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Mastervolt

77030300

MasterBus gauge interface

The Masterbus gauge interface from Mastervolt (ref. 77030300) is the acquisition module for monitoring tank levels (fuel, water) on the MasterBus network. Compatible with resistive sensors (0-300 ohms), current (0/4-20 mA), and voltage (0-70 V), it allows manual or automatic calibration and includes configurable alarms. Supplied with a 1 m MasterBus cable, terminator, and 5-point screw terminal block.

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186,14€

186,14€ ~~229,08€~~

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Free pickup point from €150 in France
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Technical specifications

Operating voltage	0-63
Max power consumption	0.28
Typical power consumption	0.28
Product width	66
Product height	78
Product depth	32
IP rating	IP21
Bus compatibility	MasterBus
Wired network	MasterBus
Mounting type	DIN rail
Certifications	CE
Supported fluid types	Fuel, fresh water, gray water, black water
Number of supported tanks	1
Sensor connection type	5-position screw terminal block
Sensor resistance compatibility	0-300
Configurable parameters	Fluid type, Volume, High and low alarm thresholds, Sensor type, Damping, Calibration
Configuration method	MasterAdjust software
Connector type	MasterBus connector
Data output	Tank level and volume
Sensor supply voltage	0-63
Calibration methods	Min/Max, Manual
Communication LED indicator	Yes
Number of configurable events	63
Damping levels	Light, Medium, Heavy
DIN rail mounting compatible	Yes
High-level alarm range	5-100
Languages supported	English, Dutch, German, French, Spanish, Italian, Norwegian, Swedish, Finnish, Danish
Low-level alarm range	0-95
MasterAdjust software required	Yes
Included MasterBus cable length	1
MasterBus terminator included	Yes
MasterBus USB interface required	Yes
Depth (mm)	32
Screw terminal included	Yes
Sensor current compatibility	0 (4)-20
Sensor power modes	Stop, Run, Intelligent
Sensor voltage compatibility	0-70
Smart powering support	Yes
Supported tank types	Fuel, fresh water, gray water, black water, drains on use, fills on use
Tank volume range	0-65535
Weight with terminal	90

Detailed description

The MasterBus gauge interface from Mastervolt is the acquisition module dedicated to monitoring tank levels on board. It bridges a level sensor (resistive, current, or voltage) and the MasterBus network, allowing you to view and manage fuel, fresh water, gray water, or black water levels on a compatible display (Easy View 5, Zeus, etc.) or via the MasterAdjust software. Unlike a dedicated display such as the MasterView Easy View 5, which includes a screen, this interface is a pure processing module designed to be integrated into a discreet technical cabinet.

Compatibility and advanced configuration

The interface accepts three types of sensors: resistive (0-300 ohms), current (0/4-20 mA), and voltage (0-70 V). Configuration is performed via the free MasterAdjust software. Two calibration modes are available: the Min/Max mode for linear tanks, and the manual mode with up to 20 calibration points for non-linear tanks. It includes adjustable damping (filtering) on three levels (light, medium, heavy) to stabilize the display against boat movements. High and low alarm thresholds are configurable from 0 to 100%.

Network features and event control

The MasterBus gauge interface can trigger up to 63 events on the MasterBus network. For example, a low fresh water level can shut off the water pump, or a high gray water level can trigger an alarm. The Smart Powering function reduces power consumption to 280 mW by powering the sensor only when necessary. The interface comes with a 1-meter MasterBus cable and a terminator, and can be mounted on a DIN rail or flat surface using two mounting holes. Its IP21 protection rating makes it suitable for indoor installation in a dry electrical panel.

Documentation

Type	Nom
	EN - Manuel d'utilisation et d'installation - Interface de jauge Masterbus
	EN - Guide de calibration - Interface de jauge Masterbus
	EN - Manuel d'utilisation et d'installation - Interface de jauge Masterbus

Expert opinion

Pol CONIN

Digital Manager

« A versatile data acquisition module for fluid management »

The Masterbus gauge interface is a reliable and discreet acquisition module for integrating fluid management into a Mastervolt network. Its versatility with three sensor types (resistive, current, voltage) and its 20-point manual calibration make it suitable for non-linear tanks, a point often overlooked. The Smart Powering function is a real advantage for reducing standby consumption, but it requires a responsive sensor (reliable signal in under 100 ms). For complex installations with multiple tanks, event integration (up to 63 events) enables advanced automated management, such as pump shutdown in case of low level. It is a robust module, but its IP21 rating limits it to a dry electrical panel.

