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SECTION 6:

MAINTENANCE

6-14

PORT LF

0008595_REV_E

Once the Transducer Connector is unplugged, the transducer endcap should slide right out.

Clean, Inspect, and lightly Grease the O-rings as shown in

and

. EdgeTech

recommends the use of Parker’s Super O-lube silicone compound grease.

Figure 6-21: The Release End Cap O-rings

Figure 6-22: The Transducer End Cap O-rings

Summary of Contents for PORT LF

Page 1: ...EdgeTech 4 Little Brook Road West Wareham MA 02576 Tel 508 291 0057 Fax 508 291 2491 www EdgeTech com PORT LF Low Frequency U S E R H A R D W A R E M A N U A L 0008595_REV_E September 2017...

Page 2: ...ssued 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 EdgeT...

Page 3: ...tatic electricity Therefore extreme care should be taken when handling them Normal handling precautions involve the use of anti static protection materials and grounding straps for personnel WARNING H...

Page 4: ...rs if applicable At times however direct replacements may not exist When this happens EdgeTech will provide the necessary drivers with the replacement part if applicable EdgeTech may also change certa...

Page 5: ...PORT LF some features may be periodically upgraded Therefore the information in this manual is subject to change and should be used for reference only Liability EdgeTech has made every effort to docum...

Page 6: ...0008595_REV_E Revision History REVISION DESCRIPTION DATE APPROVAL A Release to Production N A RM B Updates N A RM C Updates N A RM D Updated Images and Content 09 2016 RM E Updated Images and Content...

Page 7: ...t been misused or abused in any manner nor have repairs been attempted thereon without the approval of EdgeTech Customer Service iii Written notice of the failure within the warranty period is forward...

Page 8: ...rough customs quickly and without duties being charged Whenever possible please send copies of original export shipping documents with the consignment 2 If the value of the equipment is over 1000 the...

Page 9: ...ix 6 Fax one invoice packing list and a copy of the airway bill to EdgeTech upon shipment...

Page 10: ...roducts Therefore we encourage you to contact EdgeTech Customer Service to offer any suggestions or to request technical support NOTE Please have your system Serial Number available when contacting Cu...

Page 11: ...ations for over 50 years The company has responded to the needs of the scientific Naval and offshore communities by providing equipment such as sub bottom profilers side scan sonar acoustic releases U...

Page 12: ...GROUND xi TABLE OF CONTENTS xii LIST OF FIGURES xv LIST OF TABLES xvii SECTION 1 OVERVIEW 1 1 1 1 Basic Functionality 1 1 SECTION 2 SPECIFICATIONS 2 1 2 1 Mechanical Specifications 2 1 2 2 Printed Cir...

Page 13: ...revention 4 12 4 2 Arming the Instrument 4 13 4 3 Acoustic Air Testing 4 16 4 3 1 Setup 4 16 4 3 2 Tests 4 16 4 4 Post Deployment 4 17 SECTION 5 BACS SERIES CODING 5 1 SECTION 6 MAINTENANCE 6 1 6 1 To...

Page 14: ...EXPERT TIPS A 1 Kynar Retention Rods A 1 Release Shaft A 1 Top Pad Eye A 1 Purging A 1 Pre Deployment Check A 1 Deployment A 1 REMOTE RELEASE B 1 Mechanical Drawing B 1 LF TANDEM KIT OPTION C 1 Mechan...

Page 15: ...Spring to Guide it into the Housing 4 8 Figure 4 12 The Bare Aluminum Band 4 8 Figure 4 13 The Proper Alignment of the Release End Orientation Key 4 8 Figure 4 14 Ensure Unit is Firmly Closed 4 9 Figu...

Page 16: ...6 17 Electronics Chassis Without the Battery Pack 6 11 Figure 6 18 Install the New Battery Pack 6 12 Figure 6 19 The Hardware for one Bracket 6 12 Figure 6 20 The Transducer Cable Connected to the Ele...

Page 17: ...mand Coding 2 3 Table 2 5 Standard Command Functions 2 3 Table 2 6 Transponder Specifications 2 4 Table 2 7 Power Supply Specifications 2 4 Table 2 8 Environmental Specifications Temperature 2 4 Table...

Page 18: ......

Page 19: ...DISABLE or ENABLE command it responds with a status reply message that indicates the orientation of the instrument tilted or not tilted 1 1 Basic Functionality The transponder function can be turned O...

Page 20: ......

Page 21: ...ther Materials Delrin Nylon Kynar Ultem Finish Hard anodized and Epoxy painted Yellow Release Type Mechanical motor driven push off Table 2 1 Standard Instrument Mechanical Specifications SPECIFICATIO...

Page 22: ...following sub sections 2 3 1 Command Receiver Specifications for the command receiver are as follows SPECIFICATION VALUE Sensitivity 78 dB re 1 Pa Receiver Type Multi stage band pass with hard limite...

Page 23: ...BACS command coding is described in the following table PAIR NUMBER 0 1 1 9 5 kHz 9 9 kHz 2 9 5 kHz 10 3 kHz 3 9 5 kHz 10 7 kHz 4 9 9 kHz 10 3 kHz 5 9 9 kHz 10 7 kHz 6 10 3 kHz 10 7 kHz Table 2 4 BACS...

