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Blue Sea Systems

1832-BSS

M2 DC Ammeter

The BLUE SEA M2 DC ammeter is a digital monitor designed for precise DC amperage monitoring on two marine circuits, offering a measurement range up to 5000A and a self-dimming OLED screen. Its IP66 design ensures robustness suitable for marine environments. Included with the product: the M2 main unit, a 500A digital DC current shunt (model 8255), mounting hardware, connectors, and a screwdriver.

Retail priceBenefit from the professional rate

419,60€

419,60€ ~~466,08€~~

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In stock

Free pickup point shipping over €150 in France
Pickup at Skysat possible

Custom installation

Trust Skysat to install the equipment on board

Request a quote

Installers near you

thanks to our network of approved installers

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Support service

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Technical specifications

Product use	DC current measurement for marine electrical installations
Type de mesure	Current
Sous-type de mesure	Continue
Display type	Digital
Measurement range	-500 to 500 A
Plage de mesure max	5000 A
Unité de mesure	A
Shunt requis	Oui
Valeur du shunt	500 A / 50 mV
Plage de tension d'alimentation	12/24 VDC
Rétroéclairé	Oui
Couleur de la bague	Black
Finition de la façade	Black
Mounting type	Flush-mounted
IP rating	IP66
Sorties d'alarme	80dB sound alarm and isolated MOSFET relay
Weight	1.81 kg
Niveau sonore de l'alarme	80
Nombre de circuits	2
Current type	DC
Support mode jour/nuit	Yes
Display Brightness Adjustment	Auto-dimming
Display Color Type	Monochrome
Display Dimensions Wh Mm	55 x 28
Taille de l'écran	2.4
Display Screen Type	OLED
Technologie d'affichage	OLED
Display Viewing Angle Details	Wide angles
Display Visibility Polarised Glasses	Yes
Galvanic isolation	Yes
Input voltage range	7-70
Model number	1832
Mounting hardware included	Yes
Nominal voltage	12/24VDC
Parent Company Brand	NAVICO GROUP
Consommation électrique maximale	1.00
Power Consumption Min W	0.3
Product category level 1	Merchandise
Product category level 2	NAVICO GROUP
Product category level 3	Electrical
Product Category Level 4	Measuring instruments
Product range	M2
Type de produit	Ammeter
Relay Output Current Max	500
Relay Output Type	Isolated MOSFET
Shunt inclus	Yes
Shunt Programmable	Yes
Weight Unit	kg

Detailed description

Designed for precise monitoring of DC electrical systems, the BLUE SEA M2 DC ammeter (model 1832) is a digital instrument capable of measuring and displaying DC amperage on two independent circuits. This device offers a measurement range from -500 to 500A with the included 500A shunt, and supports programmable shunt ratios for monitoring up to 5000A, ensuring adaptability to various onboard power configurations.

Display and Advanced Features

Equipped with a bright, auto-dimming 55mm x 28mm OLED screen, the M2 DC ammeter ensures optimal readability from wide viewing angles and through polarized lenses. The device integrates a high-current alarm function, adjustable and audible at 80dB, allowing the user to be alerted when predefined thresholds are exceeded. An additional feature is the isolated 500mA MOSFET relay, which enables control of external circuits based on measured values, adding a layer of automation to energy management.

Robust Design and Positioning

The M2 DC ammeter operates on an input voltage of 7 to 70V DC and displays a minimum power consumption of 0.3W, maximum of 1.00W. Its design meets the IP66 waterproofing standard, making it resistant to dust and powerful water jets or heavy seas, which is essential in a marine environment. Compared to traditional ammeters or more basic solutions, the M2 stands out with its ability to monitor two circuits, advanced OLED display, and alarm and relay functions, positioning it as a comprehensive and versatile DC monitoring solution for vessels requiring detailed electrical management. It is part of the BLUE SEA M2 digital monitor range, known for integrating advanced features into a compact format.

Documentation

Type	Nom
	980018840-004-m2monitors_pdf.pdf
	980020410-003-1832qs-7-5-22_pdf.pdf
	980022180-005_m2-dcmeters_080222_pdf.pdf
	m2-mounting_pdf.pdf

Expert opinion

Pol CONIN

Digital Manager

« Accurate and automated DC monitoring for marine systems »

The BLUE SEA M2 DC ammeter is an essential tool for energy management on board, particularly on vessels equipped with multiple battery banks or significant DC consumers. Its ability to monitor two circuits simultaneously provides critical visibility into separate elements such as general consumption and alternator output, or the discharge of a service bank and a starter bank. This feature enables quick identification of imbalances or abnormal consumption, contributing to battery longevity and the reliability of the electrical system.

