Important user information
Dear customer, thank you for purchasing a Kipp & Zonen instrument. It is essential that you read this manual completely
for a full understanding of the proper and safe installation, use, maintenance and operation of your DustIQ.
We understand that no instruction manual is perfect, so should you have any comments regarding this manual we will be
pleased to receive them at:
OTT HydroMet B.V.
Delftechpark 36, 2628 XH Delft, or
P.O. Box 507, 2600 AM Delft
The Netherlands
Tel. +31 15 2755 210
Publication date:
May, 05, 2021
Important changes:
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Extra instructions for dealing with small transmission loss offsets
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Advice for not yet locally dust calibrated measurements
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Advice to use 24VDC as power supply to get the best measurements
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Extra attention for the right Modbus command “04 Read Input Registers” to get data from the DustIQ.
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Extra Frequently Asked Questions (FAQs)
December 2019 updates:
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Added advice not to install the DustIQ horizontally when vertical soiling pattern is present.
October 2019 updates:
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Added Tilt and Panel temperature to Campbell examples
January 2019 updates:
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Full Feature version with tilt sensor, PV panel temperature sensor and daisy-chain capabilities added.
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DustIQ height reduced from 40 to 35mm starting with serial number 180094
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Added status and calibration context flags and stored in Modbus® registers
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Increased minimum irradiation for local dust calibration to 800 W/m
2
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Added remark that 5% transmission loss for local dust calibration equals 50 ‰ in Modbus register 21