Oceanic SYSTEMS 3125 Nmea 2000 Tank Sender Adaptor Instruction Manual
- June 5, 2024
- Oceanic SYSTEMS
Table of Contents
Oceanic SYSTEMS 3125 Nmea 2000 Tank Sender AdaptorINTRODUCTION
- The NMEA2000® Tank Sender Adaptor allows a standard resistive tank level sender to connect to the NMEA2000® network.
- It is configurable to either the European standard 0 – 180 (full) Ohm and the American standard 240 – 30 (full) Ohm tank level senders.
- It is also easily configured to indicate levels from Fuel, Fresh Water, Waste Water, Live Well, Oil, and Black Water (Sewage) tanks to the NMEA2000® network and is configurable to identify up to 16 tanks of each type on a single network.
- The Tank Sender Adaptor is robustly constructed to the IEC60945 Maritime Navigational and Radiocommunications Equipment Standard to ensure trouble-free operation and high reliability. It is certified to the NMEA2000® network standard version 2 and attaches to the network by a single Micro-C plug. It draws less than 50mA from the network. No additional power cabling is required and the sender is simply connected to the T-adaptor.
SAFETY INSTRUCTIONS
This sender should only be installed by a person competent and experienced in
working with electronic and electrical systems on boats.
Before beginning work, the battery should be disconnected to avoid the risk of
a short circuit, a fire or an explosion. Before drilling any holes to mount
any unit or run any cabling always make sure it is safe to do so.
LOCATION AND INSTALLATION
The Tank Sender Adaptor is water-resistant but NOT waterproof. It is designed to be located in a dry and protected location in the cable run between the NMEA2000® network and the tank level sender. It does not need to be attached to any surface but should be restrained from free movement by means of cable ties to the rest of the cable run or similar.
WIRING
Connect the device, using the Micro Drop Trunk Cable provided, to an available
T-connector on the backbone. Ensure that both ends are mated securely and the
retaining ring has been tightened correctly to ensure the junction is
waterproof. Note that this cable length may be extended to a maximum of 6
meters by using micro drop cables.
The sender cable from the Tank Sender Adaptor (not supplied) should be
connected to the two terminals on the sender. The connection polarity of the
sender wires is unimportant. Either way round will work correctly.
ENSURE THAT NO OTHER CABLES ARE CONNECTED TO THE TANK LEVEL SENDER.
Installation Diagram
SENDER RESISTANCE AND TANK CONTENTS
This adaptor is configured to either the European standard 0-180 or the
American standard 240 – 30 Ohm tank level senders and to the range of
different tank contents by the sender type switch as per the following table.
| Sender Resistance | Tank Type | Switch Position |
|---|
European 0-180
| fuel| 0
fresh water| 1
waste water| 2
live well| 3
oil| 4
black water| 5
invalid| 6
invalid| 7
American 240-30
| fuel| 8
---|---|---
fresh water| 9
waste water| A
live well| B
oil| C
black water| D
invalid| E
invalid| F
TANK NUMBER
The NMEA2000® network protocol supports up to 16 tanks of each contents type.
The adaptor is configured to identify the tank number by means of the Tank
Instance Switch as per the following table.
Tank
Instance
| Switch
Position
---|---
1| 0
2| 1
3| 2
4| 3
5| 4
6| 5
7| 6
8| 7
9| 8
10| 9
11| A
12| B
13| C
14| D
15| E
16| F
OPERATION
- Once the adaptor has been installed there is no normal operator intervention required.
- The unit has a blue LED which flashes every time the sender transmits a signal.
CALIBRATION
The adaptor is already calibrated and requires no further calibration.
OUTPUT MODE CONFIGURATION
The 3125 Tank Sender Adaptor has two output modes to choose from. PERCENTAGE
LEVEL MODE is the default setting and PERCENTAGE VOLUME MODE is the second
option.
PERCENTAGE LEVEL MODE output from 0 – 100% indicates the percentage level of
the fluid in the tank. When the unit is in ‘Level Mode’ the blue LED flashes
ONCE every 2.5 seconds, when a level message has been sent.PERCENTAGE VOLUME
MODE output from 0-100% indicates the actual fluid volume within the tank
taking allowance for the tanks internal shape. When the unit is in ‘Volume
Mode’ the blue LED flashes TWICE rapidly every 2.5 seconds when a volume
message has been sent.
The Volume Mode PGN message is exactly the same as the Level Mode PGN message
which means that the volume can easily be shown on any NMEA2000 display that
accepts Fluid Level PGNs from tank senders. The Volume Mode tank data can be
entered from any Oceanic Systems Display, that is equipped to set up this
data. Please contact us for more information on these displays. It can also be
set up at manufacture if the information is made available at the time of
ordering.
LEVEL MODE can be set with the Tank Instance Switch by setting the switch to
‘C’ and then placing a small magnet on the ‘Magnet Calibration’ position for 5
seconds. The blue LED will light up for 2 seconds to indicate that the unit
registered the magnet. Then return the switch to it’s original position and
the sender will transmit level messages as indicated by the blue LED flashing
ONCE briefly every 2.5 seconds.
VOLUME MODE can be set with the Tank Instance Switch by setting the switch to
‘D’, then placing the magnet on the ‘Magnet Calibration’ position for 5
seconds. The blue LED will light up for 2 seconds to indicate that the unit
registered the magnet. When the switch is returned to it’s original positions
the sender will transmit Volume messages as indicated by the blue LED flashing
rapidly TWICE every 2.5 seconds.
If the Volume Mode Tank Data has NOT been set up and the unit is accidently set to Volume Mode then the data transmitted will actually be the Level Data so the unit remains fully functional.
Oceanic Systems (UK) Ltd
Unit 10 -11 Milton Business Centre, Wick Drive, New Milton, Hampshire, BH25
6RH, United Kingdom
- Tel (UK): +44(0)1425 610022 Fax: +44(0)1425 614794 Web: www.osukl.com
- Tel (USA): (844)898 6462 Email: sales@osukl.com
Copyright © 2021 Oceanic Systems (UK) Ltd. All rights reserved. Our policy is one of continuous product improvement so product specifications are subject to change without notice. Oceanic Systems products are designed to be accurate and reliable. However, they should be used only as aids to vessel monitoring, and not as a replacement for traditional navigation and vessel monitoring techniques. NMEA2000® is a registered trademark of the National Marine Electronics Association.