Maretron DCM100 User Manual
®®
DCM100
DC Monitor
User’s Manual
Revision 1.0
Copyright © 2008 Maretron, LLP All Rights Reserved
Maretron, LLP
9014 N. 23rd Ave #10
Phoenix, AZ 85021-7850
http://www.maretron.com
Maretron Manual Part #: M000026
Revision 1.0 Page i
DCM100 User’s Manual
Revision History
Revision Description
1.0 Original document
Page ii Revision 1.0
®®
Table of Contents
1 Introduction ........................................................................................................................... 1
1.1 Firmware Revision .................................................................................................... 1
1.2 DCM100 Features .................................................................................................... 1
1.3 Quick Install .............................................................................................................. 1
2 Installation ............................................................................................................................. 2
2.1 Unpacking the Box ................................................................................................... 2
2.2 Choosing a Mounting Location ................................................................................. 2
2.3 Mounting the DCM100 .............................................................................................. 3
2.4 Connecting the DCM100 .......................................................................................... 3
2.4.1 Connecting the DCM100 NMEA 2000® Interface ........................................... 3
2.4.2 Connecting the DC power and Sensor Connections ...................................... 4
2.4.3 Checking Connections ................................................................................... 5
2.5 Configuring the DCM100 .......................................................................................... 5
2.5.1 Instance Selection ......................................................................................... 6
2.5.2 Priority Selection ............................................................................................ 6
2.5.3 DC Type ........................................................................................................ 6
2.5.4 Battery-Specific Options ................................................................................ 6
2.5.4.1 Battery Type ..................................................................................... 6
2.5.4.2 Nominal Voltage ............................................................................... 6
2.5.4.3 Equalization ..................................................................................... 7
2.5.4.4 Temperature Coefficient ................................................................... 7
2.5.4.5 Peukert Exponent ............................................................................. 7
2.5.4.6 Charge Efficiency Factor .................................................................. 7
2.5.4.7 Fully Charged Voltage ...................................................................... 7
2.5.4.8 Fully Charged Current ...................................................................... 7
2.5.4.9 Fully Charged Time .......................................................................... 7
2.5.4.10Battery Temperature ........................................................................ 7
2.5.4.11Time Remaining Floor ...................................................................... 8
2.5.4.12Time Remaining Averaging Period ................................................... 8
2.5.4.13Zero Current Threshold .................................................................... 8
2.5.4.14Current Sensor Zero Offset Calibration ............................................ 8
2.5.5 NMEA 2000® PGN Enable/Disable ................................................................ 8
2.5.6 Restore Factory Defaults ............................................................................... 8
3 Output Parameters ................................................................................................................ 8
3.1 Parameters Common to DC Sources and Batteries ................................................. 9
3.1.1 Battery Voltage .............................................................................................. 9
3.1.2 Battery Current .............................................................................................. 9
3.1.3 Ripple Voltage ............................................................................................... 9
3.1.4 Parameters Specific to Batteries .................................................................... 9
3.1.5 Battery Case Temperature ............................................................................ 9
3.1.6 State of Charge .............................................................................................. 9
3.1.7 Time Remaining ............................................................................................. 9
4 Background ......................................................................................................................... 10
4.1 Why Monitor Batteries? .......................................................................................... 10
4.2 Batteries ................................................................................................................. 10
Revision 1.0 Page iii
DCM100 User’s Manual
4.3 Battery Capacity ..................................................................................................... 10
4.4 Battery Types ......................................................................................................... 10
4.5 Battery Safety Precautions ..................................................................................... 11
4.6 Charging Inefficiencies ........................................................................................... 11
4.6.1 Charge Efficiency Factor (CEF) ................................................................... 11
4.7 Discharging Inefficiencies ....................................................................................... 11
4.8 Peukert Exponent ................................................................................................... 11
5 Synchronization ................................................................................................................... 12
5.1 Charge Efficiency Factor Calculation ...................................................................... 12
6 Maintenance ........................................................................................................................ 12
7 Troubleshooting .................................................................................................................. 13
8 Technical Specifications ...................................................................................................... 14
9 Technical Support ............................................................................................................... 15
10 Installation Template ........................................................................................................... 16
11 Maretron (2 Year) Limited Warranty .................................................................................... 17
Table of Figures
Figure 1 – Mounting the DCM100 ............................................................................................... 3
Figure 2 – NMEA 2000® Connector Face Views ........................................................................ 4
Figure 3 – Mounting Surface Template .................................................................................... 16
Table of Appendices
Appendix A – NMEA 2000® Interfacing Translations ............................................................... A1
Page iv Revision 1.0
®®
1 Introduction
Congratulations on your purchase of the Maretron DC Monitor (DCM100). Maretron has
designed and built your DC monitor to the highest standards for years of dependable and
accurate service.
Maretron’s DCM100 is a device which monitors DC power sources or batteries and outputs
information about these sources onto the industry standard NMEA 2000® marine data network
so that these data can be monitored with networked NMEA 2000® displays such as the
Maretron DSM250 or with NMEA 2000® compatible software such as Maretron N2KView.
