Actisense EMU-1-BAS NMEA 2000 Engine Monitoring Unit - Analog to NMEA2000 Gateway for Marine Engines

NMEA 2000 Engine Monitoring Unit - Analog to NMEA2000 Engine Gateway

Share engine information on the NMEA 2000 bus.

The Actisense EMU-1 is a specialized analogue to NMEA 2000 Gateway which converts data from analogue engine gauges/senders into NMEA 2000 data. The EMU-1 enables the sharing of engine data throughout the NMEA 2000 bus. It digitizes analogue engine sensors, enabling NMEA 2000 display devices to monitor the connected engine(s) on a vessel.

The EMU-1 can monitor vital engine parameters such as temperature, pressure RPM and fluid levels from up to two engines.

The EMU-1 has a PC-based configuration tool that allows the settings inside the EMU-1 to be changed to best suit the engine it is working with, making it a flexible solution for many engine makes and models.

An Actisense PC to NMEA 2000 Gateway (NGX-1/NGT-1) is required to configure the EMU-1.

The NGX-1 or NGT-1 must be used to update the firmware, connect the Toolkit and display data on a PC for diagnostic and information purposes, using NMEA Reader. Please visit the NGX-1 page and/or NGT-1 page for product details.

Features:

• Enables analogue signals to be converted to NMEA 2000 messages
• Convert signals from up to two engines (that share a common ground) with a single EMU-1
• 6 gauge / parameter inputs
• 4 alarm inputs
• 2 additional auxiliary inputs
• 2 Tacho inputs
• Customized IP65 case
• Diagnostic LEDs
• Wide power compatibility of 9 to 35VDC
• No need to change an existing engine
• Easy installation
• Easy to configure to suit the connected engine
• Connect signals from fluid level gauges (that share a common ground with the engine) to NMEA 2000
• Optional DIN rail mounting kit available
• Total engine hours are logged by the monitoring of engine Tach (RPM) input

Technical Specifications:

Power Supply

• Supply Voltage - 9 to 35VDC
• Supply Current - Typically < 25mA @ 12VDC
• Supply Protection - Continuous reverse polarity protection and load dump protection (meets SAE J1113)
• Supply Connector - Pluggable 2-way screw terminal, 3.5mm pitch
• Supply Voltage (NMEA 2000 Port) - 9 to 29VDC
• Supply Current (NMEA 2000 Port) - < 20mA @ 12VDC from NMEA 2000 bus
• Load Equivalent Number (LEN) - 1
• Supply Protection (NMEA 2000 Port) - Continuous reverse polarity protection and overvoltage protection to 40V

NMEA 2000 Port In/Out

• Compatibility - Fully NMEA 2000 certified
• Galvanic Isolation - 2500V input to ground, 1500V output to ground using ISO-Drive
• Speed / Baud Rate - 250kbps
• NMEA 2000 Connector - M12 male (A coded) connector

Gauge Inputs

• Voltage Range - 0 to 35VDC
• Input Impedance - > 50k
• Sender Feed - 0, 4 or 18mA
• Accuracy - <= 2%
• Input Connector - Pluggable 6-way screw terminal, 3.5mm pitch
• Input Protection - Overvoltage protection to 40V

Alarm Inputs

• Voltage Range - 0 to 37VDC
• Input Impedance - > 50k
• Threshold Voltage - Configurable, default is 5V
• Alarm Polarity - Configurable, default is alarm on low input
• Accuracy - <= 2%
• Input Connector - Pluggable 4-way screw terminal, 3.5mm pitch
• Input Protection - Overvoltage protection to 40V

Tacho Inputs

• Voltage Range - 3 to 60V
• Input Impedance - > 100k to ground
• Input Pulse Range - 4 to 50,000Hz
• Accuracy - <= 1%
• Sender Compatibility - Ignition coil, alternator (W, R or AC) terminal, hall effect, VR or inductive sender
• Threshold - Automatically adjusts to signal level
• Input Connector - Pluggable 4-way screw terminal, 3.5mm pitch
• Input Protection - Can withstand an ignition pulse to 500V

Engine Log

• Engine Hours - 2 separate engine hour logs internally connected to the tacho Inputs. Hours are logged when RPM is present, stored in non-volatile memory

Mechanical

• Housing Material - Polycarbonate
• Protective Lid Material - Polycarbonate
• Sealing Materials - Expanded silicone foam gasket, closed cell polyurethane splash guard and ePTFE waterproof vent
• Dimensions - 127mm (L) x 112mm (W) x 48mm (H)
• Weight - 250g
• Mounting - 4 x 3.5mm lugs to allow panel mount with self tapping s/s screws (included), optional DIN Rail mount available on request

Approvals and Certifications

• EMC - EN 60945 (sections 9 10)
• Environmental Protection - IP66 (PCB housing)
• Operating Temperature - -20C to +55C
• Storage Temperature - -30C to +70C
• Recommended Humidity - 0 93% RH
• Guarantee - 3 years

The Actisense EMU-1-BAS is a versatile NMEA 2000 engine monitoring gateway designed for seamless integration of analog engine sensors with your vessel's NMEA 2000 network. This compact device converts signals from up to two engines, including temperature, pressure, RPM, and fluid levels, into standardized NMEA 2000 messages, enabling comprehensive engine monitoring on compatible displays and systems. Its plug-and-play setup allows boaters and technicians to retrofit existing engines without extensive modifications, making it an ideal solution for both new and existing vessel installations.

Constructed with a durable IP66-rated polycarbonate enclosure, the EMU-1-BAS is built to withstand harsh marine environments. It features multiple gauge, alarm, auxiliary, and tach inputs, all configurable via a PC-based tool, providing tailored monitoring for various engine types and configurations. The device supports wide voltage input (9 to 35VDC) and offers galvanic isolation on its NMEA 2000 port for safety and reliability. The device also logs engine hours based on tachometer inputs, offering valuable maintenance data.

Installation is straightforward, with optional DIN rail mounting and comprehensive protection features, including reverse polarity and overvoltage protection, ensuring long-term reliable operation. The EMU-1-BAS is certified to meet industry standards like EN 60945, guaranteeing EMC compliance and environmental protection. With a three-year warranty, this product is backed by Actisense’s reputation for quality and precision, making it an essential tool for marine engine monitoring and diagnostics.

Note: This product requires an Actisense PC to NMEA 2000 Gateway (NGX-1 or NGT-1) for configuration and firmware updates. The EMU-1-BAS enhances the data sharing capabilities of your vessel, providing critical engine information for safer, more efficient marine operations.

Features:

• Enables conversion of analog engine signals to NMEA 2000 messages for seamless integration

• Supports monitoring of up to two engines sharing a common ground

• Six gauge/parameter inputs for comprehensive engine data collection

• Four alarm inputs for critical warning alerts

• Two auxiliary inputs for additional sensors or controls

• Two tachometer inputs for engine RPM and hours logging

• Customizable IP65-rated enclosure for durability in marine environments

• Diagnostic LEDs for quick troubleshooting

• Wide voltage compatibility from 9 to 35VDC with reverse polarity protection

• Easy installation with optional DIN rail mounting kit

• Configurable settings via PC for tailored engine monitoring

• Supports fluid level gauges sharing common ground

• Logs engine hours based on tachometer activity for maintenance tracking

• Certified to meet EN 60945 standards for EMC and environmental protection