Amprobe UAT-600 Operating Manual

UAT-600 Series

Underground Utilities Locator

UAT-610
UAT-620

User Manual

ENG FRE

SPA

UAT-600 Series

Underground Utilities Locator

UAT-610
UAT-620

User Manual

English

7/2018, 6011184 A
©2018 Amprobe
All rights reserved. Printed in China

Limited Warranty and Limitation of Liability

Your Amprobe product will be free from defects in material and workmanship for one year from the date
of purchase unless local laws require otherwise. This warranty does not cover fuses, disposable batteries or
damage from accident, neglect, misuse, alteration, contamination, or abnormal conditions of operation or
handling. Resellers are not authorized to extend any other warranty on the behalf of Amprobe. To obtain
service during the warranty period, return the product with proof of purchase to an authorized Amprobe
Service Center or to an Amprobe dealer or distributor. See Repair Section for details. THIS WARRANTY IS YOUR
ONLY REMEDY. ALL OTHER WARRANTIES - WHETHER EXPRESS, IMPLIED OR STATUTORY - INCLUDING IMPLIED
WARRANTIES OF FITNESS FOR A PARTICULAR PURPOSE OR MERCHANTABILITY, ARE HEREBY DISCLAIMED.
MANUFACTURER SHALL NOT BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR CONSEQUENTIAL
DAMAGES OR LOSSES, ARISING FROM ANY CAUSE OR THEORY. Since some states or countries do not allow
the exclusion or limitation of an implied warranty or of incidental or consequential damages, this limitation of
liability may not apply to you.

Repair

All Amprobe returned for warranty or non-warranty repair or for calibration should be accompanied by the
following: your name, company’s name, address, telephone number, and proof of purchase. Additionally,
please include a brief description of the problem or the service requested and include the test leads with the
meter. Non-warranty repair or replacement charges should be remitted in the form of a check, a money order,
credit card with expiration date, or a purchase order made payable to Amprobe.

In-warranty Repairs and Replacement – All Countries

Please read the warranty statement and check your battery before requesting repair. During the warranty
period, any defective test tool can be returned to your Amprobe distributor for an exchange for the same
or like product. Please check the “Where to Buy” section on amprobe.com for a list of distributors near you.
Additionally, in the United States and Canada, in-warranty repair and replacement units can also be sent to an
Amprobe Service Center (see address below).

Non-warranty Repairs and Replacement – United States and Canada

Non-warranty repairs in the United States and Canada should be sent to an Amprobe Service Center. Call
Amprobe or inquire at your point of purchase for current repair and replacement rates.

USA: Canada:
Amprobe Amprobe
Everett, WA 98203 Mississauga, ON L4Z 1X9
Tel: 877-AMPROBE (267-7623) Tel: [phone]

Non-warranty Repairs and Replacement – Europe

European non-warranty units can be replaced by your Beha-Amprobe distributor for a nominal charge. Please
check the “Where to Buy” section on beha-amprobe.com for a list of distributors near you.

Beha-Amprobe

Division and reg. trademark of Fluke Corp. (USA)

Germany* United Kingdom The Netherlands - Headquarters**
In den Engematten 14 52 Hurricane Way Science Park Eindhoven 5110
79286 Glottertal Norwich, Norfolk 5692 EC Son
Germany NR6 6JB United Kingdom The Netherlands
Phone: [phone] - 0 Phone: [phone] Phone: [phone]
beha-amprobe.de beha-amprobe.com beha-amprobe.com

*(Correspondence only – no repair or replacement available from this address. European customers please
contact your distributor.)
**single contact address in EEA Fluke Europe BV

UAT-600 Series Underground Utilities Locator

CONTENTS

1. PRECAUTIONS AND SAFETY MEASURES ...................................................................2

2. KIT COMPONENTS .......................................................................................................4

2.1 Your shipping box includes ................................................................................................. 4

2.2 UAT-600-R Receiver Controls and Display .......................................................................... 5

2.3 UAT-600-R Receiver Alerts ................................................................................................... 7

2.4 UAT-600-T Transmitter Controls and Display .....................................................................8

2.5 SC-600 Signal Clamp (included with UAT-620, optional for UAT-610) ..............................10

3. MAIN APPLICATIONS ..................................................................................................11

3.1 General Tracing Techniques for All Applications ................................................................ 11

3.2 Power Mode 50/60 Hz

– Passive Location of Energized Cables and Power Lines ...................................................12

3.3 Radio Mode – Passive Location of Utilities .........................................................................12

3.4 Induction Mode – Locating Utilities .................................................................................... 13

3.5 Direct Test Leads Connection Mode

– Tracing an Individual Pipe or Cable ..................................................................................14

3.6 Signal Clamp Accessory – Tracing an Individual Pipe or Cable ..........................................17

4. SPECIAL APPLICATIONS ..............................................................................................18

4.1 When to Use 8 kHz vs. 33 kHz Frequency .......................................................................... 18

4.2 Locating Non-Metallic Pipes and Sewer Lines ...................................................................18

4.3 Taking Depth and Current Measurements .........................................................................18

4.4 Voltage, Resistance and

Output Current Measurements Using the Transmitter .....................................................19

4.5 Advanced Locating Techniques – Two Person Swap.......................................................... 19

4.6 Locating Faults with the AF-600 A-Frame Accessory ......................................................... 19

5. MAINTENANCE ............................................................................................................20

5.1 Battery Replacement ............................................................................................................ 20

5.2 Fuse Replacement ................................................................................................................. 21

6. SPECIFICATIONS ...........................................................................................................22

1

1. PRECAUTIONS AND SAFETY MEASURES

SYMBOLS

Caution! Refer to the explanation in this manual.





