Blue Sea Systems 1850 Instruction Manual

Connector Pin Assignment System Overview
Components Included
bluesea.com/products/1850
PN 8255 Shunt
(1X)
A. 2 Pin Connector* 3.5mm Function
1
2
1
2
1Required Connection
2 Required Connection
Battery 1-
Battery 1+
AC Voltage - Neutral
AC Voltage - Hot
DC Negative
DC Supply/Battery 2+
3Tank/Bilge 1
B. 2 Pin Connector** 5mm
C. 8 Pin Connector* 3.5mm
4
5
6
7
8
USB
M5
Tank/Bilge 2
DC Shunt 1–
DC Shunt 1+
AC Current Transformer – ***
AC Current Transformer + ***
Micro - USB
NMEA 2000
AC Current Transformer
8256 (1X)
M2 Head Unit Surface Mount Gasket
Mounting Ring
Surface Mount Bezel
and Seal
Mounting Nut
Flat Mount Bezel
Screwdriver
(retail package only)
Connectors
Surface Mount Cover Flat Mount Clamp
360 Panel Mounting Kit 1525 (sold separately)
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)
Panel
Frame
* Supports wire sizes from 16 to 26 AWG
** Supports wire sizes from 12 to 24 AWG
*** Caution - Incorrect connections may damage the monitor
The back of the unit is not waterproof. Do not install where the
back of the monitor is exposed to water.
CAUTION
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 all AC sources are disconnected before connecting or
disconnecting the Current Transformer (CT). Failure to do so will
generate lethal voltages on the CT.
If an inverter is installed on the vessel, its power leads must be
disconnected at the battery before the unit is installed. Many inverters
have a “sleep mode” in which their voltage potential may not be
detectable with measuring equipment.
If an AC generator is installed on the vessel, it must be stopped and
rendered inoperable before the unit is installed.
Verify that no other DC or AC sources are connected to the vessel’s
wiring before installing the unit.
If the unit must be removed, connect the CT leads together before
restoring power to the AC system.
WARNING
A B
AC NEUTRAL
AC HOT
Battery 1
Battery 2
Bilge
Tank
OR
NMEA
2000
To loads From Supply
Shunt
NOTE: To set alarms and for more detailed information,
see the online manual at bluesea.com/products/1850
C
M5
USB
2 Bilges or
2 Tanks or
1 Bilge &
1 Tank
12
980033840 Rev.002
bluesea.com
Basic Meter Setup
Installation Steps
Click here for more information at
bluesea.com/products/1850
M2 OLED
Digital Monitor
QuickStart Installation Guide
1850 Vessel Systems Monitor
Ultrasonic 3 Wire Senders 1810 and 1811
BLACK WIRE
Resistive 2 Wire Sender
USB
PIN 3 OR 4
Float Switch Connections
USB
PIN 3 OR 4
PINK WIRE
BLACK WIRE
PURPLE WIRE
USB
PIN 3 OR 4
OPTIONAL
SWITCH
SPDT
ON-OFF-ON
OPTIONAL SECOND TANK
- WORKS BEST IF BOTH
TANKS ARE THE SAME
SIZE AND SHAPE
8283
PINK WIRE
12345678
12345678
5A Fuse
5A Fuse
5A Fuse
12345678
1 2
5A Fuse
BusBar
1. Choose meter mounting style and location
2. Turn of all power, both AC and DC.
3. Prepare mounting hole using cutout templates
4. Using wiring diagram:
• Install provided 500A/50mV Shunt for DC
current and SoC monitoring
• Install provided 150A/50mA Current
Transformer for AC current monitoring.
• Make all connections to the meter’s connector.
Do not put fuses into fuse holders at this time.
5. Plug wired terminal block into the meter
6. Insert fuses into fuse holders, making the fuse to
Pin C2 (DC Supply/Battery 2+) Last.
7. Turn on Power.
1. Ensure Battery 1 (House Battery) is fully charged
2. Have Battery 1 information ready
a. Battery Bank Nominal Voltage
b. Battery Type
c. Battery Capacity
3. Navigate to DC 1 Setup by going Menu>Setup>
DC1 Setup.
4. Enter information for Battery 1 from step 2
5. Select Set SoC to Full. This reset the meter SoC
to 99%.
6. AC Monitoring requires no setup if using the
included 150A/50mA CT.
7. For instructions on setting Alarms, calibrating
tank senders, or setting up Bilge monitoring see
the full instructions found on our website.
bluesea.com/products/1850
980033840-002-1850QS_072722.pdf 1 7/27/22 8:29 AM

Flat Mount
Surface Mount
Mounting TemplatesMounting Options
Mounting
Substrate
Mounting
Substrate
Clamp
Flat
Mount
Bezel
M2
Head
Unit
M2
Head
Unit
Surface
Mount
Bezel
and Seal
Mounting
Ring and Nut
Surface
Mount
Gasket
Mounting
Ring and Nut
Surface
Mount
Cover
NOTE: During
installation use
cover to align the
bezel and gasket
Network Configuration
With CZone®
Select: Menu->Setup->Network.
Two settings must be configured:
1. Dip Switch - Set this value to the same value in the
CZone configuration too.
2. CZone - Set to enable. The meter will reboot.
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
3.40" (86.5mm)
3.46" (87.9mm)
Ø2.125"
(54mm)
Cut Line
Cut Line
3.34" (84.8mm)
3.03" (77mm)
3.03" (77mm)
3.34" (84.8mm)
Flat mount bezel edge
Flat Mount
Surface Mount
Without CZone®
For non-CZone systems, the user will have to enter
NMEA 2000 instance information for DC1, DC2, AC1,
and the Tanks (if used). The user should configure
the instance information before connecting to the
N2K network to prevent conflicts.
For more information regarding setting up the N2K
connection, see the full instructions found at our
website: bluesea.com/products/1850.
980033840-002-1850QS_072722.pdf 2 7/27/22 8:29 AM