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HT HT-5000 User Manual Download Page 23

   HT-5000 

 

 

EN - 22

4 

With a steady grip, hold the receiver perpendicular to the position of a 
known metallic conductor, e.g. above a location which was marked 
during the site survey. The signal strength bargraph should show 
zero (see paragraph 4.3.2). In doing so, the tip of the receiver should 
touch the ground 

5 

Rotate the receiver (through its own axis) over this location until the 
maximum signal strength is indicated (see paragraph 4.3.1.2) 

Press the 

 button to begin measuring the depth 

For 

automatic

depth measure 

(while working in 

TRANSMITTER

or 

PROBE

 mode)… 

For making a 

rough estimate

 of 

the depth (while working in 

RADIO

 or 

POWER GRID

 

mode).... 

6 

…the depth value is displayed ( 
 

 

 
The other steps can be skipped 

…the herewith symbol is shown 
 

 

 

continue from 

step 7 

7 

Move slowly to one side until the following symbol appears in the 
display and an acoustic signal sounds: 

 

8 

Mark this spot, then move in the opposite direction to the other side of 
the line until the symbol appears in the display again 

Mark this spot as well, then measure the distance between the two 
spots 

9 

Result:

 Half the distance between the two spots corresponds 

approximately to the depth of the line 
 

 

 

 

1 

Distance 

Depth 

Summary of Contents for HT-5000

Page 1: ... Copyright HT ITALIA 2009 Release IT 1 00 16 03 2009 ENGLISH User manual ...

Page 2: ...TX5000 14 4 3 Use of receiver RX5000 15 4 3 1 Modes of operation for the receiver RX5000 15 4 3 1 1 Regulating the sensitivity level to match the reception signal strength 16 4 3 1 2 Handling the receiver and locating the line 17 4 3 1 3 Changing of the system settings 18 4 3 2 General site surveying 19 4 3 3 Determining the direction of a line 20 4 3 4 Determining the depth of a line 21 4 3 5 Fun...

Page 3: ...nd reliable operation The use of other parts is not permitted and shall result in termination of the warranty Connections to live cables should be made by qualified personnel Keep you insulated from the object under test Do not touch exposed metal parts such as test lead ends sockets fixing objects circuits etc Avoid doing that if you notice anomalous conditions such as breakages deformations frac...

Page 4: ... environments 3 PREPARATION FOR USE 3 1 INITIAL This instrument was checked both mechanically and electrically prior to shipment All possible cares and precautions were taken to let you receive the instrument in perfect conditions Notwithstanding we suggest you to check it rapidly eventual damages may have occurred during transport if so please contact the local distributor from whom you bought th...

Page 5: ...ous acoustic signals e g beeps with modulating pitch relative to the signal strength Quieter Louder When the receiver is switched on the volume is set at a standard level The receiver will only start with the volume at a different level if the volume has been manually increased before switching off the receiver 3 Headphone jack To connect headphones with a 3 5 mm plug connector 4 Battery compartme...

Page 6: ... no functions are carried out within 7 minutes of being switched on 3 Display Provides a visual indication of reception strength line depth mode of operation battery status and menu items 4 Function key 1 Depending on the status of the system this button is used to Manually decrease reception sensitivity Start measuring depth 5 Function key 2 Depending on the status of the system this button is us...

Page 7: ...ries need to be replaced 2 On Off switch By quickly pressing this button the TX5000 can be switched on or off All appropriate LED s blink when the transmitter is on depending on operating function 3 Signal type function key This key is used to switch between continuous and pulsed signal output 4 Jacks for connecting accessories These jacks are used to create a direct galvanic connection with the t...

Page 8: ...ing signal Continuous signal This signal type has to be activated before a taking a depth measurement Symbol Signal strength Low output signal strength 0 1W Low signal strength conserves the batteries High output signal strength 0 5W Symbol Operation modes Inductive connection In this mode of operation the transmitter s signal is emitted through the integrated antenna and is thereby inductively co...

