Actisense EMU-1 Engine Monitoring Unit
Actisense EMU-1 Engine Monitoring Unit
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Share engine information on the NMEA 2000 bus.
The Actisense EMU-1 Engine Monitoring Unit is a specialised analogue to NMEA 2000 Gateway which converts data from analogue engine senders into NMEA 2000. The EMU-1 enables NMEA 2000 display devices to monitor one or two engines on a vessel.
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. Capable of measuring a wide range of engine parameters, the EMU-1 reports how the engine is operating and shares the information across the network. Designed to simplify the conversion of analogue engine parameters (e.g. Temperature, pressure and RPM) into NMEA 2000 engine PGNs, the EMU-1 simplifies processes and reduces the number of input/output wires required at each engine. Additionally, the EMU-1 also supports the conversion of analogue transmission parameters and battery status to the associated NMEA 2000 PGN's.
Actisense EMU-1 can monitor two engines where each engine has three (or less) gauges that require monitoring. Where dual engines have more than three gauges each to monitor, multiple EMU-1 units are required. Alternatively, the EMU-1 can be used to monitor fluid levels in up to six tanks at any one time. The addition of a configurable 'instance' for each tank allows the user to identify which tank the data is coming from.
Actisense EMU-1 Engine Monitoring Unit Features:
- 6 gauge inputs
- 4 alarm inputs
- 2 tacho inputs
- Dual engine support (with a common ground)
- Logs total engine time using the tacho inputs
- Simple single wire gauge connections; common ground referenced
design
- Manual measurements are not required to configure
- Firmware and configuration can be modified remotely over the
NMEA 2000 network to suit different installations (requires an
NGT-1 and PC software)
- Waterproof electronics and splash-proof connections
- Pluggable connectors for quick and easy installation
- Optional DIN rail mounting kit available
Actisense EMU-1 Engine Monitoring Unit Specifications:
| Parameter | Description |
|---|---|
|
Power Supply |
|
| Supply Voltage | 9 to 35V DC |
| Supply Current | Typically <25mA @ 12V DC |
| 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 35V DC |
| Supply Current (NMEA 2000 port) | <20mA @ 12V DC from NMEA 2000 bus |
| Load Equivalence Number (NMEA 2000 port) | 1 LEN |
| Supply Protection (NMEA 2000 port) | Continuous reverse polarity protection and overvoltage protection to 40V |
| NMEA 2000 Port - in/out | |
| Compatibility | Fully NMEA 2000 compatible |
| Galvanic Isolation | 2500V input to ground |
| Speed/Baud Rate | 250kbps |
| NMEA 2000 Connector | M12 male (A coded) connector |
| Gauge Inputs | |
| Voltage Range | 0 to 35V DC |
| Input Impedance | >50kOhm |
| Sender Feed | 0, 4 or 18mA |
| Accuracy | <=2% |
| Input Connector | Pluggable 6-way screw terminal, 3.5mm pitch |
| Input Protection | Overvoltage protection to plus or minus 40V |
| Alarm Inputs | |
| Voltage Range | 0 to 37V DC |
| Input Impedance | >50kOhm |
| 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 | plus or minus 3 to plus or minus 60V |
| Input Impedance | >100KOhms to ground |
| Input Pulse Range | 4 to 50,000Hz |
| Accuracy | <=1% |
| Sender Compatibilty | Ignition coil, alternator W connection, 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 ignition pulse to plus or minus 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 water proof 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 | |
| NMEA 2000 | Full NMEA 2000 approval pending |
| EMC | IEC 60945 (sections 9 and 10) |
| Environmental Protection | IP66 |
| Operating Temperature | -20 degreesC to + 55 degreesC |
| Storage Temperature | -30 degreesC to + 70 degreesC |
| Relative Humidity | 0 to 93% RH |
| Guarantee | 3 years |
Actisense EMU-1 Engine Monitoring Unit Manual
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