Push off release transponder - low frequency (79 pages)
Summary of Contents for Edgetech 8242XS RELEASE
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8242XS RELEASE U S E R H A R D W A R E M A N U A L 004815_REV_K 2/11/2025 EdgeTech 4 Little Brook Road West Wareham, MA 02576 Tel: (508) 291-0057 Fax: (508) 291-2491 www.EdgeTech.com...
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The information, figures, and specifications in this manual are proprietary and are issued in strict confidence on condition that they not be copied, reprinted, or disclosed to a third party, either wholly or in part, without the prior written consent of EdgeTech. Any reproduction of EdgeTech-supplied software or file sharing is strictly prohibited.
ATTENTION – READ THIS FIRST! All personnel involved with installing, operating, or maintaining the equipment described in this manual should read and understand the warnings and cautions provided below. CAUTION! This equipment contains devices that are extremely sensitive to static electricity. Therefore, extreme care should be taken when handling them.
HARDWARE VARIATIONS AND COMPATIBILITY The 8242XS Release contains both standard and proprietary hardware. At times, EdgeTech may change the standard components due to their availability or performance improvements. Although the component manufacturers and their models and styles may change from unit to unit, replacement parts will generally be interchangeable.
Purpose of this Manual The purpose of this manual is to provide the user with information on the setup and use of EdgeTech’s 8242XS Release. Although this manual encompasses the latest operational features of the 8242XS Release, some features may be periodically upgraded. Therefore, the information in this manual is subject to change and should be used for reference only.
All equipment manufactured by EdgeTech is warranted against defective components and workmanship for a period of one year after shipment. Warranty repair will be done by EdgeTech free of charge. Shipping costs are to be borne by the customer. Malfunction due to improper use is not covered in the warranty, and EdgeTech disclaims any liability for consequential damage resulting from defects in the performance of the equipment.
EdgeTech provides software services free of charge. This software agreement does not address customer- specified modifications or enhancements. These services may be ordered separately. Furthermore, EdgeTech software upgrades are meant for the sole use of EdgeTech customers. Any reproduction of EdgeTech-supplied software or file sharing is strictly prohibited.
Refer to the RMA number on all documentation and correspondences. All returned materials must be shipped prepaid. Freight collect shipments will not be accepted. All equipment should be adequately insured for shipping, but equipment belonging to EdgeTech must be insured for full value.
CUSTOMER SERVICE Customer service personnel at EdgeTech are always eager to hear from users of our products. Your feedback is welcome and is a valuable source of information that we use to improve these products continually. Therefore, we encourage you to contact EdgeTech Customer Service to offer any suggestions...
— for the acquisition of underwater data, including marine, estuarine, and coastal applications — for over 50 years. EdgeTech responds to the needs of the Scientific, Naval, and Offshore communities by providing industry- leading equipment — such as Sub-Bottom Profilers, Side Scan Sonar, Acoustic Releases, USBL Positioning Systems, and Bathymetric Systems —...
TABLE OF CONTENTS ATTENTION – READ THIS FIRST! ......................iii Warnings, Cautions, and Notes ........................ iii HARDWARE VARIATIONS AND COMPATIBILITY .................. iv ABOUT THIS DOCUMENT ........................v Purpose of this Manual ..........................v Liability ..............................v Revision History ............................v WARRANTY STATEMENT ........................
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8242XS Disassembly ........................ 5-20 5.2.1 Remove the Clevis End Cap ....................5-22 8242XS Assembly ........................5-24 5.3.1 Clevis End Cap Assembly ..................... 5-24 Battery Replacement ....................... 5-26 O-Ring Care and Replacement ....................5-28 5.5.1 Additional O-Rings ......................5-28 8242XS Release 004815_REV_K...
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xiii 5.5.2 O-Ring Service Disassembly ....................5-28 General Cleaning and Inspection ..................... 5-30 5.6.1 Suggested Inspection Checklist................... 5-30 5.6.2 General Inspection and Replacement Schedule ..............5-30 8242XS Kits and Options ...................... A-1 Assembly Drawings with Callouts and Associated BOMs ............A-1 Field Kit ...........................
OMMAND YSTEM from 2022 and legacy Binary Acoustic Command Figure 1-1: An 8242XS Release in the Arctic Sea Structure (EBACS) code structure. EBACS coding structure provides 131,000 possible secure command codes and is field-proven and widely used in many maritime environments.
2.0 SPECIFICATIONS Specifications for the 8242XS Release are provided in the subsections that follow. 2.1 Mechanical and Physical Specifications Mechanical specifications for the 8242XS Release are as follows: SPECIFICATIONS VALUE Release mechanism Spring-driven, rotary type with advantage hook Recommended max static load rating...
