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EMU-1 - Convert your analog engine data to NMEA 2000. (Please note that an Actisense NGT-1-USB or NGT-1-ISO is required to configure the EMU-1. This is an add-on/option to the order and is not included with the EMU-1)
|Supply Voltage||9 to 35V DC|
|Supply Current||<25mA @ 12V DC in idle mode|
|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|
|NMEA 2000 Connector||M12 male (A coded) connector|
|Voltage Range||0 to 35V DC|
|Sender Feed||0mA, 4mA or 18mA programmable|
|Input Connector||Pluggable 6-way screw terminal, 3.5mm pitch|
|Input Protection||Overvoltage protection to +/-40V|
|Voltage Range||0 to 37V DC|
|Threshold Voltage||Programmable, default is 0.5 of supply voltage|
|Alarm Polarity||Programmable, default is alarm on low input|
|Input Connector||Pluggable 4-way screw terminal, 3.5mm pitch|
|Input Protection||Overvoltage protection to =/-40V|
|Voltage Range||0 to +/-60V|
|Input Impedance||>100KOhms to ground|
|RPM Range||10 to 16,000 RPM|
|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 +/-500V|
|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.|
|Protective Lid Material||Polycarbonate|
|Sealing Materials||Expanded silicone foam gasket, closed cell polyurethane splash guard and ePTFE water proof vent|
|Dimensions||128mm (L) x 120mm (W) x 48mm (H)|
|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|
|Operating Temperature||-20°C to + 70°C|
|Storage Temperature||-40°C to + 85°C|
|Relative Humidity||0 to 80% RH|
1. Which devices can receive engine data from the EMU-1?
The EMU-1 is compatible with all certified NMEA 2000® devices that can display the PGNs the EMU-1 outputs. Always cross-reference the EMU-1 PGN list with the receive list of your monitoring system, the EMU-1 PGN list is in the manual or in the ‘Which PGNs are supported’ FAQ.
The EMU-1 configuration tool allows the alarm active state (i.e. high or low) and the alarm trigger voltage level to be set. The alarms currently supported can be seen in the latest version of the EMU-1 Configuration tool which is available on the Actisense.com website. Note that the supported alarms will be updated regularly so please check to ensure you have the latest version of the EMU-1 Configuration tool. See: http://www.actisense.com/products/nmea-2000/emu1/download-emu-1.html
6. What are the Tacho inputs for?
8. Which engines will the EMU-1 work with?
10. Can I request what I would like the EMU-1 to support?
The Actisense team are working on customer requests for what is supported. If you would like to make a request, please contact Actisense Support. Your requests will be added to the ‘Requests List’ which will be used to prioritise additional features.
11. How many engines can a single EMU-1 support?
In the future, two engine instances will be supported by a single EMU-1. The initial release of the EMU-1 will be limited to supporting one engine instance. For installations with more than one engine a dedicated EMU-1 for each engine will be required.
12. Does the EMU-1 come with a cable harness?
The EMU-1 is supplied without a cable harness. There are pluggable screw terminals on the unit to allow easy connection to senders or the existing gauges.
13. Which PGN's are supported?
14. Why do I need an Actisense NGT-1 NMEA 2000 PC Interface on the bus?
15. What are the EMU-1 mounting options?
Yes the EMU-1 is compatible with both single and dual station senders. Note that the EMU-1 is designed with high impedance inputs so it does not replace existing gauges w.r.t. its resistive load. i.e. A normal dual station installation will have a dual station sender and two gauges.
The EMU-1 connects in parallel to these existing dual gauges, not in place of one of them.
18. What is the temperature range an EMU-1 gauge input can be used to measure?
This depends on what gauge is selected in the configuration tool. From EMU Config Tool v1.007 onwards, most gauge selections allow temperatures to be measured outside of the normal range of the gauge. i.e. selecting a '40 to 120 degrees C' gauge for an input can actually allow the EMU-1 to report temperatures all the way down to and below 0 degrees C. This is because the particular calibration curve of the sender / gauge extends beyond the gauge display. Usually the accuracy of the calibration outside of the normal range is however compromised.20. What baud rate should my NGT-1 be set to?
19. Should the EMU-1 to be powered from the same power supply as the gauges it is measuring?
Yes, it is very important that the EMU-1 is powered from the same power supply as the gauges or else this may result in the measurements not being accurate. The EMU-1 gauge ground and the EMU-1 power ground must be common to prevent ground loops.
20. What baud rate should my NGT-1 be set to?
The NGT-1 should be configured to use 115200 baud on an NMEA 2000 network with a bus load below 50%. For higher bus loads the NGT-1 must be configured to 230400 baud.
21. Is the engine hour log stored in non-volatile memory?
The answer to this is based on the version of firmware which you have in your EMU-1. In version 0.022 and below the Engine hour log is unfortunately reset every time the EMU-1 is power cycled. From version 0.03 onwards this is stored in non-volatile memory.
22. Can I custom configure the EMU-1?