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Proper Coupler Seating, BASE-U-4 (Optic Base station) and the U-DTW-1 (Waterproof Shuttle)
The attached image shows both the incorrect and correct assembly of a logger coupler to the BASE-U-4 (Optic Base station) and the U-DTW-1 (Waterproof Shuttle).
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Deploying water temp and water level loggers or developing a QAPP
For users looking for guidance on deploying temperature or water level loggers, or developing a QAPP (Quality Assurance Project Plan), here is a great reference from the EPA:
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Why is the RH response time less for the HOBO MX2301 vs the HOBO MX2302?
The RH response time in the HOBO MX2301 internal logger is faster than in the HOBO MX2302 external logger. This is due to the geometry of the location of the internal sensor in the loggers.
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Wiring Diagram - Monitoring 480V, 3-Phase AC Voltage and Current with a HOBO H22-001 Energy Logger
Attached is a wiring diagram that shows how to use CTs and PTs with the HOBO H22-001 Energy Logger via the S-FS-TRMSA Module. The image shows a 480 V, 3-phase application.
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Sample Data - Monitoring Remote Water Level, Rainfall and Specific Conductance in a Drainage Pond
Attached is a screen-capture from our HOBOlink web product that displays measurements made with a HOBO RX3000 station that's monitoring (among other things) rainfall, water level (Stevens vented wa
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ACT Evaluation Report on the HOBO U26 DO Logger
The HOBO U26 Dissolved Oxygen logger has been part of a multi-year evaluation of DO loggers and sensors by the Alliance for Coastal Technologies (ACT), and the results have just been published onli
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Internal Thermistor Location in Pendant Loggers (UA-00x)
Attached is a drawing that shows where the internal thermistor is located in the HOBO UA-001-08/64, the UA-002-08/64, and the UA-003-64.
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HOBO U12-015 Internal Thermistor Location
Attached is an image that depicts the location of the internal thermistor on the HOBO U12-015 data logger.
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