A global technology group specializing in smart metering solutions, control systems, and industrial electronics for water, energy, and home appliance markets.
Diehl is a diversified German technology enterprise delivering precision engineering across multiple sectors. Providing intelligent solutions for the utility and industrial markets, Diehl is widely recognized for its Diehl Metering division, which manufactures advanced water meters, thermal energy meters, and gas metering systems like the HYDRUS and IZAR series. The company also includes Diehl Controls, a leading producer of electronic control systems and mechanical timers found in household appliances and HVAC equipment.
With a focus on sustainability and efficient resource management, Diehl products support smart city infrastructure through robust radio reading technology and data management software. Their portfolio guarantees long-term accuracy and reliability, catering to both municipal utilities and industrial applications worldwide.
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Software and configuration tools, such as IZAR@MOBILE and IZAR@SET, can be downloaded from the Download Center in the Support section of the Diehl Metering website.
A blue LED indicates signal reception (RX). A slowly flashing green LED indicates a high battery level, while orange blinking (red and green together) indicates the battery level is between 1 and 8 hours.
The HYDRUS water meter is designed for long-term operation with a battery lifetime of up to 20 years under standard conditions.
Reset procedures vary by device. For many metering modules, specialized software via an optical interface is required to clear errors or reconfigure the unit. Consult the specific product manual or contact technical support.
The IZAR RECEIVER M-Bus is powered via the M-Bus voltage itself (32 V to 42 V) and does not typically require a separate external power adapter, though it draws the equivalent current of approximately 20 standard M-Bus loads.