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MasterBus gauge interface

186,14€

186,14€ ~~229,08€~~

Frequently Asked Questions

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What is the Masterbus Mastervolt gauge interface used for?

The Masterbus Mastervolt gauge interface is a dedicated data acquisition module for monitoring tank levels on board. It bridges a level sensor (resistive, current, or voltage) and the MasterBus network, enabling visualization and management of fuel, fresh water, gray water, or black water levels on a compatible display or via the MasterAdjust software.

Can the Masterbus gauge interface trigger automatic actions?

Yes, the Masterbus gauge interface can trigger up to 63 events on the MasterBus network. For example, a low freshwater level can be configured to cut the water pump, or a high gray water level to activate an alarm.

What is the electrical consumption of the Masterbus gauge interface?

The interface's power consumption is 280 mW. It also features Smart Powering, which reduces consumption by powering the sensor only when necessary.

What are the physical dimensions and weight of the Masterbus gauge interface?

The interface dimensions are 66 x 78 x 32 mm. Its weight is approximately 90 grams, including the screw terminal block.

Which languages are available for interface configuration?

The Masterbus gauge interface can be configured in multiple languages, including English, Dutch, German, French, Spanish, Italian, Norwegian, Swedish, Finnish, and Danish.

What is the IP protection rating of the Masterbus gauge interface?

The Masterbus gauge interface has an IP21 protection rating.

How to physically install the Masterbus gauge interface?

The interface can be mounted on any flat surface. It is supplied with a DIN rail mounting option (30 mm) or can be secured directly using two mounting holes.

Which components are included with the interface for installation?

The Masterbus gauge interface comes with the following items for installation:

A screw terminal block (5 positions, pluggable) A MasterBus terminator A 1-meter MasterBus cable A user manual

How to connect the interface to the MasterBus network?

To connect the interface to the MasterBus network, insert the supplied MasterBus cable (1 meter) into the interface's MasterBus connector. Ensure the MasterBus network is properly terminated at both ends with a terminator.

Is an external power supply required for sensors connected to the interface?

The interface can power sensors if required. For powered sensors, the battery cables (positive and negative) must be connected to terminals 1 and 2 of the interface. Battery voltage must be between 0 and 63 V.

How to check if MasterBus communication is working correctly after installation?

A flashing LED (LED 6) on the interface indicates that the MasterBus communication is established and functioning correctly.

Which software is required to configure the Masterbus gauge interface?

The interface is configured using the free MasterAdjust software. This software must be run on a Windows PC (laptop or notebook) and requires a MasterBus USB interface for the connection.

Is the interface compatible with VDO or BEP Marine sensors?

Yes, the interface is compatible with VDO sensors of resistive or capacitive type, as well as with BEP Marine ultrasonic sensors. The technical documentation provides guidelines for calibrating these sensor types.

Which types of fluids can be monitored by the interface?

The interface can monitor the levels of various fluids, including fuel, fresh water, grey water, and black water. The fluid type can be configured in the MasterAdjust software.

What is the warranty duration for the Masterbus gauge interface?

Mastervolt offers a two-year product warranty on the Masterbus gauge interface, provided the product is installed and used in accordance with the instructions provided in the manual.

How to calibrate the interface for a linear or non-linear tank?

For a linear tank, you can use the Min/Max calibration method in MasterAdjust by simply entering the empty and full levels. For a non-linear tank, manual calibration is available, allowing you to input up to 20 calibration points for optimal accuracy.

Can alarm thresholds be set for tank levels?

Yes, high and low alarm thresholds can be set from 0 to 100% of the tank volume. These alarms can then be used as a source to trigger specific events on the MasterBus network.