User Manual

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M2 OLED Temperature Monitor Instructions

PN 1841

Installation Checklist

• Check for components included

• Read Warning and Cautions

• Read page 3 for mounting instructions

• Read System Overview, Mounting Considerations, Detailed Wiring,

and Sensing Description

• Follow Initial System Setup instructions

• Congure Displays

• Congure Alarms

• Congure Relays

Specications

Display Size 55mm x 28mm

Power Supply 7V–70V DC

Power Consumption 0.3W–1.0W*

Sensors Blue Sea Systems PN (1821)

Sensor Range -40°F – 250°F (-40°C –120°C)

Sensor Resolution 1%

Temp Alarms 80dB

External Relay 0.5A DC

* Variable with voltage, display intensity, and sleep mode

Regulatory

Monitor face is IP66 – protected against powerful water jets

when installed according to instructions

Warning and Caution Symbols

WARNING: The symbol refers to possible injury to the user or

signicant damage to the meter if the user does not follow the procedures.

CAUTION: The symbol refers to restrictions and rules with regard

to preventing damage to the meter.

WARNING

• 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 M2 Digital Meters and not

to the overall wiring of the vessel.

• If an inverter is installed on the vessel, its power leads must be

disconnected at the battery before the meter is installed.

• If an AC generator is installed on the vessel, it must be stopped

and rendered inoperable before the meter is installed.

• Verify that no other DC or AC sources are connected to the vessel’s

wiring before installing the meter.

CAUTION

• The back of the unit is not waterproof. Do not install where the back

of the meter is exposed to water.

Components Included

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

Panel

Frame

4x 1821

Temperature Sensors

360 Panel Mounting Kit (PN 1525 sold separately)

Summary of content (15 pages)

