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User Manual 

For 

Amron International, Inc.  

 

Model 2825R-XX Series 

Two Diver Rack Mount Communicators 

 

S/N ____________________ 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 

1380 Aspen Way, Vista California 92081-8349 

United States of America 

Phone: (760) 208-6500 

Fax (760) 599-3857 

Email

[email protected] 

Web: 

www.amronintl.com 

 
 

This manual and the information contained herein are provided for use as an operation and maintenance 
guide.  No  license  or  rights  to  manufacture,  reproduce,  or  sell  either  the  manual  or  articles  described 
herein are given. Amron International, Inc. reserves the right to change specifications without notice.  

 

Copyright© 2018 Amron International, Inc. 

Summary of Contents for AMCON II 2825R Series

Page 1: ...0 Fax 760 599 3857 Email sales amronintl com Web www amronintl com This manual and the information contained herein are provided for use as an operation and maintenance guide No license or rights to m...

Page 2: ......

Page 3: ...dset 13 4 INSTALLATION AND OPERATION 14 4 1 Operation 14 4 2 AC Power 14 4 3 Modes Of Operation 14 4 4 Volume Controls 2 Wire 16 4 5 Other Diver Controls 2 Wire 16 4 6 Volume Controls 4 Wire 17 4 7 Ot...

Page 4: ...825R XX it is important that the tender read and understand the entire manual including all warnings before first use 1 2 Electrical Specifications Input Impedance Each Input 250 Ohms Frequency Respon...

Page 5: ...will be connected to the communicator using the rear chassis MS connector but the front panel 5 way binding post can be used as required The rear chassis contains the AC power inlet recorder output a...

Page 6: ...es equipped with color coded dual banana plugs that mate directly to AMCOM diver communicators It includes a 6 foot 1 8 meter cord 2 2 2 Model 2460 28 Amron Standard Headset The Model 2460 28 is a lig...

Page 7: ...n talk to the occupant s by using the PUSH TO TALK BUTTON or PUSH TO TALK JACK The Model 3115 also features a headset jack wired in Full Duplex 4 Wire mode that allows an occupant to use our standard...

Page 8: ...is control sets the volume for the divers earphone Rotate this knob clockwise to increase the volume 3 1 5 Diver To Tender Volume This control sets the volume for the tender s earphone and or panel sp...

Page 9: ...g the PANEL SPEAKER This module comes with 25 feet 7 6 meters of cable custom cable lengths are available The tender can also be connected in 2 Wire mode by stacking both the earphone black and microp...

Page 10: ...OFF momentary switch for each diver This control allows the tender to temporarily cut off the microphone of an individual diver It can be used in 2 Wire or Full Duplex 4 Wire modes 3 3 4 Crosstalk The...

Page 11: ...ar of the chassis and sends a standard audio line level signal to another device The audio mixer outputs this signal to the tender and divers AUDIO OUT may be connected to AUDIO IN of another AMCOM ra...

Page 12: ...vers microphone signals This compensates for the HF drop off in the sensitivity of most microphones The TREBLE BOOST feature allows for optimum frequency enhancement and improved intelligible speech f...

Page 13: ...2825R XX SERIES TWO DIVER RACK MOUNT COMMUNICATOR USER MANUAL 282XR UM REV 5 0 10 3 7 Drawing 2 Wire Connections...

Page 14: ...2825R XX SERIES TWO DIVER RACK MOUNT COMMUNICATOR USER MANUAL 282XR UM REV 5 0 11 3 8 Drawing Full Duplex 4 Wire Connections...

Page 15: ...2825R XX SERIES TWO DIVER RACK MOUNT COMMUNICATOR USER MANUAL 282XR UM REV 5 0 12 3 9 Drawing Push To Talk Microphone Connections...

Page 16: ...2825R XX SERIES TWO DIVER RACK MOUNT COMMUNICATOR USER MANUAL 282XR UM REV 5 0 13 3 10 Drawing Operator Connections Headset...

Page 17: ...ower CAUTION ALWAYS exercise extreme caution when operating AC powered equipment especially when outdoors where conditions are damp or wet or when around other equipment Never operate unit without ear...

