James Rebarscope R-C-400 User manual

R-C-400, R-C-450, R-C-410
Rebarscope®
Operator’s Manual
Original Instructions: Revision July 2018

Notice
The Rebarscope® System has been tested in accordance with the EU
regulations governing Electro-Magnetic compliance and it meets required
directives.
Rebarscope® System is a registered trademark of James® Instruments
Inc. and is property of its respective owner.
© 2018 James® Instruments Inc. All rights reserved.
No part of this publication may be reproduced, stored in a retrieval system,
or transmitted, in any form, or by any means, mechanical, electronic,
photocopying, recording, or otherwise, without prior written permission of
James®Instruments.
No patent liability is assumed with respect to the use of the information
contained herein. Moreover, because James®Instruments is constantly
striving to improve its high-quality products, the information contained in
this manual is subject to change without notice. Every precaution has been
taken in the preparation of this manual. Nevertheless, James®Instruments
assumes no responsibility for errors or omissions. Neither is any liability
assumed for damages resulting from the use of the information contained
in this publication.

We: James®Instruments Inc.
Of: Chicago, IL
In accordance with the following Directive(s):
2006/95/EC Low Voltage Directive
hereby declare that:
Equipment Rebarscope® System
Model Number R-C-400, R-C-450, R-C-410
is in conformity with the applicable requirements of the following
documents
Ref. No.
ACI 318
Title
Building Code Requirements for Structural
Edition/date
2008
Concrete and Commentary.
DIN 1045 Concrete, reinforced and prestressed concrete
Structures. 2008
EN 61000-6-3 Electromagnetic compatibility (EMC). Generic
standards. Emission standard for residential,
commercial and light-industrial environments.
2007
EN 61000-6-2 Electromagnetic Compatibility (EMC)
Part 6-2: Generic Standards—Immunity
for Industrial Environments.
1999
BS 1881-204 Testing concrete. Recommendations on the
use of electromagnetic covermeters. 1988
I hereby declare that the equipment named above has been designed to
comply with the relevant sections of the above referenced specifications.
The unit complies with all applicable Essential Requirements of the
Directives.
Signed:
Name: Michael Hoag
Position: President, James®Instruments Inc.
Location: Chicago, IL
On: 7/2/2018

Table of Contents
Introduction.......................................................................................1
Data Logger Unit ..............................................................................2
Instrument Contents List ..................................................................3
Contents List............................................................................4
Control Panel....................................................................................5
Control Panel Buttons..............................................................6
Menu Layout.....................................................................................7
Using the Rebarscope® on Location ..............................................8
Removing the Lid.....................................................................8
Attaching the Shoulder Support Straps ...................................8
Sensor Probe .................................................................................10
Short / Deep Mode .........................................................................11
Locating Ferrous and Non-Ferrous Metals ....................................13
Option 1 – Graphic Bar Display.............................................13
Option 2 – Number Display ...................................................13
Determining Cover .........................................................................14
Determining Bar Size .....................................................................17
Rebar Sizing Guidelines ........................................................23
Pitch & Resolution .................................................................24
Utilizing Cover Map Function .........................................................25
System Menu .................................................................................30
Display Cursor.......................................................................30
Language Options.................................................................31
Measuring Units.....................................................................32
Clock Menu............................................................................32
Erase Memory.......................................................................34
Battery Operation ..................................................................35
Scan Cart (R-C-410 Only)..............................................................38
Data Handler Introduction ..............................................................42
Features.................................................................................42
Minimum System Requirements............................................42
Data Handler Overview..................................................................45
Software Functions................................................................45
Software Installation.......................................................................46
Uploading Cover Map (R-C-450 and R-C-410 only) ......................50
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Contents
Uploading Scan Map (R-C-410 only) .............................................54
Graphic representation of the Scan Map data................................55
Troubleshooting .............................................................................58
Maintenance...................................................................................61
Safety .............................................................................................61
Available Rebarscope® Accessories............................................62
Specifications.................................................................................63
Warranty Information......................................................................65
Repair Policy..................................................................................70
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Introduction
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Introduction
The James® Instruments Rebarscope® utilizes the latest in eddy
current sensing and micro-processor technology to accurately
locate, determine the depth of, and estimate the size of metal
objects in concrete. The eddy current sensor is specifically
designed to react to the outer surface of the metal object only. It is
uninfluenced bysmall particles in the concrete, whether the
concrete is fresh or hardened, wet or dry.
The Rebarscope® has built-in test modes for rebar/post tension
cable, conduit and copper pipe. The sensor allows the unit to locate
both ferrous and nonferrous metals in concrete.
With an easy to view display, the Rebarscope® provides the user
with an instantaneous structural analysis. The user is aided by
using a graphic bar in the display, and an audio tone to quickly and
accurately locate metal objects. Large numbers in the display show
the estimate of cover. This information can then be used to display
a map of the cover throughout the structure. Further options allow a
2-dimensional cross-section of the concrete under test.
The Rebarscope® was developed for real world application and
everyday durability in mind. It’s rugged and splash resistant case
allows the user to use the Rebarscope® in the field. It’s small but
sturdy sensing probe can withstand test after test with little wear on
the probe face. Additionally, the Rebarscope® is able to
compensate the sensor signal for a wide temperature range; as
may be seen during in-situ field testing.
The Rebarscope® enables the user to store field test data, and later
upload it to a Personal Computer. Once downloaded, the software
allows the user to analyze the data, while a graphing tool function
allows the creation of a contour map.

