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HyQuest Solutions AD375MA Instruction Manual

Absolute shaft encoder
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Model AD375MA
© Copyright
Hyquest Solutions Pty Ltd
INSTRUCTION MANUAL
ABSOLUTE SHAFT ENCODER
MODEL AD375MA
QUALITY SYSTEM
ISO:9001
CERTIFIED
HYQUEST SOLUTIONS PTY LTD
PO BOX 332, LIVERPOOL B.C NSW 1871, AUSTRALIA
Phone:(Int.) 612 9601 2022 Fax: :(Int.) 612 9602 6971
Phone:(Nat.) (02) 9601 2022 Fax: :(Nat.) (02) 9602 6971
Email:
sales@hyquestsolutions.com.au
Web:
www.hyquestsolutions.com.au
Page 1
Issue 2 May, 2016

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Summary of Contents for HyQuest Solutions AD375MA

  • Page 1 Hyquest Solutions Pty Ltd INSTRUCTION MANUAL ABSOLUTE SHAFT ENCODER MODEL AD375MA QUALITY SYSTEM ISO:9001 CERTIFIED HYQUEST SOLUTIONS PTY LTD PO BOX 332, LIVERPOOL B.C NSW 1871, AUSTRALIA Phone:(Int.) 612 9601 2022 Fax: :(Int.) 612 9602 6971 Phone:(Nat.) (02) 9601 2022 Fax: :(Nat.) (02) 9602 6971 Email: sales@hyquestsolutions.com.au...

  • Page 2: Table Of Contents

    TABLE OF CONTENTS Introduction..................3 Installation ..................4 Maintenance ..................12 LCD Screen ..................15 Configuring the AD375MA ................16 SDI-12 Compliant Commands ............17 Specification ..................20 Hardware Specification ..................20 Appendix A Surge Protection ................. 21 Appendix B SDI-12 to RS232 Interfacing ............22 Appendix C Changing Pulley Sizes ..............

  • Page 3: Introduction

    Hyquest Solutions Pty Ltd 1. Introduction The Hyquest Solutions Absolute Shaft Encoder model AD375MA is a low power, microprocessor controlled shaft encoder designed for field operation to enable measurement of water level. The internal CMOS circuitry enables the encoder to output measured levels in absolute format as a 4-20mA and SDI-12 signal at the same time.

  • Page 4: Installation

    Hyquest Solutions Pty Ltd 2. Installation 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.
  • Page 5 Hyquest Solutions Pty Ltd 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.
  • Page 6 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”...
  • Page 7 Hyquest Solutions Pty Ltd Model AD375MA Page 7 Issue 2 May, 2016 © Copyright...
  • Page 8 Hyquest Solutions Pty Ltd Shaft Encoder Typical Bore Hole Set Up Using Guide Pulleys Model AD375MA Page 8 Issue 2 May, 2016 © Copyright...
  • Page 9 Hyquest Solutions Pty Ltd Model AD375MA Page 9 Issue 2 May, 2016 © Copyright...
  • Page 10 Hyquest Solutions Pty Ltd Model AD375MA Page 10 Issue 2 May, 2016 © Copyright...
  • Page 11 Hyquest Solutions Pty Ltd Model AD375MA Page 11 Issue 2 May, 2016 © Copyright...

  • Page 12: Maintenance

    Hyquest Solutions Pty Ltd 3. Maintenance The AD375MA (as well as AD37.5MA, AD150MA and AD100MA) Shaft Encoders require no maintenance, however all connected mechanical equipment should be periodically checked for cleanliness and ease of operation. Internal 3.6V Lithium AA batteries should be replaced every 2 years.
  • Page 13 Screwless Terminals The plug in terminal block shown is a screwless terminal that keeps a constant tension on the wire that is inserted. (The mating socket on the front panel of the AD375MA is sealed with a waterproofing gasket.) 1. Use a small flat blade screwdriver and push-in on the orange groove.
  • Page 14 Hyquest Solutions Pty Ltd 4-20mA Interface The 4-20mA interface in the AD375MA is optically isolated from the 0V and +12VDC on the right hand end of the connector. The 4-20mA circuitry must be powered by the loop. Batt +12V + 4-20mA...

