Ridgid SR-60 User Manual download pdf (Page 19)

Ridge Tool Company  Elyria, Ohio  U.S.A www.seektech.com 17

SeekTech SR-60

Current and Signal Angle Reading

The Current Strength ( ) and Signal Angle

indicator (

) in the upper right corner of the screen

will display the current detected on the traced line, in

milliamps, when the computed angle to the center of

the detected field is less than 35° and the SR-60

crosses the center of the field.

When moving across the center of the field the

current display will retain

the displayed current value

until the guidance arrows reverse again, at which

point the display will be updated. The update occurs

whenever the guidance arrows reverse.

When the angle to the center exceeds 35°, the Signal

Angle indicator will again replace the Current

indicator, and the display will show the computed

angle to the center of the detected field.

Clipping (Tracing Modes)

Occasionally the Signal Strength will be strong

enough that the receiver will be unable to process the

whole signal, a condition known as “clipping”. When

this occurs, a warning symbol

will appear on

the screen. It means that the signal is particularly

strong. If clipping persists, remedy it by increasing

the distance between the antennas and the target

line OR by reducing the strength of the current from

the transmitter.

Note: Measured Depth Display is disabled

under clipping conditions.

When clipping occurs, the SR-60 will automatically

attenuate the signal to dampen it. When the signal

strength received falls below the clipping threshold,

the attenuation stops automatically. The SR-60

screen will indicate the starting of attenuation and the

stopping of attenuation by showing these images:

Figure 25: Attenuation On

Figure 26: Attenuation Off

Operating Tips for Active Line

Tracing

1. The SR-60 quickly identifies distorted fields. If the

guidance arrows are centered on the screen, and

the Trace Line is not centered (or if the Proximity

Signal number and Signal Strength are not

maximized), then distortion is creating a complex

non-circular field. This is also reflected by the

Tracing line dissolving, or growing unfocused in a

cloudy pattern proportional to the distortion

detected.

2. To improve the tracing circuit:

a. Move the ground stake position away

from the line to be traced.

b. Use a larger ground contact surface

(such as a shovel blade).

c. Make sure that the line is not commonly

bonded to another utility. (Undo common

bonds only if safe to do so).

d. Try changing the frequency used.

e. Move the transmitter to a different point

on the line, if possible. Try locating from

the other direction along the line, for

example.

3. Circling the last location of a clear signal at a

distance of about 20 feet (6.5 m) can clarify if the

distortion is coming from a local turn or tee in the

line, and enable the operator to again pick up the

line nearby.

4. If the Tracing Line will not center or if it moves

across the screen erratically, then the SR-60 may

not be receiving a clear signal. The Measured

Depth and the Proximity Signal may also be

unstable under these circumstances.

a. Check the transmitter to be sure that it is

operating and well grounded. Good

connection and good grounding can

remedy low current problems.

b. Test the circuit by pointing the lower

antenna at either transmitter lead. If a

strong signal is not shown, improve the

circuit.

c. Check that the SR-60 and transmitter are

operating on the same frequency.

d. Try a higher frequency, until the line can

be picked up dependably. Using lower

frequencies can overcome bleed-over

problems. Higher frequencies can

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Ridgid SR-60 User Manual Page 19

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