Radiodetection RD1000 Operating instructions

Radiodetection RD1000 Operating instructions

RD1000

Portable Ground Penetrating

Radar System

Operation Manual

l

Issue 1

l

May 2008

Preface

Before you begin

Thank you for your interest in Radiodetection’s RD1000™ ground penetrating radar system.

Please read this operation manual before attempting to use the

RD1000™ system.

Radiodetection products, including this manual, are under continuous development. The information contained within is accurate at time of publication; however the RD1000™, this manual and all its contents are subject to change.

Radiodetection Limited reserves the right to modify the product without notice and some product changes may have taken place after this user manual was published.

Contact your local Radiodetection dealer or visit www.radiodetection.com for the latest information about the

RD1000™, including this manual and other product literature.

Important notices

General

This instrument, or family of instruments, will not be permanently damaged by reasonable electrostatic discharge and has been tested in accordance with IEC 801-2. However, in extreme cases temporary malfunction may occur. If this happens, switch off, wait and switch on again. If the instrument still malfunctions, disconnect the batteries for a few seconds.

Safety

This equipment should be used by fully qualified and trained personnel only.

This equipment is NOT approved for use in areas where hazardous gases may be present.

2 RD1000™ Operation Manual

Training

Radiodetection provides training services for most Radiodetection products. Our qualified instructors will train equipment operators or other personnel at your preferred location or at Radiodetection headquarters.

For more information go to www.radiodetection.com or contact your local Radiodetection representative.

Trademarks

RD1000™ is a trademark of Radiodetection LTD, all rights reserved.

Copyright Statement

This manual is Copyright © 2008 Radiodetection LTD. All rights reserved. Radiodetection LTD is a subsidiary of SPX Corporation.

This manual may not be copied, reproduced or sold in whole or in part without expressed written permission by Radiodetection

Ltd. Please direct all copyright and publishing queries to you local

Radiodetection representative.

RD1000™ Operation Manual 3

Table of contents

Preface

Before you begin

Important notices

General

Safety

Training

Trademarks

Copyright Statement

Section 1 Introduction

1.1 About this manual

1.2 About the RD1000™

Section 2 System Assembly

Section 3 Getting Started

3.1 Using the Display Unit

3.2 System Settings Screen

3.2.1 Scan

3.2.2 Language

3.2.3 Units

3.2.4 Scale

3.2.5 Date

3.2.6 Time

3.2.7 Power Off

3.2.8 System Information

3.3 Scanning Screen

3.4 Locating screen

3.4.1 Locating Cursor

3.4.2 Soil Type

3.4.3 Identifying Air Wave Reflections

3.5 Image Settings Screen

3.5.1 Scan

3.5.2 Clear Image

3.5.3 Color

3

3

2

2

3

6

6

12

12

6

7

15

15

15

16

17

17

18

13

13

13

14

14

15

22

23

23

23

24

2

2

2

3.5.4 Gain

3.5.5 Filter

3.5.6 Depth

3.5.7 Quit

3.6 Changing the Date and Time

3.7 Screen icons

3.7.1 Systems settings menu

3.7.2 Locating screen menu

3.7.4 Date and time menus

Section 4 Surveying Techniques

4.1 Cross and mark

4.2 Limitations

Section 5 Troubleshooting

5.1 Power

5.2 System Communications

5.3 System Overheating

5.4 Display Unit Problem

5.5 Test Line

5.6 Contacting the Vendor for Service

Section 6 Care and Maintenance

6.1 Battery Care

6.2 Cable Care

6.3 Skid Pad

6.4 Odometer

Appendix A

GPR Emissions, Interference and Regulations

FCC Regulations

Part 15 – User Information

Operating Restrictions

FCC Interpretation of Operation Restrictions issued July 12,

2002

FCC Permitted Mode of Usage

GPR Use Coordination

FCC Ground Penetrating Radar Coordination Notice

ETSI Regulations for the EC

36

36

37

37

38

39

39

40

40

35

35

36

40

40

41

41

25

26

27

27

28

29

32

33

34

34

29

30

31

32

42

42

44

44

Section 1 Introduction

1.1 About this manual

This manual provides cable and pipe locators with comprehensive operating instructions for the RD1000™ ground penetrating radar system. Before operating the RD1000™ system it is very important that you read this manual, noting all safety warnings and procedures.

