3M 2210E User Manual

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Dynatel2210E

Cable Locator

Operators Manual

September 1999

78-8097-6519-7-RevisionB

TABLE OF CONTENTS

 

Introduction ...............................................................................

2

Installing or Replacing the Batteries ........................................

2

Initial Receiver Configuration ..................................................

3

Receiver Battery Test ................................................................

3

Transmitter Battery Test ...........................................................

4

Locating a Buried Cable ...........................................................

4

Transmitter Setup ................................................................

4

Direct Connect Method ......................................................

5

Dyna-CouplerMethod ........................................................

6

Induction Method ................................................................

7

Receiver Setup ....................................................................

8

About Trace Modes .............................................................

9

Selecting Passive Power Frequencies .................................

9

Determining Cable Depth and Current ..............................

10

Locating an Active Duct Probe (ADP) .....................................

10

Determining ADP Depth ....................................................

10

Locating EMS Markers .............................................................

11

Cable or Pair Identification .......................................................

12

Transmitter Setup ................................................................

12

Receiver Setup ....................................................................

12

Pair Identification Receiver Setup ............................................

13

Optional Accessories .................................................................

13

Technical Information ...............................................................

14

Page 1

INTRODUCTION

The 3MDynatel2210E Cable Locator consists of a Transmitter and a Receiver for locating buried cables or Active Duct Probes (sondes). It also can be used to identify cables or pairs using aDyna-Couplerplugged into the Receiver jack. The Transmitter provides two frequencies to accommodate varying factors such as distance, cable type, or soil conditions. The Receiver detects 50 or 60 Hz AC Power signals and low frequency (LF) radio signalsre-radiatedform local broadcast transmitters. It also measures the signal current in a cable and displays its magnitude. The depth of buried cables or sondes may also be displayed.

Note: For more detailed locating instructions and advanced locating techniques, ask your 3M sales representative for a free publication called Cable and Pipe Locating Techniques.

INSTALLING OR REPLACING THE BATTERIES

6 LR14 cells

6 LR6 cells

CAUTION!

Do not connect batteries improperly, charge or dispose of in fire. Batteries may leak or explode and cause personal injury. Always remove batteries when storing the units.

Battery Disposal: Since regulations vary, consult applicable regulations or authorities before disposal.

Page 2

INITIAL RECEIVER CONFIGURATION

Display depth units (inches, feet and inches, or centimeters) may be changed while holding and pressing. For each press, one of three units will display. To change the passive Power frequency, press and holdthen pressto toggle between 50 or 60 Hz as displayed in the lower left corner of the display.

RECEIVER BATTERY TEST

Battery Test

Indicator

Battery Level

Mark

To test the batteries, turn the Receiver on by pressing and holding

.

The bar graph should extend to the right of the battery level mark,

 

otherwise replace the batteries.

 

Note: When batteries are low, the battery test indicatorwill flash.

Page 3

TRANSMITTER BATTERY TEST

To test the Batteries, hold down

and listen to the tone (solid

tone=good; beeping tone=low; no tone=replace batteries).

Note: The battery test indicates battery condition for normal output levels. If the unit resets when the high output level is selected, use the normal output level or replace the batteries.

LOCATING A BURIED CABLE

Transmitter Setup

Note: Key descriptions can be found inside the Transmitter lid.

Perform a battery test and then connect the Transmitter using one of the three methods below to put tracing signal on a cable.

DANGER!

Check for stray voltage before attaching Transmitter. Voltage greater than 240 volts will damage equipment and cause personal injury and death. Follow standard procedures for reducing the voltage.

WARNING!

Potential for electrical shock exists when handling connecting cables while the Transmitter is in the TRACE, FAULT or TONE modes. Turn the Transmitter off before handling connecting cables.

Page 4

Direct Connect Method

Make sure the Transmitter is off. Plug the direct connect cable into the front panel jack. Connect the Black clip to the ground rod. Place the ground rod in the earth perpendicular to the suspected cable path. If necessary, extend the black lead with the Ground Extension Cable. Remove the ground bonding and attach the Red clip to the shield.

