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Vivax vScan, Руководство пользователя

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4 Locating 

Page 20 of 33 

 

 

4.6 

Locating Non-metallic Pipes or Ducts 

Locating  non-metallic  pipes  or  ducts  is  not  possible  using  conventional  locating  techniques.  However,  it  is 
possible  to  detect small  transmitting  devices  (Sondes)  if they  are  inserted  into  a  non-metallic  pipe  or  duct. 
Sondes are available in a range of sizes and transmitting ranges. A popular one is the D38 Sonde that has a 
diameter of 38mm and a range of 5m. 
 
The  Sonde  is  typically  attached  to  a  drain  rod  (10mm  fitting)  and  pushed  down  the  pipe  or  duct  and 
periodically located as it is pushed along. 
 

Locating Sondes method: 

1. 

Switch on the Sonde by connecting the battery. Connect it to the pushrod and place it in the start of the 
pipe run. 

2. 

Switch on the vScan and select Sonde Mode using the mode paddle. The Sonde icon will now be visible 
on the screen. 

 

3. 

Position the vScan above the Sonde as indicated below: (The rotational orientation of the receiver is 90 
degrees to that used when line locating) 

 

 
4. 

Adjust  the  sensitivity  control  so  that  the  bar  graph  reads  approximately  75%.  Now  move  the  vScan 
forward and back to detect the largest signal. You will also notice that there will be a “ghost signal” in front 
and behind the Sonde. This is normal and characteristic of locating Sondes. 

Содержание vScan

Страница 1: ...vScan User Handbook English Edition Version 1 0 P N 4 04 000051 ...

Страница 2: ...ation Provided by the Locator 3 1 1 6 American Canadian Safety Notices 4 1 2 Service Support 5 1 2 1 Serial Number and Software Revision Number 5 1 2 2 International and National Distributors and Service Centers 6 Power Supplies 7 2 1 vScan Receiver Batteries 7 2 1 1 Alkaline Batteries 7 2 1 2 Charging the Receiver Optional Li ion Battery Pack 7 2 2 vScan Transmitter Batteries 8 2 2 1 Alkaline Bat...

Страница 3: ...over Detector 19 4 5 1 Locating a Buried Cover 19 4 6 Locating Non metallic Pipes or Ducts 20 4 7 Advanced Locating Techniques 22 4 7 1 Two Person Sweep 22 4 7 2 Swamping an area with Signal Broad Induction 22 4 7 3 Nulling Out a Signal Induction Mode 24 4 7 4 Capacitive Coupling 24 4 8 Self Test Calibration Check 25 4 8 1 The vScan Receiver 25 4 8 2 vScan Transmitter Check 26 4 9 GPS 27 4 10 Crea...

Страница 4: ...be used in areas requiring intrinsically safe approvals The equipment should not come in contact with corrosive or hazardous chemicals or gases dust Do NOT directly connect this equipment to cables or pipes that have a potential difference to ground of greater than 25V AC ALWAYS REMEMBER TO DIG SAFELY 1 1 2 Equipment Safety WARNING Do NOT open the enclosures housings of either the transmitter or r...

Страница 5: ...off on without using the instrument If used with an inverter in a vehicle charge the product then unplug the charger and do NOT charge again until the rechargeable batteries have been used for at least 10 minutes Failure to do this could result in the overcharging of the battery which will shorten the life of the battery and could in some circumstances causes overheating or fire If ever the produc...

Страница 6: ... be shipped normally by road rail sea air passenger freight aircraft without restrictions If at any point Vivax Metrotech manufactures a product containing batteries that would fall under hazardous cargo restrictions it will be clearly noted on the product labeling and in the user handbook 1 1 3 6 General Rules Regarding Disposal of Batteries WARNING NEVER disassemble a battery or battery pack Nev...

Страница 7: ...ransmitter and receiver comply with the general conditions of operation pursuant to part 15 of the FCC Rules o CFR 47 Part 15 Changes or modifications not expressly approved by the manufacturer could void the user s authority to operate the products CANADA Equipment is for use by trained operators only and not for general household or consumer use Operation is subject to the following two conditio...

Страница 8: ... Number NOTE The transmitter Model Serial Number can be found at the bottom of the transmitter and also inside the transmitter between the battery tray and the main module of transmitter Software Revision Number For the receiver the software revision number is displayed on the LCD during the startup sequence or can be found in the About section of the user menu This also applies to transmitters wi...