Following is an overview of the RD1000™ System and a brief introduction to RD1000™ and ground penetrating radar technology.

In this rest of this manual you will find assembly instructions

(Section 2), a getting started guide (Section 3) and an introductory guide to cable and pipe surveying techniques (Section 4). Also included is a troubleshooting guide in Section 5.

1.2 About the RD1000™

The RD1000™ is a ground penetrating radar system that allows the user to see almost any underground feature. Unlike a traditional locator, the RD1000™ uses radar technology (specifically in the UHF/VHF frequencies) and produces a visual map with characteristic cone-shaped images. The main advantage of this technology is that the RD1000™ can see non-conductive materials including plastic pipes.

The integrated digital signal processor (DSP) analyzes the resulting image map to give the operator information on depth. The unique ability to see a pipe or cable in its topographical context makes the

RD1000™ ideal for locating and excavating utilities.

6 RD1000™ Operation Manual

Section 2 System Assembly

1.

Open the main box; remove the Accessory Box, Cart

Base, and Sensor Box. Open each box and lay out all the components.

Figure 2.1: system components

2.

Attach the Cart Handle to Cart Base using the Handle Pins.

Ensure the Display Unit Mount is facing upwards.

Figure 2.2: cart assembled

RD1000™ Operation Manual 7

3.

Attach the Sensor to the Cart using the Sensor Support

Straps. Ensure the Sensor is oriented the correct way with the connections toward the back of the Cart. Using the Sensor

Support Straps, adjust the height of the Sensor so it’s 1-2 cm

(1/2 – ¾ inch) above the ground.

Figure 2.3: sensor box installed

8 RD1000™ Operation Manual

4.

Attach the Display Unit to the Display Unit Mount on the

Cart. Depress the flexible clip and slide the Display Unit back far enough so the clip catches and secures it firmly in place. Adjust the angle of the Display Unit by loosening the hand-screws underneath the Display Unit Mount, rotating the

Display Unit to the desired angle and tightening the handscrews. This ensures the Display Unit does not rotate and damage the Display Cable.

Figure 2.4: display unit installed

RD1000™ Operation Manual 9

5.

Attach the Display Cable to the back of the Display Unit with the jackscrews. Connect the other end of the cable to the

Sensor. Ensure the cable is routed correctly; above the lower cross arm on the Cart Handle and under the Battery tray.

Figure 2.5: installing the battery cable

6.

Attach the Odometer cable to the Sensor. It connects to the closest receptacle on the Sensor.

Figure 2.6: installing the odometer cable

10 RD1000™ Operation Manual

7.

Attach the Battery Cable to the Sensor and the Battery. The upper red light on the Display Unit will illuminate indicating that there is power available for the system.

Figure 2.7: powering the sensor box

The system is now ready to use.

RD1000™ Operation Manual 11

Section 3 Getting Started

3.1 Using the Display Unit

The Display Unit has 8 buttons numbered 1 to 8, larger Pause and

Camera buttons as well as buttons to increase and decrease the screen Contrast and Brightness.

Turn on the system by pressing any button on front of the Display

Unit. Both red lights will illuminate and after few seconds, the splash screen and menu will appear.

The menu option on the screen above the button indicates its function.

To operate the system:

1.

2.

3.

The first screen displayed when the system is powered on is the System

Settings Screen. It has options to start scanning or change settings such as language, measurement units, date and time (see

Section 3.2).

Figure 3.1: display unit

To start scanning, press Scan to display the Scanning Screen.

When the scale appears on the right side of the screen, push the cart. The data image scrolls across the screen from the right (see Section 3.3).

Stop and back up to see the Locating Screen (see Section

3.4) to mark the exact position of a target on the ground and to access the menu to estimate its depth.

12 RD1000™ Operation Manual

4.

5.

6.

When you push the cart forward again and reach the point where you originally stopped and backed up, the system will automatically start scanning again. Or press Clear Screen to start fresh.

At any time press the Pause button to change Depth, Color,

Gain etc. using the Image Settings Screen (see Section 3.5) then press Scan (or Pause again) to continue.

If the Display Unit has Compact Flash disk, pressing the

Camera button saves the current screen image to the

Compact Flash. Later, transfer images to a PC for re-plotting and printing.

3.2 System Settings Screen

3.2.1 Scan

Press the Scan button to start scanning (see Section 3.3).

