Diehl Hydrus 171A User Manual

Ultraschallwasserzähler
Ultrasonic water meter
Compteur d‘eau à ultrasons
Medidor de água ultrassônico
Ty pe 171A / B
Einbauanleitung
Installation guide
Guide d‘installation
Guia de instalação
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Diehl Hydrus 171A Specifications

General

Maximum Operating Pressure	16 bar
Protection Class	IP68
Battery Life	Up to 16 years
Operating Temperature	+5°C to +55°C
Communication	Wireless M-Bus
Output	M-Bus
Power Supply	Lithium battery
Housing Material	Brass

Summary

Transport and Storage

Installation and Initial Operation

Note on Radio Function

Details on the radio function's activation and potential deactivation using IZAR@MOBILE 2.

Non-Return Valve

Details on mounting the non-return valve accessory for different meter sizes.

Coupling Fitting with Collar

Describes the PE seal and coupling fitting with collar for non-return valve compatibility.

Battery Power Supply

Pin Assignment of Cable

Galvanic Isolation

Warning about avoiding potential tension between ground and meter housing for corrosion prevention.

Pulse Outputs (Open Collector)

Available Pulse Variants

Lists available pulse output configurations like total volume or direction.

Wiring Diagram

Illustrates the electrical connections for pulse outputs.

Due Date Function

Interfaces

Operation

Additional Display Information

Lists configurable display information like temperature, date, time, and volume.

Displays

Error Display

Explains error codes (C1, E1, E4, E5, E7) and their meanings for meter issues.

Alarms

Describes permanent visual indications on the LC display for alarms like reverse volume or low battery.

Disposal

Declaration of Conformity for MID Meters

EU Declaration of Conformity

The official EU declaration stating conformity with relevant Union harmonisation legislation.

References to Harmonised Standards

Lists relevant harmonised standards and other technical specifications for conformity.