PRECISION PIPE AND CABLE LOCATION Instruction Manual
WARNINGS / NOTES WARNING The does not recalibrate, service or repair any C.Scope Cable Avoidance Tool, Locator, Signal Generator or Transmitter. The does confirm if the C.Scope product is fit for use. WARNING If a C.Scope Locator, Signal Generator or Transmitter fails any of the Condition Checks or Performance Checks detailed in this manual then it should be withdrawn from service immediately and returned to a C.Scope Authorised Service Centre. WARNING Only use the in an area that has been scanned and found to be suitable for use, as described on page 8 in the Selecting a suitable location section. NOTE In order to be able to carry out Performance Checks using the, it is necessary to be familiar with the operation of the C.Scope equipment that is to be checked. Training is available from C.Scope comprising the full and correct use of all C.Scope location equipment (see page 78). 2
Contents Warnings 2 Introduction 4 Using this Manual 5 Features 6-7 Selecting a suitable location 8 CONDITION CHECKS C.SCOPE LOCATORS CABLE AVOIDANCE TOOL / XD CXL / DXL MXL 9-10 CONDITION CHECKS C.SCOPE SIGNAL GENERATORS AND TRANSMITTERS SGA Signal Generator Black / Grey SGV Signal Generator Black / Grey MXT Signal Generator pre 2003 11-12 PERFORMANCE CHECKS C.SCOPE LOCATORS CABLE AVOIDANCE TOOL / XD 14-19 TABLE 20-21 CXL / DXL 22-27 TABLE 28-29 MXL 30-37 TABLE 38-41 PERFORMANCE CHECKS C.SCOPE SIGNAL GENERATORS AND TRANSMITTERS SGA Signal Generator Black / Grey 43-47 TABLE 48-49 SGV Signal Generator Black / Grey 50-55 TABLE 56-57 MXT 58-65 TABLE 66-67 Signal Generator pre 2003 68-73 TABLE 74-75 Maintenance/General Symbols 76 Technical Specification 77 Support Services Training/Servicing/Repairs 78 3
Introduction The C.Scope is a simple-to-use product that allows the performance of C.Scope Cable Avoidance Tools, Locators, Signal Generators and Transmitters to be checked. The robust and portable is battery operated, and designed for use in a variety of locations such as at a depot or out on site. It can test a wide range of C.Scope equipment, to confirm that they are operating correctly. The will not identify if a C.Scope product has suffered any form of mechanical damage that has compromised its structural integrity or ability to withstand water or dust ingress UNLESS that damage has also affected electronic performance. The Condition Checks also detailed in this Manual are an essential part of the checking process to identify such damage and MUST be carried out on every unit. Correct use of the allows the operator to confirm that the product is detecting the signals it is designed to detect (in the case of C.Scope Locators) or transmitting the signals it is designed to transmit (in the case of C.Scope Signal Generators and Transmitters). The following C.Scope products are covered in this manual: C.Scope CXL Locator C.Scope DXL Locator C.Scope MXL Locator C.Scope Cable Avoidance Tool C.Scope Cable Avoidance Tool XD C.Scope grey SGA Signal Generator C.Scope black SGA Signal Generator C.Scope grey 1Watt SGV Signal Generator C.Scope black SGV Signal Generator C.Scope MXT Transmitter C.Scope Signal Generator (pre 2003) It is important to note that the does not recalibrate, service, repair or alter in any way, the operation of any C.Scope product. WARNING If a C.Scope product fails any of the Condition Checks or Performance Checks then it should be withdrawn from service immediately and returned to a C.Scope Authorised Service Centre. 4
Using this Manual The allows Performance Checks to be carried out on a wide range of C.Scope Cable Avoidance Tools, Locators, Signal Generators and Transmitters with each model covered in a specific section of this manual. It is essential to identify exactly which C.Scope product you wish to test before attempting any of the Checks. All C.Scope products should undergo two distinct types of checking: Condition Checks and Performance Checks. This manual has sections devoted to both of these procedures and it is important that both are carried out for every product. The Condition Checks should always be completed before the Performance Checks. Condition Checks for all C.Scope Locators are covered in the section Condition Checks C.Scope Locators on pages 9-10. Condition Checks for all C.Scope Signal Generators or Transmitters are covered in the section Condition Checks C.Scope Signal Generators and Transmitters on pages 11-12. 5
Features Terminals. Control buttons. Liquid Crystal Display (LCD) The LCD indicates: Operating frequency (where appropriate). Power mode. Radio mode. Method of Testing. Battery condition. Signal levels received when testing Signal Generators or Transmitters. 6
Features ON/OFF The will automatically turn off five minutes after the last button press. MODE Selects and cycles through the four modes of operation: for testing the induced output signal of C.Scope Signal Generators and Transmitters. for testing connected output signal of C.Scope Signal Generators and Transmitters. for testing the CXL, DXL and MXL Locators. for testing the Cable Avoidance Tool and Cable Avoidance Tool XD. POWER Selects the Power test signal for Locator testing. RADIO Selects the Radio test signal for Locator testing. FREQUENCY Selects the Generator/Transmitter Mode test signal for Locator testing. 7
Selecting a suitable location In order for the to correctly Performance Check a C.Scope product it is important that there are no strong background electromagnetic signals present that may cause interference. Therefore, the intended location for using the should be checked for background electromagnetic signals before use. This can be achieved by scanning the area using the Power and Radio Modes of a Locator. If the Locator indicates no large power or radio signals then the area should be suitable for testing. (Generally, large signals are those that are detectable with the Locator sensitivity control set at 50% or less on either mode). NOTE Electromagnetic signals can be caused or influenced by any of the following: The operation of other Signal Generators/Transmitters and Sondes in the same area as the. Nearby electrical plant such as transformers or main switch boards. Live overhead or underground electricity cables directly above or below the. Large metal objects such as steel workbenches or filing cabinets. Vehicles or plant in close proximity to the. Metal-based flooring, including steel reinforced concrete. 8