WARNING HAZARDOUS VOLTAGE. Risk of electric shock.

Consult user documentation.



The equipment is protected by double insulation or reinforced insulation.

Earth (Ground).



Fuse.



Battery.



®

Certified by CSA Group to North American safety standards.

Complies with European Directives.



Conforms to relevant South Korean EMC Standards.

Conforms to relevant Australian standards.

This product complies with the WEEE Directive marking requirements. The affixed label indicates
that you must not discard this electrical/electronic product in domestic household waste. Product
Category: With reference to the equipment types in the WEEE Directive Annex I, this product is



classed as category 9 “Monitoring and Control Instrumentation” product. Do not dispose of this
product as unsorted municipal waste.

SAFETY INFORMATION

The product complies with:

• UL/IEC 61010-1, CAN/CSA C22.2 No. 61010-1, Pollution Degree 2, Measurement CAT IV 600 V MAX

• IEC 61010-2-033

• IEC 61010-2-032

• IEC 61010-031 (test leads)

• EMC IEC 61326-1

OVERVOLTAGE CATEGORY lV (CAT IV) is for equipment installed at or near the origin of the electrical supply
to a building, between the building entrance and the main distribution board. Such equipment may include
electricity tariff meters and primary overcurrent protection devices.

CENELEC Directives

The instrument conforms to CENELEC Low-voltage directive 2014/35/EU and Electromagnetic compatibility
directive 2014/30/EU.

2

Warnings: Read Before Using

To avoid the possibility of electric shock or personal injury:

• Use the Product only as specified in this manual or the protection provided by the instrument may be
compromised.

• Avoid working alone so assistance can be rendered.

• Test on a known signal source within the rated voltage range of the Product both before and after use to
ensure the Product is in good working conditions.

• Do not use the Product around explosive gas, vapor, or in damp or wet environments that exceed IP54
rating per IEC 60529.

• Inspect the Product before use and do not use if it appears damaged. Check for cracks or missing plastic.
Pay particular attention to the insulation around the connectors.

• Inspect the test leads before use. Do not use if insulation is damaged or metal is exposed.

• Check the test leads for continuity. Replace damaged test leads before using the Product.

• Do not use the Product if it operates incorrectly. Protection may be impaired. When in doubt, have the
Product serviced.

• Have the Product serviced only by qualified service personnel.

• Use extreme caution when working around bare conductors or bus bars. Contact with the conductor could
result in electric shock.

• Do not hold the Product beyond the tactile barrier.

• Do not apply more than the rated voltage and CAT rating, as marked on the Product, between the
terminals or between any terminal and earth ground.

• Remove test leads from the Product before opening the Product case or battery cover.

• Never operate the Product with the battery cover removed or the case open.

• Use caution when working with voltages above 30 V AC RMS, 42 V AC peak, or 60 V DC. These voltages
pose a shock hazard.

• Do not attempt to connect to any circuit carrying voltage that may exceed the maximum range of the Product.

• Use the proper terminals, functions and ranges for your measurements.

• When using alligator clips, keep fingers behind the finger guards.

• Use only exact fuse replacement and specified replacement parts.

• When making electrical connections to the UAT-600-T Transmitter, connect the black test lead to the ground
before connecting the red test lead to energized circuit; when disconnecting, disconnect the live test lead
before disconnecting the ground test lead.

• To avoid false readings that can lead to electrical shock and/or injury, replace the batteries as soon as the
low battery indicator appears. Check Product operation on a known source before and after use.

• Use only 6x AA batteries for the UAT-600-R Receiver and only 8x D size batteries for the UAT-600-T Transmitter,
properly installed in the battery compartment, to power the Product (see Section 5.1: Battery Replacement).

• When servicing, use only specified user serviceable replacement parts.

• Adhere to local and national safety codes. Individual protective equipment must be used to prevent shock
and arc blast injury where hazardous live conductors are exposed.

• For use by competent persons only.

• Only use the test lead provided with the Product or UL Listed Probe Assembly rated CAT IV 600 V or better.

• Remove the batteries if the Product is not used for an extended period of time, or if stored in temperatures
above 140 °F (60 °C). If the batteries are not removed, battery leakage can damage the Product.

• Follow all battery care from the battery manufacturer.

• Do not use the Product to check for absence of voltage. Please use a voltage tester instead.

3

2. KIT COMPONENTS

2.1 Your shipping box includes:

UAT-610 UAT-620

UAT-600-R Receiver

UAT-600-T Transmitter

CC-UAT-600 Carrying Case

TL-UAT-600 Test Leads Kit*

FP-UAT-600 Replacement Fuse

User Manual

Quick Reference Guide

1.5 V AA (IEC LR6) Batteries (Receiver)

D-Cell Batteries (Transmitter)

SC-600 Signal Clamp

*TL-UAT-600 Test Leads Kit includes:

• Black test lead with detachable black alligator clip

• Red test lead with permanently attached red alligator clip

• Ground stake

Optional Accessories Description

AF-600

BR-600-R

A-Frame cable ground fault finder to pinpoint ground faults where current is
leaking to ground

Rechargeable battery for Receiver

1 1

1 1

1 1

1 1

2 2

1 1

1 1

6 6

8 8

- 1

BR-600-T

EPS-600

TL-600-25M

Rechargeable battery for Transmitter

2-port charger for BR-600-R Receiver and BR-600-T Transmitter batteries

Extension test lead, 80‘ (25 m)

4

2.2 UAT-600-R Receiver Controls and Display

Receiver Controls

1

3
4

2

1 Light Sensor

2

Speaker

LCD Display (high-contrast, sunlight-optimized)

3

Keypad

4

Battery Compartment

5

5

6

7 8 9 10

6

Power On/Off

7

Volume/Depth

• Volume – Press momentarily to change between mute, low, med and hi volume levels.

