Fcc Limits; Transportation And Storage; Maintenance And Cleaning; Service And Repair - RIDGID SeekTech ST-510 Operator's Manual

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
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
Components
For troubleshooting suggestions, please refer to
the trouble shooting guide at the end of the
manual.
entirely before
case. Locating Faulty