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A workhorse of the locating industry, the 8831 is accurate, rugged,
portable and dependable. It is designed to last through years of tough
field use.
The 8831 transmits at a powerful 3 watts by using the low frequency of
815 Hz. The high output signal at a low frequency maximizes tracing
distance and minimizes signal radiation and coupling in crowed areas.
RYCOM has long believed that the most accurate combination for locating
is a low-frequency signal and direct hook-up of the transmitter to the
metallic conductor. Because the low frequency electromagnetic field is
virtually confined to the conductor, the risk of interference is
greatly reduced.
Under ideal conditions, the 8831 is capable of tracing up to 25
miles. With a larger tracing distance, you save time and costs
associated with locating due to a reduction of transmitter maneuvering.
In one quick step, the transmitter power is matched to the resistance
of the cable or pipe being traced. The easy-to-read meter displays a
correct signal match.
RYCOM's 8831 also comes with a 12-volt, 6.5-amp hour lead acid
rechargeable battery, enabling more than 11 continuous hours of
locating on a single charge. It is available with choice of either
a Rechargeable Battery Pack or a Lantern Battery Pack. Both battery
packs can be used interchangeably.
The 37" Full Snooper Probe (Receiver Probe) looks like a walking
stick and is just as comfortable. No squatting or "duck walking"
is required to heighten sensitivity and accuracy. The highly
sensitive receiver probe converts the electromagnetic signal
into audio and visual outputs on the receiver. Fast and precise
depth measurements are achieved by using the triangulation method
with the receiver probe.
By combining the powerful 3-watt transmitter with the 8831's highly
sensitive receiver, the maximum signal distance can be achieved. By
passing the Receiver Probe over the underground conductor, the Probe
translates the electromagnetic currents in two ways, clearly audible
peak and null tones, and easy-to-read meter indications. Close-up
meter readings and fingertip signal gain adjustments are made easy
by a comfortable nylon neck strap on the receiver.
The AM/FM/OFF switch determines how the audio will be heard. The
AM loud-to-soft or FM rise-and-fall changes in pitch through the
speaker, or the OFF setting eliminates sound entirely. When the
8831 is used with the headset, the surrounding traffic and noise
interfence is blocked out.
The Selectable Signal Tone switch locates an energized power cable
by flipping the switch to the 50-60Hz position. When using the
50-60Hz position, no transmitter hook-up is required.
When using the Receiver Probe to locate the path, irregular signal
level areas will be revealed. On an undamaged sheath, signal levels
become weaker as the user moves farther from the transmitter. On a
damaged sheath, however, soil currents are concentrated and will
fan out in all directions.
When attaching the optional Ground Return Probe accessory to the
receiver, the 8831 is converted into a fault locator. For convenient
storage, a compartment within the transmitter case carries your
receiver, headset, cords, ground rod and optional Flexicoupler. A
carrying case is available for both the folding Ground Return Probe
and 37" Receiver Probe.
- Ideal for long-range locates of cathodic protection, telephone, and fiber-optic lines
- Single frequency of 815 Hz
- Nulling receiver wand
- Highly sensitive filtering
- Fault locating capability
- 3-watt transmitter output
- Low-frequency inductive coupling capabilities
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