• Depth Measurement – Press and hold (> 2 seconds) until depth measurement indication
appears on the screen.

/ : displays sensitivity adjustment on the main screen and for up/down selection in menu screen.

8

9

Hz

: Press momentarily to toggle between available frequency options.

8 kHz 8 kHz Active mode

33 kHz 33 kHz Active mode

50 Hz / 60 Hz Power mode (50 or 60 Hz)

Radio Radio mode

10

Enter/Menu – Press momentarily to enter Receiver settings menu.

: press for 2 seconds to turn the Receiver ON/OFF.

:

5

Receiver Display

The Receiver display features a high-contrast, sunlight-optimized black and white LCD screen. It also has an
auto-backlight feature that activates in dark areas for optimized viewing.

32

4

500

8

5

1 Speaker Volume
2

Locate Mode Indicator
Signal Level – Peak Indicator

3

Signal Level – Number Display

4

(0-999 relates to 0-99.9%)
Battery Status Indicator

5

Signal Locating Frequency

6
7

Left-Right Arrows

8

Signal Level – Bar Graph
Sensitivity Setting Indicator

9

1

7 96

Left-Right Arrows

These arrows indicate distance from the position of the cable. Both left and right arrows will appear when
exactly above the cable.

A solid arrow indicates that you are very close to or at the cable location.

A heavily shaded arrow indicates that you are approaching the cable location.

A lightly shaded arrow indicates that you are far from the cable location.

Receiver Setup

Set-up the Receiver before use by switching the unit on and pressing
the “ENTER/MENU” button. The Settings Menu display will appear.

• Use the “

• Press “ENTER” to change the setting of a feature.

• To exit, scroll down to “Exit” and press “ENTER”.

From the Settings Menu, it is possible to select:

1. Antenna configuration –

2. Measurements – Imperial (0 '00") or Metric (0.00 m)

3. Locating frequency for Power Mode – 50 Hz or 60 Hz

Note: Some selections may not be available in all modes. If not available, the icon will be replaced by a

/ ” buttons to scroll up and down the menu.

Peak or Null

0.00m 0’00’’

50Hz 60Hz

Exit

Enter

——.

Antenna Configurations

Peak signal with left/right arrows. This configuration is satisfactory for general
purpose locating.

Null signal with left/right arrows. This configuration gives a sharp Null signal over
the line but is less accurate than when in Peak Mode. Is useful for tracing long lines
as the sharp Null signal is easy to trace.

6

Using the Null Mode

To select Null Mode, switch the unit on and press “ENTER” to access the Settings Menu.
Select and exit the Settings Menu. The bar graph will now show a minimum signal over the line.
The left/right arrows will also indicate the position of the line.

8kHz

33kHz

50Hz

Radio

999

100

33kHz

Radio

8kHz

50Hz

999

33kHz

Radio

8kHz

50Hz

999

100

33kHz

Radio

8kHz

50Hz

Note: Use the Null Mode with caution as it is not as accurate as Peak Mode. The Null Mode is useful in
detecting the approximate position of a line when tracing over a long distance.

2.3 UAT-600-R Receiver Alerts

Screen Alerts

These alerts appear to the right-hand side of the screen and can appear at any time.

999

Service

Battery low

Signal

overload

Battery very

low

Indicates that the unit is not calibrated.
This is usually a factory setting. Service
should be contacted.

501

Indicates less than 10% battery
remaining.

Indicates that the signal is too large to
process correctly. No damage will occur to
the electronics, but measurements will be
affected. This condition is very unusual.

When this icon appears the battery voltage
is so low that it is not possible to operate
the locator. Replace or recharge batteries to
continue.

7

Depth Measurement Related Alerts

ENTER

0

mA

mA

These alerts are associated with depth measurements and only appear within the depth pop-up screen section.

8kHz

33kHz

50Hz

Radio

Depth Related Alerts

Not possible to compute depth because the signal is too noisy,
too weak or too strong.

Signal Abnormal

Not possible to compute depth because of a strong signal
radiating from above (i.e., an overhead cable).

Overhead Signal

The unit has detected a shallow utility (less than 4 inches).
Caution is required when excavating.

Shallow Utility

2.4 UAT-600-T Transmitter Controls and Display

Transmitter Controls

1

2

43

5

457

1

Display

2

Power ON/OFF

Transmitter ON/OFF. Indication shows up on the screen.

3

Up/Down (

or decrease signal strength on main screen, up/down
selection of functions in menu screen; Increase/decreases
volume and brightness in submenu screens.

4

Frequency Selection (

between available frequency options:

8 kHz 8 kHz Active mode

33 kHz 33 kHz Active mode

A-Low A-Frame mode low signal

A-Hi A-Frame mode high signal

5

ENTER/MENU: Press momentarily to enter Receiver

settings menu.

