Acom ACOM2100 Operating Manual
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Acom ACOM2100 Operating Manual

Hf + 6 m linear amplifier
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HF + 6 m LINEAR AMPLIFIER
OPERATING MANUAL
1
Outstanding HF Power Products

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Summary of Contents for Acom ACOM2100

  • Page 1 HF + 6 m LINEAR AMPLIFIER OPERATING MANUAL Outstanding HF Power Products...

  • Page 2: Table Of Contents

    6-3. Tube Replacement ..........17 6-4. The ACOM2100 Simplified Schematic Diagram ......17 6-5.

  • Page 3: General Information

    If assistance is needed, you should contact your local dealer first. If you still have an issue you need to discuss with one of ACOM's specialists, the contact information is as follows: fax + 359 2 920 96 56, tel.

  • Page 4: Safety Considerations, Explicit Definitions

    1-5. Safety Considerations, Explicit Definitions The ACOM2100 HF + 6 meters Linear Amplifier is a Safety Class I unit. The third grounding lead of its mains cord (colored yellow with two green stripes) and the ground stud on the rear panel of the amplifier (marked GND) should be connected to the station's grounding system for safe operation.
  • Page 5 W A R N I N G HIGH VOLTAGE! The amplifier works with high voltages above 3000V, which are LETHAL! Also, for your safety, pull the amplifier power plug out of the mains wall outlet and WAIT AT LEAST 30 minutes EACH TIME BEFORE you remove the cover of the amplifier.

  • Page 6: Installation

    Table of Individual Data (Table 2-1, below). AMP s/n Tube s/n Table 2-1. ACOM 2100 Individual Data C A U T I O N The current consumed by the amplifier from the mains supply should not exceed 16A from 200/240VAC and 20A from 100/120VAC.

  • Page 7: Connections

    N O T E If the power transformer is not readily installed check the Transformer installation leaflet supplied with it. 2-4. Connections Connection to your station must be accomplished in the order described below before you apply mains voltage to the amplifier. W A R N I N G Note that the grounding system may have to withstand currents over 20A with minimal voltage drop.

  • Page 8: Installation Of External Fan

    N O T E Your amplifier will not work if KEY-IN is not connected properly. Transceiver producers give different names to this output, such as TX-GND, SEND, T/R-LINE, PTT, etc. Some transceivers require that "ground on transmit" be implemented via a software command, or by changing the setting of a switch on the rear panel or in the interior of the transceiver.

  • Page 9: Power On, Controls And Indicators

    (Fig.2-1). The LED indicator above the red ON/OFF button located on the front panel must light red and an inscription "ACOM1500" will appear on the display (Fig.3-1): Fig. 3-1 ACOM2100 Display and Control Note that the upper line of the OLED always reads the peak forward power, even in STBY mode. The 2400W scale resolution is 20W per bar.
  • Page 10 Fig.3-2 Information Screens and Control Functions Structure The OPER button changes operate and standby modes alternatively (S.4-2) while ON LINE. Please note that Auto-Operate might be enabled (S.5-2). The same button activates signature list while OFF LINE (S.5-3). The PREV and NEXT buttons change information screens or select control functions (S. 4-6) for both OFF LINE and ON LINE modes.

  • Page 11: Operation

    4. OPERATION Operation of the amplifier is simplified through use of the TRI tuning aid, Auto-Operate function, and automatic protection system, so you may begin using the amplifier immediately following installation. However, to make full use of the amplifier's potential and to fully configure it to your local conditions, we recommend that you thoroughly read the following information.

  • Page 12: Antenna Change

    When the Auto Operate function is disabled, the amplifier will shift and stay in STBY mode after each protection trip. To restore operation, the OPER button must be depressed. When the Auto Operate function is enabled (see S 5-2), the amplifier will shift to the STBY mode on a protection trip.
  • Page 13 N O T E If you use more than one antenna per band, it is necessary that you select the proper antenna BEFORE the next step. Retune after selecting a different antenna for the same band, since the impedances may differ substantially (unless their VSWRs are excellent, i.e., below 1.2:1 for both).

