Decatur Electronics SVR DUAL User manual

SURFACE VELOCITY RADAR (SVR)™ USER’S MANUAL SURFACE VELOCITY RADAR (SVR)™ USER’S MANUAL
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Decatur Electronics, Inc.
715 Bright Street
Decatur, IL 62522
USA/Canada 800.428.4315
Intl 217.428.4315
Fax [phone]
www.decaturradar.com
Rev. 05/05 Copyright 2001-2005 Decatur Electronics, Inc.
SURFACE VELOCITY RADAR (SVR)™
USER’S MANUAL
Certied ISO 9001

SURFACE VELOCITY RADAR (SVR)™ USER’S MANUAL
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SURFACE VELOCITY RADAR (SVR)™ USER’S MANUAL

SURFACE VELOCITY RADAR (SVR)™ USER’S MANUAL
SURFACE VELOCITY RADAR (SVR)™ USER’S MANUAL SURFACE VELOCITY RADAR (SVR)™ USER’S MANUAL
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WELCOME TO DECATUR ELECTRONICS
Thank you for choosing this Decatur Electronics product—the SVR™, an
advanced surface velocity radar (SVR) device for measuring water surface
velocity. The SVR is extremely valuable for measuring water surface velocity
during high-velocity ows and ood conditions where using contact
measurement instruments poses a risk to safety.
The SVR incorporates many leading features such as cosine error correction
for the vertical and horizontal angle positions of the gun to the target. The
SVR also contains a congurable horizontal cosine able adjustment that may
be used when the angle of the gun is not parallel to the ow of the target.
We urge you to study this manual before using the SVR, so you can maximize
the benets of this sophisticated radar device. If you are as pleased with its
performance as we think you will be, ask your Decatur sales representative
about our other products.
— The management and sta at Decatur Electronics,
the nation’s oldest radar company

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SURFACE VELOCITY RADAR (SVR)™ USER’S MANUAL
TABLE OF CONTENTS
SVR™Features.......................................................... 6
About This Manual ............................................................... 7
1. Quick Start ................................................................................................ 7
1.1 Initial Set Up .............................................. 7
1.1.1 Insert the Batteries ..................................... 7
1.2 Power .................................................................. 8
1.3 Menu Options ....................................................... 8
1.4 Measuring Surface Velocity ................................... 11
1.5 Angle Compensation .................................................. 13
1.5.1 Vertical Angle Compensation .................... 14
1.5.2 Horizontal Angle Compensation .................. 15
2. Components ................................................................ 17
2.1 Display .......................................................................................... 17
2.2 Batteries ............................................................... 17
2.2.1 Removing Batteries ...................................................... 19
2.2.2 Battery Charger .............................................................. 19
2.3 Serial Communications Port ............................ 19
3. Performance Tips ...................................................... 20
3.1 How Radar Works ............................................ 20
3.2 Interference Sources and Remedies ............... 21
3.2.1 Angular Interference (Cosine Eect)........................ 21
3.2.2 Electromagnetic Interference (EMI) ........ 23
3.2.3Feedback Interference ........................... 23
3.2.4 Radio Frequency Interference (RFI) ...... 23
3.2.5 Scanning ................................................. 24
3.2.6 Environmental Factors —Wind, Rain, & Snow ....... 24
4. Care, Cleaning, and Storage ........................................ 25

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5. Specifications ........................................................... 26
5.1 Measurement Specifications ................................... 26
5.2 Factory Default Settings ................................... 26
5.3 Antenna Parameters ......................................... 26
5.4 Voltages ................................................................. 27
5.5 Power Consumption Parameters ........................... 27
6. Legal Requirements .................................................... 28
6.1 FCC Document ............................................... 28
7. Frequently Asked Questions (FAQ) .......................... 29
8. Service ........................................................................ 35
8.1 Warranty ......................................................... 35
8.2 Service Return Procedure ................................ 36
8.3 Maintenance and Repair Record ...................... 37
9. How to Order Additional Products ............................... 38
User Notes ......................................................................... 39
Index ................................................................................... 40