: press for 2 seconds to turn the

/ multifunction buttons): increase

): press momentarily to toggle

8

1 Terminals for direct connection and signal clamp
2

Output protection fuse
Hazardous voltage indicator (over 30 V)

3

Note: Do not use the Transmitter to check for absence

of voltage. Please use a voltage tester instead.

1

Transmitter Display

2

Tx

78

Transmitter Settings Menu Functions

To enter the settings menu, press “ENTER”. Use the “ / ” buttons to scroll up and down through the
available options.

Output Current: This function is only available when test leads
are connected. Refer to the Direct Test Leads Connection Mode
section 3.5 to properly connect the test leads. The reading
indicates a signal output current. If this value is zero, or close to
zero, make sure a good connection is made to a target line.

3

2

31

4

1 Speaker Volume
2

Output Hazardous Voltage (over 30 V)

3

Signal Output Level
Battery Indicator

4

5

5

Locating Mode
Menu

6

6

7

Gain Setting Reminder

8

Frequency Selection

100mA

ENTER

Voltage Out/In: This function is only available when test leads
are connected. Refer to the Direct Test Leads Connection Mode
section 3.5 to properly connect the test leads. The top value
indicates the output voltage of the Transmitter and the bottom

value
the Transmitter.

indicates the voltage on the line that is connected to

9

23V, 8KHz

0V

ENTER

ENTER

Resistance: This function is only available when test leads are
connected to de-energized target line. Refer to the Direct Test
Leads Connection Mode section 3.5 to properly connect the test
leads. The indicated value is the resistance of the line connected
to the Transmitter. The maximum measured value is 999 kΩ. The >
symbol indicates that the measured value is greater than 999 kΩ.

999 kΩ

ENTER

Speaker Volume: Use “
then press “ENTER”. Use “

the volume. Press “ENTER” to exit the speaker menu.

Contrast: Use “
icon then press “ENTER”. Use “

decrease the contrast. Press “ENTER” to exit the contrast menu.

/ ” buttons to highlight the speaker

/ ” buttons to increase/decrease

/ ” buttons to highlight the contrast

/ ” buttons to increase/

mA

Ω

2.5 SC-600 Signal Clamp (included with UAT-620, optional for UAT-610)

In many situations, it is either not possible to gain access to a
cable for making an electrical contact or it is not safe to do so.
The Signal Clamp accessory provides an efficient and safe method
of applying a locate signal to a cable, enabling the Transmitter to
induce a signal through the insulation into the wires or pipes. The
clamp works on low impedance closed circuits only.

ENTER

50

ENTER

10

3. MAIN APPLICATIONS

Application Receiver setting Transmitter Setting Note

Locating energized
50/60 Hz cables
carrying current

Identifying location
all metallic utilities:
pipes*, energized and
de-energized cables

Tracing individual
pipes* or cable
(energized or
de-energized)

Fault locating Use A-Frame

Power Mode

50 Hz or 60 Hz

Radio Mode

33 kHz

8 kHz or 33 kHz

No Transmitter Needed

Induction Mode

Direct test lead connection

Clamp

Direct test lead connection,

A-Lo or A-Hi

*Tracing of non-metallic pipes and conduits is possible after inserting metal fish tape or cable

3.1 General Tracing Techniques for All Applications

Receiver Locating

1. Turn the Receiver on by pressing the power button for two seconds. Select the desired locating frequency.
Hold the Receiver vertically.

2. Adjust the sensitivity, using the “
movement. The sensitivity control should be at, or close to, maximum sensitivity.

/ ” buttons so that the bar graph reading just begins to show some

3. Keeping the Receiver vertical and in front of your body, walk across the area to be checked, then follow in a
grid pattern.

Note that there will be no sound from the speaker until the meter reading is above full scale approximately 10%.

Note that objects perpendicular to the receiver will not be detected (white objects in drawings A and B). The
Receiver will detect objects that are parallel or under angle (gray objects in drawings A and B). After performing
the initial grid search as shown in drawing A, repeat grid search at 90 degrees as shown in drawing B.

Receiver will detect signal

from any energized 50/60 Hz

cable carrying current

Section 3.2

Receiver will detect

multiple utilities

conducting the signal

Section 3.3 & 3.4

Receiver will detect

signal only from individual

cable/pipe connected to

the Transmitter

Section 3.5 & 3.6

A-Frame will pinpoint the

place of the fault

Section 4.6

B

A

A

Plan View

4. If at any time the meter reading starts to increase, carefully move the locator forward and back, left to
right to detect the maximum signal. Use the bar graph to help confirm the correct position. If the bar graph
exceeds the maximum value, adjust the sensitivity to bring the reading back within the limits of the bar graph
using “

/ ” buttons.

11

If the reading is off scale (too great or too small), then pressing the “
adjust the sensitivity to bring the meter deflection to 50%.

5. Rotate the Receiver on its axis to obtain the maximum signal. This indicates that the Receiver is directly over
the line and aligned with the direction of the cable. The direction can also be verified by rotating until the
smallest signal is detected – the Receiver is then perpendicular with the cable/pipe.

100 999 100 999

6. Walk along the path of the cable and trace it by moving the Receiver left to right to find the highest signal.

/

” buttons together will automatically

3.2 Power Mode 50/60 Hz – Passive Location of Energized Cables and Power Lines

Power signals are created by mains power running in the supply cables. These signals are 50 or 60 Hz depending
on the region (for example, Europe has 50 Hz power and the United States has 60 Hz power). This frequency can
be adjusted on the Receiver.

