M-BUS gateway MB MASTER 250, for heat cost allocators MB-MASTER-250

M-BUS gateway for heat and water meter reading

The M-BUS MB MASTER 250 gateway enables communication with devices using the MBUS EN13757-3 standard, especially BMETERS modules designed for water and heat meters. It is a central device in a remote meter reading system, allowing for efficient data management from a district heating or water supply network. Available in a version supporting up to 250 devices connected to the network, with a maximum cabling length of 1200 meters.

Functionality and application

MB MASTER 250 is designed for simple installation and operation. Network configuration and data reading can be performed directly from the gateway, without the need for physical access to each measuring device. Equipped with a clear display, it allows easy reading of current consumption and historical data – even for the last year (12 monthly readings). This solution is ideal for both professional measurement system installers and building managers who need regular data on media consumption.

Construction and operating parameters

The device is characterized by a solid construction and a high degree of protection IP54, which ensures its reliable operation even in harsh environmental conditions. Power can be supplied from AC (55-250 VAC) or DC (80-350 VDC) mains, increasing installation flexibility. It uses an RS232USB interface to connect to a PC, and can optionally be expanded with Ethernet and GPRS modules, enabling remote data access via the network. The dimensions of the device are 180 x 200 x 95 mm, and the weight is approximately 1700g. The operating temperature range is from -20°C to +55°C, allowing it to be used in a wide range of climates.

The device operates in a temperature range of -20°C to +55°C and has an IP54 protection rating. It supports the MBUS Standard EN 13757-3 transmission protocol and allows connection of up to 250 devices on a cable section up to 1200 meters long. Power can be supplied from AC (55-250 VAC) or DC (80-350 VDC) mains. It displays current consumption and historical data for a period of up to 12 months. The device dimensions are 180 x 200 x 95 mm.

Thanks to the ability to save historical data, MB MASTER 250 facilitates the analysis of media consumption and optimization of building or installation operating costs. The supplied software allows data export to billing programs, which further streamlines the billing process.