Diehl Hydrus 171A - English; Installation Guide

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1. Installation guide
This guide is intended for trained specialised personnel. For this reason no
basic working steps are included.
The seal on the meter (see g. IV, pos. 18) must not be dam-
aged!
A damaged seal will result in immediate invalidation of the fac-
tory warranty and calibration/conformity.
The meter must be installed in compliance with the requirements
of EN 14151 and the EC Type Examination Certicate!
The standards for drinking water installations (e.g. DIN 1988)
must be observed!
Medium: Water without additives
The IZAR@MOBILE 2 software is used for readout/parametrization and is
available online at www.diehl.com/metering.
Table of content
1. Installation guide .............................................................14
2. Transport and storage ......................................................15
3. Installation / Initial operation .........................................15
4. Battery power supply (one or two batteries) ...................17
5. Pin assignment of cable ...................................................17
6. Pulse outputs (open collector) .........................................17
7. Due date function .............................................................19
8. Interfaces .........................................................................19
9. Operation .........................................................................19
10. Displays ............................................................................22
11. Disposal ............................................................................23
12. Declaration of conformity for MID meters .......................23
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