11 data bits and 5 parity bits, yielding roughly 2000 commands per tone pair. On the other hand, the extended BACS commands are composed of 17 data bits and 7 parity bits, yielding roughly 131,000 commands per tone pair. Both legacy and extended BACS commands maintain a minimum Hamming distance of four bits. 8242XS Release 004815_REV_K...
8011M and PACS LF deck box firmware must be up to date to send these commands. 8011M firmware should be 1.701 or later, and the PACS LF should be 2.01 or later. Contact EdgeTech for details on updating the firmware on your deck box.
Disable Transponder RELEASE Activate mechanical release Table 2-5: Standard Command Functions 2.8 Environmental Specifications TEMPERATURE VALUE Operating -10°C to +40°C (14°F to 104°F) Storage (Batteries Removed) -20°C to +85°C (-4°F to 185°F) Table 2-6: Standard Command Functions 8242XS Release 004815_REV_K...
The 8242XS requires a deck box and dunking transducer to send and receive commands. Compatible EdgeTech deck boxes are the P.A.C.S and 8011M, with several different dunking transducer options available for purchase separately. All are light, durable, water-resistant, and easy to use. Product manuals...
The status reply indicates one of four states: • "upright (within 45° of upright)" and released "upright (within 45° of upright)" and not released • 8242XS Release 004815_REV_K...
• "tilted (more than 45° from upright)" and released • "tilted (more than 45° from upright)" and not released After receiving a command, the unit transmits a series of encoded pings. The four possible status replies are: PATTERN STATUS 15 pings at 2-second intervals Upright;...
4.0 OPERATING THE SYSTEM This section of the manual provides instructions for typical operations. 4.1 Battery Pack Connection: Turning the Unit On and Off 8242XS releases are carefully tested and shipped from the factory with a new battery pack installed but disconnected to preserve battery life.
4.1.2 Removing the Lifting Support and Two End Cap Clamps 1. Carefully remove the three titanium bolt assemblies securing the upper and lower clamp assemblies using a ½” wrench and ½” socket wrench, as shown in IGURE IGURE 8242XS Release 004815_REV_K...
CAUTION! Never put the socket wrench over both nuts when removing the top nut from the three titanium bolts. This can cause the nuts to seize together and prevent loosening the bolt. Figure 4-4: Top Bolt Assembly Removal Figure 4-5: Clamp Bolt Assembly Removal 2.
1. Grip the Transducer by its base close to the metal end cap, and pull the Transducer End Cap from the Housing, taking care not to squeeze or deform the Transducer or break the transducer cable. Figure 4-8: Removing the Transducer End Cap 8242XS Release 004815_REV_K...
Figure 4-9: The Removed Transducer End Cap 4.1.4 Connecting Power The electronics assembly and battery pack are mounted to an aluminum tray attached to the release end cap. The battery can be plugged in once the transducer end cap is removed. 1.
As the O-ring enters the housing, firm but gentle pressure must be applied 4-11. to seat the end cap fully against the Housing, as shown in IGURE Figure 4-11: Apply Pressure to the Base of the Transducer End to Fully Seat it into the Housing 8242XS Release 004815_REV_K...
4.1.6 Attaching Lifting Support Cages Figure 4-12: Cage Assembly for Transducer End Cap 1. Mount one side of the cage onto the housing. Tap it down softly with a mallet, as shown in IGURE 4-13. Figure 4-13: Attach One Part of the Lifting Support...
Gently use a mallet to tap the cage together. Try to keep the gaps between the clamps on both sides even, as shown in 4-15. IGURE Figure 4-15: Use the Mallet to Ensure the Lifting Support is Securely Attached 8242XS Release 004815_REV_K...
CAUTION! The load capacity is less than 1/10 the rated load if the two 1/2 in. (1.27 cm.) diameter x 4 in. (10 cm.) spreaders are not installed in the cage. The horizontal members of the cage must form a complete box CAUTION! Ensure the Nylon washers are included in the reassembly procedure and are placed between the titanium washer and the Support Brackets.
[2] Spreaders [3] 5/16’ Titanium Hardware Assemblies: 2 of the side securing the clamps and 1 on top securing the cage. Figure 4-17: Top End Cap Completed Assembly Figure 4-18: Thread Top Bolt Assembly Using the Wrench 8242XS Release 004815_REV_K...
4-11 4.1.7 Replace the Purge Port Plug CAUTION! Before reinserting the purge port plug, ensure it is clean and debris-free. Even small debris can cause the unit to flood. NOTE: The shoulder on the Purge Port Plug is approximately flush with the end cap when it is inserted fully, and the glass epoxy retainer is wrapped around the .19-inch diameter stub 1.
