Section 1 General Description; Introduction; Using This Manual - Hach AquaTrend 51200 Instrument Manual

Section 1

1.1 Introduction

1.2 Using This Manual

51350-18 general description.fm
General Description
Read this section of the manual to determine the appropriate system
configuration for your operation, and to familiarize yourself with basic
operating instructions before installing the AquaTrend
A Glossary of terms is provided on
AquaTrend Network.
Hach's AquaTrend Interface network system is designed to meet the needs of
small and large water analysis facilities alike. Unlike using a dedicated
controller for every instrument, the AquaTrend Interface network system uses
a single AquaTrend Module to interface a variety of devices. This enables
customization of systems to meet a variety of analytical testing needs. The
AquaTrend Interface network system utilizes a digital fieldbus communication
protocol called LonWorks to perform network operations and data
management tasks. Every device on an AquaTrend Interface network must be
identifiable in order to communicate with other AquaTrend Interface
network devices.
An AquaTrend Interface network system is built by adding an AquaTrend
Module to a sensor with a power supply and any other Hach peripheral
devices. Power and network connections are required for all AquaTrend
Interface devices operating on the network. After physically installing the
devices, you must add each device to the AquaTrend Interface network via the
network menus in the Master AquaTrend Interface. After adding all devices to
the network, you must designate which devices communicate with one
another. For example, once a sensor is attached to an AquaTrend Interface,
you must instruct the sensor to attach its reading to a designated AquaTrend
Interface display channel. Because many underlying network connections
occur when performing network operations, it is important to have all existing
devices on the network powered and operating normally when network
operations are conducted. Careful attention to network management
operations and the interconnection of devices will ensure successful operation
of the AquaTrend Interface network system.
This manual includes setup and operating instructions for AquaTrend
Interface, AquaTrend/SOM with integrated Signal Output Module, and
Portable AquaTrend Interface. If you are installing an AquaTrend/SOM and
want to include relay and analog output connections, see the Signal Output
Module (SOM) manual for information on making electrical connections.
Once you have gathered the necessary information to set up the AquaTrend
Interface and related sensors, read all instructions and warnings in
then proceed with the installation.
After making electrical and mechanical adjustments, read
which devices to include on the network. Then read and follow instructions in
Section 3 to set up communications between the AquaTrend Interface and
other network devices.
Figure 1 illustrates the basic installation sequence for all AquaTrend Interface
Network devices, except the PS1201 Power Supply, and includes references
to sections of this manual where instructions can be found.
®
Interface.
page 81 to help you understand the
Section 2
General Description
Section 5
to decide
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