Page 24: ...y Pack as a power supply Specifications for this Battery Pack are shown in the following table SPECIFICATION VALUE Design Life 0 C 2 years Design Life 0 C 20 000 replies 10 ms Table 2 7 Power Supply S...

Page 25: ...2 5 Figure 2 2 PORT LF Mechanical Standard 0010815...

Page 26: ...SECTION 2 SPECIFICATIONS 2 6 Figure 2 3 PORT LF DEEP Mechanical 0019564...

Page 27: ...ansducers beam pattern 3 2 Mechanical The Release Load is held through the Top Pad Eye Housing and Release Link There are isolation shoulder washers on the Top Pad Eye to prevent electrical contact wi...

Page 28: ...lanned At the end of a deployment this information is useful in determining whether forces such as strong currents or trawl activity have affected the mooring or platform The status reply indicates on...

Page 29: ...quested all battery packs are disconnected in transit to prolonging the battery life To use the PORT LF the Housing MUST be opened so that the battery can be plugged into the JP3 header connector on t...

Page 30: ...2 PORT LF 0008595_REV_E 2 Once the Anti Rotation Block has been removed the Purge Port Plug will be visible Pull the Purge Port Plug out of the end cap as shown in and FIGURE 4 2 Figure 4 2 Pulling t...

Page 31: ...ly is connected to the Release End Cap Carefully slide the assembly out enough to plug the connector from the battery pack into the electronics board connector JP3 if you are turning the system on To...

Page 32: ...the Housing 2 Gently pull the Release End Cap free from the Housing as shown in FIGURE 4 5 You may need to work it side to side to get it started but once the initial resistance is overcome the Relea...

Page 33: ...tor into the header JP3 on the circuit board When doing so ensure to line the pins up correctly as shown in FIGURE 4 6 and FIGURE 4 7 Figure 4 6 Connecting the Battery Pack to the JP3 Head Connector F...

Page 34: ...d lead the unit to fail Depending on how far the Release End had been pulled from the Housing it is important to consider the wires and cables that are within the Housing Whenever servicing the unit b...

Page 35: ...he Grounding Spring When inserting the Release End Cap 2 Gently guide the Electronics assembly back into the Housing taking care not to damage the sealing surface of the Housing or pinch any cables as...

Page 36: ...erting the Release End into the Housing ensure the grounding spring makes contact with the bare aluminum as shown in FIGURE 4 12 and FIGURE 4 13 Figure 4 12 The Bare Aluminum Band a Be sure to align t...

Page 37: ...4 9 b As the O ring enters the Housing firm but gentle pressure must be applied to seat the end cap fully against the Housing as shown in FIGURE 4 14 Figure 4 14 Ensure Unit is Firmly Closed...

Page 38: ...lease End Cap in place insert the Kynar retaining rod back into the slot Continue inserting the rod until it comes out the other end of the slot as shown in FIGURE 4 15 and FIGURE 4 16 Figure 4 15 Rep...

Page 39: ...ug 3 Replace the Anti Rotation Block using the two nylon screws as shown in FIGURE 4 18 The completed assembly is shown in ERROR REFERENCE SOURCE NOT FOUND Figure 4 18 Replace the Anti Rotation Block...

Page 40: ...anifold valve to the instrument and allow the instrument to sit of for 15 minutes Check the gauge afterwards and verify that the vacuum did not change This step is done to detect gross O ring problems...

Page 41: ...One 1 Release Link Silicone grease Phillips screw driver 1 Phillips preferred To Arm the Instrument 1 Remove the Anti Rotation Block from the Release End of the instrument Black Delrin block that keep...

Page 42: ...t damaged as shown in FIGURE 4 20 Figure 4 20 A Clean Release Shaft 3 Grease the threads on the shaft and inside the link with silicone grease 4 Thread the Release Link on to the Shaft until it bottom...

Page 43: ...4 15 5 Replace the anti rotation block using two nylon screws as shown in FIGURE 4 22 Figure 4 22 Replace the Anti Rotation Block using the Two Nylon Screws...

Page 44: ...been turned on it will be enabled b Unless otherwise specified the PORT LF will be shipped from EdgeTech with the interrogate frequency tuned to 11 kHz and the reply frequency set to 12 kHz 2 Using th...

Page 45: ...and it pings 512 times it will disable itself to save battery life Simply send the ENABLE command to use it again 4 4 Post Deployment After recovery the Unit should be cleaned and rinsed with fresh wa...

Page 46: ......

Page 47: ...250 ms and a pulse width of 22 ms 2 A word decode interval is 2 718 seconds 3 Following the first decode interval a 40 ms detection window is open 4 If a detection occurs in the window a second word...

Page 48: ......

Page 49: ...mplete disassembly and reassembly of the Unit These instructions will build upon the instructions in section 4 1 as they follow some of the same initial steps but are more in depth Suggested tools inc...

