RIDGID NaviTrack 10 Manual del operador descargar pdf (Pagina 13)

Ridge Tool Company  Elyria, Ohio  U.S.A www.navitrack.com 11

NaviTrack

Line Transmitter

3. Power the transmitter on and proceed as in

Direct Connect mode. Be sure the receiver

and the transmitter are set to the same

frequency.

Note: The Inductive Clamp is not recommended

for use at frequencies less than 8 kilohertz.

Inductive Mode

The NaviTrack 10W Transmitter can be used without

a direct connection to a pipe or cable. In Inductive

Mode, the NaviTrack-transmitter generates a field

which induces a current into a conductor such as a

pipe running directly beneath it.

1. Be sure that the transmitter is positioned

correctly over the line.

Figure 10: Orientation to Conductor (Inductive Mode)

A slight tilt relative to the conductor’s axis is helpful in

reducing the chance of air-coupling:

Transmitter

Conductor

2. To use a frequency in the inductive mode

select the frequency. Then push the same

frequency key a second time for

approximately 2 seconds. The inductive red

LED will light up (in addition to the selected

frequency) to let the user know that the line

transmitter is transmitting inductively on that

frequency.The tone will change from single to

grouped tones.

Figure 11: Induction LED

3. Lower frequencies (less than 8kHz) couple

poorly inductively. When using Inductive

Mode, use higher frequencies in order to get a

good signal at the receiver.

4. Note that the line into which current is induced

must be grounded in both directions for a

signal to be induced away from the transmitter.

5. The transmitter in inductive mode will generate

a field through the air around it as well as into

the ground under it. If the receiver is within 30

feet (10m) of the transmitter it will measure

this field instead of on the target conductor.

Place the transmitter at least 30 feet (10m)

away from the region where tracing occurs in

order to avoid this “air coupling”.

Figure 12: Air-Coupling

6. Generally if you trace a line with an induced

signal checking for a valid depth measurement

and a strong stable proximity signal is the best

Orientation

Mark

Orientation

Guide

Induction

LED

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