RIDGID NaviTrack 10 Manual do Operador descarregar pdf (Página 19)

SeekTech

ST-510 Line Transmitter

conductor. The reason is that a high-frequency signal

can “jump” some barriers and continue without losing

as much signal.

A high-frequency signal can also be valuable in

getting a signal on a receiver when there is a poorly

grounded circuit, compared to the signal the same

receiver will detect at a lower frequency. While all

currents tend to follow the path of least resistance, a

high-frequency current will “buck” this tendency to

some degree, reaching across incidental barriers.

The disadvantage to higher frequencies is that they

also jump onto other conductors (known as bleed-

over). If you have two wires side by side in a trench,

a higher frequency used to trace one of them may

illuminate both of them. Additionally, nearby metallic

objects, or even highly metalized soil, may pick up a

higher frequency and distort the picture at the locator.

If a gas line is being “illuminated” with a high

frequency current, it may bleed over onto a water line

or a power cable running nearby, confusing the

picture of where the original line is.

As a general rule, detecting with lower frequencies is

more reliable for the reasons given above, IF you can

get a good signal.

High Frequencies:

• Don’t travel as far

• Overcome some barriers

• Bleed-over more.

Low Frequencies:

• Travel further

• Lose signal when hitting barriers, gaskets,

poor insulation

• Do not bleed-over as much.

FCC Limits

47 CFR 15.213 says that from 9kHz up to (but not

including) 45kHz, peak output power shall not exceed

10 W. From 45kHz to 490kHz, it must not exceed

1W.

Transportation and Storage

Before transporting make sure that the unit is OFF to

preserve battery power.

Make sure that the ST-510 line transmitter is secure

and does not bounce around or get bumped by loose

equipment.

The ST-510 line transmitter should be stored in a

cool dry place.

Note: If storing the ST-510 line transmitter for an

extended period of time, the batteries should be

removed. If storage is brief then the battery carriage

may be pulled out ½ an inch to preserve battery

power. Remove batteries entirely before

shipping.

Maintenance and Cleaning

1. Keep the ST-510 line transmitter clean with a

damp cloth and some mild detergent. Do not

immerse in water.

2. When cleaning, do not use scraping tools or

abrasives as they may permanently scratch

the display. NEVER USE SOLVENTS to clean

any part of the system. Substances like

acetone and other harsh chemicals can cause

cracking of the case. Locating Faulty

Components

For troubleshooting suggestions, please refer to

the trouble

shooting guide at the end of the

manual.

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