19
ENGLISH
8 PASSIVE LOCATING - POWER & RADIO
8.1 What is passive locating?
Passive locating refers to the process of detecting signals that „naturally“ occur on pipes and cables. These tend
to fall into two categories, radio signals, and power signals.
Sources of passive locate signals:
Power signals
These signals are 50/60Hz signals created by power transmission cables. When electrical power is distributed
throughout the network, some of the power
fi
nds 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
fl
owing to create a detectable signal. For instance, a live cable that is not in use may not radiate a
detectable signal. Also, a very well balanced cable, i.e., the same amount of current
fl
owing in live and neutral,
will cancel out and may not create a signal. In practice, this is unusual as there are usually enough imbalances in
the cable to create a good detectable signal.
Radio signals
These signals created by low-frequency radio transmitters that are used for broadcasting and communications.
When the signals cross a long conductor such as a pipe or cable, the signals are re-radiated. It is these
re-radiated signals that can be detected by the RF mode.
8.2 Locating power or radio signals
1. Switch on the PIPELINE LOCATOR and use the
button to enter the
PASSIVE OR RF
mode.
2. Hold
the
PIPELINE LOCATOR vertically and away from likely positions of cables or pipes.
3. Adjust the sensitivity using the
buttons so that the bar graph reading is just starting to show some
movement. Note that the line direction indicator feature is not available for the Power or Radio modes.
NOTE
Note that there will be no sound from the speaker until the meter reading is above approximately 10% of full
scale.
PASSIVE
Summary of Contents for HEAVY DUTY M12 PL
Page 7: ...6 ENGLISH 3 INSTALLING AND REMOVING BATTERY 1 2 click 1 2 ...
Page 8: ...7 ENGLISH 4 CHANGE ONEKEY BATTERY 1 2 3 ...
Page 28: ...6 DEUTSCH 3 AKKU EINSETZEN UND ENTNEHMEN 1 2 click 1 2 ...
Page 29: ...7 DEUTSCH 4 ONE KEY AKKU WECHSELN 1 2 3 ...
Page 49: ...6 FRANÇAIS 3 INSERTION ET RETRAIT DE LA BATTERIE 1 2 click 1 2 ...
Page 50: ...7 FRANÇAIS 4 REMPLACER LA BATTERIE ONE KEY 1 2 3 ...
Page 70: ...6 ITALIANO 3 INSERIMENTO E RIMOZIONE DELLA BATTERIA 1 2 click 1 2 ...
Page 71: ...7 ITALIANO 4 SOSTITUZIONE DELLA BATTERIA ONE KEY 1 2 3 ...
Page 91: ...6 ESPAÑOL 3 INSERTAR Y EXTRAER LA BATERÍA 1 2 click 1 2 ...
Page 92: ...7 ESPAÑOL 4 CAMBIAR LA BATERÍA ONE KEY 1 2 3 ...
Page 112: ...6 PORTUGUÊS 3 INSERIR E RETIRAR A BATERIA 1 2 click 1 2 ...
Page 113: ...7 PORTUGUÊS 4 TROCAR A BATERIA ONE KEY 1 2 3 ...
Page 133: ...6 NEDERLANDS 3 ACCU PLAATSEN EN VERWIJDEREN 1 2 click 1 2 ...
Page 134: ...7 NEDERLANDS 4 ONE KEY ACCU VERVANGEN 1 2 3 ...
Page 154: ...6 DANSK 3 ISÆTNING OG UDTAGNING AF BATTERI 1 2 click 1 2 ...
Page 155: ...7 DANSK 4 UDSKIFTNING AF ONE KEY BATTERI 1 2 3 ...
Page 175: ...6 NORSK 3 INNSETTING OG UTTAK AV BATTERIPAKKEN 1 2 click 1 2 ...
Page 176: ...7 NORSK 4 SKIFTE ONE KEY BATTERIPAKKE 1 2 3 ...
Page 196: ...6 SVENSKA 3 SÄTTA I OCH TA UR DET UPPLADDNINGSBARA BATTERIET 1 2 click 1 2 ...
Page 197: ...7 SVENSKA 4 BYTA ONE KEY UPPLADDNINGSBART BATTERI 1 2 3 ...
Page 217: ...6 SUOMI 3 AKUN PAIKOILLEEN ASETTAMINEN JA POISTAMINEN 1 2 click 1 2 ...
Page 218: ...7 SUOMI 4 ONE KEY AKUN VAIHTAMINEN 1 2 3 ...
Page 238: ...6 ΕΛΛΗΝΙΚΑ 3 ΤΟΠΟΘΕΤΗΣΗ ΚΑΙ ΑΦΑΙΡΕΣΗ ΜΠΑΤΑΡΙΑΣ 1 2 click 1 2 ...
Page 239: ...7 ΕΛΛΗΝΙΚΑ 4 ΑΝΤΙΚΑΤΑΣΤΑΣΗ ΜΠΑΤΑΡΙΑΣ ΕΝΟΣ ΠΛΗΚΤΡΟΥ 1 2 3 ...
