Greenlee BLL-200 Manual de usuario

INSTRUCTION MANUAL

MANUAL DE INSTRUCCIONES

MANUEL D’INSTRUCTIONS

Read and understand all of the instructions and safety

information in this manual before operating or servicing this tool.

Lea y entienda todas las instrucciones y la información sobre

seguridad que aparecen en este manual, antes de manejar estas

herramientas o darles mantenimiento.

Lire attentivement et bien comprendre toutes les instructions et

les informations sur la sécurité de ce manuel avant d’utiliser ou de

procéder à l’entretien de cet outil.

BLL-200

BURIED LINE LOCATOR

LOCALIZADOR DE LÍNEAS

SOTERRADAS

DETECTEUR DE LIGNE ENFOUIE

Description

The Greenlee BLL-200 Buried Line Locator is a compact, lightweight kit consisting of two

components—a transmitter and a receiver. The receiver can work alone for tracing buried

current-carrying conductors, or with the transmitter for tracing other conductive objects.

Applications include the following:

• HVAC (Heating, Ventilation and Air Conditioning)

• telephone

• CATV (Cable Television)

• line voltage

• fiber optic with metallic shield

• security system wiring

• conduit

• water pipe

• finding unknown conductors

The transmitter also provides the ability to measure the depth of the buried conductor.

Buried debris, underground rebar (reinforcement bar), and areas crowded with conductors can

create a challenging tracing environment. This manual provides tips and strategies to help

reduce or eliminate the difficulties caused by these circumstances. Use of the BLL-200 is

explained under Introduction and Operation. The Introduction explains some of the general

concepts of the tool, and Operation goes into more detail on the use of the tool.

Safety

Safety is essential in the use and maintenance of Greenlee tools and equipment. This

instruction manual and any markings on the tool provide information for avoiding hazards and

unsafe practices related to the use of this tool. Observe all of the safety information provided.

Purpose

This instruction manual is intended to familiarize all personnel with the safe operation and

maintenance procedures for the Greenlee BLL-200 Buried Line Locator.

Keep this manual available to all personnel.

Replacement manuals are available upon request at no charge.

and are registered trademarks of Greenlee Textron.

KEEP THIS MANUAL

BLL-200

Important Safety Information

This symbol is used to call your attention to hazards or unsafe practices which could

result in an injury or property damage. The signal word, defined below, indicates the

severity of the hazard. The message after the signal word provides information for

preventing or avoiding the hazard.

SAFETY ALERT SYMBOL

Immediate hazards which, if not avoided, WILL result in severe injury or death.

Hazards which, if not avoided, COULD result in severe injury or death.

Hazards or unsafe practices which, if not avoided, MAY result in injury or property

damage.

Read and understand this material before operating or servicing

this equipment. Failure to understand how to safely operate this

tool can result in an accident causing serious injury or death.

Important Safety Information

Beware of the hazards associated with utility access areas and underground work

areas.

• Hazards can include explosive or flammable gases and toxic fumes.

• Observe the safety practices and procedures of your company, the local utility, and

any other governing body.

Failure to observe these warnings can result in severe injury or death.

Electric shock and fire hazard:

• Do not expose this unit to rain or moisture.

• Use this unit for the manufacturer’s intended purpose only, as described in this

manual. Any other use can impair the protection provided by the unit.

Failure to observe these warnings can result in severe injury or death.

Electric shock hazard:

Contact with live circuits can result in severe injury or death.

BLL-200

Important Safety Information

• Do not operate with the case open.

• Before opening the case, remove the leads from the circuit and shut off the unit.

Failure to observe these warnings can result in severe injury or death.

Beware of any vehicles or machines in motion at the work area. Be especially observant

when tracing a buried line that runs along or under a roadway, railroad tracks, or

through a construction site.

Failure to observe this warning can result in severe injury or death.

Electric shock hazard:

• Do not use the unit if it is wet or damaged.

• Use test leads or accessories that are appropriate for the application. See the

category and voltage rating of the test lead or accessory.

• Inspect the test leads or accessory before use. They must be clean and dry, and the

insulation must be in good condition.

Failure to observe these warnings can result in severe injury or death.

Electric shock hazard:

• Do not connect the transmitter to a circuit carrying more than the rated voltage.

• Do not contact the lead clips or any uninsulated portion of the accessory.

Failure to observe these warnings can result in severe injury or death.

