISCONNECT DC V
COUPON CURRENT AC A/m2
COUPON CURRENT DC A/m2
NATIVE COUPON DC V
Figure 8 Dual Coupon Wiring Diagram (CP34)

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www.corTalk.com
TITLE: RMU1 Installation and Configuration Guide
DOCUMENT NO.:
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RMU1 Single Coupon w/AC Mitigation
Ground
Decoupling
Device
AC Current
Transformer CP Coupon Structure Reference Cell
DATA
SLOT DESCRIPTION
1 Coupon DC Potential
2
3
4
Coupon AC Potential
Coupon Instant Disconnect DC Potential
Coupon AC Current Density
5
6
Coupon DC Protection Current
AC Mitigation Current
LCD ICONS
COUPON DC V
COUPON AC V
COUPON INSTANT DISCONNECT DC V
COUPON CURRENT AC A/m2
COUPON CURRENT DC A/m2
AC MITIGATION AC A
Figure 9 Single Coupon with AC Mitigation Wiring Diagram (CP35)
With this type of installation, a scaling factor must be entered for the AC mitigation slot in the RMU1 configuration.
The scaling factor is dependent on the transformer and the burden/divider resistors. For Mobiltex supplied transformer
kits, the required slot scale factor is printed on the transformer assembly. The slot input range must be set to ‘HIGH’ in
the RMU1 configuration.

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TITLE: RMU1 Installation and Configuration Guide
DOCUMENT NO.:
RMU1-MAN-001
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RMU1 Bond
Structure #1Structure #2 Reference
Cell
Bond
DATA
SLOT DESCRIPTION
1 P/S1 DC Potential
2
3
4
P/S1 AC Potential
P/S2 DC Potential
P/S2 AC Potential
5
6
Bond DC Current
Bond AC Current
LCD ICONS
P/S1 DC VOLTS
P/S1 AC VOLTS
P/S2 DC VOLTS
P/S2 AC VOLTS
BOND DC A
BOND AC A
Figure 10 Bond Wiring Diagram (BOND36)

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TITLE: RMU1 Installation and Configuration Guide
DOCUMENT NO.:
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RMU1 Test Point
Structure #1Structure #2 Reference
Cell
Bond
DATA
SLOT DESCRIPTION
1 P/S1 DC Potential
2
3
4
P/S1 AC Potential
P/S2 DC Potential
P/S2 AC Potential
5
6
DC Current
AC Current
LCD ICONS
P/S1 DC VOLTS
P/S1 AC VOLTS
P/S2 DC VOLTS
P/S2 AC VOLTS
DC A
AC A
Figure 11 Test Point Wiring Diagram (TP37)