Page 259: ...6 TÜRKÇE 3 BATARYANIN TAKILMASI VE ÇIKARTILMASI 1 2 click 1 2 ...
Page 260: ...7 TÜRKÇE 4 ONE KEY BATARYANIN DEĞIŞTIRILMESI 1 2 3 ...
Page 280: ...6 CESKY 3 VLOŽENÍ A VYJMUTÍ AKUMULÁTORU 1 2 click 1 2 ...
Page 281: ...7 CESKY 4 VÝMĚNA AKUMULÁTORU ONE KEY 1 2 3 ...
Page 301: ...6 SLOVENSKY 3 VLOŽENIE A VYBRATIE AKUMULÁTORA 1 2 click 1 2 ...
Page 302: ...7 SLOVENSKY 4 VÝMENA AKUMULÁTORA ONE KEY 1 2 3 ...
Page 322: ...6 POLSKI 3 WKŁADANIE I WYJMOWANIE BATERII 1 2 click 1 2 ...
Page 323: ...7 POLSKI 4 WYMIANA BATERII W ONE KEY 1 2 3 ...
Page 343: ...6 MAGYAR 3 AZ AKKU BEHELYEZÉSE ÉS ELTÁVOLÍTÁSA 1 2 click 1 2 ...
Page 344: ...7 MAGYAR 4 ONE KEY AKKU CSERÉJE 1 2 3 ...
Page 364: ...6 SLOVENSKO 3 VSTAVLJANJE IN ODSTRANJEVANJE AKUMULATORSKE BATERIJE 1 2 click 1 2 ...
Page 365: ...7 SLOVENSKO 4 ZAMENJAVA AKUMULATORSKE BATERIJE ONE KEY 1 2 3 ...
Page 385: ...6 HRVATSKI 3 UMETANJE I UKLANJANJE BATERIJE 1 2 click 1 2 ...
Page 386: ...7 HRVATSKI 4 ZAMJENA ONE KEY BATERIJE 1 2 3 ...
Page 406: ...6 LATVISKI 3 IEVIETOJIET UN IZŅEMIET AKUMULATORU 1 2 click 1 2 ...
Page 407: ...7 LATVISKI 4 ONE KEY AKUMULATORA NOMAIŅA 1 2 3 ...
Page 427: ...6 LIETUVIŠKAI 3 AKUMULIATORIAUS ĮSTATYMAS IR IŠĖMIMAS 1 2 click 1 2 ...
Page 428: ...7 LIETUVIŠKAI 4 ONE KEY AKUMULIATORIAUS KEITIMAS 1 2 3 ...
Page 448: ...6 EESTI 3 AKU SISSEPANEK JA VÄLJAVÕTMINE 1 2 click 1 2 ...
Page 449: ...7 EESTI 4 ONE KEY AKU VAHETAMINE 1 2 3 ...
Page 469: ...6 РУССКИЙ 3 УСТАНОВКА И ИЗВЛЕЧЕНИЕ АККУМУЛЯТОРА 1 2 click 1 2 ...
Page 470: ...7 РУССКИЙ 4 ЗАМЕНИТЬ АККУМУЛЯТОР ONE KEY 1 2 3 ...
Page 490: ...6 БЪЛГАРСКИ 3 ПОСТАВЯНЕ И ИЗВАЖДАНЕ НА АКУМУЛАТОРНАТА БАТЕРИЯ 1 2 click 1 2 ...
Page 491: ...7 БЪЛГАРСКИ 4 СМЯНА НА АКУМУЛАТОРНАТА БАТЕРИЯ ONE KEY 1 2 3 ...
Page 511: ...6 ROMÂNĂ 3 MONTARE ȘI ÎNDEPĂRTARE ACUMULATOR 1 2 click 1 2 ...
Page 512: ...7 ROMÂNĂ 4 ÎNLOCUIRE ACUMULATOR ONE KEY 1 2 3 ...
Page 532: ...6 МАКЕДОНСКИ 3 ВМЕТНУВАЊЕ И ОТСТРАНУВАЊЕ НА БАТЕРИЈАТА 1 2 click 1 2 ...
Page 533: ...7 МАКЕДОНСКИ 4 МЕНУВАЊЕ НА ONE KEY БАТЕРИЈА 1 2 3 ...
Page 553: ...6 УКРАЇНСЬКА 3 ВСТАНОВЛЕННЯ ТА ЗНІМАННЯ АКУМУЛЯТОРНОЇ БАТАРЕЇ 1 2 click 1 2 ...
Page 554: ...7 УКРАЇНСЬКА 4 ЗАМІНА АКУМУЛЯТОРНОЇ БАТАРЕЇ ONE KEY 1 2 3 ...
Page 583: ...15 7 ﻋرﺑﻲ 4 ONE KEY ﺑطﺎرﯾﺔ اﺳﺗﺑدل 1 2 3 ...
Page 584: ...16 6 ﻋرﺑﻲ 3 اﻟﺑطﺎرﯾﺔ وﻧزع ﺗرﻛﯾب 1 2 click 1 2 ...
