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(b) Tracing an underground circuit:

The circuit to be measured must not be live.

Connect the MW9520-E as show in the figure.

The MW9520-E must be correctly earthed.

Select the automatic mode of MW9520-R to find 

and trace the circuit.

The distance between the earth wire and 

the circuit to be located must be as long as 

possible, otherwise the circuit cannot be located 

precisely. 

(c

) Detection of faults in an in floor heating system:

The circuit measured must not be live, then 

the right end of circuit is connected to the 

transmitter that is sending "F" code signal, and 

the left end of circuit is connected to the other 

transmitter that is sending "C" code signal, and 

the both transmitters must be earthed. When 

the line is traced, the place at which the signal 

received by the receiver falls off suddenly is the 

location of the break.

Summary of Contents for MW9520

Page 1: ...MW9520 CABLE LOCATOR INSTRUCTION MANUAL...

Page 2: ...Index 1 Introduction 2 Safety notes 3 Features 4 Specifications 5 Instrument layout 6 Operation 7 Maintenance Page 1 2 3 4 5 6 7 11 12 20 21 22...

Page 3: ...designed and tested according to CE Safety Requirements for Electronic Measuring Apparatus EN 61010 1 EN 61326 1 and other safety standards Follow all warnings to ensure safe operation Warning Read Sa...

Page 4: ...tor may be impaired Rated environmental conditions 1 Indoor use 2 Installation Category III 300V 3 Pollution Degree 2 4 Altitude up to 2000 Meter 5 Relative Humidity 80 Max 6 Ambient Temperature 0 40...

Page 5: ...r cables ACV 12V 300V DCV 12V 300V Signal Transmission Transmission Power Level Selection includes 1 2 3 Transmission Signal Code Selection includes F E H d L C O A Flashlight Back Light function The...

Page 6: ...ncludes Level Code Value Automatic Mode Manual Mode There are 9 levels to select UAC Mode AC Power Line Detection Flashlight Back Light function The Silent Mode Disable Button Beep Frequency Tone The...

Page 7: ...g temperature humidity 0 C 40 C 80 R H Max Storage temperature humidity 10 C 50 C 80 R H Max Dimensions 247 L 78 W 45 D mm Weight battery included Approx 389g Receiver Detection depth 50cm Display LCD...

Page 8: ...6 Safety Standard EN 61010 1 CAT III 300V EN 61326 1 Low battery indication symbol appears and flashes on the LCD Accessories Instruction manual Test leads Alligator clip Spike Batteries Carry case...

Page 9: ...7 5 Instrument layout Transmitter Terminal Flashlight Button COM Terminal TEST STOP Button Flashlight LEVEL Button LCD CODE Button ON OFF Button Button Backlight and Mute Button Button...

Page 10: ...or more than 1 second to switch on or switch off the mute function 7 Flashlight Button Press it to turn on or turn off the LED lights 8 TEST STOP Button Press it to send a transmission signal or stop...

Page 11: ...lection mode Press it to select the code upwards when the transmitter is in the code selection mode 12 Button Press it to select the level downwards when the transmitter is in the level selection mode...

Page 12: ...10 Receiver Sensor of the Receiver Backlight and Mute Button Flashlight UAC Button LCD Flashlight Button ON OFF Button Button MANU Button Button...

Page 13: ...te Button Press it to turn on or turn off the LCD Backlight Press and hold it for more than 1 second to switch on or switch off the mute function 7 UAC Button Press it to switch to the non contact vol...

Page 14: ...L button to enter into the level selection mode of the transmitter the LEVEL symbol will be flashing User can press or button to select the level of the transmission signal level 1 3 The transmitter w...

Page 15: ...indicates the signal strength Manual detection mode Press the MANU button to enter into the manual detection mode On the manual detection mode user can select the signal sensitivity level 8 steps by p...

Page 16: ...n a Connect the red terminal to a single conductor and connect the COM black terminal to earth If there are other conductors in the same piping then they have to be earthed at the same time In this ca...

Page 17: ...om the transmitter is near other conductors that are parallel to it example cable tray channel etc or is interlaced with or crosses them the signal may then propagate in these cables and create spurio...

Page 18: ...16 measure the voltage of mains line and transmit the signal through the mains line then the MW9520 R can trace the mains line and detect the power socket is locating on the same mains line or not...

Page 19: ...e two ends of wires in the line and connect the wires together on the other end of line In another method connect the both terminals of MW9520 E to the two ends of a single line In this case the MW952...

Page 20: ...conductive and so metallic for example galvanized steel The pipe must not be earthed and there is a relatively high resistance between itself and ground otherwise the detection distance is very short...

Page 21: ...g as possible otherwise the circuit cannot be located precisely c Detection of faults in an in floor heating system The circuit measured must not be live then the right end of circuit is connected to...

Page 22: ...ls detected by the receiver in the UAC mode indicated only whether the circuit is live or not During the search for the ends of several supply lines the lines must be connected separately one by one T...

Page 23: ...the test leads from the transmitter and turn off the power of the transmitter Unscrew the battery cover and replace with new batteries 1 5V AAA 6 Turn off the power of the receiver Unscrew the battery...

Page 24: ...hock or damage to the instrument do not get water inside the case Periodically wipe the case with a damp cloth and detergent Do not use abrasives or solvents If the instrument is not to be used for mo...

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Page 26: ...SEFRAM 32 rue Edouard MARTEL BP 55 42009 SAINT ETIENNE Cedex 2 France Tel 33 0 4 77 59 01 01 Fax 33 0 4 77 57 23 23 Web www sefram fr Mail sales sefram fr...

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