Страница 9: ...Australasia Tel 49 9544 680 Vivax Metrotech AUS Fax 49 9544 2273 Unit 1 176 South Creek Road Website www sebakmt com Cromer NSW 2099 Australia Email service sebakmt com Tel 61 2 9972 9244 France Fax 61 2 9972 9433 Vivax Metrotech SAS Website www vivax metrotechaus com Technoparc 1 allée du Moulin Berger Email sales vxmtaus com 69130 Ecully France service vxmtaus com Tel 33 0 4 72 53 03 03 Canada F...

Страница 10: ...w the turn fastener of the battery compartment open the internal battery door Remove the battery holder and replace ALL the batteries Mixing good and discharged batteries may result in excessive heat or even fire 2 1 2 Charging the Receiver Optional Li ion Battery Pack The battery can be charged on site Unscrew the turn fastener of the battery compartment do not open the internal battery door Alig...

Страница 11: ...ood and discharged batteries may result in excessive heat or even fire 2 2 2 Charging the Transmitter Li ion Batteries Remove the battery pack by unscrewing the two fasteners of the battery compartment Align the red dot on the charger with the dot on the charging socket situated at the base of the battery and connect together Connect the charger to the mains and switch on The charging LED on the c...

Страница 12: ... 3 Compass line direction indicator 4 Battery level indicator also alarm indicator 5 Point of interest flag 6 GPS icon 7 Signal strength bar graph 8 Mode in use 3 1 2 Receiver Controls 1 Display 2 On Off button Also used to navigate in menu 3 Depth Current Also long press enters menu option 4 Fixed general purpose speaker 5 Mode switch Also used to navigate menu functions 6 Battery compartment Als...

Страница 13: ... If an overload condition is triggered the bar graph will also flash How warnings alarms communicate their message is user configurable using MyvScan desktop application 3 1 3 1 Shallow Line Alert The shallow line alert will be triggered when a shallow line is detected 3 1 3 2 Swing Alert The swing alert will trigger if the angle of swing exceeds 30 degrees from the vertical No alarm will be activ...

Страница 14: ...hen not in use If the connection socket is not being used induction mode is selected automatically 2 On Off pushbutton Long press to switch on Long press to switch off 3 Output level pushbutton Press to change from battery save to high signal output 4 Speaker volume pushbutton High low settings 5 Speaker 6 Battery housing cover 7 Battery cover retaining screw 8 Batteries 9 Pulse Continuous pushbut...

Страница 15: ...e UK is 50Hz power but in the USA has 60Hz When electrical power is distributed throughout the network some of the power finds its way back to the power station via the ground These stray currents can jump onto pipes and cables and also create power signals Note that there has to be electrical current flowing to create a detectable signal So for instance a live cable that is not in use may not rad...

Страница 16: ...irectly over the line and with the blade across the line 8 The direction can also be found by rotating until the smallest signal is detected The blade is then in line with the cable pipe 9 Continue to locate the position of the line at regular intervals until its course is known through the target area NOTE In busy environments it is not always possible to look at the meter and take note of traffi...

Страница 17: ... has the benefit that unlike passive detecting the operator is in control of the signals and therefore can be more specific about what line is detected That is to say active signals can be used for line tracing or identification Also Passive signals are not always present on a line so using active signals ensures more lines are detected To inject a signal requires the use of the vScan transmitter ...

Страница 18: ...ts along the fencing that will interfere with the locating signal The output of the vScan transmitter can be set to battery save or high output levels Always start with a low output and increase the output if the received signal is not strong enough Setting the output to high when it is not required may result in some of the signal bleeding off onto other services and will drain more power from th...

Страница 19: ...nd the target line and not to the ground bus other grounds to avoid the transmitted signal also being applied to an unwanted lines Clamp Extension Rod A useful accessory to the clamp is the extension rod The extension rod is fitted with a 10mm screw thread This male thread will screw into the handle of the signal clamp and will enable the clamp to be attached to too hard to reach cables such as in...

Страница 20: ...ess to the line but it should be noted that this is the least efficient method of applying a signal and it is also prone to signals being applied to adjacent lines Also note that the signal will radiate out to the side of the transmitter as well as below For this reason it is recommended that when applying a signal using the Induction method a distance of at least 20m is kept from the transmitter ...

Страница 21: ...g it as this may create false readings Move the locator backward and forward to ensure a maximum signal is detected Use the peak level indicator to assist With the maximum signal found and the compass running across the bar graph the vScan is now directly over the line and exactly across it Continue to trace the line to its destination or source 4 3 Taking Depth and Current Measurements If the dep...

Страница 22: ...ump across these joints and continue down the line 4 Poorly grounded cables Generally higher frequencies will travel along a poorly grounded cable better than lower frequencies 4 5 Metal Locate Mode vScanM Cover Detector The metal locate mode is used to detect buried manhole covers For this feature be sure to order vScanM The cover locator has been designed to respond to most metal covers 4 5 1 Lo...

