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Related Manuals for CDI CD42-STS
Summary of Contents for CDI CD42-STS
- Page 1 CD42-STS Subsea Diver/ROV Pig Location and Tracking System USER GUIDE 24-HOUR EMERGENCY TELEPHONE NUMBER +1(918)645-0477 1801 North Juniper Avenue Broken Arrow, Oklahoma 74012 U.S.A. +1 (918) 258-6068 worldwide www.pigging.com support@pigging.com...
- Page 2 The hardware and firmware described in this document are designed, manufactured and written by CDI. The hardware and firmware copyright © CDI with all rights reserved. This document 2007-2016 CDI. All rights reserved.
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Page 3: Table Of Contents
CD42-STS Subsea Diver/ROV Pig Location and Tracking System CONTENTS INTRODUCTION ...............4 DEPLOYMENT ................4 COMPONENTS .................4 POWER ..................5 DETECTION METHODS ............5 GETTING STARTED ..............6 Physical Checkout ..............6 Power ON ................7 ..............8 Operational Checkout OPERATION ................11 Tracking .................11 Locating .................14 Pinpointing ................15 CHANGING/INSTALLING BATTERIES ........18... -
Page 4: Introduction
DEPLOYMENT The CD42-STS may be deployed below the ocean to depths of 8,0000 ft [2,439 m] and is designed to be either carried by a diver or ROV. It is rated for a maximum pressure of 3,650 psi [245 bar]. -
Page 5: Power
The CD42-STS is powered by six (6) D-cell alkaline batteries. The batteries are located in the unit’s stainless steel housing. Changing these batteries requires disassembly of the housing (see pg. 18). The CD42-STS will operate for up to 60 hours (2.5 days) on a change of batteries. DETECTION METHODS The CD42-STS can track and locate any pig or inline inspection (ILI) tool equipped with a 22 Hz electromagnetic transmitter. -
Page 6: Getting Started
CD42-STS Subsea Diver/ROV Pig Location and Tracking System GETTING STARTED Physical Checkout The CD42-STS receiver is assembled at CDI and should be ready for operation upon receipt. The batteries are installed and the unit is sealed and tested for functionality just prior to shipment. -
Page 7: Power On
CD42-STS Subsea Diver/ROV Pig Location and Tracking System Power ON Remove the large hexagonal plug located on the antenna side of the system to access the power switch. (You’ll need a 1–5/8-in. open-end wrench or adjustable wrench to loosen plug). -
Page 8: Operational Checkout
The LEDs on each side will flash in succession from bottom to top and back down five times as shown here. The CD42-STS is operational when the self-check has completed, but you may wish to adjust the signal gain before placing the unit into service. - Page 9 CD42-STS Subsea Diver/ROV Pig Location and Tracking System Signal Gain When the self-check is complete, the display will indicate the last signal gain (sensitivity) setting stored in the memory by flashing three times and then remain on for another three seconds. Here, the unit has been set to a relatively low gain level of 3.
- Page 10 Adjustment (cont.) Gain No LEDs lit indicate zero gain position. Low gain settings (1,2, and 3) are useful when the CD42-STS is used in very close proximity to a transmitter such as at a pig launcher or receiver. ZERO GAIN...
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Page 11: Operation
LED will pulse to indicate the pulses received by the transmitter. Tracking a Moving Pig The CD42-STS system must be within a few meters of a pipeline, with the antenna held parallel to the pipeline. Typically, the diver or ROV... - Page 12 NOTE: When the CD42-STS receiver is used in conjunction with an ROV, the thruster motors will create large magnetic fields that will interfere with the operation of the CD42-STS receiver. It may be necessary to park the ROV periodically to create a quiet electromagnetic environment for this system.
- Page 13 CD42-STS Subsea Diver/ROV Pig Location and Tracking System As the pig approaches the unit, the measured signal strength increases. This is a two-dimensional representation of a signal peak: SIGNAL PEAK COIL CENTERLINE The peak LED will shift to the right to indicate the increasing average strength as transmitter pulse strength increases.
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Page 14: Locating
Locating a stuck pig in a pipeline is one of the most useful features of the CD42-STS. The best way to minimize the amount of searching for a stuck pig is to properly track the pig in the pipeline so that when and if it does become stuck, the amount of pipeline in which it could be is at a minimum. - Page 15 CD42-STS Subsea Diver/ROV Pig Location and Tracking System Back-track again until the perceived maximum signal is received. At this point the CD42-STS receiver is at its closest approach to the pig. This point on the pipeline can be marked for cutting or other remedial actions.
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Page 16: Pinpointing
“pinpointing” can be used to further increase the location accuracy. With the pinpointing method, the antenna of the CD42-STS is rotated to be perpendicular to the pipeline rather than parallel. Once rotated, the operator looks for the minimum (“null”) signal rather than the maximum. - Page 17 CD42-STS Subsea Diver/ROV Pig Location and Tracking System This method relies upon the physics of the coupling between the magnetic transmitter inside the pipeline and the receiving antenna on the outside of the pipeline. SIGNAL “NULL” COIL CENTERLINE Page 17 of 36...
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Page 18: Changing/Installing Batteries
CD42-STS Subsea Diver/ROV Pig Location and Tracking System CHANGING/INSTALLING BATTERIES The CD42-STS is shipped with 1.5 VDC D-cell alkaline batteries installed. The estimated battery life is approximately 60 hours (2.5 days). WARNING Do not perform this procedure in a hazardous environment. - Page 19 CD42-STS Subsea Diver/ROV Pig Location and Tracking System CAUTION: The end plate is heavier than it looks; be careful not to damage the O-ring or circuitry under the plate. Do not bump or drop the end plate. Avoid straining the ribbon cable or cable connections.
