ID
1291162
$ 220.04
1-2 weeks delivery time
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The Yacht Devices YDBM-02R is a marine battery and DC circuit monitor with a Raymarine SeaTalk NG-compatible connector for direct integration into SeaTalk NG networks. It measures voltage and bidirectional current, supports calculated State of Charge, State of Health, consumed ampere-hours and time remaining, and can work with an external shunt installed on either the positive or negative battery terminal. The unit supports shunts rated from 5 to 2500 A with a recommended 75 mV nominal drop, provides ±0.5% FSR current measurement accuracy and 0.1 V voltage measurement accuracy, operates from 7–16 V, measures 54 mm in case length and weighs 60 g.
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Yacht Devices YDBM-02R SeaTalk NG Battery Monitor with Positive or Negative Shunt Connection, 5–2500 A
The Yacht Devices YDBM-02R is a marine battery and DC circuit monitoring device designed for integration with Raymarine SeaTalk NG and NMEA 2000 networks. It measures voltage and bidirectional current and reports both measured and calculated battery information to compatible multifunction displays, instrument displays and other equipment connected to the network.
The YDBM-02R version is equipped with a Raymarine SeaTalk NG-compatible connector. The device can be used primarily for battery monitoring, but it can also monitor a single DC source or load, including alternators, wind generators, windlasses and refrigerators.
Main Features
- Raymarine SeaTalk NG-compatible network connection
- Measures DC voltage and bidirectional current
- Supports battery, DC source and DC load monitoring
- Calculates State of Charge and State of Health
- Calculates consumed ampere-hours and battery time remaining
- Supports external shunts rated from 5 to 2500 A
- Recommended external shunt nominal voltage drop of 75 mV
- Supports shunt installation on either the positive or negative battery terminal
- MicroSD card slot for configuration and firmware updates
- Supports NMEA 2000 digital switching functions
- Can trigger alarms or control compatible equipment according to configured battery conditions
Improved Shunt Connection
Unlike the previous YDBM-01 model, the YDBM-02 uses four input wires and can operate with the external shunt installed on either the positive or negative battery terminal. Both connection methods provide the same operating performance.
Wire Color Name Function Red V+ DC source / battery positive terminal voltage input Yellow Vs+ Shunt positive side input Blue Vs− Shunt negative side input Black V− DC source / battery negative or ground
Electrical Specifications
Parameter Specification Supply voltage 7–16 V from NMEA 2000 interface Average current consumption 50 mA Load Equivalency Number 2 LEN External shunt rated current 5–2500 A Recommended shunt nominal voltage drop 75 mV Measured shunt voltage range -50 to +50 mV Current measurement accuracy ±0.5% FSR Voltage measurement range 0.5–40 V Voltage measurement accuracy 0.1 V Maximum allowed DC voltage on inputs 40 V Maximum continuous voltage between Vs+ and Vs− ±15 V Input impedance between V+ and V− 65 kOhm Typical input current per Vs+ and Vs− 250 µA Breakdown voltage between NMEA 2000 interface and inputs 2500 VRMS
Physical Specifications
Parameter Specification Model YDBM-02R Network compatibility Raymarine SeaTalk NG / NMEA 2000 Device case length without connector 54 mm Weight 60 g Operating temperature range -20°C to +55°C
Battery Monitoring Functions
- Battery voltage
- Charge and discharge current
- Battery temperature from an external NMEA 2000 temperature sensor
- State of Charge
- State of Health
- Consumed ampere-hours
- Battery time remaining
The device measures both positive and negative current. By default, negative current indicates battery discharge and positive current indicates charging. This current sign behavior can also be reversed in the device configuration.
External Shunt
An external shunt is required for current measurement and is not supplied with the YDBM-02R. The device supports shunts rated from 5 to 2500 A and is designed primarily for use with a 75 mV shunt.
The stated current measurement accuracy does not include the accuracy of the external shunt, which is typically ±0.25% or ±0.5%, with approximately ±20–25 ppm/°C temperature drift.
SeaTalk NG and NMEA 2000 Integration
The YDBM-02R is the Raymarine SeaTalk NG-compatible version of the YDBM-02 Battery Monitor. It can be connected directly to the NMEA 2000 network backbone without a drop cable.
Measured battery data is available to compatible equipment on the network. Battery Status data can include voltage, current and temperature, while DC Detailed Status data can include calculated parameters such as State of Charge and time remaining.
Digital Switching Support
Measured voltage, current, external battery temperature and calculated State of Charge can be used to manage compatible NMEA 2000 digital switching channels or trigger an alarm unit using PGN 127501 and PGN 127502.
- Low State of Charge alarm activation
- Low voltage alarm activation
- Automatic switching of connected equipment
- Automatic genset start through compatible switching equipment
- Monitoring of abnormal DC load behavior
Configuration and Firmware Updates
The YDBM-02R incorporates a MicroSD card slot for device configuration and firmware updates. It supports FAT, FAT12, FAT16 and FAT32 file systems.
The device can also be configured through the NMEA 2000 Installation Description Field 2 using compatible PC software such as Yacht Devices CAN Log Viewer, ActiSense NMEA Reader or Maretron N2KAnalyzer with an appropriate NMEA 2000 gateway.
Supported Configuration Parameters
Parameter Available Configuration External shunt rated current 1–2500 A External shunt voltage drop 50–100 mV Battery nominal voltage 6 / 12 / 24 / 32 / 36 V Battery capacity 1–65532 Ah Battery chemistry Lead Acid, Lithium-ion, NiCad, ZnO, NiMH DC source type Battery, alternator, converter, solar cell or wind generator Current sign Normal or reversed
Supplied Components
- YDBM-02R Battery Monitor
- MicroSD slot sealing stickers – 6 pcs.
The MicroSD card, NMEA 2000 cable and external shunt are not supplied.
Documents
Yacht Devices YDBM-02 - NMEA 2000 Battery Monitor Size: 942,2 Kb -
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