Amprobe AT-7000 Instrukcja Użytkownika Strona 15
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• �IMPORTANT NOTICE, PLEASE READ BEFORE YOU START TRACING
Avoiding signal cancellation problems with a separate ground connection
The signal generated by the transmitter creates an electromagnetic field around the wire.
This field is what is detectable by the receiver. The clearer this signal, the easier it is to trace
the wire.
If transmitter is connected to two adjacent wires on the same circuit (for example, hot and
neutral wires on a Romax cable), the signal travels in one directions through the first wire and
then returns (with opposite direction) through the second one. This causes creation of two
electromagnetic fields around each wire with opposite direction. These opposing fields will
partially or completely cancel each other out, making wire tracing difficult if not impossible.
Not recommended. This
wire connection causes
signal cancellation
AT-7000-R
AT-7000-TFigure 3a
To avoid the cancellation effect, a separate ground connection method should be used.
The red test lead of the transmitter should be connected to the hot wire of the circuit
you wish to trace, and the green lead to a separate ground, such as water pipe, ground
stake, metal grounded structure of the building, or outlet ground connection of an outlet
on a different circuit. It is important to understand that an acceptable separate ground
is NOT the grounding terminal of any receptacle on the same circuit as the wire you wish
to trace. If hot wire is energized and the transmitter is properly connected to a separate
ground, the red LED on a transmitter will light up. The separate ground connection create
the maximum signal strength, because the electromagnetic field created around the hot
wire is not being cancelled by a signal on the return path flowing along an adjacent wire
(hot or neutral) in the opposite direction, but rather through the separate ground circuit.
Avoiding signal
cancellation effect
AT-7000-R
AT-7000-T
Figure 3b
To Transformer
3. MAIN APPLICATIONS
- Advanced Wire Tracers 1
- Advanced Wire Tracer 3
- AT-7000 Series 5
- CONTENTS 5
- Safety precautions 6
- Safety information 6
- �Warnings: Read Before Using 7
- 2. KIT COMPONENTS 10
- To Transformer 15
- SMART SENSOR 16
- TIP SENSOR 18
- 0-30V AC/DC 21
- TIP SENSOR DE-ENERGIZED 21
- BREAKERS 22
- NCV MODE 25
- 4. SPECIAL APPLICATIONS 26
- 5. MAINTENANCE 32
- 6. SPECIFICATIONS 35
- Traceur de câble avancé 39
- Réparation 40
- Série AT-7000 41
- TABLE DES MATIÈRES 41
- Généralités 42
- Précautions de sécurité 42
- Informations de sécurité 42
- MAN/AUTO 44
- 2. COMPOSANTS DU KIT 45
- Vers le 51
- CAPTEUR 52
- INTELLIGENT 52
- DE POINTE 54
- DISJONCTEURS 58
- BALAYAGE : 59
- LOCALISATION : 59
- MODE NCV 61
- 4. APPLICATIONS SPÉCIALES 62
- 6. SPÉCIFICATIONS 71
- Rastreador de cable avanzado 75
- Reparaciones 76
- Serie AT-7000 77
- CONTENIDO 77
- Precauciones de seguridad 78
- Información de seguridad 78
- 2. COMPONENTES DEL KIT 81
- 3. APLICACIONES PRINCIPALES 87
- INTELIGENTE 88
- SENSOR DE 90
- INTERRUPTORES 94
- LECTURA: 95
- UBICACIÓN: 95
- 3.4 Modo NCV 97
- 4. APLICACIONES ESPECIALES 100
- 5. MANTENIMIENTO 104
- 6. ESPECIFICACIONES 107
- Visit www.Amprobe.com for 110
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