3.2.2 Language

Select the language for the menus. Current options are

English or Icons. This manual generally uses the English menus. See Section 3.7 for a chart showing all the equivalent icons.

Figure 3.2: system settings screen

RD1000™ Operation Manual 13

3.2.3 Units

Units for the Position Axis, Depth Axis and Depth Indicator can be either Meters or Feet.

Figure 3.3: units

3.2.4 Scale

The Scale button toggles to four different Scale options:

1.

Lines means Depth Lines are plotted on the data image to assist with determining the depth of targets (also see Section

3.3).

Figure 3.4: depth lines

2.

Text means Depth Values are plotted in the center of the data image every 8 metres or 26 feet:

Figure 3.5: text depth markers

14 RD1000™ Operation Manual

3.

4.

Both means both Depth

Lines and Values are plotted on the data image:

Off means no Depth Lines and Values are plotted on the data image.

Figure 3.6: text and line depth markers

3.2.5 Date

Opens the Date Screen to change the current date (see Section

3.5). Images are saved with this date.

3.2.6 Time

Opens the Time Screen to change the current date (see Section

3.5). Images are saved with this time.

3.2.7 Power Off

Opens a sub-menu to confirm powering off the system. There is also an option to restore the system to factory default settings.

3.2.8 System Information

The top of the Systems Setting Screen displays the serial number of the GPR sensor, the software version number, the GPR Sensor frequency (in MHz) and the current battery voltage.

RD1000™ Operation Manual 15

3.3 Scanning Screen

After pressing the Scan button, wait a few seconds for the vertical depth scale to appear on the right side of the screen, and then push the Cart forward.

A cross-sectional image of the ground scrolls onto the screen from the right to left. The position is displayed on the horizontal axis at the top while the depth is displayed on the vertical axis. The position and depth axes units are meters or feet depending on the units set in the Systems Setting Screen (Section 3.2).

If the Scale or Both option is selected (Section 3.2), horizontal depth lines appear on the image to assist with determining the depth of targets.

Approximately 16 meters or

50 feet of data is displayed on one screen. If the survey line exceeds this distance the image will scroll off the left side of the screen.

Figure 3.7: scanning screen

To save the current screen image to file, press the Camera button on the Display Unit. The image number appears on the bottom of the screen with a message to press any button to continue.

A message will appear on the screen if there is no Compact Flash card in the Display Unit. Images are only saved when a card is present.

Pressing any of the number buttons on the Display Unit marked 1 to 8 while scanning adds a numbered marker at the current position.

Figure 3.8: number marker

16 RD1000™ Operation Manual

Pressing the Pause button opens the Image Settings Screen to change the current Color Palette, Depth, Filter and Gain (see

Section 3.5).

Stopping and pulling the cart backwards along the same path automatically opens the Locating Screen (See Section 3.4) used to pinpoint the position and depth of a target.

3.4 Locating screen

The Locating Screen is accessed by stopping and pulling the cart backwards while scanning. The cursor moves over the image and menu options appear at the bottom of the screen.

3.4.1 Locating Cursor

The Cursor consists of 3 parts:

Position Indicator

Vertical cross-hair is tied to the odometer and corresponds to the location at the center of the GPR sensor. As the cart is pulled backwards, the Position

Indicator moves to indicate the current location of the cart in the image.

Figure 3.9: locating screen

Depth Indicator

Horizontal cross-hair found at the peak of the soil type indicator arch indicating the depth. The Depth Indicator moves up or down using the Arch Up and Down buttons.

RD1000™ Operation Manual 17

Indicator Arch

Idealized representation of a typical pipe-like target response observed on the GPR image. The width of the arch is controlled by soil type setting. The soil type setting is changed using the Arch buttons. Increasing the soil type makes the indicator arch wider while decreasing the soil type makes it narrower.

3.4.2 Soil Type

To obtain an accurate depth axis and depth estimations of targets in the GPR image, a Soil Type Calibration must be performed. Soil

Type Calibration can be done 3 ways:

1.

2.

3.

Matching the shape of a target arch,

Using a target at a known depth, or,

Using the moisture level of the soil.

Matching a Target Arch

Targets like pipes, cables, buried artefacts, tree roots and rocks generate arch-shaped responses on the GPR image.