The main advantage of this ammeter lies in its flexibility with programmable shunt ratios, allowing the instrument to adapt to systems up to 5000A. This makes it relevant for a wide range of vessels, from sailboats to motor yachts. The inclusion of an isolated MOSFET relay is an underrated asset; it can be configured to trigger external alarms or cut secondary circuits in case of overload or excessive consumption, providing an automated safety layer. Installation is simplified by the included 500A shunt, but a solid understanding of ground loops and the shunt's position in the circuit is required to ensure accurate measurements and avoid interference. This monitor is particularly suited for owners seeking detailed and proactive monitoring of their DC system, beyond basic indicators.

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M2 DC Ammeter

419,60€

419,60€ ~~466,08€~~

Frequently Asked Questions

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What are the main functions of the BLUE SEA M2 DC ammeter?

The BLUE SEA M2 DC ammeter is designed for precise monitoring of DC electrical systems. It measures and displays DC amperage on two independent circuits. It also includes a high-current alarm function and an isolated MOSFET relay for controlling external circuits.

What is the maximum measurement range of this ammeter?

With the supplied 500A shunt, the M2 DC ammeter can measure DC current over a range of -500A to 500A. It also supports programmable shunt ratios for monitoring up to 5000A, requiring higher-capacity shunts (not included).

Is the OLED screen of the M2 DC ammeter readable in all conditions?

Yes, the device features a bright, auto-dimming OLED screen. This screen ensures optimal readability from wide viewing angles and is also readable through polarized sunglasses, which is ideal for marine environments.

What are the screen dimensions of the M2 DC ammeter?

The M2 DC ammeter features a 55mm x 28mm OLED screen.

How many circuits can the M2 DC ammeter monitor simultaneously?

The M2 DC ammeter can measure and display DC amperage on two independent circuits at the same time.

What is the power consumption of the M2 DC ammeter?

The M2 DC ammeter has minimal power consumption, ranging from 0.3 watts minimum to 1.00 watts maximum.

Is the M2 DC ammeter water- and dust-resistant?

Yes, its design meets the IP66 ingress protection standard. This means it is resistant to dust and powerful water jets or heavy seas, making it perfectly suited to a marine environment.

How does the high-current alarm on the M2 DC ammeter work?

The ammeter includes a high-current alarm function that is user-adjustable. If the measured current exceeds the user-defined thresholds, an 80 dB audible alarm is triggered to alert the user.

What is the purpose of the integrated MOSFET relay in this ammeter?

The integrated 500 mA isolated MOSFET relay in the M2 DC ammeter allows control of external circuits. It enables activation or deactivation of these circuits based on measured current values, adding automation functionality to energy management.

Is the ammeter supplied with a shunt?

Yes, the M2 DC ammeter is supplied with a 500A shunt, required for current measurement.

Is it possible to use the ammeter with shunts of different ratings?

Yes, the M2 DC ammeter supports programmable shunt ratios. This allows it to be used with shunts of different ratings to monitor currents up to 5000A, beyond the included 500A shunt.

What is the required input voltage range for the M2 DC ammeter?

The M2 DC ammeter operates on an input voltage of 7 to 70V DC.

Is the M2 DC ammeter compatible with 12V and 24V electrical systems?

Yes, the M2 DC ammeter is fully compatible with 12VDC and 24VDC electrical systems. Its wide input voltage range of 7 to 70V DC allows it to operate with these common configurations.

Are there specific considerations for installation in a marine environment?

Yes, its IP66 design makes it resistant to dust and powerful water jets, which is essential in a marine environment. For optimal installation, it is recommended to carefully follow the manufacturer's instructions to ensure proper sealing and secure electrical connections, in order to maximize its durability in this environment.

Can the M2 DC ammeter be used on systems with a voltage higher than 24V?

Yes, the M2 DC ammeter is designed to operate with an input voltage ranging from 7V DC to 70V DC. It is therefore compatible with systems having a voltage higher than 24V DC, provided it remains within this range.

Is this ammeter compatible with battery systems exceeding 500A?

Yes, although the ammeter is supplied with a 500A shunt for measurements up to 500A, it is compatible with battery systems exceeding this capacity. The device supports programmable shunt ratios, allowing monitoring up to 5000A when using a suitable shunt (sold separately for capacities above 500A).