Page 9: ...ture of the lines e g insulation cable conduit accessibility of the cable ends Direct coupling presents a reliable option for selective cable location as the signal can be coupled onto a specific cable with virtually no loss The following illustration shows an example of direct coupling Fig 4 Direct coupling on cables and pipes CAUTION If the lines being located are energised the following five sa...

Page 10: ... cancel each other out Under certain circumstances this can prevent the cable from being detected Alternatively a connection without an earth connection can also be made Multiple wire cable internal conductor connected or disconnected with metallic screen and earthing insulation verso terra Same application as in example 1 Metallic conduit with or without insulation against earthing The earth spik...

Page 11: ...ed onto easily accessible cables with the aid of a 100mm transmitter clamp Cod 820005314 In doing so it is not necessary to disconnect the cables Fig 6 Coupling via transmitter clamp By ensuring that the transmitter clamp is completely closed around the cable only a small leakage field will be generated This can significantly reduce the unwanted coupling of the signal onto neighbouring lines Ideal...

Page 12: ...sing inductive signal coupling the following guidelines should be observed As the signal can be coupled onto other conductors when using inductive coupling direct coupling of the transmitter is always preferable when locating lines selectively Inductive signal coupling should only be opted for in cases where the line being located is not easily accessible see paragraph 4 2 1 and 4 2 2 While taking...

Page 13: ...raight above the located line ask a colleague to place the TX5000 on its back see Fig 8 nearby the line path at least 15m away from the receiver 3 Slide the TX5000 across the line until the signal strength bargraph is lowest indicating that the transmitter is directly above the line which thus is masked out Note that adjacent lines may not be parallel with the first cable route so sweep the receiv...

Page 14: ... probe i e the handle of the receiver has to be hold at right angle to the probe Practice locating the probe or FlexSonde head before pushing it into the drain or duct Strongest signal will be detected when the receiver is above and perpendicular to the probe as shown in Fig 9 The signal transmitted by the probe results in three signal maxima on the ground surface level Typically there is a smalle...

Page 15: ...he transmitter 3 Select the desired output signal using the and function keys see paragraph 4 1 3 A green LED indicates that the respective setting is active Select the desired mode of operation using the button see paragraph 4 1 3 4 Result In Direct mode an LED next to the symbol indicates how good the connection is to the connected line Green blinking good low resistance connection Alternating r...

Page 16: ...se of receiver RX5000 The two options explained above for passive location together with the options of active location with a transmitter or a probe transmitting a signal with an appropriate frequency result in the following modes of operation Symbol Mode of operation RADIO For locating cables which are carrying VLF reradiated radio signals POWER GRID For locating mains power supply cables throug...

Page 17: ...the level of sensitivity is set the more capable the receiver is of detecting weaker signals The numeric display above the bars shows the utilisation factor as a percent Should the scale for reception signal strength bargraph provide virtually no indication or the display is completely utilised either a manual or automatic adjustment of the sensitivity level has to be made To start an automatic se...

Page 18: ...y over a metallic conductor the maximum signal strength will be measured If the receiver is moved away from the conductor towards the side and is not rotated while doing so the signal will drop off proportionately Fig 11 Handling the receiver RX5000 The alignment of the receiver in relation to the orientation of the conductor the antenna being the starting point of alignment has the following effe...

Page 19: ...ed onto Now a unit of length used by the system may be selected by pressing the key Feet ft Metre m 3 Press the key to save the settings The changes will remain in effect even after the receiver is switched off and back on again Proceed as follows to change the receiving frequency of operation modes with more than one possible frequency Step Action 1 Briefly press the key while continuing to hold ...

Page 20: ...er the first sweep of the site and the site should be probed again in the same manner The minimum spacing of 15m between the transmitter and receiver must always be maintained Follow the steps below when probing a site for unknown metallic conductors Step Action 1 If the site will be searched with the aid of the TX5000 transmitter it needs to be configured as described in paragraph 4 2 3 before pr...