Arches occur because GPR energy does not travel into the ground as a pencil-thin beam but more like a 3D cone. Reflections can appear on the record even though the object is not directly below the GPR sensor. Thus, the GPR sensor “sees” the pipe before and after going over top of it and forms an arch-shaped response on the image.

Figure 3.10: matching a target line

18 RD1000™ Operation Manual

Cross long, linear targets like pipes or cables at a 90 degree angle to produce a target arch suitable for the soil type calibration.

The depth estimation of a target will be incorrect if the soil type calibration is done on a target arch produced at an oblique angle

(smaller that 90 degrees).

Figure 3.11: estimating target depth

To determine the Soil Type using a Target Arch:

1.

With a target arch visible on the image, back the cart up until the Position

Indicator is centered on the target arch in the GPR image; preferably one with long tails because this provides the most accurate soil type calibration.

Figure 3.12: position indicator

2.

As you slow down and stop, the Indicator Arch will appear on the data image.

Figure 3.13: indicator arch

RD1000™ Operation Manual 19

3.

Use the Up and Down

Arrows to move the

Indicator Arch shallower or deeper in the GPR image respectively, until it lies over the top of the target arch.

Figure 3.14: indicator arch cont.

4.

Press the Soil Type button and toggle through the five different soil types to find the one that roughly fits the shape of the Indicator Arch to the shape of the Target

Arch.

Figure 3.15: indicator arch cont.

5.

Use the Wide and Narrow

Arch buttons to change the shape of the Indicator Arch to match the shape of the

Target Arch on the GPR image. The depth of the target is indicated on the bottom left.

Figure 3.16: indicator arch cont.

6.

Press the Apply button to save the Soil Type and update the

Depth Axis on the Scanning Screen. The Depth axis can now be used to estimate the depth of targets while scanning in the area.

20 RD1000™ Operation Manual

Target at Known Depth

If there are no suitable arches visible in the image to perform the

Target Arch Matching described above, there may be a target of known depth in the area being scanned.

To determine the Soil Type using a target at known depth:

1.

With the target response visible on the image, use the Up and Down Arrows to move the Depth Indicator (and Indicator

Arch) until it lies on top of the GPR response of the known target.

2.

3.

Use the Wide and Narrow Arch buttons to change the shape of the Indicator Arch until the depth of the target, displayed in red above the menu, is correct.

Once the depth is matched, save the Soil Type value by pressing the Save button.

Soil Moisture

If a good target arch or a target of known depth is not available, the user will have to estimate the Soil Type. The soil type is most strongly affected by water so the soil type options relate to the amount of water in the soil.

Change the soil type by pressing the Soil Moisture button until the option that best describes the soil in the area is displayed. The options are Very Dry, Dry, Moist, Wet and Very Wet Soil.

RD1000™ Operation Manual 21

3.4.3 Identifying Air Wave Reflections

Some arches in the image can be caused by objects that are not in the subsurface, such as posts, fences, overhead wires and even trees.

An important part of understanding the data image is learning to recognize these unwanted “air” targets and differentiate them from the targets in the ground.

One way of identifying air reflections is to use the target arch method described above. However, arches from above-ground objects are wider than objects in the ground and out of the range of the maximum Soil Type.

Therefore, if the widest Indicator Arch is still not wide enough to match the target arch, the target arch is from on object in the air, not the ground.

Figure 3.17: air wave reflections

Figure 3.18: image settings screen

22 RD1000™ Operation Manual

3.5 Image Settings Screen

The Image Settings Screen is accessed by pressing the Pause (||) button while in the Scanning Screen or the Locating Screen. Menu options appear along the bottom of the screen:

Figure 3.19: scan screen

3.5.1 Scan

To exit from the Image Settings

Screen and resume Scanning, press the Scan button or the

Pause (||) button again (to resume). The Scanning Screen returns at the current location with the position information preserved.

If, while paused in the Image Settings Screen, the cart has moved more than a few centimeters, when scanning is restarted, a gap called a Position Break will appear in the image. The position break is also indicated by a message on the bottom of the screen and the

Position Axis along the top of the data image resetting to zero.

3.5.2 Clear Image

Deletes the current data image on the display.

RD1000™ Operation Manual 23

3.5.3 Color

GPR images are displayed in colors corresponding to a color palette. In general, stronger GPR signals appear in stronger colors.

A number of different color palettes are available to display the image. Some color palettes may show the target better than others.