- Page 20 CD42-STS Subsea Diver/ROV Pig Location and Tracking System Remove batteries. Note battery polarity. The four upper batteries are installed Positive (+) end facing out. WARNING When installing batteries, replace all batteries at the same time. When replacing batteries, use batteries from the same package or manufacturing batch whenever possible.
- Page 21 CD42-STS Subsea Diver/ROV Pig Location and Tracking System Before replacing end plate, remove and inspect O-ring and O-ring groove for • dents • deformities • ruptures • nicks • scratches • dirt • foreign objects or anything else that might interfere with a proper seal.
- Page 22 CD42-STS Subsea Diver/ROV Pig Location and Tracking System Ensure plate is lined up properly before installing fasteners. Note the clocking orientation of the end cap to the antenna positioning. Reinsert the eight (8) socket head cap screws (1/4–20 x 5/8) and lock washers.
- Page 23 CD42-STS Subsea Diver/ROV Pig Location and Tracking System Tighten the cap screws by hand until snug. Tighten each screw in a rotating cross pattern (shown below) in 20 inch- pound increments. (If using a powered driver, avoid over-tightening). Continue until the cap screws reach 60-inch pounds torque.
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Page 24: Optional Equipment
CD42-STS Subsea Diver/ROV Pig Location and Tracking System OPTIONAL EQUIPMENT ROV Handles These easily-installed “fishtail” handles are designed for efficient ROV tooling (CDI Part # 943-50-0003-01). Installation Tool required: 1/8-in. Allen wrenc 1. Remove flat socket head screws (two on each side). - Page 25 CD42-STS Subsea Diver/ROV Pig Location and Tracking System 2. Remove stock handles. 3. Insert ROV handles. 4. Secure but do not over-tighten. Page 25 of 36...
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Page 26: Close Proximity Antenna (Cpa)
CD42-STS Subsea Diver/ROV Pig Location and Tracking System OPTIONAL EQUIPMENT (CONT.) Close Proximity Antenna (CPA) The Close Proximity Antenna (CPA)* is sensitive only to nearby signals. Where multiple pigs are in close proximity to one another, the CPA is useful to distinguish an individual PIG without cross-interference from adjacent pigs. - Page 27 CD42-STS Subsea Diver/ROV Pig Location and Tracking System 2. CAREFULLY retrieve the antenna wiring from the unit until you find the connector. Page 27 of 36...
- Page 28 CD42-STS Subsea Diver/ROV Pig Location and Tracking System 3. Disconnect standard antenna. Inspect O-ring* and O-ring groove before installing or replacing antenna unit. (See pg. 21 for O-Ring inspection and maintenance information.) *CDI Part No. 700-50-2222-90 Page 28 of 36...
- Page 29 CD42-STS Subsea Diver/ROV Pig Location and Tracking System 4. Connect the CPA and thread the excess wiring back into the unit. 5. Line up CPA with unit as shown. Note orientation of cutout to Power Switch cap (if antenna is improperly installed,...
- Page 30 CD42-STS Subsea Diver/ROV Pig Location and Tracking System 6. Reinsert the six (6) socket head cap screws (1/4–20 x 5/8 in.) and lock washers. See tightening sequence on next page. Tighten the cap screws by hand until snug. Page 30 of 36...
- Page 31 CD42-STS Subsea Diver/ROV Pig Location and Tracking System Tighten each screw with Allen wrench in a rotating cross pattern (shown below) in 20 inch-pound increments. (If using a powered driver, avoid over-tightening). Continue until the cap screws reach 60-inch pounds torque. After reach- ing the 60-inch pound level continue the torque pattern and torque to 70-inch pounds.
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Page 32: Warranty, Care, & Maintenance
Upon receipt of the equipment and Purchase Order, CDI will examine the equipment and make a determination of the nature and cause of the defect. If the defect is not covered by the warranty, CDI will quote to Purchaser the cost for replacement or repair equipment, and will not proceed until Purchaser delivers a written acceptance of the quotation. -
Page 33: Care And Maintenance
Failure to perform these operations nullifies this warranty. CDI equipment should only be operated by qualified personnel who are familiar with any and all manuals and procedures for said equipment’s operation. -
Page 34: System Specifications
CD42-STS Subsea Diver/ROV Pig Location and Tracking System SYSTEM SPECIFICATIONS Detection Type: Non-Intrusive Electromagnetic Applications: Tracking and/or Locating via Diver or ROV Deployment: Subsea (ROV or Diver) Sensor: Wire-wound Antenna Detection Direction: Bi-Directional Devices Detected: Electromagnetic Transmitters (Standard CD42 Family) Detection Speed: 0.01 meter/sec to 20 meter/sec... -
Page 35: Notes
CD42-STS Subsea Diver/ROV Pig Location and Tracking System NOTES Page 35 of 36... -
Page 36: About Cdi
Arrow, Oklahoma, just 12 miles from downtown Tulsa. Incorporated in 1982, CDI has proudly been manufacturing products in the United States for more than 32 years. CDI currently employs 45 people in the areas of electronics and mechanical design, software and firmware programming, electronics manufacture, machining, and more.