When electrical power is distributed throughout the network, some of the power finds its way back to the power
station via the ground. These stray currents can jump onto pipes and cables and also create power signals.

There must be enough electrical current flowing to create a detectable signal. For instance, a live cable that is not
in use may not radiate a detectable signal. A very well balanced cable (exactly the same current flowing in live
and neutral) will cancel out and may not create a signal. In practice this is unusual as there are usually enough
imbalances in the cable to create a good detectable signal.

1. Turn the Receiver on by pressing the power button for two seconds.

2. Press “
Hz refer to UAT-600-R Receiver Controls and Display section 2.2.

3. Follow the steps as described in the Receiver Locating section 3.1.

” button repeatedly until the correct frequency is selected. To change frequency between 50 or 60

3.3 Radio Mode – Passive Location of Utilities

Radio signals are created by low frequency radio transmitter
and are used for broadcasting and communications. They are
positioned throughout the world. As the frequencies are very
low, the signals tend to penetrate and hug the curvature of the
earth. When the signals cross a long conductor such as a pipe or
cable, the signals are re-radiated. It is these re-radiated signals
that can be detected by Radio Mode.

Locating radio signals is very similar to detecting power signals
as they are both passive. With the Radio Mode method, you will
detect metallic utilities, such as pipes, as well as energized and
de-energized cables. Tracing of non-metallic pipes and conduits
will be possible after inserting metal fish tape or cable.

12

510

1. Turn the Receiver on by pressing the power button for two seconds.

2. Press the “

3. Follow the steps as described in the

The Left/Right arrows are not active during passive location, such as in Power or Radio modes.

” button repeatedly until Radio is selected.

Receiver Locating

section 3.1.

3.4 Induction Mode – Locating Utilities

Induction Mode is particularly useful for identifying the location of multiple buried utilities before digging.
Induction Mode can be also used for tracing individual cables where there is no access to the line to connect
test leads or a clamp. However, this method may not be reliable if adjacent lines are present because the signal
will be also applied to these lines.

Without the test leads or signal clamp connected to the Transmitter, the Transmitter will automatically start to
radiate a signal around it using an internal antenna. These signals will penetrate the ground and couple onto
buried lines. The signal will then travel along the line which can be detected with the Receiver.

With the Induction Mode method, you will detect metallic utilities, such as pipes, as well as energized and de-energized
cables. Tracing of non-metallic pipes and conduits will be possible after inserting metal fish tape or cable.

Induction Mode – Setting Up the Transmitter

When using Induction Mode, place the Transmitter at least 65 feet (20 m) away from any structure such as
building or a tower to avoid signal interference. Before tracing, take a visual inspection of the area looking for
clues were the buried utility might be present, such as transformers, manholes, street or parking lamps, etc.

The signal will radiate around the Transmitter as well as below it, so it is recommended that when applying a
signal using Induction Mode, a distance of at least 65 feet (20 m) is kept from the Transmitter when pinpointing or
taking depth readings. While locating closer than 65 feet is possible, the operator should be aware that the signal
directly received from the Transmitter may be strong enough to influence the results.

> 65 ft (20 m)

65 ft (20m)

Avoid placing the Transmitter over metallic manhole covers as this will severely reduce the effectiveness of the
Transmitter, and in extreme cases, cause damage to the Transmitter’s circuitry.

1. Turn the Transmitter on by pressing the power button for two seconds.

2. Place the Transmitter over the suspected location of the line, positioning it so that it is along the line.

13

3. Press the “ / ” buttons to set the output to level one.
Increase the level if the resulting signal strength is poor.
Increasing the signal unnecessarily may result in the signal
being induced into unwanted lines.

Induction Mode – Locating with the Receiver

1. Turn the Receiver on by pressing the power button for two seconds.

2. Press “ ” button repeatedly until 33 kHz is selected.

3. Follow the steps as described in the Receiver Locating
section 3.1, using the Left/Right arrow indicators to quickly
assess location of the wire.

4. Optionally measure the depth of the wire. Refer to the
Taking Depth and Current Measurements section 4.3
for details.

For better accuracy, after the initial location of a utility is
detected, move the Transmitter directly over it in case it was
not placed precisely in the beginning of the search.

Where the signal is distorted, the arrows may indicate a different target position than the largest bar graph
reading. In this situation, always use the bar graph to pinpoint the line as it is influenced less than the Left/
Right arrows in a distorted signal field.

500

3.5 Direct Test Leads Connection Mode – Tracing an Individual Pipe or Cable

Direct connection with test leads is the most reliable method to trace individual cable or a pipe.

WARNING

• Only authorized personnel should make connections to cables.

• The Transmitter can be connected to energized wires up to CAT IV 600 V and any de-energized wire or pipe.

• Do not touch metal parts of the connection clips when connecting to the line or when the Transmitter is on
as they may exceed 30 V rms.

• For shielded cables, always connect to the sheath of that cable. The sheath will stop the tracing signal if the
Transmitter is connected to one the internal wires.

14

IMPORTANT NOTICE, PLEASE READ BEFORE TRACING

Avoiding signal cancellation problems with a separate ground connection

The signal generated by the Transmitter creates an electromagnetic field around the wire. This field is what is
detectable by the Receiver. The clearer this signal, the easier it is to trace the wire.

