Concept
Sunburst Autonomous Flow Through Instrument {AFT-pH} pH sensor
| URI | http://vocab.nerc.ac.uk/collection/L22/current/TOOL2068/ | ||
|---|---|---|---|
| Within Vocab | SeaVoX Device Catalogue | ||
| Alternative Labels | Sunburst AFT-pH | ||
| Definition | A benchtop autonomous flow through instrument designed to be plumbed into a sample line / flow through system on a research vessel. The instrument uses a highly accurate colourimetric reagent method to measure pH in the 7 - 9 range, in salinities between 25 - 40 PSU. The instrument can also measure the pH of individual bottle samples. The AFT-pH logs its own data and can be configured to support other external instruments if required. It has a response time of 3 minutes, a precision of less than 0.001 pH units, a low long-term drift of less than 0.001 pH units over 6 months, and an accuracy of +/- 0.003 pH units. Thermistor accuracy is to within 0.1 degC, and precision is +/- 0.01 degC. Duration of use is 15,000 measurements from one reagent bag. | ||
| Date | 2024-07-11T10:09:53 | ||
| Identifier | SDN:L22::TOOL2068 | ||
| Note | accepted | ||
| Has Current Version | 1 | ||
| version | 1 | ||
| inScheme | http://vocab.nerc.ac.uk/scheme/SDNDEV/current/ | ||
| Broader | |||
| L05 SeaDataNet device categories - (2) | |||
| Related | B75:ORG00366 | Sunburst Sensors | Mapping: 1855670 | 
| L35:MAN0097 | Sunburst Sensors | Mapping: 1855672 | |
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