LXNAV LX8000 User manual

Page 1 of 14
Engine Monitoring Unit
Version 1.00
LXNAV d.o.o. • Kidričeva 24, 3000 Celje, Slovenia • tel [phone] fax [phone]
[email protected] • marine.lxnav.com

Page 2 of 14
1Important Notices 3
1.1 Limited Warranty 3
1.2 Packing Lists 4
2Technical Data 5
2.1 Inputs 5
2.1.1 Analog inputs 1-4 5
2.1.2 Tach inputs (marked Frequency input 1-2) 5
2.2 Outputs 5
3Engine monitor connectors 7
3.1 NMEA2000 M12 connector pinout 7
3.2 Sensor connectors pinout 7
3.3 Connector kit 8
3.4 Crimping and inserting wires 9
3.5 Sensor connection –resistive type sensors 13
3.6 Sensor connection –voltage output type sensors 13
4Revision history 14

Page 3 of 14
1Important Notices
Information in this document is subject to change without notice. LXNAV reserves the right
to change or improve their products and to make changes in the content of this material
without obligation to notify any person or organization of such changes or improvements.
A Yellow triangle is shown for parts of the manual which should be read very
carefully and are important when operating the E500/E700.
Notes with a red triangle describe procedures which are critical and may result in
loss of data or any other critical situation.
A bulb icon is shown when a useful hint is provided to the reader.
1.1 Limited Warranty
This Engine Monitoring Unit product is warranted to be free from defects in materials or
workmanship for two years from the date of purchase. Within this period, LXNAV will, at its
sole option, repair or replace any components that fail in normal use. Such repairs or
replacement will be made at no charge to the customer for parts and labour, provided that
the customer pays for shipping costs. This warranty does not cover failures due to abuse,
misuse, accident, or unauthorized alterations or repairs.
THE WARRANTIES AND REMEDIES CONTAINED HEREIN ARE EXCLUSIVE AND IN LIEU OF
ALL OTHER WARRANTIES EXPRESSED OR IMPLIED OR STATUTORY, INCLUDING ANY
LIABILITY ARISING UNDER ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR A
PARTICULAR PURPOSE, STATUTORY OR OTHERWISE. THIS WARRANTY GIVES YOU
SPECIFIC LEGAL RIGHTS, WHICH MAY VARY FROM STATE TO STATE.
IN NO EVENT SHALL LXNAV BE LIABLE FOR ANY INCIDENTAL, SPECIAL, INDIRECT OR
CONSEQUENTIAL DAMAGES, WHETHER RESULTING FROM THE USE, MISUSE, OR
INABILITY TO USE THIS PRODUCT OR FROM DEFECTS IN THE PRODUCT.
Some states do not allow the exclusion of incidental or consequential damages, so the above
limitations may not apply to you. LXNAV retains the exclusive right to repair or replace the
unit or software, or to offer a full refund of the purchase price, at its sole discretion. SUCH
REMEDY SHALL BE YOUR SOLE AND EXCLUSIVE REMEDY FOR ANY BREACH OF WARRANTY.
To obtain warranty service, contacts your local LXNAV dealer or contact LXNAV directly.
June 2018 © 2018 LXNAV. All rights reserved.

Page 4 of 14
1.2 Packing Lists
Engine monitoring unit
Installation and user’s manual
Female connector kit
Male connector kit

Page 5 of 14
2Technical Data
2.1 Inputs
2.1.1 Analog inputs 1-4
Engine monitoring unit features 4 fully configurable analog inputs for:
-Voltage sensors: 0-5V
-Resistive: European, ABYC (US) and Asian standards
-Current output sensor 4-20mA
All of the analog inputs have an internal switchable pullup resistor to 5V, thereby relieving
the user of manual resistor installation.
Name
Min
Nom
Max
Unit
Input impedance (each input)
/
1M
/
Ω
Voltage range
0.1
4.9
V
Absolute maximum voltage input
18
V
Pullup resistor resistance
510
Ω
Voltage resolution
43.58
mV
Table 1: Analog input electrical characteristics
2.1.2 Tach inputs (marked Frequency input 1-2)
Engine monitoring unit features 2 configurable tachometer inputs for RPM or Fuel Flow
measurement.
Name
Min
Nom
Max
Unit
Input impedance (each input)
/
51k
/
Ω
Minimum threshold voltage
4.2
V
Absolute maximum voltage input
36
V
Frequency range
1k
Hz
Table 2: Tach inputs electrical characteristics
2.2 Outputs
Engine monitor unit also features two independent power supply outputs for powering
various sensors:
-1x 5V switchable output
-1x 12V switchable output
Both output have resettable fuse protection again overcurrent and short-circuit faults.
Name
Min
Nom
Max
Unit
Voltage output for 5V output
4.9
5.0
5.1
V
Voltage output for 12V output
Same as voltage present
on NMEA2000 connector
V
Holding current for resettable fuse for both
outputs
100
mA
Trip current for resettable fuse for both outputs
250
mA
Table 3: Power outputs electrical characteristics