If Transmitter is connected to two adjacent wires on the same circuit (for example, hot and neutral wires
on a Romax cable), the signal travels in one direction through the first wire and then returns (in opposite
direction) through the second. This causes the creation of two electromagnetic fields around each wire with
opposite direction. These opposing fields will partially or completely cancel each other out, making wire
tracing difficult if not impossible.

100

To avoid the cancellation effect, a separate ground connection method should be used. The red test lead of
the Transmitter should be connected to the hot wire of the circuit you wish to trace, and the green lead to a
separate ground, such as water pipe, ground stake, metal grounded structure of the building, or outlet ground
connection of an outlet on a different circuit. It is important to understand that an acceptable separate ground
is NOT the grounding terminal of any receptacle on the same circuit as the wire you wish to trace. If hot wire is
Energized and the Transmitter is properly connected to a separate ground, the red LED on the Transmitter will
light up. The separate ground connection creates maximum signal strength because the electromagnetic field
created around the hot wire is not being cancelled by a signal on the return path flowing along an adjacent
wire (hot or neutral) in the opposite direction, but rather through the separate ground circuit.

8kHz

33kHz

50Hz

Radio

999

15

Direct Test Leads Connection Mode – Setting Up the Transmitter

1. Turn the Transmitter on by pressing the power button for two seconds.

2. Connect the black and red test leads to the Transmitter inputs. The Transmitter will switch automatically to
Direct Connection Mode and the display will show the direct connection icon

3. Insert the ground stake into the ground a few meters perpendicular to the line. Connect the black lead to
the ground stake with an alligator clip.

4. Connect the red test lead to the target line. If line is energized above 30 V the red warning LED will illuminate.

5. Press the
Refer to section 4.1 When to Use 8 kHz vs. 33 kHz Frequency for more information. Frequencies “A-LO”
and “A-Hi” are used with optional A-Frame cable ground fault finder accessory used to pinpoint ground
faults and are described later in the manual.

6. Press the “
is poor. Increasing the signal unnecessarily may result in the signal “bleeding off” onto other services and
creating misleading “ghost” signals. It will also drain more power from the battery.

Note: When connected, the Transmitter will emit a beep tone. The better the connection to the line and
ground, the faster the beep tone will be. Check for a good connection by disconnecting and then reconnecting
the red lead. It is also possible to check the signal current being supplied by the Transmitter by entering the
Settings Menu and selecting the mA option.

Things that can affect the quality of connection are a rusty pipe connection point (clean the connection area
with a wire brush) or poor grounding. To improve the connection quality due to poor grounding, try inserting
the stake into damp ground. If necessary, dampen the surrounding ground with water. If grounding is still an
issue, try connecting test lead to a manhole cover surround. Avoid connecting to fence railings as these may
create return signal currents along the fencing that will interfere with the locating signal.

Note: If the signal level bars do not fill, this indicates that the impedance of the line is limiting the current
output. Increasing the output beyond this point will not increase the signal. If more signal is required, check
the quality of the connection to the line and ground.

When connecting to large diameter pipes and cables, it is sometimes not possible to find a suitable projection
to apply the alligator clip. If the material is ferrous, use a magnet to make contact to the line and then attach
the alligator clip to a magnet. For example: making a connection to a street lighting circuit. Usually it is
practice to connect the sheath of a lighting cable to the metallic inspection cover of a street lamp. Making a
connection to the inspection plate will induce a signal to the cable via the plate and sheath. Usually, there is
no projection on the plate on which to clip so using a magnet on the plate provides a suitable clipping point.

button repeatedly to select 8 kHz frequency (preferred for most tracing situations) or 33 kHz.

/ ” buttons to set the output to level one. Increase the level if the resulting signal strength

.

Direct Test Leads Connection Mode – Locating with the Receiver

1. Turn the Receiver on by pressing the power button for two
seconds.

2. Match the frequency of the Transmitter by pressing the
“

” button repeatedly. Select either 8 kHz or 33 kHz

depending on the Transmitter setup.

3. Follow the steps as described in the Receiver Locating section 3.1.

4. Use the Left/Right arrow indicators to quickly assess location of
the wire.

5. Optionally measure the depth of the wire. Refer to the Taking
Depth and Current Measurements section 4.3 for details.

16

500

3.6 Signal Clamp Accessory – Tracing an Individual Pipe or Cable

500

In many situations, it is either not possible to gain access to a cable for making an electrical contact or it is not
safe to do so. The Signal Clamp provides an efficient and safe method of applying a locate signal to a cable.

When using the Signal Clamp, it is best if both ends of the target cable are grounded to enable the current to
flow. When applying a clamp close to a grounding point where multiple grounds or a grounding bus exists,
ensure that the clamp is placed around the target line and not to the ground bus/other grounds to reduce the
effects of the transmitted signal also being applied to an unwanted line.

Signal Clamp Accessory – Setting Up the Transmitter

1. Turn the Transmitter on by pressing the power button for two seconds.

2. Connect the black and red test leads of the Signal Clamp to the Transmitter inputs. The Transmitter will
switch automatically to the Clamp Mode and the display will show the clamp icon

3. Clamp the Signal Clamp around the target line.

4. Press the
Refer to section 4.1 When to Use 8 kHz vs. 33 kHz Frequency for more information. Frequencies “A-LO”
and “A-Hi” are used for cable sheath ground fault locating and is described later in the manual.