Condition Checks C.Scope Locators The following C.Scope Locators are covered in this section: C.Scope CXL Locator C.Scope DXL Locator C.Scope MXL Locator C.Scope Cable Avoidance Tool C.Scope Cable Avoidance Tool XD The following Condition Checks MUST be carried out prior to Performance Checking any C.Scope Locator with the. These Condition Checks are designed to identify if there is any mechanical deterioration to the Locator under test that may compromise performance or make the product vulnerable to water or dust ingress. If the Locator does not pass all of the Condition Checks then it should be withdrawn from service immediately and returned to a C.Scope Authorised Service Centre. Loudspeaker Display ON/OFF Switch Sensitivity Control Mode Switch Battery Compartment Labels Wear Foot 9
Condition Checks C.Scope Locators NOTE It may be necessary to clean the Locator before performing the Condition Checks. 1. Carefully inspect the Locator case for damage or deterioration such as cracks or distortion. 2. Check all case securing screws are in place. 3. Check that the Wear Foot is in good condition and is securely fixed to the Locator. 4. Examine the condition of all the labels ensuring they are intact and all text is legible. 5. Check that the Loudspeaker can be unclipped from the body, that the cable is undamaged and that the Loudspeaker can be easily withdrawn and then refitted. 6. Examine the condition of the display for any cracks or excessive scratching. 7. Check that the Sensitivity Control rotates freely over three quarters of a turn without any binding and has a definite stop position at each end. 8. Check that the Mode Switch has definite stop positions for each mode. 9. Check that the ON/OFF Switch operates smoothly and does not stick. 10. Inspect the battery compartment for any sign of dirt or water. 11. Ensure the Battery Cover is in place and locks tightly shut and that the Battery Cover seal is in good condition. 12. Inspect the Battery Holder for deterioration, distortion or corrosion. Replace if necessary. 13. Confirm that the spare Battery Holder is present and inspect for deterioration, distortion or corrosion. Replace if necessary. 14. Check that the batteries are in good condition. Replace batteries if incorrectly fitted, damaged or corroded. 10
Condition Checks C.Scope Signal Generators and Transmitters The following C.Scope Signal Generators and Transmitter are covered in this section: C.Scope grey SGA Signal Generator C.Scope black SGA Signal Generator C.Scope grey 1Watt SGV Signal Generator C.Scope black SGV Signal Generator C.Scope MXT Transmitter C.Scope Signal Generator (Pre-2003) Auxiliary Earth Lead Socket. Direct Connection Socket. Auxiliary 10m Earth Lead. Direct Connection Lead. The following Condition Checks MUST be carried out prior to Performance Checking any C.Scope Signal Generator or Transmitter with the. These Condition Checks are designed to identify if there is any mechanical deterioration to the product under test that may compromise performance or make the product vulnerable to water or dust ingress. If the Signal Generator or Transmitter does not pass all of the Condition Checks then it should be withdrawn from service immediately and returned to a C.Scope Authorised Service Centre. Crocodile Clips and Connection Magnets. Accessory Tray. Accessory Tray Retaining Clips. Battery Compartment. Batteries. 11
Condition Checks C.Scope Signal Generators and Transmitters NOTE It may be necessary to clean the Signal Generator/ Transmitter before performing the Condition Checks. 1. Carefully inspect the Signal Generator/ Transmitter case for damage or deterioration such as cracks or distortion. 2. Check all case securing screws are in place. 3. Examine the condition of all the labels ensuring they are intact and all text is legible. 4. Check the operation of any switches/push buttons. 5. (SGV/MXT only) Examine the display for any cracks or excessive scratching. 6. Remove the Battery Cover and check the compartment for any sign of dirt or water or corrosion. 7. (Pre-2003 Signal Generator only) Inspect the Battery Holder for damage or deterioration such as cracks, distortion or corrosion. 8. Check that the batteries are in good condition. Replace batteries if incorrectly fitted, damaged or corroded. 9. (SGA/SGV/MXT) Replace the Battery Cover, ensuring that the screws are finger tight and that the Battery Cover seal is in good condition. 10. (Pre-2003 Signal Generator only) Replace the Battery Cover, ensuring that the securing studs are in place. 11. Check that the Direct Connection Leads, Auxiliary Earth Lead and Earth Stake are present. Replace if missing. 12. Inspect all leads for any damage to the cables or crocodile clips. Replace if damaged. 13. (SGA/ black SGV/ Pre-2003 Signal Generator) Check that magnets are fitted to the Direct Connection and Earth Leads. 14. (grey 1Watt SGV/MXT only) Check that the plastic covers are fitted to the crocodile clips. Replace if damaged or missing. 15. (grey 1Watt SGV/MXT only) Check that magnets are present as separate accessories. 16. (SGA/SGV/MXT) Check that the Accessory Tray can be clipped on to the base of the unit. 17. (Pre-2003 Signal Generator only) Check that the lid closes and locks shut. 12
Performance Checks C.Scope Locators 13
Performance checking Cable Avoidance Tool / XD NOTE In order to carry out Performance Checks using the, it is necessary to be familiar with the correct operation of the C.Scope Locator to be tested. NOTE Only use the in an area that has been scanned and found to be suitable for use, as described in the Selecting a suitable location section on page 8. These tests should NOT be carried out in the close vicinity of any active Signal Generators, Transmitters or Sondes. 1. Place the on the ground with the Accessory Tray securely clipped to the underside of the. 2. Switch ON the. Check the Battery Condition Indicator in the bottom left hand corner of the display. If there is only one segment or no segments of the indicator filled in then the batteries must be replaced before the can be used. Battery Indicator Battery Levels OK Replace Batteries 3. Position the Locator alongside the with the base of the Locator touching the ground and one of the Accessory Tray Retaining Clips. NOTE The Locator can be placed either side of the but must be touching the side and held vertically. If the Locator is transferred from one side of the to the other the same visual response should occur on the Locator. This can be a good indication that there are no interfering signals from nearby sources. If the Locator responses are not the same then try testing in a different location. 14
