Amprobe CT-326-C Bedienungsanleitung

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CT-326-C Current Tracer
Probe Range Switch
1. Range switch determines the probe’s gain.
2. If the probe displays 10 LEDs, gain is too sensitive. Turn switch to lower setting.
Identify Circuit Breaker (Fig. 2)
1. Connect the transmitter to a source of power.
2. Set the probe’s range switch to BREAKERS-3.
3. Push ON and wait for it to calibrate.
4. Hold the probe’s tip to each circuit breaker as shown. The correct breaker
produces the strongest signal. Adjust gain as necessary.
5. In critical areas, remove panel trim and turn the probe’s range switch to
WIRES-1. Hold the tip to each wire. The wire with the strongest signal may
be visually traced to the breaker.
Locating Wires In Walls (Fig. 3)
1. Attach pigtail connector to transmitter.
2. Clip one lead to a seperate earth ground such as a water pipe.
3. Clip the other lead to the hot conductor.
4. Set the probe’s range switch to SCAN position.
5. Push ON and wait for it to calibrate.
6. Hold the probe’s tip close to the wall or floor where you suspect the
conductor is located.
7. Sweep the probe across large areas until the probe’s signal locates the
conductor. Adjust range switch as necessary.
NOTE: The same procedure may be used for tracing individual wires in
bundles.
Following Conduit (Fig. 4)
1. Attach transmitter and follow signal as explained in
“Locating Wires in Walls”.
2. Adjust the probe’s range switch as necessary.
HINT: Since the feeder panel may radiate a magnetic signal to
nearby conduit, make sure the probe is always more than 5’
(1.5 m) away from the circuit breaker box.
Fig. 4
Fig. 3
Fig. 1
Fig. 2
Test Position (Fig. 1)
1. Connect the transmitter to source of power.
2. Set the probe’s range switch to BREAKERS-5.
3. Push ON and wait for it to calibrate.
4. Hold the probe next to the transmitter, observe blinking LEDs and
“chirping” sound.
Probe Battery Test
1. Push the probe’s BATTERY TEST and ON buttons at the same time.
2. If the probe’s LEDs do not light in BATTERY OK range, change the battery.
Short To Ground (Fig. 5)
1. Find affected breaker panel and make sure circuit breaker is in
OFF position.
2. Attach pigtail connector to transmitter.
3. Clip one lead to shorted power line.
4. Clip the other lead to hot conductor of adjacent breaker as
shown.
5. Adjust the probe’s range switch as necessary.
6. Push ON and wait for it to calibrate.
7. Hold the tip close to the shorted wire.
8. Trace the wire until the signal suddenly stops. This is the
location of the short. Fig. 5
Fig. 7
Tracing Coax Cable (Fig. 6)
1. Attach pigtail connector to transmitter.
2. Clip one lead to the shield of the coax cable.
3. Clip other lead to grounded power source.
4. Follow the transmitter’s signal as explained in
“Locating Wires in Walls”.
NOTE: Make sure the coax shield is grounded.
Locating Ground Faults (Fig. 7)
1. Identify ground fault with voltmeter. Grounded
phase will have reduced voltage compared to the
other phases.
2. Attach pigtail connector to transmitter.
3. Clip one lead to system ground.
4. Connect the other lead to one of the two
phases that doesn’t have the ground fault. The
transmitter’s LED will blink if the ground fault
impedance is low enough to allow the transmitter to operate.
5. Adjust the probe’s range switch as necessary.
6. Push ON and wait for the probe to calibrate.
7. Hold the probe’s tip close to a faulty phase and watch for a dramatic change in LED readout.
Fig. 6
Amprobe®
www.Amprobe.com
info@amprobe.com
Everett, WA 98203
Tel: 877-AMPROBE (267-7623)
Amprobe® Europe
Beha-Amprobe
In den Engematten 14,
79286 Glottertal, Germany
Tel.: +49 (0) 7684 8009 - 0
P/N 3356291 Rev 002
10/2013 6001650 A
©2013 Amprobe® Test Tools. All rights reserved.

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Modell: CT-326-C

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