operation and maintenance manual for … · transmit: [tp2 or tp3 beacon] each reply uses (150 w...

4377MN0002 REV E

OPERATION AND MAINTENANCE MANUAL

FOR THE

ORE OFFSHORE MODEL 4377A & 4378A

TELEMETRY MULTIBEACONS

EdgeTech, 4 Little Brook Road, West Wareham, MA 02576 USA

Phone: 508-291-0057 Fax: 508-291-2491 http://www.edgetech.com

Copyright ©2012 EdgeTech

All Rights Reserved

This manual, 4377MN0002, is the Operation & Maintenance Manual for the Model 4377A and 4378A Multibeacons and the Instruction Manual for the Model 4325A,B Remote Acoustic Projectors and the Instruction Manual for the Model 4335A-D Directional Remote Acoustic Projector.

------------------ NOTE ------------------

ALWAYS LUBRICATE THE UNDERWATER CONNECTOR’S PLUG

AND SOCKET AFTER EACH USE WITH A COMPATIBLE GREASE.

TABLE OF CONTENTS

iii

SECTION PAGE 1. INTRODUCTION ................................................................................................................................1-1

1.1. Lifetime Calculations .......................................................................................................................1-4 2. SPECIFICATIONS ...............................................................................................................................2-1

2.1. Mechanical .....................................................................................................................................2-1 2.2. Environmental ................................................................................................................................2-2 2.3. Power (Both Telemetry module & Multibeacon module) ....................................................................2-2 2.4. Transmitter ....................................................................................................................................2-2 2.5. Transducer .....................................................................................................................................2-2 2.6. Responder Operation ......................................................................................................................2-2 2.7. Transponder Operation ...................................................................................................................2-3 2.8. Telemetry Module ...........................................................................................................................2-3

3. OPERATION AND CONFIGURATION ....................................................................................................3-1 3.1. Operation and Deployment ..............................................................................................................3-2 3.2. TRANSPONDER CHECK ...................................................................................................................3-3 3.3. MOUNTING ....................................................................................................................................3-3 3.4. External Power Sources ...................................................................................................................3-4 3.5. Battery Charging ............................................................................................................................3-5 3.6. Disassembly/Reassembly.................................................................................................................3-6

3.6.1. Disassembly/Reassembly ..........................................................................................................3-6 3.6.2. Care of the O-Ring Seal ............................................................................................................3-7

3.7. PRESSURE GAUGE ..........................................................................................................................3-8 3.8. Internal Configurations ...................................................................................................................3-8

3.8.1. Operational Configuration .........................................................................................................3-8 3.8.2. Configuring for Transponder or Responder Operation .................................................................3-8 3.8.3. Specification Configuration .......................................................................................................3-9

3.8.3.1 Receive Frequency ............................................................................................................3-9 3.8.3.2 Receive Lockout Time ........................................................................................................3-9 3.8.3.3 Transponder Turn-Around-TIME (TAT) ...............................................................................3-9 3.8.3.4 Responder Key Polarity (-) .................................................................................................3-9 3.8.3.5 Responder Turn-Around-TIME (TAT) ..................................................................................3-9 3.8.3.6 Reply Pulse Length ............................................................................................................3-9 3.8.3.7 Reply Frequency................................................................................................................3-9 3.8.3.8 Reduced Source Level ..................................................................................................... 3-10

4. SPARE PARTS ....................................................................................................................................4-1

NOTE: See Model 4324C Battery Charger Manual for charging instructions.

TABLE OF CONTENTS

iv

SECTION PAGE APPENDIX A: Care of Cables ....................................................................................................... A-1 APPENDIX B: Warranty/Service ................................................................................................... B-1 APPENDIX C: Beacon/Trackman Setup Guide ............................................................................. C-1

FIGURES Figure 1 Mechanical Outline 4377A ..................................................................................... 1-5 Figure 2 Mechanical Outline 4378A ..................................................................................... 1-6

TABLE Table 1 Multibeacon Options .............................................................................................. 1-4 Table 2 Transmit/Interrogation Frequencies ....................................................................... 1-4

TABLE OF CONTENTS

v

A "NOTE" message is used to emphasize a certain operation or condition. NOTE: "___READ THIS MANUAL!____________________________________________." A "CAUTION" message is noted where an operational hazard to the equipment could exist.

C A U T I O N

A "WARNING" is used where an injurious or life threatening condition to an operator, installer or troubleshooter could occur.

* * * * * * * * * * * * * * W A R N I N G * * * * * * * * * * * * * *




All Rights Reserved

SECTION ONE

INTRODUCTION

INTRODUCTION 4377A OR 4378A

1-1

1. INTRODUCTION

The Model 4377A and 4378A is an integrated Depth Telemetry Multibeacon (Transponder or Responder). The 4377A and 4378A uses a single pressure housing combining the Multibeacon electronics and Telemetry electronics. The 4377A uses an integral acoustic projector on one end cap whereas the 4378A has a connector on the end cap (instead of the integral acoustic projector) to mate to a remote acoustic projector. This 4377A unit is basically a 4370A with a long pressure case to house a Telemetry module. The 4378A is basically a 4376A with a long pressure case to house a Telemetry module. This unit will allow the placement of the Remote Transducer in an optimum position acoustically and mounting of the 4378A can be optimum for mechanical considerations. The 4377A and 4378A are available with a pressure case depth rating of 1000 meters (2.75" diameter) or 3000 meters (3.00" diameter). Variations of each model are available as follows... 4377A (with integral hemispherical projector) 1000m or 3000m 4377A-D (with integral directional projector) 1000m or 3000m 4378A with remote 4325A (hemispherical projector) 1000m or 3000m 4378A-D with remote 4335A (directional projector) 1000m or 3000m NOTE: The pressure sensor rating will be the determining factor for the maximum depth

allowed for the unit. See Table 1-1 and specifications in section 2. NOTE: The Model 4377A and 4378A can be configured for either the Trackpoint 2 or 3

Systems or the BATS. The mechanical dimensions are shown in Figures 1-1 and 1-2. The 4377A and 4378A are factory configured for both transponder and responder operation. When used as a Transponder, the 4377A and 4378A will receive a signal between 16 & 22.5 kHz from an interrogation source (refer to Table 2). Once detected, the first reply (Navigation) will be sent with a frequency between 17-30 kHz (or 12-16 kHz for a 4370A-D or 4376A-D Low Frequency Model). It is followed by a second reply (Telemetry) with a frequency between 17 to 29 kHz ( 12-16 kHz for LF versions) (1 kHz less than the first reply). (These frequencies will vary depending on whether the unit is configured for Trackpoint 2 or 3 or BATS.) The second reply will be delayed from the first by the Telemetry Module. The 4377A and 4378A, when used as a Responder will receive either a (-) key pulse from an umbilical wire attached to the unit. The unit will reply in the same manner as the Transponder configuration (above paragraph). When operating as a responder the unit will default to a transponder if not keyed. The Telemetry Module is expressly designed for the monitoring of sea water depth using the pressure method. This method uses the following conversion factor based on normal sea water: 1 meter depth = 1.458 psi = 10.05 kPa NOTE: Fresh water is less dense than sea water by about 3.2%. If using this unit in fresh

water, the depth as observed on the monitoring system may read 3.2% lower than the actual depth of telemetry module.


