Description：

The DEIF DU-2/MKIII is a versatile multi‑instrument and power management display unit designed for real‑time monitoring, protection, and control of electrical power systems in industrial, marine, and energy applications. Manufactured by DEIF A/S (Denmark), it combines multi‑parameter measurement, advanced line protection functions, and power management capabilities in a single compact unit. It supports parallel generator management, load sharing adjustments, and comprehensive protection against electrical faults such as over/under voltage, reverse power, overcurrent, and frequency anomalies.

Specification：

Frequently asked questions

Q1: What is the DEIF DU-2/MKIII used for?

A: This multi-instrument is designed for monitoring, measurement, and control in industrial and power generation applications.

Q2: What are the DU-2/MKIII input voltage requirements?

A: It supports a wide power supply range: 100–240 V AC or 110–300 V DC.

Q3: Does it require an auxiliary power supply?

A: Yes, it needs a 24 V DC Class 2 auxiliary supply for certain functions.

Q4: What communication interfaces are supported?

A: The DU-2/MKIII module supports RS‑232, RS‑485, Modbus, Profibus, and Ethernet for flexible connectivity and integration.

Q5: What is the DU-2/MKIII operational temperature range?

A: It can operate reliably between −20 °C and +85 °C.

Product Applications

Power System and Generator Management: As a generator protection device, it is suitable for power generators in ships, maritime industries, and remote areas, ensuring the stable operation of the power system.

Industrial and Manufacturing: Applied in industrial production lines, it is used for precise control of equipment, including motor start-up, stoppage, and speed adjustment.

Building : Used in commercial buildings or medical facilities, it controls the operation of air conditioners, lighting, and other equipment through monitoring sensor signals.

Intelligent Manufacturing: Provides stable operation support for manufacturing machinery that requires high-precision signal processing.

Main technical advantages:

High stability: Specifically designed for harsh industrial electromagnetic environments.

Precise display: Usually equipped with a clear display interface, facilitating operators to read real-time operating parameters.

Customization: Supports configuration of functions based on specific high-frequency application scenarios.

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