Important Safety Information

• Do not attempt to repair this unit. It contains no user-serviceable parts.

• Do not expose the unit to extremes in temperature or high humidity.

See Specifications.

Failure to observe these precautions can result in injury and can damage the unit.

Using this unit near equipment that generates electromagnetic interference can result

in unstable or inaccurate readings.

Do not connect the transmitter to a circuit carrying more than the rated voltage.

A blown fuse may result.

BLL-200

Identification

Transmitter

1. Clamp

2. Connectors

3. Live Line LED (illuminates if circuit voltage is more than 50 V)

4. Power Lamp

5. Low Battery Lamp

6. Three-Position Switch (Line/Clamp Connection, Inductive Mode, and OFF)

Receiver

7. Display

8. Power Switch

9. Signal Strength Lamps

10. Mode Switch (Trace/Passive)

11. Three-Position Volume Switch (Off, Low, High)

12. Signal Reset/Depth Reading Button

2 3

Display Icons

Signal Strength Display

13. 01 through 99 Signal Strength

14. ~Passive Mode Indicator

15. +Signal Boost Indicator

16. BAT Battery Indicator (flashes when batteries are low)

15 13

Depth Reading Display

17. Feet

18. Tenths of Feet

Out-of-Range Display

19. Dashes

Symbols on the Unit

Warning—Read the instruction manual

Double insulation

Risk of electric shock

BLL-200

Introduction

The BLL-200 Buried Line Locator consists of two components—a receiver and a transmitter.

The receiver can work alone, in Passive Mode, for tracing any current-carrying wires or cables.

When used with the transmitter, the receiver works in Trace Mode to pick up the transmitter’s

unique signal on conductors such as wire, cable or metallic conduit.

The Receiver

The receiver is almost completely automatic, and provides three types of feedback to the

user —signal strength lamps, an LCD that displays signal strength as a numeric value, and a

speaker that produces a tone when the signal is near the maximum.

It also features a signal booster to pick up all but the weakest electrical signals. When the

booster is active, a plus sign appears on the LCD. The receiver can be used alone (Passive

Mode) or with the transmitter (Trace Mode).

The Transmitter

The transmitter produces a unique signal at 33.3 kHz that the receiver is tuned to. This unique

signal reduces the possibility of interference, and will not affect computers or other voltage-

sensitive equipment. The transmitter is versatile, providing three methods of transferring its

signal to the conductor: Direct Connection, Clamp, and Inductive Mode.

The most effective method is Direct Connection—using the leads included in the kit to connect

the transmitter directly to a conductor. The only disadvantage is that making a direct

connection isn’t always possible, since the user doesn’t always have access to the conductors

of the buried line.

When a direct connection is not possible, the next option is the clamp. Simply enclose the

conductor or conduit in the clamp and connect the clamp to the transmitter. This method

draws a higher amount of battery current, so the signal strength depends on the condition of

the batteries. Use fresh batteries for better results.

If it’s not possible to use the clamp, the last method is Inductive Mode. This method sends the

transmitter’s signal through the earth; the buried line acts like an antenna. This method isn’t as

effective as the clamp or Direct Connection, but usually provides better results than using the

receiver alone.

Soil Type and Moisture Content

The performance of the BLL-200 is largely dependent on soil type and moisture content.

Moist, compact soil provides the best results. If the soil is dry, moisten it before tracing to

achieve better results.

Alkaline soil and soil with high iron content provide a poor tracing environment.

The best solution for poor soil conditions is to establish the best possible ground and use a

direct connection to the transmitter.

Operation

Using the transmitter and receiver together provides better overall results than using the

receiver alone. Use the transmitter and receiver together (Trace Mode) whenever possible.

Using the Receiver Alone (Passive Mode)

The receiver will detect buried metallic debris, unenergized electrical lines, and current-

carrying conductors. To provide better results when searching for current-carrying conduc-

tors, energize any circuits to find the buried line—turn on lights, HVAC, and other electrical

equipment. If searching for CATV cable, connecting a television to the cable may improve

results.

Note: Passive Mode tracing functions with or without the T-shaped antenna extended.

Extending the antenna creates better accuracy but requires more frequent signal resets.

1. Set the mode switch to PASSIVE.

2. Turn the power ON. The Signal Strength LEDs will illuminate, and the Passive Mode

Indicator will appear on the LCD.

Optional: Set the speaker volume to Off, Low or High.

3. Scan the area for buried lines. See Scanning Procedure.

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