1-2

The Telemetry module consists of a pressure sensor and associated electronics. This module produces a delayed timing pulse for the Multibeacon electronics. The delayed pulse causes a secondary reply from the Multibeacon.

The delay time is 100 milliseconds with no pressure. (ZERO depth)

The delay time is 1000 milliseconds with full pressure.

(Full Scale SPAN = 900 milliseconds) NOTE: F1 is the positioning (Navigation) reply and F2 is the Telemetry reply. Various pressure gauge combinations configure the Telemetry module for maximum resolution with minimum drift for the following depth/pressure ranges:

DEPTH RATING (meters)

DEPTH IN psi 1

PRESSURE GAUGE (psi)

% OF GAUGE USED

MAX BCN DEPTH RATING

(meters)

60 87.5 100 87.5% 90

150 218.7 250 87.5% 225

300 437.4 500 87.5% 450

600 874.5 1000 87.5% 900

1000 1458.0 1500 97.2% 1000

1500 2187.0 2500 87.5% 2250 2

3000 4374.0 5000 87.5% 3000 2

TABLE 1-1

It is important to assure that the monitoring instrumentation (ORE

Offshore TRACKPOINT 3 or BATS) is properly set for the pressure

gauge/scale of this particular Telemetry unit. See Appendix C.

1 Based on 1 meter = 1.458 psi 2 3km rated beacon


1-3

The 4377A or 4378A replies with a power of 150 Watts providing a hemispherical beam pattern with a nominal source level of 190 dB (ref 1 µPa @ 1 M). The 4370A-D also replies with a power of 150 watts, but has a directional transducer providing a beam pattern of approximately ±30° from the vertical with a nominal source level of 196 dB (ref 1 µPa @ 1 M). Either beam pattern will be altered once the unit is mounted to a structure. Sea trials should be performed to determine the best mounting position for the particular application. The unit can be mounted in any position and at any angle, but there should be a clear path between the transducer and the shipboard tracking system hydrophone. All units contain a rechargeable Nicad battery. Lifetime is dependent on the use and reply rate of the unit. Trackpoint 2 or Trackpoint 3 compatible units will have a longer battery life than the BATS as the pulse width of the reply is shorter. (1.5ms VS 10ms). In the transponder configuration a receiver draws on the battery. This receiver is continuously powered on so that it can be interrogated acoustically if the responder key is not present. For example, if tracking an ROV and the umbilical is severed, the responder key will be disabled. The unit could then be interrogated acoustically to resume tracking. In both the transponder and responder modes, power is required for each reply, and more frequent replies accelerate battery drain and shorten operational life. The Telemetry module is activated once the unit is interrogated. If the unit is not interrogated for approximately 30 seconds the Telemetry module will go to a low power state.

MODEL DESCRIPTION

4377A-SL 1000m Omni Projector (1 A-Hr Battery) 13” long

4377A-ML 1000m Omni Projector (2 A-Hr Battery) 15.5” long

4377A-LL 1000m Omni Projector (3 A-Hr Battery) 21” long

4377A-D-SL 1000m Directional Projector (1 A-Hr Battery) 14.5” long

4377A-D-ML 1000m Directional Projector (2 A-Hr Battery) 17” long

4377A-D-LL 1000m Directional Projector (3 A-Hr Battery) 22.5” long

4378A-SL 1000m Omni Projector (1 A-Hr Battery) 11.5” long

4378A-ML 1000m Omni Projector (2 A-Hr Battery) 14” long

4378A-LL 1000m Omni Projector (3 A-Hr Battery) 19.5” long

4378A-D-SL 1000m Directional Projector (1 A-Hr Battery) 11.5” long

4378A-D-ML 1000m Directional Projector (2 A-Hr Battery) 14” long

4378A-D-LL 1000m Directional Projector (3 A-Hr Battery) 19.5” long

437XA-D-XX All directional units are available in 3000m depth ratings

FIGURE 1-1


1-4

1.1. LIFETIME CALCULATIONS

I. BATTERY: Each Nickel Cadmium (or NiCad) battery, when fully charged and in

fresh condition, will contain about 9.2 Watt-Hours ((.85 A-Hr * (.9v/cell x 12 cells)) of energy. Two Batteries contain 18.4 Watt-Hours energy. The C-Cell pack has about 3-A-Hrs of capacity or 32.4 Watt-Hours of energy.

II. TRANSMIT: [BATS Beacon] Each reply uses (150 W maximum into

hemispherical acoustic projector for nominal 10ms) 1.5 Watt-seconds of energy or 0.00042 Watt-hours of energy. For both the navigation and telemetry replies the use is 3 W-Sec or 0.00083 Watt-Hours of energy total per reply.

II. TRANSMIT: [TP2 or TP3 Beacon] Each reply uses (150 W maximum into

hemispherical acoustic projector for nominal 1.5ms) 0.225 Watt-seconds of energy or 0.000062 Watt-hours of energy. For both the navigation and telemetry replies the use is 0.751 W-Sec or 0.000125 Watt-Hours of energy total per reply.

III. RECEIVER: The quiescent (standby) power for the transponder receiver is

.00125 Watts. NOTE: This receiver is powered even when the unit is in responder mode.

IV. TELEMETRY: The quiescent (standby) power for the Telemetry Module is 0.002

Watts. Telemetry Pulsed Drain (Pressure Transducer & Processor) = 0.00325 W-Sec per reply.

E Q U A T I O N S

B = Battery Capacity (W-Hr) R = Receiver Quiescent Current Drain (W) T1 = Telemetry Quiescent Drain (W) T2 = Telemetry Pulsed Drain (W-Sec) P = # of seconds between replies H = # of hours of operation X = Transmit Energy (W-Sec) Example: BATS Telemetry Beacon with single battery (Short Life (SL)) in Transponder or Responder mode H = B / ( R + T1 + X/P + T2/P ) H = 9.2 / ( 0.00125 W + 0.002 W + (3 W-sec / 2 sec) + (.00325 W-sec / 2 sec) H = 3.7 Hours NOTE: The retention life of the battery is about 14 days @ 10°C. A discharged battery should be fully charged after a period of 14 hours with the current as supplied by the Model 4324C-V1636 Battery Charger. Refer to the 4324C-V1636 Charger manual for proper operation.


