The OptoReg system: A simple and inexpensive solution for regulating water oxygen.

This is a Preprint and has not been peer reviewed. The published version of this Preprint is available: https://doi.org/10.1093/conphys/coae024. This is version 1 of this Preprint.

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Authors

Rasmus Ern, Fredrik Jutfelt

Abstract

This paper describes an optocoupler-based regulation apparatus for saturation manipulation of oxygen in water (OptoReg). This system enables control of solenoid valves for oxygen and nitrogen gases using a FireSting-O2 meter, an optocoupler box, and an electronic switch box. The hardware components connect to a computer through USB cables. The control software is free and has a graphical user interface, making it easy to use. With the OptoReg system, any lab with a 4-channel FireSting-O2 meter can easily and cheaply set up four independently controlled systems for regulating water oxygen levels. Here we describe how to assemble and run the OptoReg system and present a data set demonstrating the high precision and stability of the OptoReg system during static acclimation experiments and dynamic warming trials.

DOI

https://doi.org/10.32942/X2HW3C

Subjects

Engineering, Life Sciences

Keywords

Dates

Published: 2023-12-06 02:26

Last Updated: 2023-12-06 02:26

License

CC-BY Attribution-NonCommercial 4.0 International

Additional Metadata

Language:
English