Performance checking Cable Avoidance Tool / XD 4. Press the M button on the. Repeat until L2 is displayed. 5. Press the Power button on the. The Power icon should be displayed. 6. Turn the Locator ON by pulling up on the ON/OFF trigger and check the battery condition using the Battery Condition Indicator in the bottom left hand corner of the display. CORRECT RESULT: The Locator should emit a clear audible battery check tone for one second and the Battery Condition Indicator should show at least 2 segments. Replace the batteries if necessary. Battery Indicator Battery Levels OK Replace Batteries 7. Select Power mode on the Locator. CORRECT RESULT: Confirm that the Power mode icon is showing on the Locator display. Cable Avoidance Tool / XD 15
Performance checking Cable Avoidance Tool / XD 8. Check the correct operation of the Sensitivity Control by adjusting it first fully clockwise (maximum sensitivity) and then fully anti-clockwise (minimum sensitivity). CORRECT RESULT: The Locator bar graph should change from showing a full-scale response when on maximum sensitivity to no response at all when on minimum sensitivity. 3/4 turn 3/4 turn Cable Avoidance Tool / XD Cable Avoidance Tool / XD NOTE If the bar graph does not drop to zero when on minimum sensitivity it may be due to background electromagnetic signals. Refer to the Selecting a suitable location section on page 8. 9. Rotate the Sensitivity Control so that the bar graph shows a mid-scale response with the audio tone sounding. Slide the Locator along the side of the to find the position of maximum signal, re-adjusting the sensitivity, if necessary, to keep the indication at mid-scale. CORRECT RESULT: The Sensitivity Control should now be at a rotation of approximately a one-quarter turn from minimum. 1/4 turn Cable Avoidance Tool / XD NOTE It is important to NOT adjust the sensitivity setting of the Locator or to move it from this position for the remaining tests. 16
Performance checking Cable Avoidance Tool / XD 10. Select Radio on the. The Radio icon should be displayed. 11. Select Radio mode on the Locator. CORRECT RESULT: Confirm that the Radio mode icon is showing on the Locator display. The Locator bar graph should show a mid-scale response with the audio tone sounding. Cable Avoidance Tool / XD 12. Press the Frequency button on the. The display should show 33kHz. 13. Select Generator mode on the Locator. CORRECT RESULT: Confirm that the 33kHz icon is showing on the Locator display. The Locator bar graph should show a mid-scale response with the audio tone sounding. Cable Avoidance Tool / XD 17
Performance checking Cable Avoidance Tool / XD 14. DEPTH CHECKING - XD only Press the M button on the. Repeat until L1 is displayed. 1m 15. DEPTH CHECKING - XD only Position the XD with the Wear Foot of the Locator at a measured distance of 1metre from the and in line with it (exactly as shown in the diagram). 1m 1m 16. DEPTH CHECKING - XD only Select Generator mode on the Locator. 18
Performance checking Cable Avoidance Tool / XD 17. DEPTH CHECKING - XD only Carry out a SONDE depth measurement by pressing the depth button twice and holding on the second press. CORRECT RESULT: The word SONDE will flash on the display and a depth of between 0.85m and 1.20m will be indicated. Cable Avoidance Tool XD NOTE It is essential that the depth button is pressed twice in quick succession to select SONDE depth measurement (indicated by the word SONDE appearing on the screen) and not a Line depth measurement as this will give an incorrect reading. NOTE The XD displays depths to the nearest 0.15m in Sonde Mode and so the indicated depth may vary by 0.15m depending on how close it is to indicating the next depth level. If all of the Condition Checks (pages 9-10) and Performance Checks (pages 14-19) have been completed successfully then the Locator is operating correctly in all three modes. 19
Performance checking TABLE Cable Avoidance Tool / XD Ensure that Locator and are positioned as described on page 14 for all Cable Avoidance Tool / XD Performance Checks. Sensitivity Settings Display Locator Settings CORRECT RESULT Maximum Sensitivity 3/4 turn Minimum Sensitivity 3/4 turn 20
Performance checking TABLE Cable Avoidance Tool / XD Ensure that Locator Sensitivity is set as described on page 16 for all Cable Avoidance Tool / XD Performance Checks. Mode Settings Display Locator Settings CORRECT RESULT Power Mode 1/4 turn Radio Mode 1/4 turn Generator Mode 1/4 turn Depth Mode (XD only) 21
Performance checking CXL / DXL NOTE In order to carry out Performance Checks using the, it is necessary to be familiar with the correct operation of the C.Scope Locator to be tested. NOTE Only use the in an area that has been scanned and found to be suitable for use, as described in the Selecting a suitable location section on page 8. These tests should NOT be carried out in the close vicinity of any active Signal Generators, Transmitters or Sondes. 1. Place the on the ground with the Accessory Tray securely clipped to the underside of the. 2. Switch ON the. Check the Battery Condition Indicator in the bottom left hand corner of the display. If there is only one segment or no segments of the indicator filled in then the batteries must be replaced before the can be used. Battery Indicator Battery Levels OK Replace Batteries 3. Position the Locator alongside the with the base of the Locator touching the ground and one of the Accessory Tray Retaining Clips. NOTE The Locator can be placed either side of the but must be touching the side and held vertically. If the Locator is transferred from one side of the to the other the same visual response should occur on the Locator. This can be a good indication that there are no interfering signals from nearby sources. If the Locator responses are not the same then try testing in a different location. 22
