SeekTech ST-305 ® 5 Watt Pipe and Cable Line Transmitter U.S. Patent Pending Operator’s Manual WARNING! Read this operator’s manual carefully before using this tool. Failure to understand and follow the contents of this manual may result in electrical shock, fire, and/or serious personal injury.
SeekTech ST-305 Line Transmitter ® SeekTech ST-305 Line Transmitter SeekTech Line Transmitter ® Record the Serial Number of your unit below and retain for your records. Serial Number Ridge Tool Company ● Elyria, Ohio ● U.S.A www.seektech.com...
SeekTech ST-305 Line Transmitter • Properly dispose of the batteries. Exposure General Safety Information to high temperatures can cause the battery to explode, so do not dispose of in a fire. Some countries have regulations concerning battery WARNING disposal. Please...
• When servicing a tool, use only identical Important Notice replacement parts. Follow instructions in the Maintenance Section of this manual. Use of The SeekTech ST-305 is intended for use with a unauthorized parts failure follow SeekTech locator/reciever.
SeekTech ST-305 Line Transmitter DANGER ALWAYS HOOK UP LEADS FIRST BEFORE POWERING THE UNIT ON TO AVOID SHOCK. ALWAYS TURN UNIT BEFORE DISCONNECTING LEADS. ELECTRIC SHOCK MAY RESULT FROM FAILURE TO CONNECT LEADS BEFORE POWERING THE UNIT ON. Do not handle the transmitter while you are connected directly to ground yourself.
SeekTech ST-305 Line Transmitter Keypad High Voltage Warning Frequency Indicator Power Indicator Induction Mode Indicator Frequency and Power On/Off/Select Mode Selection Induction Mode Toggle Figure 2: Keypad and Display • Frequency Indicator: Indicates frequency in use; indicates when dual- frequency mode is activated.
SeekTech ST-305 Line Transmitter Batteries often recover after being subjected to high Getting Started loads. If time is allowed, batteries may recover enough to offer additional hours of operation. Installing/Changing Batteries Powering Up / Down To install batteries into the ST-305 line transmitter...
Transmitter 1. Attach the ST-305 line transmitter to ground and to the target line. The SeekTech ST-305 line transmitter is part of Ridgid’s Seektech cable and pipe locating system. Remove the ground stake from the end of the unit The ST-305 is used to energize a pipe or line with an and insert it into the ground.
SeekTech ST-305 Line Transmitter The selected frequency is shown by a lit LED. The 262 kHz is shown by a rapid flashing of the 33 kHz WARNING LED. (European version: 93 kHz.) To set the unit on 262 kHz, press the Frequency Key for more than one second (long press).
SeekTech ST-305 Line Transmitter The transmitter’s maximum current output depends Inductive Mode, to avoid coupling through the on the amount of resistance in the circuit. air with the receiver. • Start by using the lowest frequency and the CAUTION least amount of current needed to effectively illuminate the line.
SeekTech ST-305 Line Transmitter Inductive Clamp Method Inductive Mode 1. Be sure that the transmitter is positioned correctly over the line. Orientation Guide Figure 9: ST-305 with Inductive Clamp When using an inductive clamp, plug the inductive clamp jack into the receptacle provided at the end of the transmitter.
SeekTech ST-305 Line Transmitter Figure 12: ST-305 in Inductive Mode at 33 kHz Figure 13: Air Coupling Near the transmitter, the receiver reads on the 5. Lower frequencies couple poorly. Therefore, local dipole field around the transmitter. the ST-305 transmitter in Inductive Mode defaults to 33 kHz.
SeekTech ST-305 Line Transmitter the circuit in proportion to the frequency being used (i.e., higher AC frequencies add more impedance than lower ones). Note: The inductor core of the ST-305 emits the signal when the unit is transmitting in inductive Using High and Low Frequencies mode.
Service and Repair power cable running nearby, confusing the picture of where the original line is. The unit should be taken to a RIDGID Independent Authorized Service Center or returned to the factory. As a general rule, detecting with lower frequencies is...
SeekTech ST-305 Line Transmitter Trouble Shooting Guide PROBLEM REMEDY LEDs appear com- Try Powering the unit OFF and then back ON. pletely dark, completely light when Allow the unit to cool if it has been exposed to excessive heat from sunlight.
RIDGID® tools are warranted to be free of defects in workmanship and material. How long coverage lasts This warranty lasts for the lifetime of the RIDGID® tool. Warranty coverage ends when the product becomes unusable for reasons other than defects in workmanship or material.