Installation Guide

Connector Pin Assignment System Overview
M2 OLED
Digital Monitor
QuickStart Installation Guide
360 Panel Mounting Kit PN 1525 sold separately
Components Included
1841 Temperature Monitor
www.bluesea.com/products/1841
425 Sequoia Drive
Bellingham, WA 98226 USA
www.bluesea.com
p 360.738.8230
[e-mail]
980023490 Rev.001
If you are not knowledgeable about electrical systems, have an
electrical professional install this unit. The diagrams in these
instructions pertain to the installation of the unit and not to the
overall wiring of the vessel.
Verify that no other DC or AC sources are connected to the vessel’s
wiring before installing the unit.
WARNING
The back of the unit is not waterproof. Do not install where
the back of the monitor is exposed to water.
CAUTION
WARNING
The WARNING symbol refers to possible injury to the user or
significant damage to the monitor if the user does not follow
the procedures.
CAUTION
The CAUTION symbol refers to restrictions and rules with
regard to preventing damage.
The M2 OLED Digital Meters come with a 5 year manufacturer’s
warranty. This means the meter is warranted to be free from defects
in materials or workmanship for 5 years from the date of first
purchase. The warranty is limited solely to the cost of repair or
replacement of the M2 Meter product. Costs associated with labor
or shipping of the defective parts are not covered.
Blue Sea Systems cannot accept liability for damage due to the
misuse of the M2 Meter.
Warranty
Connector Pin Assignment Table
8 Pin Connector*
Function
1 Required Connection
2 Required Connection
3
4
5
6
7
8
DC Negative
DC Supply
Relay DC–Out to Load
Relay DC +
Temperature 1
Temperature 2
Temperature 3
Temperature 4
USB Micro USB Port
M2 Head Unit Surface Mount Gasket
Mounting Ring
Surface Mount Bezel
and Seal
Mounting Nut
Flat Mount Bezel
Screwdriver
(retail package only)
Connector
Bezel
Mount
Footer
Header
Carrier
Mount
#6-32 x 1/4"
Flat Head
Machine Screws
(4X)
#6-32 x 3/8"
Flat Head
Machine Screws
(4X)
Surface Mount Cover
Flat Mount Clamp
4x 1821
Temperature Sensors
1841 Temperature Monitor Connections
Panel
Frame
Screen Menu Functions
Press any button to bring up the menu.
1. After start-up, press any button to access the menu.
2. Press the UP or DOWN arrow buttons to scroll through menu windows.
3. To set alarms and for more detailed information, see the online manual
at www.bluesea.com/products/1841
M2 Meter Navigation
*The 8 pin low voltage connector supports wire sizes from 16-26 AWG
Relay
(7713 12V)
(7717 24V)
Alarm (1070)
LED
(8033 Amber)
(8171 Red)
(8172 Green)
OROR
12345678
Battery
For the online manual that includes other configurations,
go to www.bluesea.com/products/1841
Temp 1 Temp 2 Temp 3 Temp 4
Temperature Sensor Connections 1821
12345678
1821 Temperature Sensor
Note: The negative feed of all of the temperature
sensors should terminate as close as possible to pin 1.
Use Blue Sea Systems’ PN 2304 Mini Bus with a short
18 AWG guage wire from pin 1 to the Mini Bus.