Performance checking CXL / DXL 4. Press the M button on the. Repeat until L1 is displayed. 5. Press the Power button on the. The Power icon should be displayed. 6. Turn the Locator ON by pulling up on the ON/OFF trigger and check the battery condition using the Battery Condition Indicator in the bottom left hand corner of the display. CORRECT RESULT: The Locator should emit a clear audible battery check tone for one second and the Battery Condition Indicator should show at least 2 segments. Replace the batteries if necessary. Battery Indicator Battery Levels OK Replace Batteries 7. Select Power mode on the Locator. CORRECT RESULT: Confirm that the Power mode icon is showing on the Locator display. CXL / DXL Locator 23
Performance checking CXL / DXL 8. Set the Sensitivity Control fully anti-clockwise and slide the Locator along the side of the to find the position of maximum signal. CORRECT RESULT: The Locator bar graph should show a mid-scale response with the audio tone sounding. 3/4 turn CXL / DXL Locator NOTE It is important to NOT move the Locator from this position for the remaining Performance Checks. NOTE If the bar graph does not reduce to a mid-scale response when on minimum sensitivity it may be due to background electromagnetic signals. Refer to the Selecting a suitable location section on page 8. 9. Check the correct operation of the Sensitivity Control by adjusting it first fully clockwise (maximum sensitivity) and then fully anti-clockwise (minimum sensitivity). CORRECT RESULT: The Locator bar graph should change from showing a full-scale response when on maximum sensitivity to a mid-scale response when on minimum sensitivity. 3/4 turn 3/4 turn CXL / DXL Locator CXL / DXL Locator NOTE It is important to NOT adjust the sensitivity setting of the Locator for the remaining Performance Checks. 24
Performance checking CXL / DXL 10. Select Radio on the. The Radio icon should be displayed. 11. Select Radio mode on the Locator. CORRECT RESULT: Confirm that the Radio mode icon is showing on the Locator display. The Locator bar graph should show a mid-scale response with the audio tone sounding. CXL / DXL Locator 12. Select Power on the. The Power icon should be displayed. 13. Select All Scan mode on the Locator. CORRECT RESULT: Confirm that the All Scan mode icon is showing on the Locator display. The Locator bar graph should show a full-scale response with the audio tone sounding. CXL / DXL Locator 25
Performance checking CXL / DXL 14. Press the Frequency button on the. Repeat until the display shows 33kHz. 15. Select Generator mode on the Locator. CXL / DXL Locator CORRECT RESULT: Confirm that the 33kHz icon is showing on the Locator display. The Locator bar graph should show a mid-scale response with the audio tone sounding. 26
Performance checking CXL / DXL 16. DEPTH CHECKING - DXL only Place the DXL above the with the Wear Foot of the DXL resting on the handle of the and in line with it. 17. DEPTH CHECKING - DXL only Select Generator mode on the Locator. 18. DEPTH CHECKING - DXL only Carry out a SONDE depth measurement by pressing the depth button twice and holding on the second press. CORRECT RESULT: The word SONDE will appear on the display and a depth measurement of 0.12m / 0.13m will be indicated. DXL Locator NOTE It is essential that the depth button is pressed twice in quick succession to select SONDE depth measurement (indicated by the word SONDE appearing on the screen) and not a Line depth measurement as this will give an incorrect reading. NOTE Depth measurement accuracy can be confirmed by holding the DXL a measured distance above the handle of the and repeating the test procedure. If all of the Condition Checks (pages 9-10) and Performance Checks (pages 22-27) have been completed successfully then the Locator is operating correctly in all four modes. 27
Performance checking TABLE CXL / DXL Ensure that Locator and are positioned as described on page 22 for all CXL / DXL Performance Checks. Sensitivity Settings Display Locator Settings CORRECT RESULT Maximum Sensitivity 3/4 turn Minimum Sensitivity 3/4 turn 28
Performance checking TABLE CXL / DXL Mode Settings Display Locator Settings CORRECT RESULT Power Mode 3/4 turn Radio Mode 3/4 turn All Scan Mode 3/4 turn Generator Mode 3/4 turn Depth Mode (DXL only)
Performance checking MXL NOTE In order to carry out Performance Checks using the, it is necessary to be familiar with the correct operation of the C.Scope Locator to be tested. NOTE Only use the in an area that has been scanned and found to be suitable for use, as described in the Selecting a suitable location section on page 8. These tests should NOT be carried out in the close vicinity of any active Signal Generators, Transmitters or Sondes. 1. Place the on the ground with the Accessory Tray securely clipped to the underside of the. 2. Switch ON the. Check the Battery Condition Indicator in the bottom left hand corner of the display. If there is only one segment or no segments of the indicator filled in then the batteries must be replaced before the can be used. Battery Indicator Battery Levels OK Replace Batteries 3. Position the Locator alongside the with the base of the Locator touching the ground and one of the Accessory Tray Retaining Clips. NOTE The Locator can be placed either side of the but must be touching the side and held vertically. If the Locator is transferred from one side of the to the other the same visual response should occur on the Locator. This can be a good indication that there are no interfering signals from nearby sources. If the Locator responses are not the same then try testing in a different location. 30
Performance checking MXL 4. Press the M button on the. Repeat until L1 is displayed. 5. Press the Power button on the. The Power icon should be displayed. 6. Turn the Locator ON by pulling up on the ON/OFF trigger and check the battery condition using the Battery Condition Indicator in the bottom left hand corner of the display. CORRECT RESULT: The Locator should emit a clear audible battery check tone for one second and the Battery Condition Indicator should show at least 2 segments. Replace the batteries if necessary. Battery Indicator Battery Levels OK Replace Batteries 7. Select Power mode on the Locator. CORRECT RESULT: Confirm that the Power mode icon is showing on the Locator display. MXL Locator 31