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Data Logger Unit
The data logger unit is a standard with the James® Instruments
Rebarscope®. It is a sophisticated, rugged field proven unit. The
embedded microprocessor technology enables the user to easily
locate, determine the amount of cover, record, and analyze ferrous
and non- ferrous metals.
The large easy to read numbers on the data logger display make
the Rebarscope® user friendly when estimating cover or bar
size.
Plus, with a memory capacity of 8000 data points, the data
logger
allows for a large sum of data to be stored for later
analysis.
The front panel of the data logger unit allows the user to interface
with the sensor probe, scan cart, headphones, charger and a
personal computer via a USB port. The large viewing window
protects the LCD display from possible damages that may occur
during operation. Additionally, large control buttons on the front
panel enable the user to easily scroll through menu options.

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e
Instrument Contents List
Each Rebarscope® comes with the following items included in the
carrying case.
Figure 1: Rebarscop ® System Contents

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Contents List
Item # Description
1Case – Used for carrying the Rebarscope®
and
accessories.
2Rebarscope® Instrument – Rebar locator encased
in
a durable protective case.
3Instruction Manual – Operating instructions for
Rebarscope®.
4Calibration Certificate – Certificate to confirm that the
instrument has been calibrated to meet or exceed
publishedspecifications.
5USB Cable – Serial cord used to connect the
Rebarscope® to a PC to upload data.
6AC Power Adapter – Used to power the Rebarscope®
and recharge the unit.
7Headphones – Used in noisy environments.
8Sensor Probe – Shows direction of rebar.
9Phone Jack – For headset.
10 8’ Coiled Cable – Used with the Sensor Probe.
11 1 5/8” Spacer Block – Used to add space in lower
coversituations.
12 3/8” Spacer Block – Used for sizing feature.
13 Locating Template – Used for sizing feature.
14 Support Strap – Used to secure the Rebarscope®
to
the user during testing.
15 Scan Cart – (opt.) Comes with Complete system only.
16 Scan Cart Extension Poles – (opt.) Used to guide
Scan Cart
17 Scan Cart Cable – (opt.) Yellow cable used to connect
Scan Cart to main unit.

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Control Panel
The following buttons appear on the James® Instruments
Rebarscope® System.
Figure 2: Rebarscope® System Buttons

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Control Panel Buttons
Key Definition
The power button. Momentarily push this key to turn
“on” the unit. Pressing it again turns off the unit. Upon
power up, the unit will display the locate screen. Press
the escape keyto get to the Main Menu.
The up arrow button. This key is used to scroll through
various settings and wave frames.
The down arrow button. This key is used to scroll
through various settings.
The left arrow button. This key allows you to scroll
through various settings.
The right arrow button. This keyallows you to scroll
through various settings.
The enter button. Pressing this key allows you to
choose main menu selections. The enter key also
allows you to prepare the Rebarscope® for operation.
The escape button. Pressing this keyallows you to
return to the main menu screen from any sub screen.
The back light button. Depressing this key the backlight
of the display comes on. Depressing the keyagain
turns the backlight off.

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Menu Layout
®
Figure 3: Rebarscope
Function Flow Chart

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For Quick Reference, in “LOCATE COVER” screen:
1. For Automatic (RS), Short or Deep mode, go to line
and press the Left arrow button to change
betweensettings.
2. For Audio Feature – go to and press the
Right arrow button once for beeps, twice for continuous
tone, and three times for audio off.
3. Material Options – Rebar (Post Tension Cable) / Conduit /
Copper.
System Menu
Using the Rebarscope® on Location
Removing the Lid
For ease of use in the field, the Rebarscope® lid can be
removed
and the shoulder straps installed. To do so, fully open
the lid and
the cover can be carefully pushed off of the case
hinge pins.
Attaching the Shoulder Support Straps
The Rebarscope® support straps can be used to hold the
Rebarscope® once the Rebarscope® lid has been removed.
When
using the Rebarscope® support straps, make sure that an
eyelet
hook is connected to each corner of the Rebarscope® .
Two of the
hooks clip to the O-rings, while the other two clip
around the hinge
pins.
 Follow the step below:
1. Attach the straight portion of the support strap to the
two
front metal O-rings of the Rebarscope®.
2. Attach the other two straps (which are stitched to the
straight portion of the harness) to the new exposed
hinges
of the case.
3. Pull the supplied support strap over your head so that
the
rubber guard is resting on the back of the user’s
neck.