Prevention If the release has been opened, it is important to purge it to prevent internal condensation and detect leaks. EdgeTech 8242XS releases have a .312 diameter purging port in the Clevis end cap. (see IGURE 4-20). A vacuum pump, dry nitrogen gas cylinder, and compound pressure/vacuum gauge arranged on a manifold setup should be acquired to purge the release.
(except for battery replacement). Figure 4-21: Clevis Rotation Drawing The Model 8242XS release is designed to be used with the EdgeTech Release Link. The release link will accept a standard 5/8-inch shackle (maximum .77in [1.9 cm.] pin diameter and minimum 1.06in [2.7 cm.]) opening.
To Arm the Instrument: 1. Hook the anchor link hook to the anchor link (see 4-21 4-22 ). While supporting IGURE IGURE the hook and link together with your hands, pivot the hook and anchor link forward so the non- 8242XS Release 004815_REV_K...
4-15 hooked end of the anchor link fits against a low slot on the slotted release latch (see 4-23). IGURE Then pivot it all back, allowing the T-shaped release shaft to fit into the hole in the slotted release latch (see Figure 4-24). Release Hook Pivoted Forward Pivot All Back Allowing T- Release Hook Hooked...
NOTES: Standard Command Functions are ENABLE, DISABLE, and RELEASE. Detailed information and instructions on EdgeTech deck boxes are found in their user manuals provided on the EBSITE Contact if the command card is lost.
Using a deck unit, ascertain whether the 8242XS is enabled or disabled by interrogating it. If the unit has just been powered up, it will be enabled. Unless otherwise specified, the 8242XS will be shipped from EdgeTech with the interrogate frequency tuned to 11 kHz and the reply frequency set to 12 kHz. STATUS...
4-19 4. Orient the release vertically (Transducer up) and send the DISABLE command. The instrument should reply with a series of 15 pings at a 1-second rate, indicating released and tilted less than 45 degrees. Now range on the instrument again with the deck unit. This time, the unit should not transmit a reply pulse.
5.1 Housing and Release Preparation and Care Caring for the 8242XS release requires opening the release. Anytime this is done, great care should be taken in depressurizing and handling the release to ensure a long product life and the safety of those handling the release.
5-21 2. Remove the lifting support, referring to sub-section 4.1.2. 3. Remove the transducer end, referring to sub-section 4.1.3. Transducer Battery Cable Cable Figure 5-1: Battery and Transducers Cables 4. Disable the power supply by disconnecting the connector from the battery pack to the main board.
5-3. IGURE 5. Place a wrench into the gap between the two parts of the Clevis End Cap to pry one side off, as shown in 5-4. IGURE Figure 5-4: Pry Clevis End Apart With Wrench 8242XS Release 004815_REV_K...
5-23 6. Tap the other half of the clamp with a soft mallet to free the end cap. Figure 5-5: Tapping The Other End of The Clamp With A Mallet CAUTION! When removing the Release End Cap Assembly with the electronics attached, take care to pull the chassis out straight and not drag the chassis edge on the housing bore seal.
5-24 5.3 8242XS Assembly The following section details the reassembly of the 8242XS release. Great attention should be paid to maintaining the watertight integrity of the release. 5.3.1 Clevis End Cap Assembly 1. Prepare the sealing surfaces for assembly by cleaning them with a lint-free towel or swab moistened with alcohol.
5-25 Figure 5-8: Cross Section of the Face Seal, Gland, and Backup O-Rings 3. Carefully press the piston seal into the housing. The backup O-ring is properly aligned if it enters the housing before the O-ring while the backup ring's curved side faces the O-ring. 4.
Battery Pack Retaining Brackets during reassembly. To Replace the Batteries: 1. Remove both end caps of the 8242XS, disconnect the battery and transducer cables, and slide the electronics chassis from the housing as described in 5.2. SECTION 8242XS Release 004815_REV_K...
5-27 2. Remove the four screws that connect the battery pack retaining brackets to the electronics chassis, as shown in 5-10. There are two screws on each Battery pack retaining bracket. IGURE NOTE: Before removing the retainer brackets and screws, be sure to note the orientation of the wires.
(if needed) with alcohol. Inspect for scratches or nicks, which could impair the O-ring’s ability to provide a seal. 4. Next, apply a light coat of O-ring lubricant to the surfaces and O-rings. EdgeTech recommends Parker Super O-Lube. Be sure to use only silicone grease on the housing and O-ring to facilitate the insertion of the end cap.
PART SERVICE / INSPECTION REPLACEMENT NOTES Any questionable O-ring should be immediately Before and After Each O-ring As needed replaced. EdgeTech recommends the use of Deployment Parker Super O-lube silicone compound grease. Before Each Battery Pack As needed Deployment...
