Onset HOBO U26 Dissolved Oxygen Data Loggers.pdf
PDF 927 KB Posted
- Attached to
- Newport Data Logger
- Solicitation number
- S-63500-00004172
- Issued by
- Malheur County, Oregon
About this file
This document describes the Onset HOBO U26 Dissolved Oxygen Data Loggers, which are affordable, high-performance monitoring devices used by aquatic biologists, hydrologists, and other research professionals to track dissolved oxygen levels in various water bodies. The loggers leverage optical sensor technology to provide accurate, long-lasting measurements with minimal maintenance, and can automatically adjust for salinity and barometric pressure. This Sole Source solicitation from the State of Oregon will result in a Purchase Order to supply the data loggers to Lincoln County and Newberg City. The loggers have a range of 0-30 mg/L, an accuracy of 0.2 mg/L up to 8 mg/L, and a sensor cap lifespan of 6 months. The loggers operate between -5°C to 40°C, have a 21,700 measurement capacity, and a 3-year battery life.
The state has determined this to be a sole source procurement, likely due to the specialized nature of the dissolved oxygen monitoring equipment. No pricing information is provided, but the document highlights the affordability and cost-effectiveness of the Onset HOBO loggers compared to other monitoring options. The loggers will be used for climate change research, environmental impact studies, and general water quality monitoring across the participating jurisdictions in Oregon.
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| 4173 Preliminary Bid Tabulation.xlsx | XLSX spreadsheet | |
| RBR Sole Source Letter 2020.pdf | ||
| RBR Sole Source Letter 2020~1.pdf | ||
| RBR duet datasheet.pdf |
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Text version
Affordable, high performance dissolved oxygen monitoring HOBO® Dissolved Oxygen Logger
*HOBO Base Station or HOBO Waterproof Shuttle required.
1Coupler included with HOBO Base Station or HOBO Waterproof Shuttle.
Key Advantages:
• Affordable, high performance DO monitoring with 0.2 mg/L accuracy
• Optical DO sensor technology for long-lasting calibration, less maintenance
• Software corrects for measurement drift from fouling; provides salinity-adjusted DO concentration and percent saturation (Salinity adjustment requires salinity meter reading or data logger file. Percent saturation requires barometric pressure data file.)
• Optic USB interface for high-speed, reliable data offload
• Easy-to-replace DO sensor cap lasts six months
The HOBO U26 Dissolved Oxygen Logger measures concentrations of dissolved oxygen in lakes, streams, rivers, estuaries, and coastal waters. Used by aquatic biologists, hydrologists, and other research professionals to monitor water quality, the U26 is ideal for climate change and environmental impact studies as well as ecological and oceanographic research.
The HOBO U26 combines the high-accuracy, robust performance of industry-leading RDO® Basic (Rugged Dissolved Oxygen) sensor technology with an easy-to-maintain design, all at a fraction of the cost of other monitoring options.
Supported Measurements: Dissolved Oxygen, Temperature
Minimum System Requirements:
Coupler1Software Base Station* http://www.onsetcomp.com/products/data-loggers/u26-001
Copyright© 2016 Onset Computer Corporation. All rights reserved. Onset, HOBO, HOBOware are registered trademarks of Onset Computer Corporation. Other products and brand names may be trademarks or registered trademarks of their respective owners. Patented technology (U.S. Patent 6,826,664) MKT1157-0229
For complete information and accessories, please visit: www.onsetcomp.com
Contact Us
Sales (8am to 5pm ET, Monday through Friday) Email sales@onsetcomp.com Call 1-508-759-9500 In U.S. toll free 1-800-564-4377 Fax 1-508-759-9100
Technical Support (8am to 8pm ET, Monday through Friday) Contact Product Support onsetcomp.com/support/contact Call 1-508-759-9500 In U.S. toll free 1-877-564-4377
Onset Computer Corporation 470 MacArthur Boulevard Bourne, MA 02532
Part number U26-001
Dissolved Oxygen Sensor Type Optical Measurement Range 0 to 30 mg/L Calibrated Range 0 to 20 mg/L; 0 to 35°C (32 to 95°F) Accuracy ± 0.2 mg/L up to 8 mg/L; ± 0.5 mg/L from 8 to 20 mg/L Resolution 0.02 mg/L Response time To 90% in less than 2 minutes DO Sensor Cap Life 6 months (cap expires 7 months after initialization)
Temperature Operating Temperature and Measurement Range -5 to 40°C (23 to 104°F), non-freezing
Temperature Accuracy 0.2°C (0.36°F) Temperature Resolution ± 0.02°C (± 0.04°F) Response Time To 90% in less than 30 minutes
Logger Memory 21,700 sets of DO and temperature measurements Logging Rate 1 minute to 18 hours Time Accuracy ± 1 minute per month at 25°C (77°F) Battery 3.6 V lithium battery; factory replaceable, life: 3 years (at 1 minute logging) Maximum Depth 100 m (328 ft) Dimensions 39.6 mm diameter x 266.7 mm (1.56 in diameter x 10.5 in) CE Compliant Yes http://www.onsetcomp.com
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