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Schonstedt MAC-51Bx

Western Technical | Survey & Forestry Equipment | Magnetic Locators |  Schonstedt MAC-51Bx

Schonstedt Model #MAC - 51BxSchonstedt Model #MAC - 51Bx
The MAC-51Bx consists of a receiver and a transmitter that simultaneously transmits on two frequencies 571 Hz (LF) and 82.5 KHz (HF).

The receiver has a three position switch that lets you change modes, on-the-fly, between LO, HI, and MAG, for cable and line tracing with break locating, pinpointing a ferrous metal target, or identifying and pinpointing an energized 50/60 Hz power line.

In the LO and HI modes, the receiver’s audio signal provides a sharp null when its tip is directly over the target. In the MAG mode (no transmitter required) the audio signal peaks when the receiver’s tip is over the target. You can trace the 571 Hz LF signal conductively applied to any continuous metal conductor up to 4000 feet.

The receiver’s on-the-fly mode-changing feature lets you locate a complete break using the LO mode, and then continue on to trace beyond the break in the HI mode, or trace a metal pipe joined with non-conductive gaskets.

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Optional Equipment
MT-2 Mini-Transmitter (Mole) is used to trace non-metallic pipes, pinpoint obstructions and locate concrete septic tanks. When attached to a plumber’s snake, the Mole emits a signal detectable at depths of 18 feet using the MAC-51Bx Receiver.
Optional Equipment
Inductive Signal Clamp
Increases the versatility of the MAC-51Bx by providing a convenient method of selectively applying the trace signal to conductors covered with non-metallic insulation.
Inductive Signal Clamp
Magnetic Locating Mode
Only the MAC-51Bx receiver is required when operating in the magnetic mode. Just set the Mode switch to MAG, the Gain control to mid-range, and you’re ready to locate underground ferrous pipes, water meters, water valves, and property markers or anything that has a magnetic field including the 50/60Hz electro-magnetic field generated by energized power lines.
Magnetic Locating Mode
Transmitter Inductive Mode
Transmitter Inductive Mode (HF only) Induction is achieved by placing the transmitter over the target cable/pipe or by using the optional Inductive Signal Clamp. It’s the easiest and quickest way to applying a trace signal that is strong enough for tracing most lines. The trace signal generates an alternating magnetic field around the cable which induces a signal into the receiver’s cable sensor. A sharp null in the audio signal between the two peaks occurs when the receiver’s tip is directly over the cable.
Transmitter Inductive Mode
Transmitter Conductive Mode
If an exposed section of a target gas or water pipe is accessible, conductive coupling is the most reliable method for applying the trace signal. This mode has to be used to apply both HF and LF frequencies so that you can use all three features on-the-fly. Providing a good electrical contact between the clip and the conductive portion of the target line by removing rust or paint before attaching the clip is very important.
Transmitter Conductive Mode

Western Technical | Survey & Forestry Equipment | Magnetic Locators |  Schonstedt MAC-51Bx

This catalog is reserved for registered customers only. Please contact us to register.