Dyacon Mi-Met WSD-1 User manual
Mi-Met
WSD-1
(Wind Speed Direction)
Sensor Manual
57-6017 Rev A - Preliminary
November 2013
DYACON®, Inc
Contents
NOTICES........................................................................................................................................................4
© Copyright 2013 Dyacon, Inc..........................................................................................................4
Mi-Met Manufacturer.........................................................................................................................4
Declarations........................................................................................................................................5
arranty Information.........................................................................................................................5
WSD-1 INTRODUCTION.............................................................................................................................7
Scope.........................................................................................................................................................7
Technical Support......................................................................................................................................7
Contact Information............................................................................................................................7
Phone / Email Support........................................................................................................................7
PRODUCT O ER IEW...............................................................................................................................8
Product Description...................................................................................................................................8
hat Do You Get?....................................................................................................................................9
hat You Need.........................................................................................................................................9
Accessories..............................................................................................................................................10
ASSEMBLY INSTRUCTIONS...................................................................................................................11
Required Tools........................................................................................................................................11
Assembly.................................................................................................................................................11
Mounting.................................................................................................................................................11
iring......................................................................................................................................................13
MODBUS.......................................................................................................................................................14
Modbus Summary....................................................................................................................................14
Modbus Utilities......................................................................................................................................14
Modbus Commands.................................................................................................................................15
Data Format.............................................................................................................................................18
ind Speed Format..........................................................................................................................18
ind Direction Format....................................................................................................................18
Conversions and Calculations..................................................................................................................18
Speed Unit Conversions...................................................................................................................18
THEORY OF OPERATION.......................................................................................................................19
ind Direction Sensing...........................................................................................................................19
ind Speed Sensing................................................................................................................................19
POWER SA ING.........................................................................................................................................20
Power Down............................................................................................................................................20
SOFTWARE.................................................................................................................................................21
Introduction.............................................................................................................................................21
Boot Loader.............................................................................................................................................21
Required Equipment.........................................................................................................................21
Procedure..........................................................................................................................................21
REPAIR AND SER ICE.............................................................................................................................22
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Parts List..................................................................................................................................................22
Exploded View........................................................................................................................................23
Repair and Calibration.............................................................................................................................24
SPECIFICATIONS......................................................................................................................................25
MODBUS APPENDIX.................................................................................................................................26
RE ISION HISTORY.................................................................................................................................28
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Notices
© Copyright 2013 Dyacon, Inc.
A Rights Reserved
This publication is protected by copyright and all rights are reserved. Any reproduction of this
manual, in part or in full, by any means, mechanical, electronic, or otherwise, is strictly prohibited
without express written permission from Dyacon, Inc.
The information in this manual has been carefully checked and is believed to be accurate.
However, Dyacon, Inc. assumes no responsibility for any inaccuracies that may be contained in
this manual. All information is subject to change.
Trademark Acknow edgments
Dyacon® is a registered trademark of Dyacon, Inc.
Mi-MetTM, Mi-Met SD-1TM, SDTM are trademarks of Dyacon, Inc.
All other trademarks are property of their respective owners.
Mi-Met Manufacturer
Dyacon, Inc.
220 est 300 South
Newton, UT 84327
USA
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DYACON®, Inc
Dec arations
Mi-Met SD-1TM is a low-power electronic industrial device.
RoHS
All electronic and mechanical components conform to RoHS, Directive 2002/95/EC.
FCC CFR Part 15
This equipment complies with the limits for a Class A digital device, pursuant to part 15 of the
FCC Rules. These limits are designed to provide reasonable protection against harmful
interference in a commercial installation.
Warranty Information
Limited Hardware Warranty
Dyacon, Inc. warrants that all Mi-Met products and components shall be free from defects in
materials and workmanship for a period of one (1) year from the date of shipment when installed
according to instruction manuals accompanying said hardware and used for the purpose for which
said hardware was designed. In the event a defect in materials or workmanship is discovered and
reported to Dyacon within the warranty period, Dyacon will at its option repair the defect or
replace the defective product. This warranty does not apply where the product has been operated
outside the specifications of the product. Dyacon’s obligation hereunder will be limited to such
repair or replacement. Customers shall have the responsibility to ship the defective equipment to
Dyacon at its (customer’s) expense, with all cost of shipment prepaid. Dyacon will ship the
repaired or replaced item at its (Dyacon’s) expense using the preferred shipment method of
Dyacon.