Figure 3.20: color adjustments

24 RD1000™ Operation Manual

3.5.4 Gain

Since GPR signals are absorbed by the material being scanned, deeper targets have weaker signals. Gain acts like an audio volume control, amplifying the signals and making deeper targets appear stronger in the image. The Gain varies from 1 to 9 with 1 being no gain and 9 being the maximum gain.

As the Gain changes, the current image on the display updates so it is not necessary to re-collect an image with a different gain setting.

Use the lowest gain setting that shows the targets. Try to avoid over-gaining as understanding the image may become more difficult.

Figure 3.21: gain adjustments

RD1000™ Operation Manual 25

3.5.5 Filter

The filter has the effect of removing flat-lying reflections in the image and enhancing the dipping reflections and arches usually caused by targets. It can also assist in identifying very shallow targets that might be masked by the strong signals at the top of the image.

The Filter defaults to ON, so if you are looking for a layer or other flat-lying target, turn the Filter OFF.

The image below shows the same scan with the Filter OFF and ON.

Figure 3.22: filter adjustments

26 RD1000™ Operation Manual

3.5.6 Depth

The depth setting is an estimate of the total depth displayed on the

Scanning Screen based on the current Soil Type setting. The depth setting ranges from 1 to 8 meters.

Figure 3.23: reading depth

The system always collects data to a depth of approximately 8 meters but the Depth setting on this menu determines how much of the data is displayed on the screen. It is possible to scan with a

Depth setting of, say 2 meters, pause scanning and then increase the depth setting to re-display the image to look for deeper targets.

3.5.7 Quit

Exits the Scanning and Image Settings Screens and returns to the

Systems Settings Screen.

RD1000™ Operation Manual 27

3.6 Changing the Date and Time

To change the time:

1.

2.

From the System Settings

Screen, select the Date option. The Time option is similar.

Use the Left and Right

Arrow buttons to highlight the number to change in red.

3.

Increase the number using the Up Arrow and decrease the number using the Down

Arrow.

Figure 3.24: time and date adjustment screen

4.

5.

Pressing OK saves the new date or time and exits the screen.

Pressing Cancel exits the screen without saving the date or time.

28 RD1000™ Operation Manual

3.7 Screen icons

3.7.1 Systems settings menu

Scan

English

Units

Scale

Date

Time

Power Off

Def.

RD1000™ Operation Manual 29

3.7.2 Locating screen menu

Clear Image

Very Dry Soil Dry Soil Moist Soil Wet Soil Very Wet

Soil

Apply

3.7.3 Image settings screen menu

Scan

Clear Image

Gain

Filter

Depth

Quit

30 RD1000™ Operation Manual

3.7.4 Date and time menus

Cancel

Ok

RD1000™ Operation Manual 31

Section 4 Surveying Techniques

4.1 Cross and mark

The most common method of locating is cross and mark as you go. This method works well in favourable soils and uncluttered settings. Cross and mark is very similar to the use of traditional current tracking utility detectors. The Cart is moved along sweeps perpendicular to the anticipated utility axis (see figure below). When the GPR sensor crosses the utility, the image shows an arch. The top of the arch is the position of the utility. The depth to the top of the arch is an estimated depth.

By moving the GPR back and forth and marking the ground where the top of the arch is observed, the alignment of the subsurface utility can be traced out as the X’s in the figure indicate.

Figure 4.1: cross and mark surveying

For example, a concrete storm sewer alignment was located under the road in the figure and data images of lines 1, 2 and 3 below.

The target arch visible on each scan clearly identifies the pipe alignment.

Figure 4.2: locating a concrete pipe

32 RD1000™ Operation Manual

Notice that as the pipe gets deeper, the strength of the target arch gets weaker. This is a result of the GPR signal being absorbed as it travels deeper into the subsurface. In all soil types eventually the

GPR signal will be completely absorbed and only the background radio noise in the area will be detected by the GPR sensor. The noise is seen in the image a fuzzy signal like a TV station not properly received. To see the deepest possible targets with a GPR, it is important to have a quiet, highly sensitive system.

4.2 Limitations

GPR is not without its limitations. GPR radio wave signals are absorbed by the ground with some soils (clays, saline) greatly limiting exploration depth. GPR effectiveness is thus site specific and varies greatly from place-to-place. GPR also responds to changes in soil type, density, water content, as well as many other buried objects; making unique identification of the desired target difficult. (i.e. you can not see the individual tree in the middle of the forest).

