Ocean and River Instruments

RINKO EC (ARO-EC) - JFE Advantech Co., Ltd.

Aquatic eddy covariance method is a powerful technique to measure benthic fluxes. The robust RINKO EC (model name: ARO-EC), as a new member of the RINKO series, is designed for aquatic eddy covariance measurements. The RINKO series is based on the optical (phosphorescence) principle which is now widely known as a remarkably fast response oxygen sensor with high accuracy. The response time of the RINKO EC oxygen sensing foil is less than 0.5 s (90%, from air to water at 25 °C). The foil life-time is more than 200 h, which enables at least 1 week of continuous measurements of dissolved oxygen. Moreover, the foil can be replaced easily by the user. Berg et al. (2016)*, after a detailed evaluation, concluded that RINKO EC is a reliable alternative for aquatic eddy covariance measurements of oxygen fluxes and its high data quality allows for new opportunities for eddy covariance flux studies, including long-term deployments in rivers, streams, and marine environments.