Performance checking MXL 8. Set the Sensitivity Control fully anti-clockwise and slide the Locator along the side of the to find the position of maximum signal. CORRECT RESULT: The Locator bar graph should show a mid-scale response with the audio tone sounding. 3/4 turn MXL Locator NOTE It is important to NOT move the Locator from this position for the remaining Performance Checks. NOTE If the bar graph does not reduce to a mid-scale response when on minimum sensitivity it may be due to background electromagnetic signals. Refer to the Selecting a suitable location section on page 8. 9. Check the correct operation of the Sensitivity Control by adjusting it first fully clockwise (maximum sensitivity) and then fully anti-clockwise (minimum sensitivity). CORRECT RESULT: The Locator bar graph should change from showing a full-scale response when on maximum sensitivity to a mid-scale response when on minimum sensitivity. 3/4 turn 3/4 turn MXL Locator MXL Locator NOTE It is important to NOT adjust the sensitivity setting of the Locator for the remaining Performance Checks. 32
Performance checking MXL 10. Select Radio on the. The Radio icon should be displayed. 11. Select Radio mode on the Locator. CORRECT RESULT: Confirm that the Radio mode icon is showing on the Locator display. The Locator bar graph should show a mid-scale response with the audio tone sounding. MXL Locator 12. Select Power on the. The Power icon should be displayed. 13. Select All Scan mode on the Locator. CORRECT RESULT: Confirm that the All Scan mode icon is showing on the Locator display. The Locator bar graph should show a full-scale response with the audio tone sounding. MXL Locator 33
Performance checking MXL 14. Press the Frequency button on the. Repeat until the display shows 33kHz. 15. Select Transmitter mode on the Locator. Select 33kHz using the Frequency button on the Locator. CORRECT RESULT: Confirm that the 33kHz icon is showing on the Locator display. The Locator bar graph should show a mid-scale response with the audio tone sounding. MXL Locator 34
Performance checking MXL 16. Press the Frequency button on the. Repeat until the display shows LF. The will alternate between transmitting a 512Hz and a 640Hz LF signal with the numbers 512 and 640 alternating on the display. (display alternates between 512 and 640 ) 17. Select LF using the Frequency button on the Locator. CORRECT RESULT: Confirm that the LF icon is showing on the Locator display. The Locator bar graph should alternate between showing a mid-scale response with the audio tone sounding and no response at all. MXL Locator NOTE The MXL Locator is responding to the low frequency signal it is set to (either 512 or 640Hz). WARNING The MXT Transmitter that accompanies the MXL Locator being tested should have a matching LF frequency (512Hz or 640Hz). 18. Press the Frequency button on the. Repeat until the display shows 8kHz. 35
Performance checking MXL 19. Select 8kHz using the Frequency button on the Locator. CORRECT RESULT: Confirm that the 8kHz icon is showing on the Locator display. The Locator bar graph should show a mid-scale response with the audio tone sounding. MXL Locator 20. Press the Frequency button on the. Repeat until the display shows 33kHz. 21. Place the Locator above the with the Wear Foot of the Locator resting on the handle of the and in line with it. 36
Performance checking MXL 22. Select 33kHz using the Frequency button on the Locator. The 33kHz icon should show on the Locator display and the audio tone should be sounding. MXL Locator 23. Carry out a SONDE depth measurement by pressing the depth button twice and holding on the second press. CORRECT RESULT: The word SONDE will appear on the display and a depth measurement of 0.12m / 0.13m will be indicated. MXL Locator NOTE Depth measurement accuracy can be confirmed by holding the MXL a measured distance above the handle of the and repeating the test procedure. NOTE It is essential that the depth button is pressed twice in quick succession to select SONDE depth measurement (indicated by the word SONDE appearing on the screen) and not a Line depth measurement as this will give an incorrect reading. 24. Press and hold the Signal Current Measurement button. CORRECT RESULT: The LO icon will appear on the Locator screen. MXL Locator If all of the Condition Checks (pages 9-10) and Performance Checks (pages 30-37) have been completed successfully then the Locator is operating correctly in all four modes and at all frequencies. 37
Performance checking TABLE MXL Ensure that Locator and are positioned as described on page 30 for all MXL Performance Checks. Ensure that Locator Sensitivity is set as described on page 32 for all MXL Performance Checks. Sensitivity Settings Display Locator Settings CORRECT RESULT Maximum Sensitivity 3/4 turn Minimum Sensitivity 3/4 turn 38
Performance checking TABLE MXL Mode Settings Display Locator Settings CORRECT RESULT Power Mode 3/4 turn Radio Mode 3/4 turn All Scan Mode 3/4 turn 39
Performance checking TABLE MXL Mode Settings Display Locator Settings CORRECT RESULT 33kHz Transmitter Mode 3/4 turn LF Transmitter Mode Note: display * alternates between 512 and 640 * 3/4 turn 8kHz Transmitter Mode 3/4 turn 40
Performance checking TABLE MXL Mode Settings Display Locator Settings CORRECT RESULT Depth Mode 3/4 turn Signal Current Measurement Mode 41
42 Performance Checks C.Scope Signal Generators and Transmitters
Performance checking SGA Signal Generator - black/grey NOTE In order to carry out Performance Checks using the, it is necessary to be familiar with the correct operation of the Signal Generator that is to be tested. NOTE Only use the in an area that has been scanned and found to be suitable for use, as described in the Selecting a suitable location section on page 8. These tests should NOT be carried out in the close vicinity of any active Signal Generators, Transmitters or Sondes. 1. Place the on the ground with the Accessory Tray securely clipped to the underside of the. 2. Switch ON the. Check the Battery Condition Indicator in the bottom left hand corner of the display. If there is only one segment or no segments of the indicator filled in then the batteries must be replaced before the can be used. Battery Indicator Battery Levels OK Replace Batteries 3. Position the Signal Generator head to head with the as shown making sure that nothing is plugged in to the Direct Connection Socket of the Signal Generator. 43
