User Manual

Introduction
transmitter and special non-magnetic housing are put aside, and the battery-operated Eclipse transmitter
is used with a standard housing. A standard Eclipse system can be upgraded to the Eclipse SST system.
Whether running the Eclipse SST transmitter or the battery-operated Eclipse transmitter, the target-in-the-
box
®
locating feature and look-ahead
®
capability enable Intuitive
®
tracking of the transmitter. The receiver
menu options provide quick verification of mode settings and also the ability to program the intended
position of the transmitter for easier remote steering—this is DCI’s Target Steering
®
feature.
To further expedite wireline connection time, the SST system can be used with the DigiTrak CableLink
®
Connection System. The CableLink system is preinstalled in drill rods so that the electrical connection is
made when the rods are threaded up.
There are pieces of equipment, tooling, and some specialty items required for the operation of the SST
system that are not supplied by DCI. Below is a list of items needed for the operation of the SST system
and to make the wire connections:
 Non-magnetic housing for SST transmitter – Contact DCI for information about compatible non-
magnetic housings for the SST transmitter.
 Monel (non-magnetic drill rod) approximately 15 ft (3 m) long for use between the non-mag
housing and the first drill rod. A second monel may be required if you are using a mud motor.
 Fish tape or device to fish wire through rod
 Approximately 20 ft (6 m) of 10-gauge wire
 Butt splices for 10/12 gauge wire
 Crimper
 Heat shrinks
 Heat gun
 Transit or theodolite
 String for string line
 Tape measure
 12V battery or power supply
 Amp meter
 Digital level
There are some important terms and procedures that are used specifically with the SST system that you
should understand. These include the following:
¾ Yaw / Azimuth – Heading or direction with respect to the earth’s magnetic field. We use yaw to
refer to the heading of the transmitter with respect to the earth’s North Pole.
¾ Reference Yaw (Ref Yaw) – Heading or direction of the SST transmitter measured when it is
accurately positioned on the surveyed borepath prior to the start of the drill run. The value for the
Ref Yaw is determined at the start of the SST operating procedure.
¾ “Shooting the Probe” – Term commonly used for the procedure of measuring the Ref Yaw using
the SST transmitter (probe).
¾ 360 Degree Roll – Standard HDD walkover systems use a “clock” roll orientation. The SST uses
a 1-degree increment roll sensor where 0° = 12 o’clock, 90° = 3 o’clock, 180° = 6 o’clock, and
270° = 9 o’clock.
¾ Roll Offset – Value used to compensate for the difference between the tool bit’s roll orientation
and the SST transmitter’s roll orientation. This value is needed because the torquing process
usually results in the transmitter's roll position not matching the bit's roll position.
Some terms and techniques used in this manual are considered basic to the Eclipse locating system. If
you have never used the Eclipse system, DCI strongly recommends that you read the operator’s manual
8 Eclipse
®
SST
®
Operator’s Manual