The Maretron DCM100 is designed to operate within the harsh demands of the marine
environment. However, no piece of marine electronic equipment can function properly unless
installed, configured, and maintained in the correct manner. Please read carefully and follow
these instructions for installation, configuration, and usage of the Maretron DCM100 in order to
ensure optimal performance.
1.1 Firmware Revision
This manual corresponds to DCM100 firmware revision 1.0.2.
1.2 DCM100 Features
The Maretron DCM100 has the following features.
• NMEA 2000® Interface
• Waterproof Connectors
• Sealed Waterproof Enclosure
• Opto-Isolated from NMEA 2000® Eliminating Potential Ground Loops
• Can monitor DC Power Sources, Transmitting Voltage and Current
• Can monitor Lead Acid and Gel Batteries, Transmitting Voltage, Current, Temperature,
and State of Charge
• Uses Peukert’s Constant and Charge Efficiency Factor for Accurate State of Charge
Calculation
• Can Calculate Charge Efficiency Factor Based on Observed Battery Performance
1.3 Quick Install
Installing the Maretron DCM100 DC monitor involves 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 DCM100 (Section 2.3)
4. Connect the DCM100 (Section 2.4)
5. Configure the DCM100 (Section 2.5)
6. Synchronize the DCM100 with the battery (Section 2.6)
Revision 1.0 Page 1
DCM100 User’s Manual
2 Installation
2.1 Unpacking the Box
When unpacking the box containing the Maretron DCM100, you should find the following
items:
1 – DCM100 – DC Monitor
1 – DC Current Sensor with 5 ft. long cable (Part # LEMHTA200-S) (outer cable covering grey)
1 – Battery Temperature Sensor with 5 ft. long cable (Part # TR3K) (outer cable covering grey)
1 – Battery Voltage Sense Cable, 5 ft. long (Part # FC01) (outer cable covering white )
1 – Power Cable, 5 ft. long (Part # FC01) (outer cable covering white)
1 – Parts Bag containing 4 Stainless Steel Mounting Screws
1 – DCM100 User’s Manual
1 – Warranty Registration Card
If any of these items are missing or damaged, please contact Maretron.
2.2 Choosing a Mounting Location
The DCM100 should be mounted near the monitored source of DC power. Please consider the
following when choosing a mounting location.
1. The DCM100 is waterproof, so it can be mounted in a damp or dry location.
2. The orientation is not important, so the DCM100 can be mounted on a horizontal deck,
vertical bulkhead, or even upside down if desired.
3. The DCM100 is temperature rated to 55°C (130°F), so it should be mounted away from
engines or engine rooms where the operating temperature exceeds the specified limit.
Page 2 Revision 1.0
®®
2.3 Mounting the DCM100
Attach the DCM100 securely to the vessel using the included stainless steel mounting screws
or other fasteners as shown in Figure 1 below.
Figure 1 – Mounting the DCM100
2.4 Connecting the DCM100
The DCM100 requires two electrical connections as shown in . Refer to Section 2.4.1 for
making the NMEA 2000® connection and Section 2.4.2 for making the DC monitor connections
(i.e., current sensor, sensing voltage, and temperature sensor connections)..
2.4.1 Connecting the DCM100 NMEA 2000® Interface
Vertical text on the DCM100 label identifies the NMEA 2000® connector. With the label right
side up, the NMEA 2000
NMEA 2000® connector is a five pin male connector (see Figure 2). You connect the DCM100
to an NMEA 2000® network using a Maretron NMEA 2000® cable (or compatible cable) by
connecting the female end of the cable to the DCM100 (note the key on the male connector
and keyway on the female connector). Be sure the cable is connected securely and that the
collar on the cable connector is tightened firmly. Connect the other end of the cable (male) to
the NMEA 2000® network in the same manner. The DCM100 is designed such that you can
plug or unplug it from an NMEA 2000® network while the power to the network is connected or
disconnected. Please follow recommended practices for installing NMEA 2000® network
products.
®
connector can be found on the right side of the enclosure. The
Revision 1.0 Page 3
DCM100 User’s Manual
Figure 2 – NMEA 2000® Connector Face Views
2.4.2 Connecting the DC power and Sensor Connections
The DCM100’s DC Power and 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
securing the splash guard to the unit. On the bottom of the splash guard, you will find a label
detailing the wire connection to pin number assignments, which are repeated in the table
below.
Pin Number Signal Name Connection
1 IA Current Sensor, Red Wire
2 IB Current Sensor, Green Wire
3 IC Current Sensor, Black Wire
4 ID Current Sensor, White Wire
5 V
6 V
7 V
8 V
9 No Connect
10 No Connect
11 TA Temperature Sender, Red Wire
12 TB Temperature Sender, Black Wire
Step 1: The Current Sensor (LEMHTA200-S) has a gray cable containing red, green, black,
and white wires. Install the Current Sensor as follows:
a. Connect the red wire to pin 1 (I
b. Connect the green wire to pin 2 (I
c. Connect the black wire to pin 3 (I
d. Connect the white wire to pin 4 (I
Battery, + Terminal
SENS+
Battery, - Terminal
SENS-
Vessel Ground
PWR-
9-16 V Power
PWR+
) on the DCM100
A
) on the DCM100
B
) on the DCM100
C
) on the DCM100
D
Page 4 Revision 1.0
Loading...