Page 6 of 14

Page 7 of 14
3Engine monitor connectors
3.1 NMEA2000 M12 connector pinout
CAN_L
CAN_H
12V
Ground
NMEA2000 pinout
Male connector (pins)
12V
CAN_L
Ground
Shield
CAN_H
NMEA2000 pinout
Female connector (sockets)
2 1
4
3
5
1 2
3
4
5
Figure 1: NMEA2000 Male connector pinout
3.2 Sensor connectors pinout
As shown on the picture below, the pinout is shown from the unit side (not from the included
connector kit side). Each input/output has a corresponding ground connection for the sensor
itself.
Ground for 12V Power
Ground for Frequency input 1
Ground for Frequency input 2
Frequency input 2
Frequency input 1
12V Power
5V Power
Analog input 1
Power connector
Analog input 2
Analog input 3
Analog input 4
Ground for Analog input 4
Ground for Analog input 3
Ground for Analog input 2
Ground for Analog input 1
Signal connector

Page 8 of 14
3.3 Connector kit
This chapter guides you through crimping the correct wires into the EMU connectors
provided. Tools needed:
-Crimping pliers (recommended Engineer PA-01)
-Wire stripper
Figure 2: Sensor connection kit
Figure 2 shows the contents of the sensor connection kit. It contains:
-Male and female connector housing
-8 crimp contacts for each connector (blade and socket)
-Watertight grommets
-Endcap for both of the connectors
Signal connector kit
Power connector kit

Page 9 of 14
3.4 Crimping and inserting wires
Step 1: Strip wires. Stripped length should be somewhere around 5mm
Step 2: Insert the crimp contact into the crimping pliers (die head 0.5mm) and gently grip
the contact so that it stays put. Note that the pliers must only “grab” the grip shell on the
crimp contact.
Step 3: Insert the wire into the crimp contact until you only see the insulation. Now apply
pressure to the pliers all the way down.

Page 10 of 14
The result should look like the picture below
Step 5: Now the crimp the insulating shell (see picture above –in the green box). Insert the
crimped wire into the INS portion (or >2.5mm die size of a crimping plier) and apply
pressure to the crimping tool.
The result should look something like the picture below

Page 11 of 14
Step 6: Pull the watertight grommet over the crimped contact like shown on the picture
below:
Step 7: Insert the crimped contact with the watertight grommet into the appropriate
connector housing.

Page 12 of 14
Make sure that you hear a click sound and the grommet slides all the way inside (see picture
below).
Repeat Step 1 through Step 7 until all of the connection are wired.
Final step: Insert the end cap into the connector so that it lines up with the outer shell.

Page 13 of 14
3.5 Sensor connection –resistive type sensors
Analog input 2
Analog input 3
Analog input 4
Ground for Analog input 4
Ground for Analog input 3
Ground for Analog input 2
Ground for Analog input 1
Signal connector
Resistive type sensor
Figure 3: Resistive type sensor connection
Note: Use adjacent ground connections for sensor pairs. There are pins for exactly 4 sensor
(8 wires).
3.6 Sensor connection –voltage output type sensors
Ground for 12V Power
Ground for Frequency input 1
Ground for Frequency input 2
Frequency input 2
Frequency input 1
12V Power
5V Power
Analog input 1
Power connector
Analog input 2
Analog input 3
Analog input 4
Ground for Analog input 4
Ground for Analog input 3
Ground for Analog input 2
Ground for Analog input 1
Signal connector
Voltage output type sensor
Figure 4: Voltage output type sensor connection

Page 14 of 14
4Revision history
Date
Version
Description
June 2019
1.0
Initial release of this manual