Section I
OPERATION
SECTION I
1-1. INTRODUCTION
The Dynatel 500 is aportable, battery-operated
tone set that locates the path of buried or
underground (UG) cables. Applications include
locating butt splices, slack loops, unknown
laterals, service drops, and encapsulated closures.
The cable locator can also be used for positive
cable or conductor identification, for finding the
depth of buried or UG cables accurately, and for
finding clear or severed cable ends.
The 500 locates cables without taking them out
of service. The transmitter generates ahigh-
frequency tone that can be put on acable or pair
without opening it or noising it up. The tone does
not interfere with signals or conversations already
on the cable, and it is not sensitive to a-c
power-induced noise. The transmitter has two
power ranges: normal (for most applications), and
high. Power level can be selected for soil condi-
tions or cable length. Ground connections are
generally unnecessary for the transmitter setup,
and no connections are required for the receiver,
which can be operated with one hand at normal
walking speeds.
ERATION
The tone receiver is avery sensitive, tuned unit
that receives only the signal from the transmitter.
The receiver output can be heard either through
the built-in loudspeaker, or through headphones.
In addition, the receiver meter indicates the
strength of the tone. The volume knob controls
the speaker output level, the headphone output
level, and the meter sensitivity. Headphones are
optional with the Dynatel 500.
The Cable Locator consists of atransmitter,
receiver, and accessory units. The transmitter and
receiver are made of durable yellow fiberglass for
light weight and high visibility, and water-
resistance in wet-weather operation. For compact
storage and carrying, the receiver and accessory
units fit into the transmitter case when not in use.
1-2. TRANSMITTER CONTROLS
The Transmitter has asingle switch located on the
panel next to the accessory storage well, as shown
in Fig. 2and described below:
(a) The TRANSMITTER output selector is a
4-position switch for testing batteries and
setting the transmitter output power level.
DYNATEL@(f](f] 1