  • Page 14: Continuous Carrier Modes

    Look at the lower (Load Cap) scale and turn the lower (LOAD) knob in order to center the triangle marker at the "!" mark. Release the PTT briefly in order to disable the attenuator, then repeat both steps at nominal power. Always finish by peaking with the TUNE knob N O T E Appearance of an arrow on either left or right TRI scale edges means that the LOAD...

  • Page 15: On Line Information Screens And Control Functions

    C A U T I O N For transmissions longer than 15 minutes the external auxiliary fan must be installed (see S.2-5). 4-6. ON LINE Information Screens and Control Functions a) Besides the Warming Up and TRI (described above in S.4-1 and S.4-4), you have 12 more Information screens available.

  • Page 16: Off Line Mode

    5. OFF LINE MODE There are two control functions and 14 information screens available in the Off Line Mode of the amplifier. You may enable/disable the Auto-Operate feature and assign the antenna outputs. You may also list the auto-protection signatures. The tube is not powered at all (only the micro-controller is active) during these operations.

  • Page 17: Maintenance

    Check with your dealer before attempting to replace your tube. 6-4. The ACOM1500 Simplified Schematic Diagram See Fig.6-1 ACOM2100 Simplified Schematic Diagram. The 4CX1000A/8168 ceramic and metal radial beam tetrode (V1) is grid-driven. It can dissipate up to 1000W when forced air cooled and is specifically designed for class AB1 RF linear amplifiers.

  • Page 18: Troubleshooting

    Many software-derived protections are based on this information. * Detailed electrical schematic diagrams are available from ACOM or from your dealer on request. 6-5. Troubleshooting See S.5-3 for the method of reading the auto-protection signatures. You can decode them using the information below.*...
  • Page 19 * Additional information is available from ACOM or from your dealer on how to interpret these values. Using an Excel application available from ACOM or your dealer free of charge, and a PC, you can decode these signatures.

  • Page 20: Specifications

    7. SPECIFICATIONS 7-1. Parameters a) Frequency Coverage: All amateur bands 1.8-54 MHz, extensions and/or changes on request. b) Power Output: 1500 W PEP or continuous carrier, no mode limit. In continuous carrier modes (RTTY etc.) for transmissions longer than 5 minutes (up to several hours depending on ambient temperature), the external auxiliary fan must be installed.

  • Page 21: Storage And Shipment

    e) Signatures of the amplifier internal status are stored in a nonvolatile memory for the 7 most recent auto protection trips. Overdrive. e) Signatures of the amplifier internal status are stored in a nonvolatile memory for the 7 most recent auto protection trips.

  • Page 22: Apendix A

    APENDIX A ACOM 2100 TRANSFORMER INSTALLATION C A U T I O N After installing the transformer, the weight of the unit is about 30kg, which should preferably be handled by two persons. An assistant may be needed to hold the amplifier steady during transformer installation.
  • Page 23 Turn the Mains board right. Take the transformer out of the carton and remove the shipping board. Keep the board together with the four long screws and all packing for possible future transportation. For transformer mounting, four shorter screws (metric M6x12) are provided in a polyethylene envelope inside the same carton.
  • Page 24 Plug in the filament supply connector.
  • Page 25 Plug in two HV Fast-on connectors to the HV Rectifier board C A U T I O N Insert the two rubber grommets (readily threaded on each transformer HV lead) in the intended chassis-wall slots in order to protect both HV leads from sharp metal edges.
  • Page 26 Turn the Mains board back to its original position, pull out the 8 wires carefully, and tighten the holding screws. From the voltage selection table shown below, select the row matching your nominal mains voltage. Connect the 8 labeled HV-transformer primary wires to the voltage selector terminals accordingly.
  • Page 27 The picture shows 240VAC arrangement. Now find the LV transformer voltage selector on the Mains PCB and arrange the jumpers there according to the selected table row Connect all five connectors you disconnected in the beginning plus two new connectors from HV transformer.
  • Page 28 ACOM Ltd. Blvd. Nikola Mushanov 151 1330 Sofia, Bulgaria phone: +359 2 920 97 80 fax: +359 2 920 96 56 e-mail: acom@acom-bg.com acom@mail.orbitel.bg March 2016 www.acom-bg.com Printed in Bulgaria...

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