Disc aimer of Warranties
The warranties set forth above are in lieu of all other warranties of Dyacon, whether written, oral,
or implied. Dyacon makes no warranties regarding its products (hardware or software), including
without limitation warranties as to merchantability, fitness for a particular purpose, any warranty
arising from course of performance, course of dealing or usage of trade whether any of the
foregoing warranties are either expressed or implied. Dyacon specifically makes no warranties as
to the suitability of its products for any particular application. Dyacon shall in no event be liable
for performance, or use of any product covered by this agreement whether such claim is based
upon warranty contract (express or implied), strict liability, negligence, or otherwise. Any
responsibility and/or liability of Dyacon shall, in connection with a warranted product, be limited
in maximum amount to the original purchase price of that product.
Remova of Seria Number
Removal of the original serial number label or reprogramming of the electronic serial number
voids any warranty on the device. Dyacon will not repair or update products if the serial number
label missing or legitimate ownership cannot be verified. Dyacon may not return equipment that is
missing serial numbers or where legitimate ownership is in question.
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Updates or Modifications
Dyacon shall be under no obligation to update or modify its products except as herein noted to
correct defects or errors. Customer agrees that all representation and warranties contained herein
shall be immediately null and void in the event of any incorrect installation, modification,
alteration, or change in or to any product affected by or on behalf of customer except for a change
made by Dyacon or other direct supervision thereof.
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WSD-1 Introduction
Scope
The content of this document is intended for integrators, installers, and users of SD-1TM,
hereinafter referred to as SD or “wind sensor”.
This document includes installation instructions, technical specifications, electrical requirements,
and data protocol information. Some aspects of the equipment operation may be covered in other
documents. Please contact Dyacon or visit the Mi-Met.co website.
Technica Support
Contact Information
Dyacon, Inc.
220 est 300 South
Newton, UT 84327
Phone: (435) 753-1002
Email: [email protected]
Internet: www.Mi-Met.co
Normal business hours are from 8:00 am to 5:00 pm. (Mountain Time Zone, GMT -0700)
Phone / Emai Support
If you need technical support via the phone or email, please have the following information ready:
Product name, model number, and serial number.
Your name and name of the purchaser of the equipment.
Name of company, institution, or agency.
Phone number, email address.
Billing and Shipping address.
A clear description of the question or problem.
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Product Overview
Product Description
Mi-Met SD-1TM is a 3-cup anemometer and wind vane. The wind sensor may be used as a
standalone sensor, a component of Mi-Met weather station, or integrated into other automated
equipment.
SD-1 is a digital sensor, sending instrument data and receiving control commands via a digital
serial port using Modbus-RTU protocol over TIA-485-A (RS-485). Consequently, there is no
measurement degradation due to cable length.
SD-1 is easily mounted on the end of a vertical 3/4” pipe with no additional hardware.
Alternatively, it may be attached to 1” pipe using standard structural pipe fittings.
Sensor Protoco Descriptions
Modbus-RTU (RS-485) is an electrically robust protocol used in automation systems, such as
programmable logic controllers (PLCs). SD uses a default data rate of 19200 bps, ensuring
adequate data throughput while extended cable length capability.
An SDI-12 version of SD-1 is available to value-added resellers (VARs). Additional firmware
and customization options are also available to VARs. Contact Dyacon, Inc. for more information.
Design Objectives
The design for SD-1 was designed to meet the following objectives.
•Minimize installation hardware and complexity – The mounting adapter fits over 3/4” pipe or
can be used with 1” structural pipe fittings.
•Flexible cable routing – The cable can be routed inside or outside of the mounting pipe.
•Extended bearing life – Hybrid ceramic bearings provide 4x life of standard stainless steel
bearings.
•Reduce wear components – Magnetic direction sensor is used in SD-1. ind vanes
typically use a potentiometer.
•No wind direction dead spots – Unlike potentiometer wind vanes, the magnetic direction
sensor in SD-1 provides high resolution with no dead spots.
•Durable construction – Anodized aluminum components ensures accurate and rugged
performance whether used for mobile or stationary applications.
•Field serviceable – Anemometer cups and vane components can be easily replaced in the
field.
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What Do You Get?
SD-1 ships with:
Instrument assembly
5 m (20 ft) cable
Cable ties
What You Need
In order to utilize the SD-1 you will need the following.
3/4” diameter mounting pipe (aluminum, steel, or PVC, 1.04 inch (26.7 mm) actual outer
diameter). Or, a 1” structural pipe fitting.
5 to 24 VDC power supply and Modbus host device.*
* Not required if using the SD-1 with a Mi-Met control module.
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Image 1: As Shipped
DYACON®, Inc
Accessories
Structura Pipe Fittings
Standard structural pipe fittings for 1” schedule 40 pipe are available from hardware suppliers and
manufacturers.
Hollaender Nu-Rail www.nurail.com
J.C. Denier www.denierco.com
Easyfit www.easyfit.com
Diamond Aluminum www.diamond-aluminum.com
KEE Systems www.keesystems.com
McMaster-Carr www.mcmaster.com
Grainger www.grainger.com
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