L3 Communications Narda 8950/10 Quick start guide

2010
Narda 8950/10
Stray Voltage Detection System – Operation
and Installation Guide
Rev. 1
IPR2014-00839
Exhibit 2178
Page 1 of 15

L-3 Communications, Narda Safety Test Solutions
Page 2
Narda 8950/10 Stray Voltage Detector
Chapter 1 – Introduction……………………………………………………… 3
Welcome…………………………………………………………………... 3
System Description…………………………………………………….3
Unpacking the System……………………………………………….4
Assembling the System………………………………………………4
Chapter 2 – System Operation……………………………………………….6
Software Controls and Their Functions………………….…10
Logged Data……………………………………………………………..13
Troubleshooting……………………………………………………….14
Replacement Parts List………………………………………………14
Narda Warranty……………………………………………………………………..15
T
Ta ab bl le e o of f C Co on nt te en nt ts s
IPR2014-00839
Exhibit 2178
Page 2 of 15

L-3 Communications, Narda Safety Test Solutions
Page 3
Narda 8950/10 Stray Voltage Detector
Unpacking and Installation
Welcome
Thank you for choosing the Narda Model 8950/10 Stray Voltage Detection System.
This section is designed to help familiarize you with the contents of the system,
assembling the system on a vehicle and performing basic verification testing to insure
the system is operating correctly.
System Description
The Narda Model 8950 is a complete system comprising of a vehicle mount, sensor
and computer running unique software, designed to detect elevated AC voltages that
may be present on conductive objects. The Model 8950/10 was designed and tested
mounted on a common pickup truck and tested at speeds up to 20 mph and proven to
be effective at detecting AC voltages as low as 2 VAC on objects that were 30 feet
away. Narda supplies a laptop computer that gives a user a visual and audible
indication that a set threshold has been exceeded.
NOTE: THIS DEVICE IS INTENDED ONLY FOR USE BY A PASSENGER IN A MOVING VEHICLE.IT
IS NOT RECOMMENDED TO BE USED IN MOVING VEHICLES WITH LESS THAN 2PERSONS.
The supplied software presents data on an easy-to-read graph that simply presents
voltage over time. The user can easily set the detected voltage alarm to a level that
alerts him or her to serious voltage levels. By following the instructions in this manual
the user will be able to complete the important task of “Stray Voltage Detection”.
C
Ch ha ap pt te er r 1 1: :
I
In nt tr ro od du uc ct ti io on n
Unpacking the system
Assembling system
IPR2014-00839
Exhibit 2178
Page 3 of 15

L-3 Communications, Narda Safety Test Solutions
Page 4
Narda 8950/10 Stray Voltage Detector
Unpacking the system
The 8950/10 system is sent in 3 different containers. Container 1 includes
the main mount and sensor enclosure. Container 2 includes the Panasonic
Toughbook computer and the third container includes the sensor,
charger, adapter and cables.
It is recommended that you first install the vehicle mount assembly. Tools
required are a 3/4” and 9/16” socket and large Phillips screwdriver.
Assembling the system
Step 1
Installation of Hitch Support assembly. Place
entire vehicle mount assembly behind the
vehicle, on the ground. Remove hardware
from the side of the hitch support assembly
and slide the assembly in to the two inch
receptacle. Install the hardware only finger
tight at this time. The hitch support can be
mounted in either an up or down
configuration, but in most mid and full sized trucks it can be used
facing upwards.
Step 2
Installation of upper bed mounts.
Carefully swing arms out and around the
end of the truck and position these
above the truck’s tie down socket. The
upper bed mounts are supplied with a
spring loaded toggle bolt that is
designed to hold itself to the truck that
has had its plastic rail covers removed (if required) to access the tie down
sockets. Note that the upper bed mounts present a side that is sloped towards
the middle of the vehicle. Initial adjustment should be snug but still allow the
upper bed mounts to move while the horizontal arms are attached to them.
IPR2014-00839
Exhibit 2178
Page 4 of 15

L-3 Communications, Narda Safety Test Solutions
Page 5
Narda 8950/10 Stray Voltage Detector
Step 3
Adjust horizontal arms to position sensor
platform to near level. Exact position is not
critical. Tighten horizontal arms and hitch
support screws to stabilize entire structure.
Connect fiber optic cables through one of
the upper bed mounts noting color coding
for polarity. Supplied fiber optic cable needs
to be connected to the laptop inside of the
vehicle. It is recommended that the cables
be inserted through a customer drilled hole
and used with a grommet to not damage
the cable, but you can temporarily insert
through windows or door frame, insuring
that cable is not crimped.
Step 4
Inserting Sensor. After charging sensor, insert the sensor into the
weatherproof enclosure. Fiber optic connection is to be orientated towards the
front of the vehicle. Sensor is placed between foam on the top, bottom and
sides of enclosure. Note polarity of cable connection to sensor. Depress
ON/OFF button and verify that light shows green LED. This means sensor is
ready for measurements.
Step 5
Connecting computer. The fiber optic cable that was connected on one end to
the upper bed mount needs to be connected to the laptop computer in the
cab of the vehicle. Although you can route the cable through a window or
door jamb for a short period of time it is highly recommended that a
permanent hole be drilled into the cab (with grommet) of the vehicle so that
the fiber optic cable is not damaged. The cable is marked with a white dot for
what should be on top when the
connection is made to the RS-232 adapter.
The cable is connected to the F.O. to RS-
232 adapter (supplied) and then to the
computers’ COM1 port. With the computer
charged or powered by an inverter in the
vehicle, and with the sensor fully charged –
you are now ready to energize the system
and verify performance.
IPR2014-00839
Exhibit 2178
Page 5 of 15

L-3 Communications, Narda Safety Test Solutions
Page 6
Narda 8950/10 Stray Voltage Detector
Operation and Validation
Software Start-up
Software is started on the laptop computer by double-clicking
the L3 Icon on the desktop.
C
Ch ha ap pt te er r 2 2: : S Sy ys st te em m
O
O
p
pe er ra at ti io on n
 Initialize and understand software
 Logged Data format
 Verify system operation
 Troubleshooting
IPR2014-00839
Exhibit 2178
Page 6 of 15

L-3 Communications, Narda Safety Test Solutions
Page 7
Narda 8950/10 Stray Voltage Detector
The system software presents a visual and audio alarm, if
desired, for any level above 1.0 V/m. Below is the initial
software display.
The left screen displays the controls for your system and the right side displays
the graphical results. The left screen default view is always in a “basic” display.
Move your mouse cursor up to the second menu item Settings and select
“Advanced” from the menu. Now your computer should be displaying the
following:
IPR2014-00839
Exhibit 2178
Page 7 of 15

L-3 Communications, Narda Safety Test Solutions
Page 8
Narda 8950/10 Stray Voltage Detector
Begin displaying field levels by pressing the Bandpass button. Your screen
should now look like this –
IPR2014-00839
Exhibit 2178
Page 8 of 15

L-3 Communications, Narda Safety Test Solutions
Page 9
Narda 8950/10 Stray Voltage Detector
Active readings should be taking place and updating the plot on the right side. If not
re-check the polarity of the cables insuring they are tight and connected correctly.
IPR2014-00839
Exhibit 2178
Page 9 of 15

L-3 Communications, Narda Safety Test Solutions
Page 10
Narda 8950/10 Stray Voltage Detector
Software Controls and Their Functions
Let’s take a closer look at each control, and its function on the Stray Voltage
Sensor Software.
IPR2014-00839
Exhibit 2178
Page 10 of 15