Страница 23: ...eriodically located as it is pushed along Locating Sondes method 1 Switch on the Sonde by connecting the battery Connect it to the pushrod and place it in the start of the pipe run 2 Switch on the vScan and select Sonde Mode using the mode paddle The Sonde icon will now be visible on the screen 3 Position the vScan above the Sonde as indicated below The rotational orientation of the receiver is 90...

Страница 24: ...de 6 Finally check that the vScan is in line with the Sonde by rotating it on its axis to obtain a peak signal The vScan is now over the Sonde and in line with it 7 If a depth estimation is required place the vScan on the ground having pinpointed the Sonde as above Momentarily press the i button and the depth will be displayed To exit the depth screen either wait for ...

Страница 25: ...ervices below 3 Switch on the vScan and select 33 kHz line mode Stand at least 10m apart holding the equipment as below i e with the transmitter and receiver in line with the direction of walking Adjust the sensitivity of the receiver so that the meter reads approximately 20 Walk slowly across the site keeping parallel with each other As a service is approached the signal level on the receiver wil...

Страница 26: ...e transmitter watching for an increase in signal level At an increase pinpoint the source of the signal and mark the ground at the maximum point Repeat until the complete circle is checked Finally check the route of the services detected by placing the transmitter in the more conventional way ie flat on the ground and across the direction of the service and tracing the signal though the area Note ...

Страница 27: ... the Tx foot and place in the null position 3 The signal should now only be visible in the wanted service but not on the unwanted service Note that only one service at a time can be nulled out using this method so if there are more than two services the above may need to be repeated to null out other services 4 7 4 Capacitive Coupling There may be times when direct connection is not possible and i...

Страница 28: ...ction with MyvScan to print out calibration certificate and to store a complete self test and calibration history of the receiver Method 1 Firstly identify an area that is free from cables and erroneous signals such as computer monitors extraction fans fluorescent lighting etc If in doubt switch to each mode and with the sensitivity set to maximum check that the background noise is below 10 of ful...

Страница 29: ...r it is advisable to perform this quick and easy functionality check Method Induction 1 Set the transmitter down on a wooden chair or table so that it is off the ground Set it in the orientation as shown 2 Switch on the transmitter Set the Receiver to 33 kHz Sonde mode Set the sensitivity control so that the largest notch is pointing directly at the mode switch as below 3 Slowly alter the distance...

Страница 30: ...t be detected If no GPS data is being detected the record will still be logged but without GPS data If the GPS option is fitted a GPS icon will appear on the screen The condition of the GPS signal can be determined as below No GPS icon GPS not fitted Flashing icon GPS not receiving a valid signal Looking for satellites Solid icon valid GPS signal detected NOTE Note that when the unit is switched o...

Страница 31: ...nal devices such as high accuracy GPS and data logging devices via a radio link Before data can be exchanged with the external device the two units need to be electronically paired The vScan screen shows the status of the Bluetooth via the Bluetooth icon No icon Bluetooth not fitted Bluetooth icon with cross next to it Bluetooth fitted but not activated Icon flashing Bluetooth is activated but not...

Страница 32: ...f data logging to an external device it will be necessary to configure the external data logger to accept the format of the data steam For more details on the vScan data stream visit www vivax metrotech com 4 12 MyvScan MyvScan is a powerful software package which supports features available in the vScan receiver product range including vScan and vScanM MyvScan can be downloaded from the website w...

Страница 33: ...d MyvScan When MyvScan is first launched you will see the home page as below The screen is split into two main areas To the left you have the three main options Configure Locator Data Management Options Note that a red dot will appear on the Options bar if a software update is available To the right is a first time use page that helps describe the features available Checking the Do not show this a...

Страница 34: ...ate to the next or previous screen The numbers and ticks along the bottom indicate how many pages are associated with the area and how many have been visited Follow the on screen instructions and make selections as necessary MyvScan is under continual development therefore screens and instructions may change from time to time ...

Страница 35: ...ocate A locate where the receiver searches for a wide range of signals that radiate from buried pipes or cables These signals come from a variety of sources in the environment and couple to the buried overhead lines Typical examples 50 60Hz and LF VLF radio Passive Signals A wide range of signals that radiate from buried pipes or cables These signals come from a variety of sources in the environme...

Страница 36: ...ow some resemblance to similar illustrations from other Manufacturers some manufacturers have given permission for the use of their graphics Vivax Metrotech Seba is given credit for such use This statement is intended to attribute such credit Disclaimer Product and accessory specification and availability information is subject to change without prior notice ...

Страница 37: ...___________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ __________________...

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