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Maretron ACM100 - page 1
Revision 1.2 Page i ® ® ACM100 Alternating Current Monitor User’s Manual Revision 1.2 Copyright © 2012 Maretron, LLP All Rights Reserved Maretron, LLP 9014 N. 23 rd Ave #10 Phoenix, AZ 85021-7850 http://www.maretron.com Maretron Manual Part #: M001701 ...
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Maretron ACM100 - page 2
ACM100 User’s Manual Page ii Revision 1.2 Revision History Revision Description 1.0 Original document 1.1 Corrected AC sensor part number Updated mounting drawing 1.2 Added sensed voltage and cu rrent range specifications Added prohibition of red Loctite threadl ocking compound and cleaning agents containing acetone ...
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Maretron ACM100 - page 3
Revision 1.2 Page iii ® ® Table of Contents 1 Introduc tion .................................................................................................................. ......... 1 1.1 Firmware Revi sion .................................................................................................... 1 1.2 ACM100 Feat ...
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Maretron ACM100 - page 4
ACM100 User’s Manual Page iv Revision 1.2 Figure 4 – Single-Phase (Dual Line) Connecti on Diagram ........................................................ 6 Figure 5 – Three-Phase Connection Di agram ........................................................................... 8 Figure 6 – Mounting Su rface Temp late ................. ...
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Maretron ACM100 - page 5
Revision 1.2 Page 1 ® ® 1 Introduction Congratulations on your purchase of the Maretr on Alternating Current (A C) Monitor (ACM100). Maretron has designed and built your ACM100 to the highest standards for years of dependable and accurate service. Maretron’s ACM100 is a device which monitors AC power sources and outputs information about these ...
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Maretron ACM100 - page 6
ACM100 User’s Manual Page 2 Revision 1.2 o 230VAC single phase o 380VAC Y Three-phase (380Y) 1.3 Quick Install Installing the Maretron ACM100 invo lves the following five steps. Please refer to the individual sections for additional details. 1. Unpack the box (Section 2.1 ) 2. Choose a mounting location (Section 2.2 ) 3. Mount the ACM100 (Section ...
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Maretron ACM100 - page 7
Revision 1.2 Page 3 ® ® 2.3 Mounting the ACM100 Attach the ACM100 securely to the vessel usi ng the included stainless steel mounting screws or other fasteners as shown in Figure 1 below . Do not use threadlocking compounds containing methacrylate ester, such as Loctite Red (271), as they will cause stress cracking of the plastic enclosure. Figur ...
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Maretron ACM100 - page 8
ACM100 User’s Manual Figure 2 – NMEA 2000 ® Connector Face Views 2.4.2 AC Sensor Connections The ACM100 sensor connections are made by connecting to the 12-pin terminal strip on the top of the unit. First, remove the four screws at the corners of the unit det aching the splash guard from the unit. On the bottom of the splash guard, you will fi ...
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Maretron ACM100 - page 9
® ® WARNING: If the supplied current transformer is plac ed around a wire carrying AC current, then extremely high voltages can develop on the output leads of the current transformer, with severe risk of el ectrocution. For safety, keep the output leads of the current transformer(s) shor ted or tied together until they are connected to the proper ...
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Maretron ACM100 - page 10
ACM100 User’s Manual a. Connect the black wire to pin 7 (I A+ ) on the ACM100 b. Connect the white wire to pin 8 (I A- ) on the ACM100 c. Disconnect the hot wire from the AC power source and plac e it through the hole in the Current Sensor such that the arrow on the Current Sensor points towards the AC power source. Then, reattach the hot wire to ...
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Maretron ACM100 - page 11
Revision 1.2 Page 7 ® ® will need to purchase an optional cu rrent sensor (Part # M000630) fo r monitoring this type of system. Step 1: De-energize the AC Source. Step 2: The Current Transformer has black and wh ite wires. Install the Phase A Current Transformer as follows: a. Connect the black wire to pin 7 (I A+ ) on the ACM100 b. Connect the w ...
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Maretron ACM100 - page 12
ACM100 User’s Manual 2.4.2.3 Three-Phase (Phase A, B, C) Connection Please refer to Figure 5 for connecting the ACM100 to a three phase system. Page 8 Revision 1.2 Figure 5 – Three-Phase Connection Diagram Use the following instructions when you are c onnecting the ACM100 to a three-phase “Wye” circuit connected via three hot wires and a si ...
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Maretron ACM100 - page 13
Revision 1.2 Page 9 ® ® c. Disconnect the Phase B hot wire from the AC power sour ce and pl ace it through the hole in the Current Sensor such that the arrow on t he Current Sensor points towards the AC power source. Then, reattach the Phase B hot wire to the AC power source. Step 4: Install the third Current Transformer as follows: a. Connect th ...