5. Press the “
poor. Increasing the signal unnecessarily may result in the signal “bleeding off” onto other services and
creating misleading “ghost” signals. It will also drain more power from the battery.

button repeatedly to select 8 kHz frequency (preferred for most tracing situations) or 33 kHz.

/ ” buttons to set the output to level one. Increase the level if resulting signal strength is

.

Signal Clamp Accessory – Locating with the Receiver

1. Turn the Receiver on by pressing the power button for
two seconds.

2. Match the frequency of the Transmitter by pressing the
“

” button repeatedly. Select either 8 kHz or 33 kHz

depending on the Transmitter setup.

3. Follow the steps as described in the Receiver Locating
section 3.1.

4. Use the Left/Right arrow indicators to quickly assess location
of the wire.

5. Optionally measure the depth of the wire. Refer to the
Taking Depth and Current Measurements section 4.3 for details.

500

17

4. SPECIAL APPLICATIONS

4.1. When to Use 8 kHz vs. 33 kHz Frequency

As a general rule, 8 kHz will provide the best compromise between clarity of signal and effects of “bleed off” to
other services. However, there are times when the higher 33 kHz frequency will be beneficial:

1. Locating pot ended cables: Pot ended cables are generally not grounded. This means that the signal will
not readily travel to the pot end. Using a higher frequency will encourage signal current to flow.

2. Small diameter cables: Higher frequencies tend to flow better on small diameter cables, although the rule
“first try 8 kHz” still applies.

3. Locating old cast iron pipes: These pipes tend to have mechanical connections between sections which rust
over time and prevent an electrical connection between pipe sections. The 33 kHz signal will tend to jump
across these joints and continue down the line.

4. Poorly grounded cables: Generally, higher frequencies will travel along a poorly grounded cable better than
lower frequencies.

4.2. Locating Non-Metallic Pipes and Sewer Lines

The UAT-600 locator can indirectly trace non-metallic conduits and pipes.

1. Insert fish tape or wire inside the conduit or pipe. For sewer lines, use the sewer drain cleaning machine to
insert a cleaning cable.

2. Follow steps as described in the Direct Test Leads Connection Mode – Tracing an Individual Pipe or Cable
section 3.5. Connect the red test lead to the fish tape or the drain cable.

The Receiver will pick up the signal conducted by the fish tape or wire, indicating the location of the non-metallic pipe.

4.3. Taking Depth and Current Measurements

Depth and current measurements are only available when the
Receiver is set to 8 kHz or 33 kHz frequency. The mode is NOT
available in 50/60 Hz or Radio Modes.

To take a depth and current measurement, first pinpoint the
position of the line. Place the tip of the Receiver on the ground
making sure it is vertical and across the line. Press and hold the

“ ” button until the screen changes to display a dialog box.
The current measurement feature is useful for confirming that

the detected signal is radiating from the traced line. If the signal
is “bleeding off” onto other services, the resulting signals will
generally be less than that of the originating signal. However,
care should be taken as the signal current will gradually reduce over the length of the line. A sudden drop in
current over distance indicates that either:

1. There is a ground fault on the line which is shunting signal to ground.

2. There is a “T” off from the mainline.

3. The operator has migrated from the connected line to a line which has some signal that has bled off from
the main line.

8kHz

33kHz

50Hz

Radio

Checking for depth errors due to signal distortion

One way to determine if the depth measurement is likely to have been affected by distortion is to take a depth
reading at ground level, then raise the Receiver a known distance off the ground (such as one foot). Retake
the depth reading at the new depth and confirm that the depth has increased by this amount. If the depth has
changed by something other than the actual change, then the readings should be treated as suspect.

Distorted signals will cause the located line position to be displaced from the actual position. The errors are
more pronounced using the arrows in Null Mode than the Peak Mode bar graph. Hence, if the arrow/null
position and peak bar graph position indicate differently, the signal likely distorted and the readings should be
treated with caution.

262

3’11”

3.45mA

WARNING
Never mechanically dig over the path of a buried pipe or cable. Always dig carefully.

18

4.4. Voltage, Resistance and Output Current Measurements Using the Transmitter

Refer to Page 9 Transmitter Settings Menu Functions for details.

4.5. Advanced Locating Techniques – Two Person Swap

1. Set up the Transmitter as described in the Induction Mode – Locating Utilities section 3.4.

2. Turn the Receiver on by pressing the power button for two seconds and select 33 kHz frequency by pressing

button.

3. Select the area to be checked. One person holds the Transmitter with the handle in line with the direction of
movement and the other holds the Receiver (as shown below).

4. Stand at least 15 feet (5 m) apart holding the equipment as below, with the Transmitter and Receiver in line
with the direction of movement.

5. Adjust the sensitivity of the Receiver so that the meter reads approximately 20% signal strength.

6. Walk slowly across the site keeping parallel with each other. As a service is approached, the signal level on
the Receiver will increase. When the signal is at a maximum, stop the Transmitter and place it on the ground.
Then pinpoint the position of the service with the Receiver as described in the Receiver Locating section 3.1.
Mark this position and plot the route across the site if necessary.

7. Continue to the sweep across the site and then, if possible, repeat the process at 90 degrees to the sweep
already completed.

