HyQuest Solutions AD375MA Manuale utente

AD375MA

User Manual

Table of Contents

Disclaimer 3I

II Scope of Delivery 4

III Safety Instructions 5

Part I Introduction 6

Part II Installation 7

Part III Configuration 13

Part IV Operation 14

4.1 Screwless Terminals ..................................................................................................................................... 14

4.2 External Power ............................................................................................................................................... 14

4.3 4-20mA Interface ......................................................................................................................................... 15

4.4 LCD Screen ...................................................................................................................................................... 15

4.5 SDI-12 Compliant Commands .................................................................................................................... 16

Part V Maintenance 20

Part VI Troubleshooting 21

Part VII Repair 23

Part VIII Technical Data 24

Part IX Obligations of the Operator and Disposal 25

9.1 Obligations of the Operator ....................................................................................................................... 25

9.2 Dismantling / Disposal ................................................................................................................................ 25

Part X Appendices 27

10.1 Appendix A Surge Protection .................................................................................................................... 27

10.2 Appendix B SDI-12 to RS232 Interfacing ............................................................................................. 28

10.3 Appendix C Changing Pulley Sizes ........................................................................................................... 30

reproduced in any form or by any means without the

written permission of the publisher. HyQuest

Solutions waives copyright for users to print out

parts of the documentation in hard copy for their

own use only.

Trademark Notice: HyQuest Solutions (HS) and

KISTERS products and services referred to in this

document are trademarks or registered trademarks

of HyQuest Solutions or KISTERS AG. Other product

names used may or may not be the trademarks of

their respective owners.

Company. Any rights not expressly granted herein

are reserved.

The information provided in this manual was deemed

accurate as of the publication date. However, updates

to this information may have occurred.

This manual does not include all of the details of

design, production, or variation of the equipment

nor does it cover every possible situation which may

arise during installation, operation or maintenance.

HyQuest Solutions shall not be liable for any

incidental, indirect, special or consequential damages

whatsoever arising out of or related to this

documentation and the information contained in it,

even if HyQuest Solutions has been advised of the

possibility of such damages.

Any errors found in any HyQuest Solutions product

should be reported to HyQuest Solutions where

every effort will be made to quickly resolve the

problem.

This document is public.

I Disclaimer

II Scope of Delivery

AD375MA Shaft Encoder Unit w/axle and its knurled bolt w/set screw

Allen key suitable for set screw

Manufacturing Compliance Certificate

Read the user manual including all operating instructions prior to installing, connecting and powering up the HyQuest

Solutions AD375MA. The manual provides information on how to operate the product. The manual is intended to be

used by qualified personnel, i.e. personnel that have been adequately trained, are sufficiently familiar with

installation, mounting, wiring, powering up and operation of the product.

Keep the user manual on hand for later reference!

If you encounter problems understanding the information in the manual (or part thereof), please consult the

manufacturer or its appointed reseller for further support.

HyQuest Solutions AD375MA is intended to be used in hydrometeorological or environmental monitoring

applications.

Before starting to work, you have to check the functioning and integrity of the system.

Check for visible defects on the AD375MA, this may or may not include any or all of the following mounting

facilities, connectors and connections, mechanical parts, internal or external communication devices, power

supplies or power supply lines, etc.

If defects are found that jeopardize the operational safety, work must be stopped. This is true for defects found

before starting to work as well as for defects found while working.

Do not use the HyQuest Solutions AD375MA in areas where there is a danger of explosion.

The present user manual specifies environmental/climatic operating conditions as well as mechanical and electrical

conditions. Installation, wiring, powering up and operating the HyQuest Solutions AD375MA must strictly comply with

these specifications.

Perform maintenance only when tools or machinery are not in operation.

If guards are removed to perform maintenance, replace them immediately after servicing.

Never make any electrical or mechanical diagnostics, inspections or repairs under any circumstances. Return the

sensor to the manufacturer’s named repair centre. You can find information on how to return items for repair in the

relevant section of the HyQuest Solutions web site.