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4. Now adjust the strap accordingly so that the
Rebarscope® is within easy reach and readable. (see
Figure 4)
Figure 4: Rebarscope® Support Strap

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Sensor Probe
The James® Instruments Rebarscope® utilizes the latest in eddy
current sensing technology. The heart of this technology can be
found in the sensor probe which has been specifically designed to
react to the outer surface of metal objects.With this ability, the unit
is able to accurately locate, determine the depth of, and estimate
the size of metal objects within reinforced concrete structures. This
makes the Rebarscope® sensor probe far superior to other
commerciallyavailable rebar location systems.
The Rebarscope® sensing probe is compact, weighing only 1 lb
and
dimensioned at 5”x 2.4”x1.6” and still very tough and durable
for
field application. The sensing probe has been calibrated in our
facility for operation with only the data logger unit it was purchased
with. If a new sensor probe is needed it is recommended to send
the complete unit in for proper calibration. Not calibrating the
sensor
probe and the data logger unit together can cause
unacceptable
location, cover and bar size readings. For further
information
regarding repair and calibration please contact our
office.

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Short / Deep Mode
The Rebarscope® facilitates the analysis of rebar location, cover
and bar sizing; allowing the user to do measurements in short mode
or deep mode. The Rebarscope® also provides the user the ability
to automatically switch between deep and/or short mode.
Note: The single sensing probe operates efficiently in both modes.
When the system is initially turned “on”, the Automatic (RS) mode is
the default setting. To change this, go to the Locate Cover screen.
• Once in the Locate Cover screen, use the up or down arrow keys
on the front panel to highlight the graphic bar .
• When the highlight is on the bar, press the left arrow key to
change between modes. (Note: The letters RS in the upper left
hand corner of the screen indicate auto ranging is “on”.)
• Follow the procedure above to turn off Auto ranging, and to
manually switch between Deep and Short modes as seen on line 1
of this screen.
Figure 5: Locate Cover Screen

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Short mode: Ideal when reinforcement cover ranges from .5” to
3.0”. Locating, determining cover and bar size can all be measured
while in this mode. An error of ± .125” must be accounted for during
measurement of metal bar or pipe location.
Deep mode: Ideal when reinforcement cover ranges from 2.75” to
8”. Locating, determining cover and bar size can all be measured
while in this mode. An error of ± .125” must be accounted for during
measurement of metal bar or pipe location.
Figure 6: Metric and Imperial Graphs for Rebar Ranges

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Locating Ferrous and Non-Ferrous Metals
The Rebarscope® uses eddy current sensing and micro-processing
technology, and is ideal for locating ferrous and non-ferrous metals.
Metals located with ease are the following:
• Imperial and Metric reinforcement bars
• Standard copper pipe
• Standard conduit pipe
• Post tension cable (use Rebar mode)
The Rebarscope® allows the user to locate metals by using two
options on the LCD display.
Option 1 – Graphic Bar Display
The action bar displayed on the second line of the location screen
enables the user to determine when the center of the metal bar/pipe
has been detected. When the sensor probe is directly over the
center of the metal bar/pipe, this bar display will have reached its
highest point. When the sensor probe has passed the center of the
metal bar/pipe, the bar display will decrease in size.
Option 2 – Number Display
This option consists of a numerical output value in brackets
displayed on line 1 of the locate cover screen. The range of this
number is 0 to 4095. As the probe moves toward the rebar/pipe the
number will increase. Then when the probe is over the center of the
rebar/pipe you will see the largest number displayed. As you move
the probe away from the center of the rebar/pipe the number will
begin to decrease.
This technique can also be useful in determining whether short or
deep mode is necessary for proper location, cover, and sizing
analysis.

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Determining Cover
The Rebarscope® allows the operator to easily determine the
concrete cover of rebar. Since the Rebarscope® utilizes eddy
current technology, cover is determined with even more accuracy
than its predecessor.With this, only the bar/pipe is located and no
small particles of metals (such as fly ash) in the concrete can
influence the measurement. The following steps allow for proper
covermeasurements:
Step 1: Choose either Imperial or Metric units on the system menu
screen.
Step 2: Decide whether short or deep mode is necessary for your
testing. If needing to adjust this setting, go to the Locate Cover
screen and follow the steps.
Figure 7: Locate Cover Screen

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Step 3: Using the down arrow key, scroll the highlighted section
down to the bar diameter category. Once this line is highlighted,
use the right or left arrow keys to choose the proper bar diameter.
Figure 8: Choosing Bar Diameter
Step 4: Now, pass the sensing probe on the surface of the test
structure until the smallest cover is displayed on the right hand
corner of the screen.
Step 5: The Rebarscope® allows the user to choose the minimum
cover to analyze with. This feature is referred to as the S min. Using
the up or down arrow key, scroll the highlighter down to the S min
category and use the left or right arrow keys to choose an S min that
ranges from 0.4 - 5.0.
Figure 9: Setting Minimum Cover