100

15 ft (5m)

8kHz

33kHz

50Hz

Radio

999

4.6. Locating Faults with the AF-600 A-Frame Accessory

The AF-600 A-Frame cable ground fault finder is an optional accessory specifically designed for the Amprobe
UAT-600 series. In combination with the Transmitter, it will pinpoint the place where a cable metal conductor
(either a sheath or a metallic conductor of the wire) touches the ground. It can also detect other conductors to

ground faults such as pipeline coating defects. Refer to the AF-600 A-Frame user manual for full instructions.

19

5. MAINTENANCE

8 x D Cell batteries

5.1. Battery Replacement

Use a flat screw driver to open the battery door.

6 x AA Batteries

UAT-600-T

UAT-600-R

20

AF-600

5.2. Fuse Replacement

Use a flat screw driver to open the fuse door.

6 x AA Batteries

Fuse
FF 500 mA, 1000 V,
IR 30 kA, Φ6.3×32 mm



Use only exact fuse replacement.

21

6. SPECIFICATIONS

UAT-600-T Transmitter

Operating voltage 0 to 600 V

Energized circuit
Induction mode: 33 kHz (32,768 Hz)
Direct connection modes: 8 kHz (8,192 Hz) and 33 kHz (32,768 Hz)

Transmitting frequency

Transmitting mode power
output

Output voltage Max. 50 V rms

Output current Max. 250 mA rms, constant current in 5 steps

Mains voltage measurement

Resistance measurement
(De-energized circuit)

Output hazardous voltage
warning

Mains hazardous voltage
warning

Audio indication Fast beeps showing the better signal is applied

Clamp mode: 8 kHz (8,192Hz) / 33 kHz (32,768Hz)
De-Energized circuit

Induction mode: 33 kHz (32,768 Hz)
Direct connection modes: 8 kHz (8,192 Hz), 33 kHz (32,768 Hz), A-Lo/A-Hi
A-Frame: 8 kHz (8,192 Hz)
Clamp mode: 8 kHz (8,192Hz) / 33 kHz (32,768Hz)

Max. 3 watts

0 V to 600 V, 50 Hz to 60 Hz
Resolution: 1 V
Accuracy: ± 10%

0 Ω to 999 kΩ
Range: 0 Ω to 999 Ω (resolution: 5 Ω)
Range: 1 kΩ to 999 kΩ (resolution: 1 kΩ)
Accuracy: ± 10%

≥ 30 V rms
Icon displayed on screen: Tx

≥ 30 V rms
Red light indicator:





Compatible receiver UAT-600-R Receiver

Compatible accessories

Display

Update rate

Operating temperature and
humidity

Storage temperature and
humidity

Operating altitude < 6561 ft (< 2000 m)

Pollution degree 2

Water and dust resistance IP54

Drop proof 3.28 ft (1 m)

Power supply Eight (8) 1.5 V D cell alkaline batteries

Auto power off None

Battery life Approx. 16 hours at 70 °F (21 °C) (Typical)

SC-600 Signal Clamp
AF-600 A-Frame
TL-UAT-600 Test Lead Set

Monochrome dot matrix graphic LCD display (LED backlight)

2.4 in x 1.3 in (60 mm x 32 mm)
Current (mA): 10 ms

Voltage (V): 15 ms
Resistance (Ω): 330 ms

-4 °F to 122 °F (-20 °C to 50 °C), ≤90% RH

-40 °F to 140 °F (-40 °C to 60 °C), ≤90% RH

22

Low battery indication

Overvoltage category CAT IV 600 V

Overload protection

Agency approval

Safety compliance

Electromagnetic Compatibility

Size (H x W x L) Approx. 14 x 9 x 4.7 in (355 x 230 x 120 mm)

Weight Approx. 7.0 lb (3.2 kg) (batteries installed)



600 V rms
Fuse FF 500 mA, 1000 V, IR 30 kA, Φ6.3×32 mm



 

IEC 61010-1, IEC 61010-2-033
CSA/UL 61010-1, CSA/UL 61010-2-033
IEC 61010-031, CSA/UL 61010-031 (test leads)

IEC 61326-1 Korea (KCC): Class A Equipment (Industrial Broadcasting &
Communication Equipment)

[1]

This product meets requirements for industrial (Class A) electromagnetic
wave equipment and the seller or user should take notice of it. This
equipment is intended for use in business environments and is not to be
used in homes.

[1]

UAT-600-R Receiver

Operating voltage 0 to 600 V

Tracing modes

Locating modes Peak and Null

Sensitivity adjustment
(gain control)

Depth measurement Up to 20 ft (6 m)

Depth measurement accuracy

Sensitivity at 1 m (typical)

Display backlight Automatic

Audio indication Increasing closer to the signal

Compatible transmitter UAT-600-T Transmitter

Display 4.3 in (109 mm), 320 x 240 BW outdoor LCD display with auto backlight

Update rate Instantaneous

Operating temperature and
humidity

Storage temperature and
humidity

Operating altitude < 6561 ft (< 2000 m)

Pollution degree 2

Water and dust resistance IP54

Drop proof 3.28 ft (1 m)

Active tracing: 33 kHz (32,768 Hz) and 8 kHz (8,192 Hz)
Passive tracing: 50 / 60 Hz and Radio

Yes

4 in (0.1 m) to 10 ft (3m): ± 3 %
10 ft (3 m) to 20 ft (6 m): ± 5 %

Power: 2 mA
Radio: 20 µA
8 kHz: 5 µA
33 kHz: 5 µA

-4 °F to 122 °F (-20 °C to 50 °C), ≤90% RH

-40 °F to 140 °F (-40 °C to 60 °C), ≤90% RH

23