1-5

OPTIONS

MULTIBEACON Std -DP Std -D 4325A 4325B 4335A -G

CONFIGURATIONS Pressure Cases Transducers Xmit Frequencies Pressure Gauges * = Special Order

Depth Rating Integral Head Remote Head LF MF (Full Scale Depth in Meters)

BASE MODEL - Xducer 1000 m 3000m Omni Dir Omni Omni Dir kHz kHz 60m 150m 300m 600m 1km 1.5km 3km

4377A Omni n/a n/a n/a n/a n/a n/a 17-30 n/a n/a

4377A-D Directional n/a n/a n/a n/a 13,14 24-27 *

4377A-R Omni n/a n/a n/a n/a n/a n/a 22-30 n/a n/a n/a n/a n/a n/a n/a

4377A-D-R Directional n/a n/a n/a n/a 13,14 24-27 n/a n/a n/a n/a n/a n/a n/a

4378A Omni n/a n/a n/a n/a n/a 22-30 n/a n/a

4378A-D Directional n/a n/a n/a n/a 13,14 24-27 *

4378A-R Omni n/a n/a n/a n/a n/a 22-30 n/a n/a n/a n/a n/a n/a n/a

4378A-D-R Directional n/a n/a n/a n/a 13,14 24-27 n/a n/a n/a n/a n/a n/a n/a

TABLE 1-1 - MULTIBEACON OPTIONS

Std dual Freq. Rcvr Coil Installed. TRANSMIT FREQUENCIES (kHz)

Select either Freq. as shown. 22 23 24 25 26 27 28 29 30 13 14 24 25 26 27 28

Omni Transducers Directional Transducers

INTERROGATION 18 17 17 17 17 17 19 17 17 18 18 20.5 20.5 20.5 20.5 20.5

FREQUENCIES (kHz) 20 19 19 19 19 19 21 19 19 20 20 22.5 22.5 22.5 22.5 22.5

TABLE 1-2 - TP2 or TP3 TRANSMIT / INTERROGATION FREQUENCIES


1-6

Omni Transducers Directional Transducers

TRANSMIT FREQUENCIES (kHz)

BATS: 1730 kHz Band Spread Spectrum

BATS: 12 15 kHz LF or 24-28kHz MF Spread Spectrum

INTERROGATION FREQUENCIES (kHz)

15 – 21kHz CW 11-15 kHz Low Freq

20.5/ 22.5 kHz Med Freq

TABLE 1-2 - BATS TRANSMIT / INTERROGATION FREQUENCIES

SPREAD SPECTRUM CODES; MULTIPLE - FREQUENCY SHIFT KEYING (M-FSK)

CODE FREQUENCY BAND (kHz) PULSE WIDTH (ms) NOTES

ORE-01 22.936 – 27.174 10.13 Omni

ORE-02 27.174 – 22.936 10.13 Omni

ORE-03 17.007 – 21.008 11.17 Omni

ORE-04 21.008 – 17.007 11.17 Omni

ORE-05 24.038 – 28.090 9.88 Directional

ORE-06 28.090 – 24.038 9.88 Directional

ORE-07 17.007 – 21.008 16.76 Directional

TABLE 1-3 - MFSK SPREAD SPECTRUM CODES


1-7

PRN CODE FREQUENCY (kHz) CHIP LENGTH (us) OCTAL CODE

1 22.727 352.00 045

2 24.510 326.40 051

3 26.042 345.60 057

4 27.473 327.60 067

5 24.510 326.40 073

6 26.042 345.60 075

7 25.773 349.20 045

8 27.174 331.20 051

9 28.735 348.00 057

10 25.773 349.20 073

11 27.174 331.20 075

12 22.727 528.00 045

13 24.510 489.60 051

14 26.042 494.20 057

15 27.473 509.60 067

16 25.773 504.40 045

17 27.174 515.20 051

18 28.735 522.00 057

19 22.727 352.00 075

20 27.473 327.60 045

21 28.735 348.00 075

TABEL 1-4 – PRN REPLY FREQUENECY CHANNEL CODES


1-8

CW CHANNEL CODE FREQUENCY (kHz) PULSE WIDTH (ms)

1 16.0 6

2 17.0 6

3 18.0 6

4 19.0 6

5 20.5 6

6 21.5 6

7 22.5 6

TABLE 1-5 – CW INTERROGATE FREQUENCY CHANNEL CODES

REFER TO APPENDIX “C” FOR SETUP WITH THE BATS/TRACKMAN INTERFACE.

INTRODUCTION - 4377A / 4378A

1-9

INTRODUCTION - 4377A / 4378A

1-10

SECTION TWO

SPECIFICATIONS

SPECIFICATIONS 4377A / 4378A

2-1

2. SPECIFICATIONS

2.1. MECHANICAL

Size: 4377A (NOT including width of connector) Size: 4378A (NOT including Remote Transducer or width of connector)

Model Dia Length3 Wt - Water4 Wt - Air

4377A-SL 1000m depth 2.75” (7.0cm) 13” (33cm) 2.2 lb (1.0 kg) 5 lb (2.3kg)

4377A-ML 1000m depth 2.75” (7.0cm) 15.5” (39.4cm) 4.5 lb (2.04kg) 9.3 lb (4.2 kg)

4377A-LL 1000m depth 2.75” (7.0cm) 21” (53.3cm) 3.5 lb (1.6 kg) 7.8 lb (3.54kg)

4377A-D-SL 1000m depth 2.75” (7.0cm) 14.5” (36.8cm)

4377A-D-ML 1000m depth 2.75” (7.0cm) 17” (43.2cm)

4377A-D-LL 1000m depth 2.75” (7.0cm) 22.5” (57.2cm)

4377A-D-LL 3000m depth 3.00” (7.6cm) 22.8” (57.9cm) 6.0 lb (2.7 kg) 11 lb (5kg)

4377A-D-LF-LL 1000m 2.75” (7.0cm) 23.8” (60.4cm) 4.8 lb (2.2 kg) 9.8 lb (4.4kg)

4377A-D-LF-LL-3000m 3.00” (7.6cm) 23.8” (60.4cm) 6.0 lb (2.7kg) 11.7 lb (5.3kg)

