Description, Specifications And Standard Equipment; Components - RIDGID SeekTech ST-305 Operator's Manual

Description, Specifications and
Standard Equipment
The SeekTech ST-305 line transmitter is part of Ridgid's
SeekTech cable and pipe locating system� The ST-305 is
used to energize a pipe or line with an "active" electrical
signal, so that the underground line may be traced with a
compatible receiver (such as the SeekTech SR-20)� This
allows the line's location to be correctly marked so it can be
exposed for repair or avoided during excavation�
The ST-305 line transmitter can apply an active tracing
signal to a target conductor in three ways:
•
Direct Connect� The transmitter's leads are connected di-
rectly to the target conductor and a suitable ground� The
ST-305 line transmitter is capable of dual-frequency trans-
mission (sending two frequencies onto a line simultaneous-
ly) in direct-connect mode�
•
Inductive Clamp (optional accessory)� The jaws of the
inductive clamp encircle the target conductor; there is no
metal-to-metal contact�
•
Inductive Mode (internal coils)� The transmitter is placed
over, and in-line with, a conductor� Its internal antenna gen-
erates a dipole field which energizes the target conductor
below ground, inducing a current into the target conductor�
FCC Limits
47 CFR 15�213 requires that from 9 kHz up to (but not includ-
ing) 45 kHz, peak output power shall not exceed 10 W� From 45
kHz to 490 kHz, it must not exceed 1 W� When the ST-305 is
set to 262 kHz (European version: 93 kHz), the power output
levels are limited:
Low: 0�3 watt
Medium: 0�6 watt
High: 1�0 watt
These values assume a nominal load of 320 ohms�
In compliance with Federal Standard EN-50249, the ST-305
line transmitter is designed to withstand up to 250 VAC 50/60
Hz excitation between the two leads�
ST-305 Specifications
Weight:
without batteries
with batteries
Dimensions:
Depth
Width
Height
Power Source
Power Settings
Output Power
Default Settings
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Table 1
1�6 lb [0�772 kg]
2�5 lb [1�1 kg]
4�7 in [11�9 cm]
7�75 in [19�6 cm]
3 in [7�6 cm]
6 C-Cell Batteries
Alkaline or rechargeable
25 mA to 5 W
Nominal 5 watts
62 V Maximum (RMS)� 1 kHz, 8 kHz,
33 kHz, 262 kHz selectable frequen-
cies (93 kHz maximum in Europe)�
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SeekTech ST-305
Standard Equipment
• ST-305
• Direct connect leads and clips
• Operator's Manual
• 6 C-cell batteries (Alkaline)

Components

Keypad and
LED Indicators
Connection Leads
and Clips
Figure 1 – ST-305 Components
Inductive
Clamp Jack
Grounding Stake Storage
Figure 2 – ST-305 Components
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Battery
Case
Carry strap
English – 5