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Maretron ACM100 - page 14
ACM100 User’s Manual Page 10 Revision 1.2 c. Connect the black wire from one end of the second Voltage Sense cable to pin 3 (V CLine ) on the ACM100 d. Connect the black wire from the other end of the second Voltage Sense cable to a fuse appropriately sized for the black wire (18 gauge wire minimum and 3 amp fuse or less). e. Connect the other en ...
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Maretron ACM100 - page 15
Revision 1.2 Page 11 ® ® 2.5.3 AC Circuit Type You must configure the ACM100 as to what type of AC circuit connection it is monitoring. The allowable values for this parameter are as follows: • Single-Phase (Phase A) – use this value when power is connected via a single hot wire and a single neutral wire (a typica l 110VAC connection in the U ...
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Maretron ACM100 - page 16
ACM100 User’s Manual Page 12 Revision 1.2 reconnecting the current transformer, you may c hange the value of this parameter from the default value of “Normal Install” to “I nverse Install” to correct for this. 2.5.5.5 Current Transformer B If you notice that the current of phase B is negative when it shoul d be positive, or vice-versa, th ...
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Maretron ACM100 - page 17
Revision 1.2 Page 13 ® ® 3.1 Line-Specific and Line-to-Neutral Measurements Parameter AC Source Type Available Data Bus Generator Utility Average Phase A Phase B Phase C Line-Neutral AC RMS Voltage 9 9 9 9 9 9 1 9 2 AC RMS Current 9 9 9 9 9 1 9 2 AC Frequency 9 9 9 9 9 9 1 9 2 Real Power 9 9 9 9 9 1 9 2 Apparent Power 9 9 9 9 9 1 9 2 Reactive Pow ...
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Maretron ACM100 - page 18
ACM100 User’s Manual Page 14 Revision 1.2 • Clean the unit with a soft cloth. Do not use chemical cleaners as they may remove paint or markings or may corrode the ACM 100 enclosure or seals. Do not use any cleaners containing acetone, as they will deteriorate the plastic enclosure. • Ensure that the unit is mounted securely an d cannot be mov ...
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Maretron ACM100 - page 19
Revision 1.2 Page 15 ® ® 6 Technical Specifications As Maretron is constantly impr oving its products, all specificat ions are subject to change without notice. Maretron products are designed to be accurate and reliable; however , they should be used only as aids to navigation and not as a replacem ent for tradition al navigation aids and techniq ...
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Maretron ACM100 - page 20
ACM100 User’s Manual Page 16 Revision 1.2 Electrical Parameter Value Comment Sensed Voltage 0-240 VAC 120,120/240,240,208Y,380Y configu rations Sensed Current 0-200 A With supplied current transformer Operating Voltage 5 to 36 Volts DC Voltage Power Consumption 100 mA NMEA 2000 ® Interface Load Equivalence Number (LEN) 2 NMEA 2000 ® Spec. (1LEN ...
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Maretron ACM100 - page 21
® ® 8 Installation Template Please check the dimensions before using the fo llowing diagram as a template for drilling the mounting holes because the printing proc ess may have distorted the dimensions. Figure 6 – Mounting Surface Template Revision 1.2 Page 17 ...
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Maretron ACM100 - page 22
ACM100 User’s Manual Page 18 Revision 1.2 9 Maretron (2 Year) Limited Warranty Maretron warrants the ACM100 to be free from defects in materials and workm anship for two (2) years from the date of original purchase. If within the applicable per iod any such products shall be p roved to Maretron’s satisfaction to fail to meet the above lim ited ...
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Maretron ACM100 - page 23
Revision 1.2 Appendix A – NMEA 2000 Interfacing Page A1 ® ® Appendix A – NMEA 2000 ® Interfacing ACM100 NMEA 2000 ® Periodic Data Transmitted PGNs PGN 65001 – Bus #1 Phase C Basic AC Quantities PGN 65002 – Bus #1 Phase B Basic AC Quantities PGN 65003 – Bus #1 Phase A Basic AC Quantities PGN 65004 – Bus #1 Averag e Basic AC Quantitie ...
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Maretron ACM100 - page 24
ACM100 User’s Manual Page A2 Appendix A – NMEA 2000 Interfacing Revision 1.2 PGN 65005 – Utility Total AC Energy PGN 65018 – Generator Total AC Energy The ACM100 uses this PGN to transmit the total energy delivered by the power source. Field 1: Total kWh Hours Export – This field indicates the total energy delivered by the AC power source ...
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