  • Page 15: Lcd Screen

    Hyquest Solutions Pty Ltd 4. LCD Screen There are 7 LCD screens available. Some screens display internal data and some allow parameters to be changed. The screens are: LCD SCREEN DESCRIPTION AD375MA S/W 5.1 Display model, S/W Rev and present river level Level: 9.392 m...

  • Page 16: Configuring The Ad375Ma

    9. Set the logging interval and transducer warmup period in the data logger. (eg. Say ML420 interval is 15mins and warmup is 1 sec then TXI=015/01 ) (The AD375MA 4-20mA current is ready 200mS after loop power is applied) NOTE :...

  • Page 17: Sdi-12 Compliant Commands

    - -- ----------- ---------- --- ------ | --- 5 digit Sensor ID (eg 12345)(as set in aX4 cmnd) | --------- S/W Revision (eg 5.3) |----------------- Model (eg. AD375MA) |------------------------------ Company ID (HydrServ) | |------------------------------------- SDI-12 Version V1.3 Compliant |--------------------------------------- Unit Address...
  • Page 18 Hyquest Solutions Pty Ltd SPECIAL SDI-12 X COMMANDS aXn! Return data associated with command 'n'. Quadrature Shaft Encoder will reply with a0001<CR><LF> The aDO! command must be issued to get the actual data. aXn+xxxx! Set parameter for command 'n'. Quadrature Shaft Encoder will reply with a0001<CR><LF>...
  • Page 19 Hyquest Solutions Pty Ltd Set/Get Lithium Battery Backup Mode (S/W Rev 5-3 and higher) aX16! Get the Lithium backup mode (0=NO (off) : 1=YES (on)). aX16+0! Set the Lithium Battery Backup mode to NO aX16+1! Set the Lithium Battery Backup mode to YES (When set to YES and no external 12V is present –...

  • Page 20: Specification

    6. Specification Hardware Specification Mechanical Follow Rate: 10 metres per minute Pulses/Rev: 375 pulses per revolution (AD375MA) Resolution: AD375MA - 1mm (375 pulses/rev) AD150MA – 2.5mm (150 pulses/rev) AD100MA – 0.01ft (100 pulses/rev) AD37_5MA – 10mm (37.5 pulses/rev) Can be used in any size bore down to 100mm diameter.

  • Page 21: Appendix A Surge Protection

    Equip Side Equip Side Solar Battery Mains Charger Battery Charger Battery Battery Equipment to be powered Equipment to be powered (AD375MA + Data Logger) (AD375MA + Data Logger) Model AD375MA Page 21 Issue 2 May, 2016 © Copyright...

  • Page 22: Appendix B Sdi-12 To Rs232 Interfacing

    Hyquest Solutions Pty Ltd Appendix B SDI-12 to RS232 Interfacing The following schematic is for an SDI-12 to RS232 adapter that can be used for any Hyquest Solutions SDI-12 transducer. The adapter will allow a transducer to be connected to a PC, and will communicate at 1200 baud, 7 bits and even parity.
  • Page 23 Hyquest Solutions Pty Ltd Set SDI-12 Address to 0 Set Comms Type to RS232 Settings for Hyperterminal Comm Port depends on your PC Sample comms session entering : 0R0! Model AD375MA Page 23 Issue 2 May, 2016 © Copyright...
  • Page 24 0R0! 0+0001.234 (Contin Measure – same result as an M and D command combination) (Compliance with SDI-12 Spec V1.3 (implementing CRC ) occurs in AD375MA S/W Rev 5.0 and higher) 0MC! 00001 (Measure command with CRC request – reply 1 meas ready in 0 secs) 0D0! 0+0001.028Kb| (Data command –...

  • Page 25: Appendix C Changing Pulley Sizes

    Hyquest Solutions Pty Ltd Appendix C Changing Pulley Sizes The Absolute Shaft Encoder comes in 4 standard models : • AD375MA 375 steps/rev (= 375mm circumference) (1mm resolution) • AD150MA 150 steps/rev (= 375mm circumference) (2.5mm resolution) • AD37_5MA 37.5 steps/rev (= 375mm circumference) (1cm resolution) •...

  • Page 26: Model Ad375Ma

    Hyquest Solutions Pty Ltd 7. Press the “select” button to start the number of steps flashing. 8. Press the “scroll” button to increment the number of steps by 1. (Hold the “scroll” button to make it increment faster. When the numbers reach 1000, they will return to 9.

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