Performance checking SGA Signal Generator - black/grey 4. Press the M button on the. Repeat until Ind is shown on the display. 5. Switch ON the Signal Generator. The Signal Generator should automatically set itself to the High power, Continuous output and Loud audio settings and emit a loud continuous audio tone. CORRECT RESULT: The bar graph should show an indication of 2/3 full scale and the 33kHz icon should show in the top left hand corner on the display. NOTE If there is no audio tone, or the tone is interrupted every 2 seconds, then the batteries must be replaced. NOTE Moving the Signal Generator in any direction away from its correct position head to head with the Function Checker will cause a reduction in the bar graph response. 44
Performance checking SGA Signal Generator - black/grey 6. Reduce the Signal Generator power output using the Low Power button. CORRECT RESULT: The bar graph should show an indication of 2/10 full scale and the 33kHz icon should show in the top left hand corner on the display. 7. Return the Signal Generator to full power using the High Power button. 8. Press the Pulsed/Continuous button on the Signal Generator to select the pulsed signal output. CORRECT RESULT: The bar graph should now be flickering to indicate a pulsed signal. The Signal Generator will also change from a continuous tone to a pulsed tone. 9. Press the Loud/Mute button on the Signal Generator to select the Mute setting. CORRECT RESULT: The response should remain unchanged but the audio output from the Signal Generator should be quieter. 45
Performance checking SGA Signal Generator - black/grey 10. Return the Signal Generator to Continuous output. 11. Press the M button on the to select Con (connected). 12. Plug the Direct Connection Leads (red and black) into the socket on the Transmitter and check the Connected Mode icon is displayed at the top of the display. Attach a crocodile clip to each terminal on the. CORRECT RESULT: The audio response should change to a lower pitch as the second crocodile clip is attached to the second terminal. The bar graph should show an indication of 5/10 full scale and the 33kHz icon should show in the top left hand corner on the display. NOTE If the CORRECT RESULT is not achieved, the cause may be a set of faulty Direct Connection Leads. Replace with good leads and try the test again. 46
Performance checking SGA Signal Generator - black/grey 13. Detach the black Connection Lead from the Function Checker terminal (leaving the red Connection Lead attached) and confirm that the pitch of the audio rises. 14. Now plug the yellow 10m Auxiliary Earth Lead into the green socket on the Transmitter and attach the crocodile clip to the unused terminal on the. CORRECT RESULT: The audio response should change to a lower pitch as the second crocodile clip is attached to the second terminal. The bar graph should show an indication of 5/10 full scale and the 33kHz icon should show in the top left hand corner on the display. NOTE If the CORRECT RESULT is not achieved, the cause may be a faulty 10m Auxiliary Earth Lead. Replace with a good lead and try the test again. If all of the Condition Checks (pages 11-12) and Performance Checks (pages 43-47) have been completed successfully then the Signal Generator is operating correctly.l Generators, Transmitters or Sondes. 47
Performance checking TABLE SGA Signal Generator - black/grey Induction Mode Settings Display Signal Generator Settings CORRECT RESULT High Power Low Power Pulsed/ Continuous Loud/Mute 48
Performance checking TABLE SGA Signal Generator - black/grey Connected Mode Settings Display Signal Generator Settings CORRECT RESULT Direct Connection Lead Auxiliary Earth Lead 49
Performance checking SGV Signal Generator - black/grey NOTE In order to carry out Performance Checks using the, it is necessary to be familiar with the correct operation of the Signal Generator that is to be tested. NOTE Only use the in an area that has been scanned and found to be suitable for use, as described in the Selecting a suitable location section on page 8. These tests should NOT be carried out in the close vicinity of any active Signal Generators, Transmitters or Sondes. 1. Place the on the ground with the Accessory Tray securely clipped to the underside of the. 2. Switch ON the. Check the Battery Condition Indicator in the bottom left hand corner of the display. If there is only one segment or no segments of the indicator filled in then the batteries must be replaced before the can be used. Battery Indicator Battery Levels OK Replace Batteries 3. Position the Signal Generator head to head with the as shown making sure that nothing is plugged in to the Direct Connection Socket of the Signal Generator. 50
Performance checking SGV Signal Generator - black/grey 4. Press the M button on the. Repeat until Ind is shown on the display. 5. Switch ON the Signal Generator. Check the Battery Condition Indicator in the bottom left hand corner of the Signal Generator display. CORRECT RESULT: The Signal Generator should emit a clear audio tone. The Battery Indicator should show at least two filled segments on the Signal Generator display. Replace batteries if necessary. Battery Indicator Battery Levels OK Replace Batteries NOTE If the CORRECT RESULT is not achieved, then the Transmitter batteries must be replaced. 6. The Signal Generator should automatically set itself to highest power, Continuous Output and Loud audio settings. The Signal Generator display should show all four segments of the Output Power Level Indicator and the bar graph at full scale. The Induced mode icon should show in the top right hand corner and the 33kHz icon in the top left hand corner of the Signal Generator display. CORRECT RESULT: The bar graph should show an indication of 2/3 full scale and the 33kHz icon should show in the top left hand corner on the display. SGV Signal Generator NOTE Moving the Signal Generator in any direction away from its correct position head to head with the will cause a reduction in the bar graph response. 51