4378A-SL 1000m depth 2.75” (7.0cm) 11.5” (29.2cm) 2.2 lb (1.0 kg) 5 lb (2.3kg)

4378A-ML 1000m depth 2.75” (7.0cm) 14” (35.6cm) 4.5 lb (2.04kg) 9.3 lb (4.2 kg)

4378A-LL 1000m depth 2.75” (7.0cm) 19.5” (49.5cm) 3.5 lb (1.6 kg) 7.8 lb (3.54kg)

4378A-D-SL 1000m depth 2.75” (7.0cm) 11.5” (29.2cm)

4378A-D-ML 1000m depth 2.75” (7.0cm) 14” (35.6cm)

4378A-D-LL 1000m depth 2.75” (7.0cm) 19.5” (49.5cm)

Material: 6061 Aluminum hard coat anodized

Closure: Teflon closure strip (P/N 102748)

Interface

Connector: (1) 4 pin Crouse Hinds E.O. universal type

Mounting: Side mount on end cap (see figure 1-1)

Transducer

Connector: (4378A) (1) 2 pin Crouse Hinds E.O female type

Mounting: (4378A) On face of end cap (see figure 1-2)

3 Does not include transducer on the 4378A’s. 4 Estimated


2-2

2.2. ENVIRONMENTAL

Temperature: 0°C to 30°C (within specs)

-10°C to 65°C (operating in air)

-20°C to 75°C (storage)

Pressure depth: 1000 meters std. (See section 2.8 Telemetry)

3000 meters opt. (See section 2.8 Telemetry)

2.3. POWER (BOTH TELEMETRY MODULE & MULTIBEACON MODULE)

Battery Type: Nicad, Rechargeable,

15V @ 1.1A-hr SL; 2 batteries = 2.1 A-hr ML; 3.0 A-hrs LL

Charger: ORE Offshore Model 4324C –V1636 (16 Hr)

Operational Life: Calculate using equations in Section 1.1

2.4. TRANSMITTER

Power: 150 Watts nominal omni transducers/ 150W directional

Source Level: omni units: 190 dB min (re 1 µPa @ 1 m)

-"D" units: 196 dB min (re 1 µPa @ 1 m)

Pulse Width: TP2/3: 1.3 ms (each reply); BATS: 10ms nom.

Reply Frequency: TP2/3: 22 kHz to 30 kHz +100 Hz, in 1 kHz incr, CW

24, 25, 26, 27 kHz +100 Hz "-D"

BATS: 17-30kHz band

M-FSK Codes ORE-01 ORE-07or PRN/BPSK

2.5. TRANSDUCER

Mounting: End cap 4377A or 4377A-D

optional model 4325A/B or 4335A remote transducer for 4378A or 4378A-D

Free Beam Pattern: Hemispherical

+ 30° in the vertical beam for "-D" models

Tuning: Factory preset for reply frequencies

2.6. RESPONDER OPERATION

Logic Input Key: Neg edge triggered key. Minimum level + 2 volts, input protected.

Responder Turn

Around Delay: 1 millisecond


2-3

Responder

Lockout Time: 900 milliseconds

Responder/Transponder

Reversion Lockout: 25 seconds

2.7. TRANSPONDER OPERATION

Receive Frequency: 15 kHz to 25 kHz factory preset, (See Table 1-2)

Transponder Turn-

Around Time: 100 milliseconds

Multipath Lockout: 1.8 seconds (nominally) factory preset

Input Sensitivity: 100 microvolts RMS

2.8. TELEMETRY MODULE

End cap Material: Delrin

Closure: Teflon locking strip

Maximum Depth: Range Span Max Depth 5

60 meters 90 meters

150 meters 225 meters




1500 meters (3km Bcn) 2250 meters

3000 meters (3km Bcn) 3000 meters

Pressure Gauge:

Type: Bonded strain gauge

Resistance: 950 Ohms > 1kpsi gauges; 330 Ohms < 1kpsi

Excitation: 15 VDC max

Output: Triggers Telemetry Burst

Zero: 100 ± 9 milliseconds

Span: 900 ± 1.25% of reading

Linearity: ± 0.25% of full scale span for best fit straight line

Wire Color Code: Red....................+ Excitation Black................. - Excitation Green.................+ Signal White.................- Signal Accuracy: Within 0.25% Of Full Scale (Linearity, Hysteresis, &

Repeatability Combined)

5 Maximum depth is limited by either the pressure gauge or the pressure housing, whichever is less.


2-4

Zero Balance: Within 0.8 mv/V Zero Drift Vs Temperature: Within 1% Full Scale Per 100°F Span Vs Temperature: Within 2% Full Scale Per 100°F Maximum Overload No Damage 2x Full Scale or 11,000 psi (Whichever

is less)


2-5

SECTION THREE

OPERATION AND CONFIGURATION

OPERATION & CONFIGURATION - 4377A/4378A

3-1

3. OPERATION AND CONFIGURATION

This section contains the operation and configuration information necessary to use the 4377A or 4378A. Prior to deployment check: 1. Battery Charge

Be sure that the batteries are charged. See sections 1.1 and 3.1.4.

2. Transponder/Responder Configuration Be sure that the unit is configured for the type of operation and frequency that you intend to use. Check the label on the side of the pressure canister and reconfigure, if necessary, as described in section 3.4.

3. Specifications Configuration Check and note the specifications on the pressure canister label. If changes are

required, refer to section 3.4. 4. Specified depth range Note the depth range on the pressure canister label. Be sure to configure your shipboard

monitoring equipment (i.e. ORE Offshore, Trackpoint 3 or BATS) for that range. Remember that ZERO = 100 milliseconds delay and that full SPAN = 900 milliseconds for a total full SPAN delay time of 1000 milliseconds.

5. Overall wiring Check that the overall system is wired correctly. See below. Wiring includes plugs shown

on pressure canister label. Check that they are well lubricated with either o-ring lube or Vaseline grease prior to insertion. Check that all connectors are plugged with cables or dummy plugs.


3-2

Connector Pin-Outs

Connector pin-outs follow the number pattern as shown:

1. Common 2. +18 to +24 Charge/Remote Power and/or Responder Key. 3. Battery 4. +V NOTE: Inserting shorting plug to turn unit on connects (3) Battery to (4) +V.

3.1. OPERATION AND DEPLOYMENT

C A U T I O N

PRIOR TO DEPLOYMENT CAUTION NOTICES Do NOT poke any objects down the center hole of the telemetry end cap!!!!! There is a sensitive pressure sensor on the other side of that hole. The maximum depth of the telemetry module is listed on the pressure canister label. Do NOT exceed that pressure; either the pressure sensor will become damaged due to overload, or the canister will implode destroying the unit.