RD1000™ Operation Manual 33

Section 5 Troubleshooting

The system is designed to minimize user problems; however, all electronic devices are subject to possible failure. The following are troubleshooting hints in the likelihood of occurrence if your system fails to operate.

5.1 Power

The most common problem that can occur while trying to run the system is insufficient power. The battery may be dead, have a low voltage or the fuse may be blown.

If there is enough power to run the Display Unit, the upper red light on the front of the Display Unit will illuminate when the battery is plugged in.

If the battery voltage is less than about 10.2 volts, the Display Unit may not turn on and the upper red light will flash or not illuminate at all.

Check that battery voltage with a voltmeter. Try to do this while the system is still attached to the Cart to get a true measure of the voltage while under load (it will be necessary to open the Cart battery case and connect the voltmeter to the positive and negative battery terminals). If the battery has a low voltage or seems dead, try the system with another battery (if available), or give the battery a good 12-14 hour charge and try running the system again.

If the battery does not charge up to 12 Volts or more, it should be replaced.

Batteries are fused to protect the system. Open the battery case and check that the 10 Amp fuse is OK. If necessary, replace it with one of the spare fuses available inside the battery case.

If the battery seems OK but the system still does not power up, check the battery cable connections and inspect the battery cable for damage.

34 RD1000™ Operation Manual

5.2 System Communications

If the battery is OK and the Display Unit turns on but the GPR sensor does not scan, there may be a communication failure between the Display Unit and the GPR sensor. If an error occurs, an error message will appear. Power Off the system and disconnect the battery.

Make sure the display cable is not damaged; all pins are straight and blow out the connector sockets as small debris may block individual pin connections and disrupt communications. Ensure that the cable connections are tightly secured. Sometimes vibrations cause the cable connections to loosen just a bit and break contact and this can cause errors. Disconnecting the cable and reconnecting it may provide a better contact and solve the problem.

Plug in the battery, turn on the system and try scanning again.

If the battery, Battery Cable and Display Cable are OK, the problem is either a failure of the Display Unit or the GPR sensor. These units have no user-serviceable parts so it will have to the vendor for inspection and possible repair.

5.3 System Overheating

The GPR system is designed to operate to a maximum internal temperature of 70 C or 158 F. In situations of high ambient temperatures or long exposure to direct sun, this maximum internal temperature may be exceeded and cause the system to fail.

If you suspect that the GPR sensor is overheating, shut it off and give it a chance to cool down in a shady location before trying to run it again. Placing a wet cloth on top of the GPR may help in cooling it down.

If the situation is such that the high temperatures or direct sun cannot be avoided, it may be a good idea to put some sort of shade over the GPR sensor.

RD1000™ Operation Manual 35

5.4 Display Unit Problem

While the Display Unit is weatherproof and fairly rugged, it should be handled in much the same way a notebook computer is. If the

Display Unit does not power up, there may be a problem with the

CPU or the storage media. Always make sure that the access port on the top of the display unit is closed and sealed.

5.5 Test Line

One of the best ways of detecting problems with the system is, shortly after receiving the system and getting comfortable with its operation, collect a line of data at a convenient, easily accessible location. The line does not have to be too long but one screen (16 meters or 50 feet) is a good guide. This data line should be saved electronically and perhaps plotted out on paper and dated. The test line could be collected say, every 6 months and, by reviewing the previous data, system problems can be detected early. As well, if there is a suspected problem with the system, this test line could be collected and compared with earlier tests.

5.6 Contacting the Vendor for Service

When returning the Vendor, have the following information available:

1.

GPR sensor Serial Number displayed at the top of the System

Settings Screen.

2.

A brief description of when the error is happening and the operating conditions (temperature, humidity, sunshine, system settings, etc.).

36 RD1000™ Operation Manual

Section 6 Care and Maintenance

6.1 Battery Care

The RD1000 uses a 9-Amp-hour, 12-Volt sealed lead acid battery.

It is fused with a 10 Amp fuse to protect it from short circuit damage.

The battery unit should run the Cart for 6-8 hours before recharging is necessary. If long days of data surveying are typical, a second battery unit may be a useful item.

The battery is strapped onto the cart base and is normally recharged without removing it from the cart. However, the battery can be easily removed for maintenance or for recharging, if required.