Performance checking SGV Signal Generator - black/grey 7. Successively reduce the Signal Generator output power using the Decrease Power button. The Signal Generator display should indicate the lower output levels on the bar graph. SGV Signal Generator CORRECT RESULT: The bar graph should also show a corresponding reduction in signal to a lowest reading of between 1/10 and 3/10 of full scale. 8. Return the Signal Generator to full power using the Increase Power button. Press the Pulsed/Continuous button on the Signal Generator to select the pulsed signal output. SGV Signal Generator CORRECT RESULT: The bar graph should now be flickering to indicate a pulsed signal. The Signal Generator audio response will also change from a continuous to a pulsed tone. 52
Performance checking SGV Signal Generator - black/grey 9. Press the Audio/Mute button on the Signal Generator to select the Mute setting. SGV Signal Generator CORRECT RESULT: The response should remain unchanged but the audio output from the Signal Generator should be quieter. The Speaker icon should show unfilled on the Signal Generator display. 10. Set the Signal Generator to Continuous output. SGV Signal Generator 11. Press the M button on the to select Con (connected). 53
Performance checking SGV Signal Generator - black/grey 12. Plug the Direct Connection Leads (red and black) into the socket on the Signal Generator and check the Connected Mode icon is displayed at the top of the display. Attach a crocodile clip to each terminal on the. SGV Signal Generator CORRECT RESULT: The audio response should change to a lower pitch as the second crocodile clip is attached to the second terminal. The Signal Generator bar graph should indicate a full scale response. The bar graph should show an indication of 5/10 full scale (for the black SGV) or 8/10 full scale (for the grey 1Watt SGV) and the 33kHz icon should show in the top left hand corner on the Function Checker display. display when checking BLACK SGV NOTE If the CORRECT RESULT is not achieved, the cause may be a set of faulty Direct Connection Leads. Replace with good leads and try the test again. display when checking GREY SGV 13. Detach the black Connection Lead from the Function Checker terminal (leaving the red Connection Lead attached) and confirm that the pitch of the audio rises. 54
Performance checking SGV Signal Generator - black/grey 14. Plug the yellow 10m Auxiliary Earth Lead into the green socket on the Signal Generator and attach the crocodile clip to the unused terminal on the. CORRECT RESULT: The audio response should change to a lower pitch as the second crocodile clip is attached to the second terminal. The Signal Generator bar graph should indicate a full scale response. The bar graph should show an indication of 5/10 full scale (for the black SGV) or 8/10 full scale (for the grey 1Watt SGV) and the 33kHz icon should show in the top left hand corner on the Function Checker display. display when checking BLACK SGV SGV Signal Generator display when checking GREY SGV NOTE If the CORRECT RESULT is not achieved, the cause may be a faulty 10m Auxiliary Earth Lead. Replace with a good lead and try the test again. If all of the Condition Checks (pages 11-12) and Performance Checks (pages 50-55) have been completed successfully then the Signal Generator is operating correctly. 55
Performance checking TABLE SGV Signal Generator - black/grey Induction Mode Highest Power Settings Display Signal Generator Settings Display CORRECT RESULT Lowest Power Pulsed/ Continuous Loud/Mute 56
Performance checking TABLE SGV Signal Generator - black/grey Connected Mode Direct Connection Lead Grey 1Watt SGV Auxiliary Earth Lead Grey 1Watt SGV Direct Connection Lead Black SGV Auxiliary Earth Lead Black SGV Settings Display Signal Generator Settings Display CORRECT RESULT 57
Performance checking MXT Transmitter NOTE In order to carry out Performance Checks using the, it is necessary to be familiar with the correct operation of the Transmitter that is to be tested. NOTE Only use the in an area that has been scanned and found to be suitable for use, as described in the Selecting a suitable location section on page 8. These tests should NOT be carried out in the close vicinity of any active Signal Generators, Transmitters or Sondes. 1. Place the on the ground with the Accessory Tray securely clipped to the underside of the. 2. Switch ON the. Check the Battery Condition Indicator in the bottom left hand corner of the display. If there is only one segment or no segments of the indicator filled in then the batteries must be replaced before the can be used. Battery Indicator Battery Levels OK Replace Batteries 3. Position the Transmitter head to head with the as shown making sure that nothing is plugged in to the Direct Connection Socket of the Transmitter. 58
Performance checking MXT Transmitter 4. Press the M button on the. Repeat until Ind is shown on the display. 5. Switch ON the Transmitter. Check the Battery Condition Indicator in the bottom left hand corner of the Transmitter display. Battery Indicator CORRECT RESULT: The Transmitter should emit a clear audio tone. The Battery Indicator should show at least two filled segments on the Transmitter display. Replace batteries if necessary. NOTE If the CORRECT RESULT is not achieved, then the Transmitter batteries must be replaced. Battery Levels OK Replace Batteries 6. Select the highest output power, Continuous Output, a frequency of 33kHz and Loud audio settings. The Transmitter display should show all four segments of the Output Power Level Indicator and the bar graph at full scale. The Induced mode icon should show in the top right hand corner and the 33kHz icon in the top left hand corner of the Signal Generator display. CORRECT RESULT: The bar graph should show an indication of 2/3 full scale and the 33kHz icon should show in the top left hand corner of the display. MXT Transmitter NOTE Moving the Transmitter in any direction away from its correct position head to head with the will cause a reduction in the bar graph response. 59