The 4377A or 4378A is activated by inserting a shorting plug in the connector as indicated on the label on the pressure canister. A non-shorting dummy sleeve must be attached to the remaining plug. The dummy sleeve is necessary to insulate and protect the contacts from the electrical and corrosive damage caused by seawater. Generously lubricate the dummy plug and shorting plug to eliminate any seawater egress. (Do not use silicone-based lubricants as any silicone on a transducer surface will greatly reduce the acoustical performance of this unit.) Use the o-ring lubricant provided with the unit.


3-3

C A U T I O N Do not use Silicone based grease. Should any become displaced and rubbed onto the transducer surface, reduced acoustic source level will result.

Check that the transducer is clean from all oils or grease. If cleaning is required, wash with soap or detergent.

Operate the unit in air prior to deployment. In the responder mode, the transducer can be felt to "click" each time it is triggered. If used as a transponder, the unit can be checked with an oscillator and oscilloscope and small speaker. Note that the Multibeacon will reply twice for each ping, interrogation, or responder key. At ZERO pressure the replies will be very close to each other (about 100 milliseconds apart).

3.2. TRANSPONDER CHECK

Connect the oscilloscope to a wire wrapped around the 4377A projector transducer or the 4378A remote transducer. Set the oscillator to the proper interrogation frequency and momentarily connect the speaker to produce an interrogation. Hold the speaker close to the projector transducer. If the transponder replies, the electrical reply signal will be seen as pick-up on the wire wrapped about the transducer on the 4377A, 4325A/B or 4335A.

3.3. MOUNTING

Pressure canisters are made from 6061T6 hardcoat anodized aluminum. Long term mounting methods should assure that the aluminum canisters are not in direct mechanical contact with dissimilar metals. Use tape or sleeving to isolate the canisters, if necessary. These canisters can be mounted in any direction and clamped to a nearby structure, but care should be ex-ercised to mount the projector transducer as free as possible with a direct acoustic path to the receiving apparatus when in operation. Mounting of any transducer can change the beam characteristics of that transducer. It is best to perform a shallow water test to assure proper operation prior to final deployment. When mounting the Multibeacon, be sure not to bend the connectors. Bends must be accommodated by the cables. Bending connectors could lift a connector sealing seat and cause a leak, as well as cause damage to the connector itself. See the appendix in the rear of the manual for "Care of Cables".


3-4

3.4. EXTERNAL POWER SOURCES

The 4377A or 4378A can be operated with unrestricted battery life if connected to a current limited 18-24 VDC source capable of about 120mA. When so connected, the NiCad battery will be kept in a constant state of charge. See section 3.0 for proper connections. These connections are also shown on the pressure canister label. The connections are between the COMMON line and the +18 to 24 VDC line. The ORE Offshore Model 4324C-V1636 Battery Charger can serve as a power source for these applications where an umbilical is available. A power source that can momentarily be switched to ground for 1.0 millisecond or less can also serve as a key source for remote responder operation. The 4324C-V1636 output can be momentarily switched to ground to effect this. Pin 2 of the external connector performs two functions, responder key-in or battery charging. When deployed and operating in responder mode a TTL level pulse triggers the unit. When the unit is not in use (turned off), the Model 4324C-V1636 Charger restores battery life using the same conductor. NOTE: The external supply should be current limited to about 1/10 of the batteries capacity. For a single pack the output should be limited to about 150mA. Insert a resistor in series with supply to reduce the continuous charging current to about 150mA. For 2 battery pack units limit to 300mA. Resistor in series calculated by… Power dissipated by Rs = …… 2 Rs = (supply voltage – 15.6) Power = (supply voltage – 10.8)

.15A (Rs ) X Rs OR… Resistor in series calculated by… Power dissipated by Rs = …… 2 Rs = (supply voltage – 15.6) Power = (supply voltage – 10.8)

.30A (Rs ) X Rs


3-5

3.5. BATTERY CHARGING

The 4377A or 4378A batteries can be charged to capacity in 16 hours using the 4324C-V1636 Battery Charger. Other power sources providing 140 to 180mA can also be used. For Battery Charger Instructions, see the 4324C-V1636 manual.

* * * * * * * * * * * * * * W A R N I N G * * * * * * * * * * * * * * NICAD CELLS MAY VENT WHEN BEING CHARGED. WHENEVER CHARGING,

REMOVE THE TEFLON CLOSURE STRIP. IF ANY VENTING SHOULD OCCUR, THE END CAP WILL PUSH PACK ALLOWING THE VENTING TO OCCUR HARMLESSLY. BE SURE TO REINSTALL THE TEFLON CLOSURE STRIP PRIOR TO DEPLOYING.

One factor that affects Nicad battery life is known as the "memory effect". The "memory effect" is caused by repeated shallow discharges (recharging the Nicads before they are discharged). The result is that the battery fails to provide the rated energy and the expected life is shortened. It is recommended that occasionally the battery be discharged to 10.0 volts (approximately 0.9V/CELL) with a load resistor (a 220 ohm 2 Watt resistor should discharge the cells in about 10 hours, monitor the voltage with a voltmeter to be sure that the battery doesn't discharge below the 10.0V level. If this occurs, damage to the cells may result). Then a continuous 18 hour charge will restore batteries to full storage capacity.

Spare or replacement battery packs are available from Offshore Division, Accusonic Technologies, Inc. if necessary. A properly maintained Nicad battery will provide several hundred charge/discharge cycles before replacement is necessary (P/N: 2600AL0105).

C A U T I O N

DO NOT ALLOW THE BATTERY PACK TO BECOME COMPLETELY DISCHARGED TO ZERO. THIS MAY CAUSE A REVERSE POTENTIAL IN ONE OF THE CELLS OF THE BATTERY PACK AND CAUSE THE BATTERY TO OPEN CIRCUIT, WHEREBY

IT WILL NOT HOLD OR DELIVER ANY CHARGE.


3-6

3.6. DISASSEMBLY/REASSEMBLY

3.6.1. DISASSEMBLY/REASSEMBLY

Although the 4377A or 4378A should not need to be disassembled for normal operation, occasional servicing may be required. The following procedure should be used when servicing or reconfiguring this unit. A. Deactivate the unit by removing the shorting plug. To disassemble the integrated Telemetry Multibeacons, only the Transducer end has to

be removed to gain access to the battery and PCB’s. remove the Transducer end cap first and then remove the Electronics section.