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SURFACE VELOCITY RADAR (SVR)™ USER’S MANUAL
SVR Features
The SVR is a hand-held surface velocity radar (SVR) gun specically designed
to measure the surface velocity of water—great for use in streams and rivers.
The standard package includes:
 • radargunwithsurfacevelocitymeasurementsoftware
 • communicationsport
 • two rechargeable batteries
 • Black&Decker®VersaPak™2-port battery charger
 • user’smanual
 • hardcase
 • certication
 • two-yearfullwarranty.
The SVR operates using Black & Decker®VersaPak™rechargeable batteries,
which are available at hardware stores and Decatur Electronics.
The radar gun features a tilt sensor system, which internally compensates for
the cosine error eect of the vertical (pitch-down) angle of the gun to the
target. It is not necessary to manually set the tilt sensor.
Also, the software compensates for the horizontal (yaw) angle that is created
when the gun is aimed at a target from an angle, which is greater than 10°
from the parallel alignment of the gun to the target.
The SVR also features a data communications port, so it is possible to connect
the gun to external devices such as a PC.

SURFACE VELOCITY RADAR (SVR)™ USER’S MANUAL
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About This Manual
Note the following symbols in this manual.
indicates a warning message about safety precautions.
Please read it carefully.
indicates a helpful tip or precaution to note.
1. Quick Start
1.1 Initial Set Up
The SVR is easy to use. To operate, simply
• chargeandinsertthebatteries
• powerup
• aimatthetarget
• setthehorizontalanglepositionoftheguntotarget
• pullthetrigger,andrecordthevelocity.
1.1.1 Insert the Batteries
Remove the Black & Decker®VersaPak™batteries from their package and
charge them according to the VersaPak™instruction sheet (see section
2.1.2 Battery Charger for more about using the battery charger.) Insert the
batteries into the handle grip by pushing them into the receptacles in the
bottom of the handle until you hear them snap into place.
Figure 1.1.1 Insert the batteries into the handle grip.
* VersaPak™ is a registered trademark of the Black & Decker Company.

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SURFACE VELOCITY RADAR (SVR)™ USER’S MANUAL
1.2 Power
Press and release the POWER button; the unit will immediately
power up. Press and hold the button down for more than one
second to turn o the unit.
Figure 1.2 The SVR display after turning on the power
The SVR has a power save timeout of 5 minutes. If
the gun is left ON for more than 5 minutes without
any buttons pressed or the trigger pulled during that
time, the gun will shut itself o.
1.3 Menu Options
To change a menu option, enter the Menu Mode by pressing the
MODE button. To advance to the next option, press the MODE
button again. To change an option value, press the SELECT button
while the menu option is displaying. The current value, the value
that was last set, is the rst value to display the next time you enter
the menu option. Repeat these steps until you display the desired
value. The radar gun continues to operate in the background while
it is in Menu Mode.
The SVR exits Menu Mode and returns to the main operating mode
if, after 6 seconds, you do not press the MODE or SELECT button.
The menu options are:
Display Function
bL Backlight (on/o)

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Figure 1.3a The mode for backlight, on, and o
Display Function
COS Cosine correction angle for the horizontal
(yaw) angle (the valid range is 0° to 60° in
increments of 5°)
Figure 1.3b The mode for selecting the horizontal (yaw) angle
Display Function
U “Eur” displayed for meters per second.
“USA” displayed for feet per second.
Figure 1.3c The mode for selecting meters per second
or feet per second

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SURFACE VELOCITY RADAR (SVR)™ USER’S MANUAL
Display Function
A Vertical Angle Display. This is used
to verify that the SVR is reading
vertical angle correctly. The
vertical angle may be calibrated
rst putting the gun in a level
position, then pressing the Mode
and Power buttons simultaneously
for two seconds. (The Mode button
must be pressed rst to avoid
shutting o the gun). The display
will very briey change to “CAL”
when the self-calibration has been
performed.
Display Function
SEN Sensitivity Display and Adjustment.
Higher numbers tell the gun to
pickup surface velocity from a
further distance. Lower numbers
reduce the distance. If the
sensitivity is too high the indicated
velocity may be unpredictable and
erratic. The default value should
work well in most situations.