Disposal instructions: After taking the HyQuest Solutions AD375MA out of service, it must be disposed of in

compliance with local waste and environmental regulations. The HyQuest Solutions AD375MA is never to be disposed

in household waste!

Inputs and outputs of the device are protected against electric discharges and surges (so-called ESD). Do not

touch any part of the electronic components! If you need to touch any part, please discharge yourself, i.e. by touching

grounded metal parts.

III Safety Instructions

Introduction

1Introduction

Thank you for choosing our product. We hope you will enjoy using the device.

HyQuest Solutions manufactures, sells, installs and operates quality instrumentation, data loggers and communication

technology. Products are designed with passion for environmental monitoring and with a deep understanding of the

quality, accuracy and robustness needed to fulfil the requirements of measurement practitioners in the field.

The present User Manual will help you understand, install and deploy the device. If, however, you feel that a particular

information is missing, incomplete or confusing, please do not hesitate to contact us for further support!

The AD375MA is a rugged, microprocessor-based, power-efficient shaft encoder for reliable and accurate water level

measurement. The built-in digital technology determines the absolute water level from the reference level and the

relative rotational movements at level increase or decrease. This eliminates any further calculation or conversion in

downstream data acquisition devices.

Installation

2Installation

The encoder is readily adapted to float pulley wheels with beaded or borehole floatline, tape chain and sprockets and

gear drives. Provided on the base of each encoder are two threaded holes for levelling screws.

Beaded Float Line

Two adjustable end hooks (part EH01) are provided for attaching the beaded float line to the float and the

counterweight. The length of the float line should be such that the counterweight will not run into the shelf or pulley

when the float is at a low stage or strike the bottom of the float well when the float is at the highest stage. Float and

counterweight should pass each other and should have adequate clearance from the sides of the stilling well.

Beaded line should be cut about 1/16 inch past a bead to prevent fraying.

Attach the float line to the float and lower it to the water. Pass the float line over the pulley making sure that the cable

beads (or tape perforations) engage the respective recessed (or spines) on the pulley. Attach the counterweight and

lower it into position.

Installation

Borehole Float Line

Attach borehole guide pulleys to mounting bracket. Ensure guide sheave grooves line up with float pulley groove.

Two adjustable end hooks (part EH01) are provided for attaching the float line to the float and the counterweight. The

length of the float line should be such that the counterweight will not run into the shelf or pulley when the float is at a

low stage or strike the bottom of the float well when the float is at the highest stage. Float and counterweight should

pass each other and should have adequate clearance from the sides of the Borehole.

End Hook Assembly

Cut the beaded line approximately 2 mm (1/16") past a bead to prevent fraying. Attach end hook by :-

Unscrew the plate from the adjustable hook.

Place the beaded line between the two plates and then tighten the screws on the plate.

Allow for a bead to be trapped just below the locking plate. Make sure that the line is sitting perpendicular to the plate.

Electrical Installation

A +12V power source must be connected to the SDI-12 / Power port as shown on page 8, to provide power to the

AD375MA electronics.

Once external power is connected, press the “Scroll” button and step to the “Battery Voltage” display. Press and hold the

“Select” button until the display shows “Lithium Backup” – No. Press the “Select button again and the “No” will start

flashing. Press the “Scroll” button to change the No to a “Yes”. Press the “Select” button to stop the Yes from flashing. Press

the “Scroll” button to step back to the main displays.

(The internal lithium battery is used to power the internal electronics during transport, but it doesn’t power the circuitry

to monitor the shaft rotation position. If this were selected while external 12V power wasn’t present, the battery would

only last for about 1 to 2 months. So with Lithium Backup set to “Yes”, the lithium battery will allow the water level to be

tracked in the unlikely event that the external 12V power is not present.)

Installation

Shaft Encoder Typical Bore Hole Set Up Using Guide Pulleys.

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