1' How does it work

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Part II

• 1. How does it work?
• 2. What makes our locator different?
• 3. Working with a sonde
• 4. Ridgid line locators

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Part II

• 1. How does it work?
• 2.
• 3.
• 4.

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1. How does a line locator work?
1.1 Whats the system?

• A line sends out a signal
• The line locator (receiver) reads this signal
  through its antenna(s)
• The locator translates the signals to be
  interpreted by the user

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Company Confidential
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1. How does a line locator work?
1.2 Sending out a signal!

• 2 ways
• Active (strongest signal)
• Manually connect a line transmitter onto a line
• Choose yourself the signal and frequence
• Passive
• Use the signals which are already present
  earth signal or electric frequence (50Hz)

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Company Confidential
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1. How does a line locator work?
1.2.1 Active how to connect?
1. Direct connect
Connect the line transmitter to the line, a
valve, a joint, a crane etc You can connect
both clamps (start/end of line) You can connect
one clamp on the line and the second you connect
to an earth
Signal by contact
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Company Confidential
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1. How does a line locator work?
1.2.1 Active ways to connect
2. Signal clamp around the line

• You cannot or dont want to touch the line
  directly
• Electric
• Phone
• Cable TV
• Multimedia

Signal through induction
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Company Confidential
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1. How does a line locator work?
1.2.1 Active ways to connect
3. Induction

• Transsmitter is placed on top of the line
• Advantage no need to connect
• Disadvantage no idea what happens with the
  signal
• Quality, received by the line?...
• All lines in the ground are activated...

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Company Confidential
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1. How does a line locator work?
1.2.4 Active what signal (frequency)

• ULine locator and transmitter are put on the same
  frequence (electromagnetic signal)
• Which frequence?
• Lower frequency
• Goes further
• Stays true to the line (less chance of
  coupling)
• Signal stops when a hurdle comes (bad conductor,
  rusted valve...)
• Higher frequency
• Risk of coupling
• Can pass hurdles

Geleiding
Copper
Aluminum
Steel
Ductile
Tip first use the lower frequency!
Coupling
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1. How does a line locator work?
1.2.2 Passive by using the line locator only

• When you cannot connect a line transmitters onto
  a line
• What? Use signals present
• Line works like a radio antenna
• Signal strength depends on the conditions (
  proximity of other lines and metal, type of
  underground...)
• Note not all lines to be found!

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Company Confidential
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1. How does a line locator work?
1.3 Difference working with and without line
transmitter

• With line transmitter (active)
• Can find almost all lines
• Has a stronger signal thus more precise
• You have to connect onto a line
• Without line transmitter (Passive)
• No need to connect!
• But not all lines to be found
• A small line (eg small phone line)
• A short piece of line
• A balanced HV line
• A bad conductor
• Note about using line location inside a house
  limited use
• - lights, PCs, electric cables etc... All
  disturb the signal
• - small room and many metallic objects disturb
  the signal

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Company Confidential
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Part II

• 1. How does it work?
• 2. What makes our locator different?
• 3.
• 4.

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2. What makes our locator different?
2.1 Use of a graphic screen

• 1D Antennes (single direction)

3D Antenne
Same information
Extra!
By using 3D antennas we are able to provide more
information and all in real-time !
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2. What makes our locator different?
2.1 Use of a graphic screen
This number increases when you go into the
direction of the line
De arrows tell the user to go to the left/right
to go to the line
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3
4
1
Depth always on screen! (Even when passive
locating)
De line gives you the direction of the searched
line. The line on the screen will turn also when
the underground line turns
All this information is CONSTANT available
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2. What makes our locator different?
2.2 Omniseek
Line 1
Line 2
You can see more lines on one screen!
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2. What makes our locator different?
2.3 How you approach the line doesnt matter for
a 3D antenna!

• 1D Antennes

3D Antenne
Signal cannot pass
Stroomleiding
Visible!
Not visible
When walking towards a line in front of you
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Part II

• 1. How does it work?
• 2. What makes our locator different?
• 3. Working with a sonde
• 4.

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3. Working with a sonde
3.1 How to find a non-metallic line
Using an inspection camera Using a separate sonde
Sonde
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3. Working with a sonde
3.2 How to find a sceptic tank?
Floating Sonde 512 Hz
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3. Working with a sonde
Peak
3.3 Single direction antenna?
False Peak
Signal
False Peak
By using single direction antenna you can end up
at the wrong place!
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3. Working with a sonde
3.4 With 3D antenna?
Max signal transmitter
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Part II

• 1. How does it work?
• 2. What makes our locator different?
• 3. Working with a sonde
• 4. Ridgid line locators

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4. RIDGID equipment

• Line locators
• SR-20
• SR-60
• Line transmitters
• ST-305
• ST-510
• ST-33Q
• Signal clamp

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4. RIDGID equipment

• 1. SR-20 line locator
• 1 - 35kHz
• 512Hz, 33kHz Sonde
• Graphic screen
• Supplied in plastic case
• 4 x C batteries

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4. RIDGID equipment

• 2. SR-60 line locator
• 1 - 93kHz
• Higher frequency use when bad earthing
• 512Hz, 33kHz sonde
• Extra large graphic screen
• Supplied in plastic case
• 4 X C batteries

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4. RIDGID equipment
3. Line transmitters

• ST-510
• 27 frequencies
• 10 Watt variable
• LCD screen Ohm, Watt
• 8 x D-cell Batteries
• Sound signal

• ST-305
• 4 frequencies (1kHz/8kHz/33kHz/93kHz)
• 5 Watt variable
• 6 X C-cell batteries
• Sound signal

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4. RIDGID equipment
3. Line transmitters

• ST-33Q
• 0-93kHz
• Strong transmitter
• Special induction antenna
• 5 Watt
• LCD screen
• 6 x C-cell Batteries
• Sound signal

• Signal clamp
• 2 LEDs
• Clamp gets power
• Clamp is closed

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End PART II