PAGE 1
M2 OLED Temperature Monitor Instructions PN 1841 Installation Checklist • • • • • • • • Check for components included Read Warning and Cautions Read page 3 for mounting instructions Read System Overview, Mounting Considerations, Detailed Wiring, and Sensing Description Follow Initial System Setup instructions Configure Displays Configure Alarms Configure Relays Components Included M2 Head Unit Surface Mount Bezel and Seal Surface Mount Gasket Surface Mount Cover Flat Mount Bezel Flat Mount Clamp Mo
PAGE 2
Installation 1. Make all connections to the meter’s terminal block before connecting the terminal block to the unit. Keep hands away from the terminal block when applying power to the meter. 2. As the final DC connection, insert a fuse into the in-line fuse holder on the wire to the positive (+) battery terminal. Mounting Templates Surface Mount Ø2.125" (54mm) 3.46" (87.9mm) 3.00" (76.2mm) 3.34" (84.8mm) Flat Mount 3.34" (84.8mm) 3.00" (76.2mm) 3.40" (86.
PAGE 3
Flat Mount 360 Panel Mount PN 1525 STEP 1 Use 1/4" Mounting Screws Mounting Ring and Nut 360 Panel Mount Carrier Clamp Panel Frame M2 Head Unit Flat Mount Bezel Mounting Substrate STEP 2 Surface Mount Snap header and footer into mounting clips and post. Snap the mounting bezel into place with the flat edge up.
PAGE 4
Temperature Functions (1841) Monitor up to four temperatures. Provides High/Low level alarms for each channel. Connections IMPORTANT! The Sensing Description section of this manual gives important details to the location of sensors in the AC and DC electrical systems of the boat. Improper location and configuration of sensors can result in erroneous readings and possible damage to components.
PAGE 5
Detailed Wiring 1841 Temperature Monitor Temp 1 Temp 2 Temp 3 Temp 4 1 2 3 4 5 6 7 8 Battery Relay (7713 12V) (7717 24V) OR Alarm (1070) OR LED (8033 Amber) (8171 Red) (8172 Green) 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.
PAGE 6
M2 Relay Connections M2 Meters contains an internal MOSFET relay that can drive external DC loads up to 0.5A. The input is protected with a thermally activated auto-resetting fuse that will protect against shorts. In addition, an inline fuse rated at 5A should be used to protect against shorts. In typical applications, a power source is connected to the Relay+ pin and a load is connected to the Relay Out to Load connection.
PAGE 7
External Alarm (1070 Floyd Bell Turbo) The Relay+ terminal can support an external audible alarm. Such as the Floyd Bell Turbo Alarm (1070). External Alarm Supply 5 to 30V DC 1 2 3 4 5 6 7 8 + Red - Silver 1070 External Relay If you need to switch more than 0.5 A, you can use an external relay such as PN 7713, 12V or PN 7717, 24V Remote Battery Switch. Connect the Relay+ terminal to the red control wire. Activating the internal relay will also activate PN 7713.
PAGE 8
Getting Started Example Screens From PN 1841 Temperature Meter When an M2 Meter is initially powered up, it will display the Blue Sea Systems Logo, its serial number and its Software revision. After a couple of seconds, the unit will display a high-level System Summary screen. Pressing any button will display a temporary pop-up menu. Select an option by pressing the button beneath it. The pop-up menu will disappear after the first button is pressed. The menu system is a two dimensional matrix.
PAGE 9
Other Display Indications The dotted lines in T4 indicate the Hi and Lo Alarm Levels. The Hi and Lo Relay levels are not shown. If Display MinMax is on, then split triangles on the right side of the each graph indicate the minimum and maximum levels. A single triangle indicates that the minimum and maximum levels are close to each other. The following temperature error messages may be displayed under certain error conditions. HI -- The temperature is greater than 275°F (135°C).
PAGE 10
Viewing Alarms Status For any active alarm, the parameter will flash if it is displayed. To view a complete list of active alarms, press Menu>Setup>Alarm Setup. Any active alarm will flash. You may have to scroll through the menu to see all of the alarms. Relay Setup & Control M2 Meters provide an option to control an external relay. The M2 can trigger the relay based on high or low temperature levels. These relay options can be set from the Relay Setup menu. To get there, first navigate to the Setup menu.
PAGE 11
Setting Input Thresholds Settings for each channel’s high and low temperature thresholds are provided. The connected relay’s normal operating state will toggle (change state) if these thresholds are met. For both high and low thresholds, the activation and deactivation levels are different to prevent the relay from rapidly toggling (cycling on and off). Each channel has Hi ON and Hi OFF settings and Lo ON and Lo OFF settings.
PAGE 12
Clearing Relay Notification If the Notification option is set to ON then any time the relay is opened (Normally Off) or closed (Normally On). A message will be displayed on the main screen. Pressing a key will clear this notification. If Silence is set to ON then the relay will be opened (Normally Off) or closed (Normally On). Viewing Relay Status For any active alarm, the parameter will flash if it is displayed. To view a complete list of active alarms, press Menu>Setup>Relay Setup.
PAGE 13
Temperature Channel Setup Changing System Labels The M2 allows the user to change the labels that are displayed above each channel. Each channel can have a maximum of 16 characters however in the summary screens only the first 11 or 12 characters of the channel label are displayed. Changing Label Names To change the name of a temperature channel, follow the instructions below: 1. Navigate to the setup menu for the desired temperature channel. Menu->Setup->Temp. 1 Setup 2.
PAGE 14
Version Info The Version Info option in the Setup menu displays the product name, serial number, and software version. This information will be displayed on a screen after scrolling to Version Info and pressing Select. Pressing any button will return to the Setup menu. Factory Reset The Factory Reset option in the Setup menu allows the user to restore the meter’s factory default settings. First scroll to Factory Reset and press Select. Text will appear asking to confirm or cancel the reset request.
PAGE 15
425 Sequoia Drive Bellingham, WA 98226 USA p 360.738.8230 p 800.222.7617 USA and Canada Customer Service f 360.734.4195 conductor@bluesea.com www.bluesea.com 980023530 Rev.