Amprobe AT-7000 User Manual download pdf (Page 16)

3.1 Tracing Energized Wires

SMART SENSOR

The SMART SENSOR enables easier wire tracing by

showing the direction and position of the wire and

is the recommended method for tracing energized

wires (does not work on de-energized circuits, use

de-energized

TIP SENSOR for that application).

Connecting transmitter test leads

1. Connect green and red test leads to the

transmitter (polarity does not matter)

2. . Connect red lead to energized hot wire (on

the load side of the system). The signal will

ONLY be transmitted between the outlet to

which the transmitter is connected and the

source of power

(see Figure 3a).

3. Connect green wire to a separate ground

(metal building structure, metal water pipe,

or ground wire on a separate circuit).

*Note: Please note that if working with GFCI protected circuits, this method will trip the

GFCI protection. Refer to Special Applications, section 4.1 “GFCI-Protected Circuit Wire

Tracing” for alternative tracing methods.

Set up the AT-7000-T Transmitter:

1. Press ON/OFF key to turn on the

transmitter.

2. Verify that the test leads are properly

connected - the red LED voltage status

should indicator should be on, indicating

that the circuit is energized. If not, make

sure that

• the circuit is energized

• the separate ground green wire is

properly grounded. If the ground wire is

not properly grounded the red LED will

not light, even when connected to an

energized circuit.

3. Select HIGH signal mode for most

applications. Screen will appear as shown

in Figure 3.1b.

Note: The LOW signal precision mode can be used to limit the signal level generated by the

transmitter in order to more precisely pinpoint wire location. A lower signal level reduces

coupling to neighboring wires and metal objects and helps to avoid misreading due to

ghost signals. A lower signal also helps to prevent oversaturating the receiver with a

strong signal that covers a large area. The LOW mode function is rarely used, only for most

demanding precise wire tracing applications.

3. MAIN APPLICATIONS - SMART SENSOR (Energized)

Figure 3.1b

Transmitter screen showing signal in

HIGH mode with 6kHz frequency for

energized circuit

SMART SENSOR

Figure 3.1a

Proper connection with separate ground

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Amprobe AT-7000 User Manual Page 16

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