A.0 8242XS Kits and Options A.1 Assembly Drawings with Callouts and Associated BOMs Callout Assembly Drawings for the 8242XS are shown below. Figure A-15: Assy Sub Main 8242XS MART Drawing (PN 0002737)
INCH OD NYLON MTL 22 ANODE ZINC 8242 XS 2.36 INCH 1.75 INCH MTL 23 LABEL EDGETECH MTL 24 LABEL SERIAL NUMBER EDGETECH MTL 25 ADHESIVE THREADLOCKER LOCTITE 243 BLUE MED STRENGTH MTL 26 LUBRICANT AQUA SHIELDBOTTLE CONTINUED NEXT PAGE...
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MTL NUMBER DESCRIPTION QUANTITY MTL 27 LUBRICANT O-RING SUPER .10 OZ MTL 28 O-RING BUNA-N 70 2-245 STANDARD ROUND BLACK MTL 29 O-RING BUNA-N 70 2-240 STANDARD ROUND BLACK MTL 30 O-RING BUNA-N 90 8-240 BACKUP PARBAK ROUND BLACK MTL 31 HARDWARE SCREW STD PAN HD PHILLIPS 8-32 0.3125 INCH NYLON MTL 32 PLUG RETAINER 8242 G10 FIBERGLASS...
This table lists the parts of the 8242XS electronics chassis as depicted in A-15 A-16. IGURE IGURE MTL# DESCRIPTION QUANTITY 0002650 REV G ASSY SUB ELECTRONICS CHASSIS 8242 XS MTL 1 BRACKET TOP 8242 SUPPORT PVC MTL 2 BRACKET CART BATTERY HOLD DOWN AL MTL 3 BRACKET 8242 PCB / BATTERY AL MTL 4...
MTL 30 CONTACT FEMALE CRIMP 22-30 AWG GOLD ROHS HARDWARE STANDOFF STD MALE / MALE 1/4-20 X 0.370 INCH MTL 31 MACHINED 303 SS CONTINUED NEXT PAGE Table A-4: BOM 0002780- ASSY SUB RELEASE MECHANISM 8242 XS 8242XS Release 004815_REV_K...
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A-11 LABEL # DESCRIPTION QUANTITY HARDWARE STANDOFF STD ROUND MALE / MALE 1/4-20 0.375 INCH MTL 32 DIA 1.50 INCH LENGTH AL HARDWARE STANDOFF STD HEX F/F 0.375 INCH HEX 01 INCH LENGTH MTL 33 MTL 34 O-RING BUNA-N 70 2-110 STANDARD ROUND BLACK MTL 35 O-RING BUNA-N 70 2-115 STANDARD ROUND BLACK MTL 36...
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MTL 77 LUBRICANT GREASE DIELECTRIC SILICONE NOVAGARD MTL 78 DOC WORK INSTRUCTION 8242 MOTOR ASSEMBLY MTL 79 TOOL CRIMP 22-30 AWG SIDE ENTRY RATCHET TERMINAL KK Table A-4: BOM 0002780- ASSY SUB RELEASE MECHANISM 8242 XS (Continued) 8242XS Release 004815_REV_K...
A-13 A.2 Field Kit DESCRIPTION QUANTITY 0003102 REV E ASSY TOP KIT BACS FIELD SERVICE MTL 1 ANODE ZINC 8242 XS 2.36 INCH 1.75 INCH MTL 3 HARDWARE BOLT STD MACHINE HEX HD 5/16-18 2.25 INCH MTL 4 HARDWARE WASHER STD FLAT 0.3125 ID 0.75 OD 5/64 THICK TI MTL 5 HARDWARE BOLT STD MACHINE HEX HD 5/16-18 1.75 INCH TI MTL 6...
A-15 A.4 8242Xs Remote Option The Remote Release option physically separates the release and transceiver ends of the 8242XS for use in certain operations. MTL NUMBER DESCRIPTION QUANTITY 0009056 REV D ASSY TOP MODEL 8242 XS ACOUSTIC REMOTE RELEASE ASM 1 ASSY SUB RELEASE MECHANISM 8242 XS REMOTE RELEASE MTL 17 DUMMY PLUG 8242 DIAGNOSTICS PORT NAB...
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HARDWARE BOLT STD MACHINE HEX HD 5/16-18 1.75 INCH TI HARDWARE WASHER STD FLAT INSULATING 12 0.26 INCH ID 0.688 MTL 86 INCH OD NYLON MTL 87 LABEL EDGETECH 04 INCH 04 INCH MTL 88 LUBRICANT AQUA SHIELD BOTTLE MTL 89 LUBRICANT O-RING SUPER .01 OZ...
When a Tandem is used with a mooring it can be recovered by releasing the 8242XS Release. In the event of a failure of the mooring to detach from the anchor, the RELEASE command can be sent to both 8242XS’s freeing both the oblong ring and chain assembly.
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