Page 18: ...g post jack on the communicator as shown in the wiring drawing in section 3 7 If the umbilical uses a banana plug simply insert the plug into the binding post jack Verify that it is firmly and complet...

Page 19: ...y using the Amron Model 2822 28 Remote Walk and Talk Module In this way the PANEL SPEAKER can allow other members of the diving crew to monitor the dive operation or to communicate to the diver by pre...

Page 20: ...cale Tender to use headset Tender and Diver talk to each other during Tender adjusting volume controls as below NOTE The upper row of volume controls set the microphone volume the lower row of volume...

Page 21: ...Push To Talk Jacks Yellow Connection for remote control of the push to talk function plug the hand held microphone yellow banana plug into this jack Operation of the hand held microphone is simple and...

Page 22: ...e diver s voice The Depth Control is used to change the amount of shift in the frequency of the diver s voice The depth control is advanced as the diver s depth increases There is a certain amount of...

Page 23: ...arge the battery If that does not resolve the problem then go to the troubleshooting section to determine the cause 4 Identify the microphone and headset leads When using an Amron headset the micropho...

Page 24: ...L SPEAKER You should be able to hear yourself in the headset Adjust the TENDER TO DIVER VOLUME if necessary and verify that the level can be adjusted to a comfortable level 8 Plug the microphone lead...

Page 25: ...an damp cloth Pay particular attention to where the various front panel components attach to the panel Inspect the switches binding posts and volume controls for smooth operation 5 3 3 6 Month Check W...

Page 26: ...s are very simple failures and can often be found by a very careful and close inspection of the unit or system Logical deductions and equipment familiarity can often reduce the suspected area to just...

Page 27: ...by pressing the PUSH TO TALK BUTTON and talking into the PANEL SPEAKER If this solves the problem then the tender headset may be wet or defective If the tender is using the PANEL SPEAKER to talk to th...

Page 28: ...kly determine the source of the acoustic feedback is to cover each active microphone with your hand one at a time Another method is to adjust the volume controls one at a time The volume control that...

Page 29: ...these solves the problem there could be a broken wire inside the diver communicator Open the front panel and inspect all wire connections If that does not resolve the problem then contact Amron for fu...

Page 30: ...2825R XX SERIES TWO DIVER RACK MOUNT COMMUNICATOR USER MANUAL 282XR UM REV 5 0 27 6 1 Parts Identifier Front Panel Model 2825R 01...

Page 31: ...2825R XX SERIES TWO DIVER RACK MOUNT COMMUNICATOR USER MANUAL 282XR UM REV 5 0 28 6 2 Parts Identifier Front Panel Model 2825R 02...

Page 32: ...date To Order Replacement Parts Contact Amron International Inc 1380 Aspen Way Vista California 92081 U S A Telephone 760 208 6500 Fax 760 599 3857 Email sales amronintl com Web www amronintl com Whe...

Page 33: ...IUM UNSCRAMBLER PC CARD ASSEMBLY N S 2825R 26 400 DSP3 AMCOM II FRONT PANEL ASSEMBLY N S 2405 28 MICROPHONE PUSH TO TALK N S 2890 05 RECHAREABLE SEALED LEAD ACID BATTERY 12VDC N S MS 3106A 28 16P MS C...

Page 34: ...OUNTING CLIP FOR 5MM LED 16 LEDGREEN LEDGREEN BRITE 17 LT2462 24 D51 LED BI COLOR RED GREEN 23 SWB 0001 BOOT TOGGLE SOFT GRAY 24 113 10K0 05 POTENTIOMETER 10K OHM 25 190 0500 15 KNOB TURN COUNTING DIA...

Page 35: ...21 AMPLIFIER PC CARD ASSEMBLY FOR 2825R 01 N S 570 1008 21 HSU AMPLIFIER PC CARD ASSEMBLY FOR 2825R 02 N S 570 1006 02 DSP3 HELIUM UNSCRAMBLER PC CARD ASSEMBLY N S 190 0101 00 POWER SUPPLY AC DC 90 2...

Page 36: ...use negligence accident repair or alterations SERVICE POLICY For technical assistance or to request a repair please complete one of the following Amron Communicator Repair https www amronintl com comm...

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