B. Lay the 4377A or 4378A on a horizontal surface. Have the Transducer end towards you.

Butt the Multibeacon end against a wall or heavy object to apply force on the Transducer end cap to remove locking strip.

C. With one hand, press in the on the Transducer end cap, and with the other hand remove

the locking closure strip. Save this strip for reassembly. D. If the 4377A or 4378A has just been removed from the water, there is a good chance

that the unit is cool and that a partial vacuum exists inside. Allow the unit to warm to room temperature to facilitate electronics removal. Turn the unit upside down onto the Transducer end to allow water in the closure area to drain down. Wipe up excess water as it drains from the joint.

E. Lay the unit down again. Grasp the unit with two hands with the Transducer end towards

you. With a slight twisting and rocking action, remove the electronics from the pressure canister. Part way through the removal, the o-ring will catch in the groove previously occupied by the closure strip. A slight twisting and rocking action while pulling will free the o-ring. Slide the Transducer end cap out far enough to unplug the two interconnect cables going to the Multibeacon section. Lay the unit on a horizontal surface and finish removal of the Transducer end cap and battery from the pressure canister. Dry any remaining wet parts. Turn the unit around and remove the Multibeacon end cap in the same manner.

F. Reconfigure or program the unit per instructions in section 3.4. of this manual. If service

is required, have a qualified technician refer to the schematics and section 4.0 of this manual.

G. The battery pack can be removed, serviced, or replaced by unplugging the unit from the

electronics assembly.

C A U T I O N

Do not attempt to run the electronics assembly from a charger without the battery pack installed.


3-7

H. Check and clean all o-ring mating surfaces (see section 3.2.2). I. Reinstall the electronics in the reverse order of disassembly. J. Note any configuration changes on the label on the outside of the pressure canister with

an indelible marker (waterproof marker).

3.6.2. CARE OF THE O-RING SEAL

The o-ring seal is designed to keep the water at high ambient pressures from the internal electronics. The 4377A or 4378A is designed to operate at pressures up to 1500 psi (4500 psi optional). Any hair-line cracks or nicks in either the o-ring or the surfaces that it seals against can flood and destroy the transponder. Each 4377A or 4378A unit is factory tested for leaks and is certified to meet pressure depths at its full rating. O-Ring Removal - Remove the o-ring from its groove with the end of a soft, blunt object, such as, the Teflon closure strip. DO NOT USE HARD OR POINTED OBJECTS AS THEY MAY DAMAGE EITHER THE GROOVE OR THE O-RING. Slide the o-ring off the unit taking care not to damage the ring or the circuit board edges. Wipe the o-ring clean with a soft cloth and inspect both the inside and outside for any nicks or scratches. Bending the o-ring while inspecting it will make any nicks or scratches more visible. Set the o-ring aside in a clean area. Pressure Canister - Use a clean cloth or swab and clean the inside mating surface of the pressure canister. Under a strong light, examine that the surface is free from any scratches or dirt. End Cap Groove - Use a clean cloth or swab and clean the o-ring groove. Inspect the surface for any nicks or dirt. O-Ring Installation - Coat o-ring, o-ring groove and pressure canister surface with Parker-O-

Lube or Vaseline Petroleum Jelly. DO NOT USE SILICONE BASED GREASE. ANY SILICONE RUBBED ONTO THE TRANSDUCER WILL RESULT IN REDUCED SOURCE LEVEL. Carefully install the o-ring over the electronics boards so as not to scratch the o-ring, and install the o-ring into its groove on the end cap. Electronics Installation - Install the Multibeacon electronics assembly into the pressure case after reconnecting the battery. Install the battery and boards into the pressure canister. With a rocking motion, work the end cap and o-ring down past the closure strip groove and then down onto its mating surface. Press on the end cap and install the Teflon closure strip. Repeat for the Telemetry end cap making sure the interconnect wiring is mated correctly. The o-ring used in the 4377A or 4378A is manufactured from Nitrile or Buna N often referred to

under the trade names of Chemigum (Goodyear Tire & Rubber Co.), Paracril (Uniroyal),

Hycar (Goodrich Chemical Co.), Krynac (Polysar, Ltd.) and Ny Syn (Copolymer Rubber & Chem. Corp.). The o-ring is a size 2-140 with the following dimensions:


3-8

Inside Diameter 2.237 + .020" (56.82 + .500mm) Cross Section Diameter .103 + .003" (2.62 + .08mm)

O-ring replacements (P/N 500834) may be purchased directly from Offshore Division, Accusonic Technologies, Inc.

3.7. PRESSURE GAUGE

The pressure gauge used in the 4377A and 4378A is a bonded strain gauge installed expressly for the pressure range which was ordered for the 4377A or 4378A. The gauge is selected to produce the maximum resolution and minimum drift for the range specified on the label. This gauge is installed under a cover plate screwed to the top of the end cap.

C A U T I O N

The face of the pressure gauge is deflected under pressure by a microscopic amount. Any deflections caused by scrapes, nicks etc. will throw this gauge out of calibration. Do

not damage or handle the front surface of the gauge!!!

Gauge replacement should not be necessary. In the event a replacement is required return to

ORE Offshore for replacement.

3.8. INTERNAL CONFIGURATIONS

Internal configurations determine: I. The mode of operation (i.e. Transponder, Responder or both) II. The operating specifications (receive and reply frequencies, turn around times, etc.)

3.8.1. OPERATIONAL CONFIGURATION

The 4370A or 4376A supplied from the factory is a Transponder/Responder. The configuration is noted on the pressure canister label. This section describes the various modes of operation of the unit. Modifications of the various parameters described below are not possible in the field. If changes are required, the Transponder/Responder should be returned to ORE Offshore for modification.

3.8.2. CONFIGURING FOR TRANSPONDER OR RESPONDER OPERATION

This Multibeacon is configured for operation as both a transponder and as a responder.

No changes or modifications are required to switch operational mode.


3-9

3.8.3. SPECIFICATION CONFIGURATION

The following specifications are configured internally.

3.8.3.1 RECEIVE FREQUENCY

The Transponder receive frequency is set within the frequency band of 10 kHz for Low

Frequency and 15 to 25 kHz for medium frequency. Refer to Table 1-2 for the default interrogation frequencies for the specified transmit frequency.

3.8.3.2 RECEIVE LOCKOUT TIME

The receive lockout time is factory preset at approximately 1.9 seconds. This period of

time inhibits interrogation reverberation from retriggering the transponder causing multiple replies and excessive battery drain. Only under the most extreme multipath conditions will the lockout period need extending. The lockout period has been chosen to allow a maximum Transponder interrogation rate of about 2 seconds.

