Promag MF7 MF7-20 RS232 compact flow meter — high accuracy

Promag MF7 MF7-20 is a compact electromagnetic flow meter with RS232 interface designed for precise volumetric flow measurement in industrial and process applications. It combines a small footprint with reliable digital output, making it suitable for installations with limited space where accurate liquid flow monitoring, process control or billing is required.

Advantages

The MF7-20 provides high measurement accuracy and a compact housing (47×16×83 mm) that supports installation in constrained locations. It features an RS232 interface for straightforward data integration and reliable performance in continuous monitoring. The device supports contactless operation up to 5 cm for associated RFID access and includes multiple signal outputs for system connectivity.

Suitable for

• Liquid flow monitoring in industrial processes
• Process control and automation systems
• Billing and custody transfer where compact metering is required
• Installations with limited space or tight mounting conditions

Key specifications

• Type: Electromagnetic flow meter, compact model
• Model: Promag MF7 MF7-20
• Interfaces: RS232, Wiegand, MSR ABA Track 2
• RFID: 13.56 MHz (ISO14443, MIFARE, DESFire), contactless up to 5 cm, open cable end
• Dimensions (WxHxD): 47 × 16 × 83 mm
• MPN: MF7-20
• EAN: 5711045816062

How to use

Mount the MF7-20 in the process line according to site pipework constraints, ensuring the compact housing fits the available space. Connect power and the RS232 output for data logging or integration with control systems. If RFID functionality is used, route the open cable end and position tags or cards within the contactless range (up to 5 cm) following ISO14443 compatibility. Configure Wiegand or MSR ABA Track 2 outputs as required by the host system.

Recommendations

For reliable measurements, follow manufacturer installation instructions, ensure proper grounding and avoid strong electromagnetic interference near the sensor. Use compatible RFID cards (MIFARE/DESFire) and verify RS232 communication settings with the receiving equipment.