If batteries are maintained in a charged condition they will give long life and reliable service. Improper use and lack of maintenance will greatly reduce their life.

Sealed lead acid batteries should NEVER be left in a discharged condition for any period of time. Charge the batteries as soon as possible after use.

Charge the battery at room temperature whenever possible.

The RD1000 has a voltage monitoring circuit that will turn off the unit when the input voltage drops below 10.2 volts.

If a battery has been deeply discharged or left in a discharged condition for some period of time it may not accept charge immediately when it is connected to the charger (The fast charge light will not illuminate). If the fast charge light does not come on within 6 hours the battery should be considered damaged and should be discarded.

Do not assume that a battery that is still charging after 8 hours is nearing the end of its charge cycle. Typical charging time for an empty battery is 12-14 hours from start of fast charge.

RD1000™ Operation Manual 37

Ensure that the batteries are fully charged before storing. If practical, store the batteries in a cool place, 10 o c (a refrigerator is ideal), but make sure the temperature is not likely to drop below

-30 o

C or the electrolyte may freeze and possibly split the case.

6.2 Cable Care

1.

2.

3.

4.

5.

6.

The cable connectors as well as the connectors on the GPR

Sensor and Display Unit need to stay clean and free of dust and moisture. Use a brush or air spray to clean dust, lint and other foreign particles from these connectors.

When the system is not being used, make sure the connections are done up to prevent dust and moisture from collecting inside. If the connectors are exposed, cover them with some sort of dust cap.

Cables are designed to be as tough as practical.

Careless use of cables making them carry loads that they are not designed for can cause internal damage.

Connectors are weak points in any system. With the use of this product in rough, dusty and outdoor environments, users can minimize potential down time if they care for cables and treat connectors with respect.

Cables and connectors are not designed to suspend or tow or otherwise carry the weight of systems. They are part of the electronic circuit and should be treated accordingly. When not in use they should be placed in their storage box.

38 RD1000™ Operation Manual

6.3 Skid Pad

The bottom of the GPR Sensor is covered with one large wearresistant skid pad. The skid pad is designed to take the majority of the abrasive wear. If the pad wears down enough, the less-resistant plastic housing may start to wear. If this occurs, it is best to replace the skid pad. It is easily removed with a screwdriver and a new one can be purchased from the vendor.

6.4 Odometer

The odometer is factory calibrated and does not require maintenance.

RD1000™ Operation Manual 39

Appendix A

GPR Emissions, Interference and Regulations

All governments have regulations on the level of electromagnetic emissions that an electronic apparatus can emit. The objective is to assure that one apparatus or device does not interfere with any other apparatus or device in such a way as to make the other apparatus non-functional.

The manufacturer test their GPR products using independent professional testing houses and comply with latest regulations of the USA, Canada, European Community, and other major jurisdictions on the matter of emissions.

Electronic devices have not always been designed for proper immunity. If a GPR instrument is placed in close proximity to an electronic device, interference may occur. While there have been no substantiated reports of interference to date, if any unusual behavior is observed on nearby devices, test if the disturbance starts and stops when the GPR instrument is turned on and off. If interference is confirmed, stop using the GPR.

Where specific jurisdictions have specific GPR guidelines, these are described below.

FCC Regulations

This device complies with Part 15 of the USA Federal

Communications Commission (FCC) Rules. Operation in the USA is subject to the following two conditions:

1.

this device may not cause harmful interference and

2.

this device must accept any interference received, including interference that may cause undesired operation.

Part 15 – User Information

This equipment has been tested and found to comply with the limits for a Class A digital device, where applicable, and for an ultrawide

40 RD1000™ Operation Manual

bandwidth (UWB) device where applicable, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense.

WARNING

Changes or Modifications not expressly approved by the manufacturer could void the user’s authority to operate the equipment.

Certification of this equipment has been carried out using approved cables and peripheral devices. The use of non-approved or modified cables and peripheral devices constitutes a Change or

Modification outlined in the warning above.

Operating Restrictions

Operation of this device is limited to purposes associated with law enforcement, fire fighting, emergency rescue, scientific research, commercial mining, or construction. Parties operating this equipment must be eligible for licensing under the provisions of

Part 90 of this chapter.