3.8.3.3 TRANSPONDER TURN-AROUND-TIME (TAT)

Transponder TAT is factory adjusted to produce a reply 15 milliseconds after the leading

edge of an interrogation pulse is applied to the receiver's input. All ORE Offshore equipment is designed to work with transponders having this delay.

A potential conflict exists in applications requiring two transponders on the same

interrogate frequency at the same distance from the interrogator. The conflict arises when the two simultaneous replies arrive at the receiver together. ORE equipment that receives replies from two transponders is also equipped to interrogate two transponders at different frequencies. This conflict should be resolved using the two separate receive frequencies of the beacon. (Refer to Table 1-2 for the various receive frequencies.)

3.8.3.4 RESPONDER KEY POLARITY (-)

The responder detection circuit is set to reply to the falling edge of a negative pulse (-).

3.8.3.5 RESPONDER TURN-AROUND-TIME (TAT)

Responder TAT is factory set to 1.0 millisecond.

3.8.3.6 REPLY PULSE LENGTH

The reply pulse length of the transponder or responder is 10 milliseconds. This length is

adequate for applications with ORE equipment.

3.8.3.7 REPLY FREQUENCY


3-10

A reply frequency is determined at time of unit assembly. Each unit has a transmit output transformer and a matching tuning inductor designed for the particular transducer with that unit.

3.8.3.8 REDUCED SOURCE LEVEL

Consult Factory for special firmware to reduce source level.


3-11

SECTION FOUR

SPARE PARTS

SPARE PARTS 4377A/4378A

4-1

4. SPARE PARTS

The following is a list of parts that may need periodic replacement when worn or lost. These parts may be ordered directly through your authorized ORE representative. Part # Description Part # Description 0009622 Locking closure strip 0003284 Nicad battery pack 0007968 Tested 4324C-V1636 Battery Charger 0002922 Pigtail Assembly for charging 4370 series Multibeacons. 0009891 O-ring Lubricant (4 oz) 0.86100 0005936 O-ring # 2-140 0003867 Male dummy plug (51F2M-DO) 0003864 Male shorting plug (51F2M-DS) 0003865 Female dummy plug (51F2F-DO) 0006251 Pigtail connector (4 pin) for responder hook-up and remote turn-

On (51F2U-1) 0006244 Pigtail connector (2 pin) for responder hook-up only (51F2F-1)

0007994 Manual, Operation & Maintenance for the Model 4370A/4376A Multibeacons

APPENDIX A

CARE OF CABLES

CARE OF CABLES - 4377A/4378A

A1

C A U T I O N Whenever underwater connectors are disassembled, or pressure cases opened, water is drawn into the cavity formed by the separating parts. This water, particularly salt water, enters as a fine spray and coats the electrical contacts and other parts inside. It is extremely important to minimize this buildup of moisture and salt, as it causes corrosion and voltage breakdown, particularly on power leads which have voltages present. Therefore a thorough cleaning is required, preferably immediately after opening the parts. It is also helpful to rinse in fresh water and remove excess water from parts prior to opening.

The majority of problems with subsea electronics systems stem from the misuse or abuse of cables.

The 4330 series uses the Crouse Hinds Electro-Oceanic series cables which will provide many years of useful service if properly maintained. Use care in connecting all cables. Make sure all plugs and sockets are clean prior to insertion. A spray contact cleaner along with some pipe cleaners will facilitate cleaning. Plugs should be greased with a

lubricant, such as, Parker-O-Lube or Vaseline Petroleum Jelly. Silicone grease should be avoided around acoustic systems. Any silicone inadvertently place on the projector will greatly reduce its effectiveness, and can not be properly cleaned off. Insertion should be accomplished with as little flexing as possible. Flexing and rough handling of these connectors will reduce their service life.

DO Keep all unused pins and sockets plugged and/or sleeved when not in use. This will keep them free from dirt and damage.

DO Lubricate connectors before mating. Use Parker-O-Lube (supplied with products) or

Vaseline Petroleum Jelly.

DO Rinse cables with fresh water after use and keep them free from dirt and salt.

DO Secure cables with tie wraps or tape so they won't work free.

DO Route cables where they won't get pinched or crushed by deployment or moving machinery.

DO Perodically clean cable contacts with a cleaner/degreaser. Use pipe cleaners for female contacts. Lubricate with clean lubricant after cleaning.

DO Check cables with a VOM or megger periodically for electrical integrity.

DON'T Walk on cables.

DON'T Bend cables near the connectors.

DON'T Use damaged cables with bad or questionable contacts. They will damage their mating half and that can be costly for molded-in connectors.

DON'T Hang things on cables.

DON'T Use cables for towing or pulling.

DON'T Bend the connectors when mating or disconnecting.

DON'T Clean cables with light hydrocarbon solvents (e.g., acetone, lacquer thinner, paint thinner).

APPENDIX B

WARRANTY/CUSTOMER SERVICE

WARRANTY

B1

WARRANTY

Incoming Inspection

If shipment is incomplete or has been visibly damaged in transit, have the transportation agent note the complaint on the freight bill. If damage is not discovered until the carton is opened call the transportation company and request an inspection by the carrier or their agent for concealed damage. This must be done within 15 days. Do not destroy carton or packing until inspected.

Damage Claims

File all claims against CARRIER enclosing proper documentation. In accordance with I.C.C. regulations, it is the responsibility of the CONSIGNEE to file the claim if shipment is made F.O.B. point of origin. Factory responsibility CEASES when carrier accepts the merchandise in good order, and title to the merchandise passes to the consignee.

Warranty

ORE Offshore warrants its products against defects in materials and workmanship for a period of one (1) year from the date of delivery. During this period, on satisfactory proof of such de-fects, any unit which becomes inoperative may be returned to the factory, prepaid, for repair or replacement, at the option of ORE Offshore. If the defect(s) is (are) not the result of improper usage, service, maintenance, or installation and equipment has not been damaged or abused after delivery nor modified by anyone other than an authorized employee or representative ORE Offshore, ORE Offshore, shall repair or replace at the option of ORE Offshore, the part or parts which are defective. No returns will be accepted unless prior authorization has been received from Seller and an ORE Offshore, Return Merchandise Authorization (RMA) Number has been assigned. This warranty applies only to the original purchaser and only if the equipment has been installed and operated in accordance with the published Operation and Maintenance Manual, or in a manner approved by ORE Offshore, or its representatives. No other warranty is express or implied and in no event shall ORE Offshore, be responsible for collateral or consequential damages.

Return Shipment

Store the packing crate and its packing material in a dry place for reshipment or future storage. Make sure when replacing unit that it is kept from shifting inside the box.