Page 50: ...1 1 2 Remove the Release End referring to sub section 4 1 2 3 Unplug the Transducer Cable JP1 from its header on the Circuit Board as shown in FIGURE 6 2 Figure 6 2 The Transducer Cable Connected to...

Page 51: ...ut once the initial resistance is overcome the Release should slide out easily as shown in FIGURE 6 4 Figure 6 4 Gently Pull the Transducer End from the Housing 6 The unit is now completely disassembl...

Page 52: ...rted into the section of Housing with the bare aluminum ring to ground the grounding spring To Assemble the PORT LF 1 Identify the bare aluminum ring inside one end of the Housing normally this is nor...

Page 53: ...from Transducer Side of the Housing to the Release Side 3 Gently guide the Transducer End Cap back into the housing Take care not to damage the inside of the housing or O ring sealing surfaces as sho...

Page 54: ...oper Alignment of the Transducer Orientation Key b As the O ring enters the Housing firm but gentle pressure must be applied to seat the end cap fully against the Housing as shown in FIGURE 6 9 Figure...

Page 55: ...Kynar retaining rod back into the slot as shown in FIGURE 6 10 Continue inserting rod until it comes out the other end of the slot as shown in FIGURE 6 11 Figure 6 10 Insert the Kynar Rod into the Slo...

Page 56: ...nto its header on the Circuit Board as shown in FIGURE 6 12 Figure 6 12 The Transducer Cable Connected to the JP1 Header Connector 6 Close the Release End referring to sub section 4 1 4 7 Purge the in...

Page 57: ...lipped upside down This is safe No components will touch the table if properly handled Battery replacements should always be done on a hard surface such as a table or work bench to prevent damage to a...

Page 58: ...he four screws that connect the Battery Pack retaining brackets to the electronics chassis as shown in FIGURE 6 14 and FIGURE 6 15 There are two screws on each Battery pack retaining bracket Figure 6...

Page 59: ...s seen to avoid being pinched by the retainer brackets which may result in Unit failure Figure 6 16 The proper wire orientation for the PORT LF battery pack 6 Remove the old Battery Pack and properly...

Page 60: ...ning brackets as shown in FIGURE 6 18 Figure 6 18 Install the New Battery Pack 8 Be sure to include the small pattern flat and lock washers on the screws as shown in FIGURE 6 19 Figure 6 19 The Hardwa...

Page 61: ...e sure to use only silicone grease to the Housing and O ring to facilitate insertion of the end cap Make sure the lubricant is compatible with Nitrile rubber Inspect the O ring for damage such as tear...

Page 62: ...the transducer endcap should slide right out 5 Clean Inspect and lightly Grease the O rings as shown in FIGURE 6 21 and FIGURE 6 22 EdgeTech recommends the use of Parker s Super O lube silicone compo...

Page 63: ...tortion of the Top Pad Eye lifting eye Check for corrosion of the purge plug Check and replace if needed all O rings o Each End Cap has two O rings a rounded O ring and a flat back up O ring The inner...

Page 64: ...ring 8 240 N90 MTL 43 1 O ring 10 x 14 x 2 mm N70 MTL 18 2 O ring 2 008 N70 MTL 31 2 Closure strip Kynar MTL 57 1 Assembly purge port MTL 30 Table 6 2 Common Spares Refer to 0008118 6 5 Callout Assemb...

Page 65: ...6 17 Figure 6 24 PORT LF Callout Assembly Drawing Page 1 of 2 0008118...

Page 66: ...MAINTENANCE 6 18 Figure 6 25 PORT LF Callout Assembly Drawing Page 2 of 2 0008118...

Page 67: ...ilicone grease to the release shaft threads EdgeTech recommends Novagard G624 When threading the release link onto the shaft do not leave it bottomed out Screw the link all the way on and then back it...

Page 68: ...LEASE The Remote Release is a means of physically separating the Release and Transceiver ends of the PORT for use in certain operations Mechanical Drawing Mechanical Drawings of the Remote Release are...

Page 69: ......

Page 70: ...REMOTE RELEASE B 2 Appendix Figure B 1 Remote Release 0012120...

Page 71: ...B 3 Appendix Figure B 2 PORT LF Optional Remote Release 0012266...

Page 72: ...B 4 Appendix Figure B 3 PORT LF Optional Remote Release Callout 0007639...

Page 73: ...st is the oblong ring NOTE When used to release heavy loads the last thread of the Release Link may pull out Carefully inspect the release links after recovering the tandem set Replace any damaged rel...

Page 74: ...C 2 Appendix Figure C 1 Optional Tandem Kit Diagram 0017625...

Page 75: ...C 3 Appendix Figure C 2 PORT LF Optional Tandem Kit Callout Diagram 0008237...

Page 76: ......

Page 77: ...ack portion of the unit increases lift load rating to support heavy mooring deployments The Strong Back option for the PORT acoustic release increases the release rating of a PORT LF SD to 2 500 pound...

Page 78: ...D 2 Appendix Figure D 1 PORT LF Optional Strongback Diagram 0017674...

Page 79: ...D 3 Appendix Figure D 2 PORT LF Optional Strongback Kit Callout Diagram 0008166...

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