Note: Never attach or remove the direct connect cable from the Transmitter front panel jack while the red and black clips are connected to a cable.

Press to turn the unit on and select Continuity Test (solid tone=good ground; beepingtone=usable ground; no tone=poor ground or nofar-endground). Both LEDs light continuously during the continuity test.

Press to apply Tracing signal and select the desired frequency: 577 Hz for direct connect with far-endground; or 33 kHz for direct connect with nofar-endground. LED indicates frequency selection. (This key can also turn the unit on.)

Press to change output level. ChooseNormal output (flashing LED) for locating short to moderate distances using direct connect method. UseHigh output (solid LED) for long distances and deep cables.

Transmitter setup is finished, now go to LOCATING A BURIED CABLE

- Receiver Setup(Page 8).

Page 5

Dyna Coupler Method

Connect the Dyna-Couplerto the Transmitter front panel jack using the coupler cable.

Clamp the Dyna-Coupleraround the cable below any bonds just before the cable enters the earth. The jaws of the coupler must fully close.

Press to apply Tracing signal and select the 33 kHz frequency. LED indicates frequency selection. (This key can also turn the unit on.)

Select high output level by pressing .

Transmitter setup is finished, now go to LOCATING A BURIED CABLE - Receiver Setup (Page 8).

Page 6

Induction Method

Place the transmitter on the ground over the target cable with the lid hinge in line with the cable path.

Press to turn the transmitter on and select the 33 kHz frequency. LED indicates the frequency selection.

For greater tracing range, select high output level by pressing .

Transmitter setup is finished, now go to LOCATING A BURIED CABLE - Receiver Setup (PAGE 8).

Page 7

LOCATING A BURIED CABLE

Receiver Setup

Note: Key descriptions can be found on the side of the Receiver.

Press to turn the Receiver on.

Press to select the 50/60 Hz power frequency (see section on

Selecting Passive Power Frequencies Page 9) or LF for passive locating; otherwise, select the same frequency as the Transmitter.

Note: The Receiver is automatically set to Special Peak mode when LF is selected. No other modes are allowed in LF frequency.

Press to adjust the speaker volume as needed: off, normal, high, orhigh-expanded.Thehigh-expandedsetting causes the audio to cut off as the antenna moves away from the cable.

Note: While tracing cables, keep the Receiver handle in line with the suspected cable path.

To select Special Peak mode, press and hold the press. While in this mode, the peak flag will flash.

Note: Peak or Special Peak mode may requirere-settingthe Receiver gain. Presswhen the bar graph remains either fully open or fully closed.

Page 8

About Trace Modes

Peak: In this mode, as the antenna crosses the cable, the Receiver speaker volume increases to a maximum and the bar graph fills from both sides toward the middle. As the antenna moves off the cable path, the speaker volume decreases and the bar graph opens.

Peak with High-Expanded: While in Peak mode, press to selectHigh-Expanded(the highest setting). Speaker response is cut off as the antenna moves away from the cable.

Special Peak Mode: This mode will increase the signal sensitivity of the Receiver when the signal is too weak for normal tracing. Use special attention when using this mode because it is more susceptible to congestion than the

normal peak mode. To select Special Peak mode, press and hold then press. While in this mode the Peak flag will flash.

Note: While tracing cables in any mode, keep the Receiver handle in line with the suspected cable path.

See section Initial Receiver Configuration (Page 3)to set the power frequency to 50 Hz or 60 Hz. The Receiver can be tuned to locate 3 different harmonics of the chosen power frequency.

H50 Hz orH60 Hz (high harmonic): Best for general locating of passive power.

L50 Hz orL60 Hz (low harmonic): Works best on primary power cables. May be used when high harmonic is weak or erratic.

100 Hz or120 Hz: For locating rectified AC power signals, often found on pipelines using impressed current cathodic protection.

When a Power frequency is selected, the Hz symbol will flash, indicating that alternate frequencies are available. To change the selected power frequency, press and hold then pressto select the next Power frequency.

Page 9