How To Use The Sondes; General Information - Leica DD120 Series User Manual

Locators & accessories
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5.9
5.9.1
Description
How to trace a utility
using a sonde
Applications
6.
Trace the length of the utility. Refer to
5.2 How to Trace a

How to Use the Sondes

General Information

The sondes are signal transmitters used to trace pipes, ducts, conduit or
drains. A sonde can be attached to a range of equipment including drain
rods, boring tools and inspection cameras. It is powered by its own battery
supply, so unlike other accessories this does not require a connection to the
transmitter.
The signal pattern transmitted from a sonde is different to that which is radi-
ated from a utility and requires tracing in its own unique method. The sonde
transmits a peak signal over its main body, with a ghost signal at its front and
back.
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450
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The Locator features a Numeric Peak Indicator which is used to
identify the peak reading. Refer to
For ease of use practice the process above ground.
For ease and convenience mark the ground every 3 to 4 metres.
1.
Set the locator and sonde to the same
frequency and verify their performance.
Utility.
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3.1 Display Panel
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Overview.
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