Page 21: ...its own axis over this location until the maximum signal strength is indicated see paragraph 4 3 1 2 5 Result The receiver is in line with the conductor when it is positioned where the signal is strongest which is prerequisite for determining the direction of the line 6 To determine the path over an extended distance proceed by moving forward while maintaining the maximum signal strength If the si...

Page 22: ... depth measurement mode is set Transmitter or Probe A symbol in the lower left of the display indicates which mode is currently accessible Symbol Description For determining the depth of a probe which has been pushed into a non metallic pipe For determining the depth of a line the signal of an active transmitter is coupled onto For determining the depth of a line which carries radio signals or gri...

Page 23: ...utomatic depth measure while working in TRANSMITTER or PROBE mode For making a rough estimate of the depth while working in RADIO or POWER GRID mode 6 the depth value is displayed The other steps can be skipped the herewith symbol is shown continue from step 7 7 Move slowly to one side until the following symbol appears in the display and an acoustic signal sounds 8 Mark this spot then move in the...

Page 24: ... was not positioned directly above the line at the beginning of the process The depth of the metallic conductor probe exceeds the measuring range 5m 7m Depth measurement cannot be performed The depth of the metallic conductor amounts to less than 30 cm 1 ft Such conductors must be specially marked in order to prevent damage during construction The receiver was moved too far to the left or right wh...

Page 25: ... the receiver RX5000 The test can be started by pressing and holding followed by for at least 3 seconds If the self test is successfully accessed the display should show the software and hardware versions of the receiver components 2 Press the function key to start the self test 3 If the test is successfully passed without any problems the display shows the following information If a fault is reco...

Page 26: ...e self test procedure In this case the self test should be repeated in an environment with less interferences 220 Fault internal module L1 Contact service dept of HT ITALIA 230 Fault internal module L2 Contact service dept of HT ITALIA 240 Fault internal modules L1 and L2 Contact service dept of HT ITALIA 250 Generic fault Contact service dept of HT ITALIA ...

Page 27: ...atus of the receiver s batteries is checked upon start up and indicated in the display The system regularly checks the battery strength as well If battery capacity falls below 10 of the threshold value an audible warning signal is given and the current status of the batteries is shown in the upper part of the display In order to replace the 10x1 5V batteries type AA the battery housing must be rem...

Page 28: ...batteries are weak In order to change the 6x1 5 V batteries type LR20 both screws on the back of the transmitter must be e g with the aid of a coin turned through turn 1 and the battery tray must be pulled 2 see Fig 16 Please note that all the batteries are fitted in the same direction Fig 16 Replacement batteries of TX5000 5 4 CLEANING To clean the instrument use a soft dry cloth Never use a wet ...

Page 29: ... 1 Radio Mode 2 Power network Mode 3 Transmitter 0 3m 5m 12in 16ft 0 1m 20 rdg 20 rdg 5 rdg up to 2m 20 rdg 2 5m 0 3m 7m 12in 23ft 0 1m 10 rdg up to 2m 20 rdg 2 7m Power supply 10x1 5V batteries type IEC AA LR06 Battery life 40 hours for intermittent use with alkaline batteries 20 C Working temperature Operation Storage according to IEC EN60068 1 20 55 C 4 131 F 30 70 C 22 158 F Size LxWxH 660 x 2...

Page 30: ...eter Value Sinusoidal vibrations Peak acceleration Frequency According to IEC EN 60068 2 6 20m s2 10Hz 150Hz Free fall Max height packaged According to IEC EN60068 2 32 80cm weight up to10kg Safety IEC EN61010 1 Protection class III according to IEC EN61140 Insulation Double insulation Relative humidity max 93 at 30 C 6 4 ACCESSORIES 6 4 1 Standard accessories Transmitter TX5000 6x1 5V batteries I...

Page 31: ...ade necessary by previous attempts for repair carried out by non skilled or unauthorized personnel Instruments for whatever reason modified by the customer himself without explicit authorization of our Technical Dept Use not provided by the instrument s specifications or in the instruction manual The contents of this manual may not be reproduced in any form whatsoever without the manufacturer s au...

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