Diehl Metering HYDRUS 171A User Manual

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Ultraschallwasserzähler
Ultrasonic Water Meter
Compteur d‘eau à ultrasons
Medidor de Água Ultrassônico
Ty pe 171A / B
Einbau- und Bedienungsanleitung
Installation and User Guide
Instructions de montage et d’utilisation
Guia de Instalação e do Usuário
Diese
Anleitung ist
dem Endkunden
auszuhändigen.
This guide must be given to
the end consumer.
Ce guide doit être donné au
client nal. Este Guia de
Instalação e do Usuário
deve ser entregue ao
cliente nal.

Diehl Metering HYDRUS 171A Specifications

General

Brand	Diehl Metering
Model	HYDRUS 171A
Category	Measuring Instruments
Language	English

Summary

EC Declaration of Conformity

Product Compliance Details

Installation Guide

Important Installation Precautions

Covers seal integrity, compliance standards, water quality, and software usage.

Installation and Initial Operation

Step-by-step Installation Procedure

Details on pipe flushing, meter orientation, air bubble avoidance, and environmental factors.

Non-Return Valve Installation

Handling Precautions During Installation

Warning to secure the meter during installation to prevent damage to the plastic housing.

Power Supply and Cable Connections

Battery Specifications and Limitations

Details battery types, expected lifetime, and the inability to replace or retrofit.

Cable Pin Assignments

Provides a table mapping wire colours to Pulse, L-Bus/pulse, and M-Bus functions.

Wiring Diagram and Due Date Function

Open-Collector Pulse Output Wiring

Illustrates the wiring for pulse outputs and explains resistance requirements.

Due Date Functionality

Pulse Output Specifications

Pulse Output Electrical Parameters

Lists input/output voltages, currents, and timing parameters for pulse outputs.

Configurable Pulse Value Settings

Details pulse variants and value configurations based on nominal flow rate (Q3).

Communication Interfaces and User Interface

Available Communication Interfaces

Display Navigation and Data Access

Display Error and Alarm Messages

Error Display Codes and Descriptions

Details fault codes (C1, E1, E4, E5, E7*, EH) and their corresponding error descriptions.

Alarm Messages and Meanings