FCC Interpretation of Operation Restrictions issued

July 12, 2002

(FCC Order DA02-1658, paragraph 9)

The regulations contain restrictions on the parties that are eligible to operate imaging systems (See 47 C.F.R. §§15.509(b), 15.511(b), and 15.513(b)). Under the new regulations, GPRs and wall imaging systems may be used only by law enforcement, fire and emergency rescue organizations, by scientific research institutes, by commercial mining companies, and by construction companies.

Since the adoption of the Order, we have received several inquiries from the operators of GPRs and wall imaging systems noting

RD1000™ Operation Manual 41

that these devices often are not operated by the users listed in the regulations but are operated under contract by personnel specifically trained in the operation of these devices. We do not believe that the recent adoption of the UWB rules should disrupt the critical safety services that can be performed effectively only through the use of GPRs and wall imaging systems. We viewed these operating restrictions in the broadest of terms. For example, we believe that the limitation on the use of GPRs and wall imaging systems by construction companies encompasses the inspection of buildings, roadways, bridges and runways even if the inspection finds no damage to the structure and construction does not actually result from the inspection; the intended purpose of the operation of the UWB device is to determine if construction is required.

We also believe that the GPRs and wall imaging systems may be operated for one of the purposes described in the regulations but need not be operated directly by one of the described parties.

For example, a GPR may be operated by a private company investigating forensic evidence for a local police department.

FCC Permitted Mode of Usage

The GPR antenna must be kept on the surface to be in compliance with FCC regulations. Use of the antenna is not permitted if it is lifted off the surface. Use as a through-the-wall imaging device is prohibited.

GPR Use Coordination

FCC regulation 15.525(c) (updated in February 2007) requires users of GPR equipment to coordinate the use of their GPR equipment as described below:

(a) UWB imaging systems require coordination through the FCC before the equipment may be used. The operator shall comply with any constraints on equipment usage resulting from this coordination.

(b) The users of UWB imaging devices shall supply operational areas to the FCC Office of Engineering and Technology, which shall coordinate this information with the Federal Government through the National Telecommunications and Information Administration.

The information provided by the UWB operator shall include the

42 RD1000™ Operation Manual

name, address and other pertinent contact information of the user, the desired geographical area(s) of operation, and the FCC

ID number and other nomenclature of the UWB device. If the imaging device is intended to be used for mobile applications, the geographical area(s) of operation may be the state(s) or county(ies) in which the equipment will be operated. The operator of an imaging system used for fixed operation shall supply a specific geographical location or the address at which the equipment will be operated.

This material shall be submitted to:

Frequency Coordination Branch, OET

Federal Communications Commission

445 12th Street, SW,

Washington, D.C. 20554

Attn: UWB Coordination

The form given on the following page is a suggested format for performing the coordination.

RD1000™ Operation Manual 43

FCC Ground Penetrating Radar Coordination Notice

NAME:

ADDRESS:

CONTACT INFORMATION [CONTACT NAME AND PHONE

NUMBER]:

AREA OF OPERATION [COUNTIES, STATES OR LARGER

AREAS]:

FCC ID: [E.G. QJQ-PE-PRO-TLF-A)]

EQUIPMENT NOMENCLATURE: [E.G. PULSEEKKO PRO TLF-

A]

Send the information to:

Frequency Coordination Branch., OET

Federal Communications Commission

445 12th Street, SW

Washington, D.C. 20554

ATTN: UWB Coordination

Fax: 202-418-1944

INFORMATION PROVIDED IS DEEMED CONFIDENTIAL

44 RD1000™ Operation Manual

ETSI Regulations for the EC

In the European Community (EC), GPR instruments must conform to ETSI (European Technical Standards Institute) standard

EN302066. Details on individual country requirements for licensing are coordinated with this standard. For more information, contact the GPR system vendor.

This GPR product offered for sale in European Community countries or countries adhering to ETSI standards is tested to comply with EN302066.

RD1000™ Operation Manual 45

To see the full range of products and services provided by Radiodetection visit:

www.radiodetection.com

Radiodetection products are under continuous development and are subject to change, we reserve the right to alter or amend any published specification without notice.

RD1000 is a Trademark of Radiodetection Ltd.

Copyright 2008 Radiodetection Limited. All rights reserved.

Radiodetection Ltd. is a subsidiary of SPX Corporation.

Was this manual useful for you? yes no
Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Download PDF

advertisement