Customer Service

Should a problem arise during operation, refer to the relevant sections of this manual to determine possible cause. If necessary, technical assistance will be provided by the nearest ORE Offshore office. ORE Offshore 4 Little Brook Road West Wareham, Massachusetts 02576 USA Phone: (508) 291-0960 Fax: (508) 291-0975 Email: [email protected]

APPENDIX C

BEACON / TRACKMAN SETUP GUIDE

BEACON/TRACKMAN SETUP GUIDE

C1


C2


C3


C4


C5

TABLE OF CONTENTS – 4325A & 4325B

i

SECTION PAGE

1.0 INTRODUCTION ................................................................................................ 1-1 2.0 SPECIFICATIONS ............................................................................................. 2-1 3.0 MOUNTING DETAILS ........................................................................................ 3-1 Appendix A: Diagrams and Schematics ....................................................................... A-1 4325 AE 0020 .................................................. 4325A Remote Transducer Outline 4325 AE 0007 .................................................. 4325B Remote Transducer Outline Appendix B: Warranty/Customer Service ..................................................................... B-1

SECTION ONE

INTRODUCTION

INTRODUCTION - 4325

1-1

1.0 INTRODUCTION The Model 4325 Remote Acoustic Projector is used with the Models 4336, 4376 Multibeacons or the 4338 or 4378 Telemetry Multibeacons. The 4325 Remote Acoustic Projector will NOT connect to Multibeacons containing their own acoustic projectors, i.e. Models 4320, 4330, 4370, 4327 or 4337. The 4325 is tuned individually to match a particular 4336, 4338, 4376, or 4378 Multibeacon and should NOT be interchanged with other Multibeacons. Check if units match by comparing the serial numbers of the 4325 Remote Acoustic Projector with the serial number of the Multibeacon electronics. The serial number of the 4325 is etched into the bottom of the 4325. The 4325A Remote Acoustic Projector should be mounted with the round tear-drop end facing the flow of water for minimum flow turbulence. For all intense and purposes the 4325A and 4325B have a hemispherical beam pattern, with maximum output produced at the sides of the transducer. The sound generated by the transducer, reflecting off adjacent mechanical structures will, however, modify the beam to some extent. The 4325 Remote Acoustic Projector is supplied with an 18" cable extension. Cable length will affect the tuning of the projector, and if extension is necessary, field splices should be limited to 10 feet (3 meters). Other cable lengths can be factory ordered, and tuning of the Multibeacons will be adjusted accordingly to compensate for the additional cable lengths.

SECTION TWO

SPECIFICATIONS

SPECIFICATION - 4325

2-1

2.0 SPECIFICATIONS

Source Level:* 169 dB/Watt (re 1 uPa @ 1 yd) Beam Pattern: Hemispherical Depth Rating: 1000 m Dimensions (4325A): 7-5/8" Long (194 mm) 3-7/8" Wide (98 mm) 2" Tall (51 mm) Dimensions (4325B): 4-1/2" Dia (114 mm) 2-1/2" Tall (64 mm) Weight in Water Approximately 1/2 lb. (.225 kg) Mounting (4325A): Tear Drop Shaped/Flat Surface Mount 2 (1/4-20 NC) bolts Mounting (4325B): Dome Shaped/Flat Surface Mount 2 (1/4-20 NC) bolts *80 W = 19 dB + 169 dB/W = 188 dB (Nominal 187 dB for a standard MultiBeacon)

SECTION THREE

MOUNTING DETAILS

MOUNTING DETAILS - 4325

3-1

3.0 MOUNTING DETAILS The 4325A or 4325B Remote Acoustic Projector can be bolted to any flat surface. See drawing 103761 (A) or 4325AE0007 for actual mounting dimensions.Bolt length should be limited to no more than 3/8" screwed into the 4325. Use of longer bolt lengths will result in separation of the encapsulating compound from the active projector element. Use lockwashers, and DO NOT overtighten these mounting bolts. Overtightening can result in projector distortion and a broken projector element (10 foot-lbs. Maximum).Perform shallow water tests to assure that the mounting position accomodates vehicle attitudes expected to be encountered under normal operations. Change the mounting positions, if necessary. The 4325 Remote Acoustic Projector will work best if mounted away from reflective surfaces within its hemispherical beam.

APPENDIX A

DIAGRAMS AND SCHEMATICS

APPENDIX B

WARRANTY/CUSTOMER SERVICE

WARRANTY

B1

WARRANTY

Incoming Inspection

If shipment is incomplete or has been visibly damaged in transit, have the transportation agent note the complaint on the freight bill. If damage is not discovered until the carton is opened call the transportation company and request an inspection by the carrier or their agent for concealed damage. This must be done within 15 days. Do not destroy carton or packing until inspected.

Damage Claims

File all claims against CARRIER enclosing proper documentation. In accordance with I.C.C. regulations, it is the responsibility of the CONSIGNEE to file the claim if shipment is made F.O.B. point of origin. Factory responsibility CEASES when carrier accepts the merchandise in good order, and title to the merchandise passes to the consignee.

Warranty

ORE Offshore warrants its products against defects in materials and workmanship for a period of one (1) year from the date of delivery. During this period, on satisfactory proof of such defects, any unit which becomes inoperative may be returned to the factory, prepaid, for repair or replacement, at the option of ORE Offshore. If the defect(s) is (are) not the result of improper usage, service, maintenance, or installation and equipment has not been damaged or abused after delivery nor modified by anyone other than an authorized employee or representative ORE Offshore, ORE Offshore, shall repair or replace at the option of ORE Offshore, the part or parts which are defective. No returns will be accepted unless prior authorization has been received from Seller and an ORE Offshore, Return Merchandise Authorization (RMA) Number has been assigned. This warranty applies only to the original purchaser and only if the equipment has been installed and operated in accordance with the published Operation and Maintenance Manual, or in a manner approved by ORE Offshore, or its representatives. No other warranty is express or implied and in no event shall ORE Offshore, be responsible for collateral or consequential damages.

Return Shipment

Store the packing crate and its packing material in a dry place for reshipment or future storage. Make sure when replacing unit that it is kept from shifting inside the box.

Customer Service

Should a problem arise during operation, refer to the relevant sections of this manual to determine possible cause. If necessary, technical assistance will be provided by the nearest ORE Offshore office. ORE Offshore 4 Little Brook Road West Wareham, Massachusetts 02576 USA Phone: (508) 291-0960 Fax: (508) 291-0975 Email: [email protected]

operation and maintenance manual for … · transmit: [tp2 or tp3 beacon] each reply uses (150 w...

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