Performance checking MXT Transmitter 7. Press the Output Power Level button on the Transmitter. Check that the Transmitter Output Power Level Indicator shows one segment and the bar graph shows an indication of 1/10 full scale on the Transmitter display. MXT Transmitter 8. Successively increase the Transmitter output power using the Output Power Level button. The Transmitter display should indicate the higher ouput levels on the bar graph. CORRECT RESULT: The bar graph should also show a corresponding increase from 1/10 full scale to 2/3 full scale. MXT Transmitter 60
Performance checking MXT Transmitter 9. Press the Pulsed/Continuous button on the Transmitter to select the pulsed signal output. MXT Transmitter CORRECT RESULT: The bar graph should now be flickering to indicate a pulsed signal. The Transmitter audio will also change from a continuous tone to a pulsed tone. 10. Press the Loud/Mute button on the Transmitter to select the Mute setting. CORRECT RESULT: The response should remain unchanged but the audio output from the Transmitter should be quieter. The Speaker icon should show unfilled on the Transmitter display. MXT Transmitter 61
Performance checking MXT Transmitter 11. Select 8kHz on the Transmitter. MXT Transmitter CORRECT RESULT: The bar graph should show an indication of 2/3 full scale and the 8kHz icon should show in the top left hand corner of the Function Checker display. NOTE LF frequency is only available in Connected Mode. 62
Performance checking MXT Transmitter 12. Set the Transmitter to full power, Continuous output and 33kHz. 13. Press the M button on the to select Con (connected). 14. Plug the Direct Connection Leads (red and black) into the socket on the Transmitter and check the Connected Mode icon is displayed at the top of the display. Attach a crocodile clip to each terminal on the. CORRECT RESULT: The audio response should change to a lower pitch as the second clip is attached to the second terminal and the Transmitter bar graph should indicate a full scale response. The bar graph should show an indication of 8/10 full scale and the 33kHz icon should show in the top left hand corner on the Function Checker display. MXT Transmitter NOTE If the CORRECT RESULT is not achieved, the cause may be a set of faulty Direct Connection Leads. Replace with good leads and try the test again. 63
Performance checking MXT Transmitter 15. Detach the black Connection Lead from the Function Checker terminal (leaving the red Connection Lead attached) and confirm that the pitch of the audio rises. MXT Transmitter 16. Plug the yellow 10m Auxiliary Earth Lead into the green socket on the Transmitter and attach the crocodile clip to the unused terminal on the. CORRECT RESULT: The audio response should change to a lower pitch as the second clip is attached to the second terminal. The Transmitter bar graph should show a full scale response. The bar graph should show an indication of 8/10 full scale and the 33kHz icon should show in the top left hand corner on the display. NOTE If the CORRECT RESULT is not achieved, the cause may be a faulty 10m Auxiliary Earth Lead. Replace with a good lead and try the test again. 64
Performance checking MXT Transmitter 17. Select LF on the Transmitter. CORRECT RESULT: The bar graph should show an indication of 8/10 full scale and the LF icon should show in the top left hand corner on the display. * Note: display alternates between Con and 512 or Con and 640 depending which frequency MXT Transmitter you are checking. * WARNING The MXL Locator that accompanies the MXT Transmitter being tested should have a matching LF frequency (512Hz or 640Hz). 18. Select 8kHz on the Transmitter. CORRECT RESULT: The bar graph should show an indication of 8/10 full scale and the 8kHz icon should show in the top left hand corner on the display. If all of the Condition Checks (pages 11-12) and Performance Checks (pages 58-65) have been completed successfully then the Signal Generator is operating correctly. 65
Performance checking TABLE MXT Transmitter Induction Mode Settings Display Transmitter Settings Display CORRECT RESULT 33kHz Highest Power 33kHz Lowest Power Pulsed/ Continuous High Power Loud/Mute 8kHz
Performance checking TABLE MXT Transmitter Connected Mode Direct Connection Lead Settings Display Transmitter Settings Display CORRECT RESULT Auxiliary Earth Lead Low Frequency (512/ 640Hz) * 8kHz Note: display alternates between Con and 512 or Con and 640 depending which frequency MXT Transmitter you are checking. * 67
68 Performance Checks C.Scope Signal Generator pre 2003 model
Performance checking Signal Generator pre-2003 model NOTE In order to carry out Performance Checks using the, it is necessary to be familiar with the correct operation of the Signal Generator that is to be tested. NOTE Only use the in an area that has been scanned and found to be suitable for use, as described in the Selecting a suitable location section on page 8. These tests should NOT be carried out in the close vicinity of any active Signal Generators, Transmitters or Sondes. 1. Place the on the ground with the Accessory Tray securely clipped to the underside of the. 2. Switch ON the. Check the Battery Condition Indicator in the bottom left hand corner of the display. If there is only one segment or no segments of the indicator filled in then the batteries must be replaced before the can be used. Battery Indicator Battery Levels OK Replace Batteries 3. Position the Signal Generator and exactly as shown. Ensure that nothing is plugged in to the Direct Connection Socket of the Signal Generator. Incorrect position and orientation Correct position and orientation 69
Performance checking Signal Generator pre-2003 model 7. Gradually reduce the Signal Generator power output by turning the ON-OFF/Level control anti-clockwise. CORRECT RESULT: The bar graph should show a corresponding decrease in indication to zero. 8. Reset the Signal Generator to full power using the ON-OFF/Level control. Change the Pulsed/Continuous switch on the Signal Generator to the down position (pulsed). CORRECT RESULT: The bar graph should now be flickering to indicate a pulsed signal. The Signal Generator audio tone will change from a continuous tone to a pulsed tone. 9. Change the Loud/Mute switch on the Signal Generator to the down position (mute). CORRECT RESULT: The response should remain unchanged but the audio output from the Signal Generator should be quieter. 70