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Idronaut - Model Ocean Seven 306 - pH & ...

Idronaut - Model Ocean Seven 306 -pH & Redox sensor

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The OCEAN SEVEN 306 pH and redox combined sensor is provided with analogue output 0..5V and allows the in situ determination of pH and optionally redox (ORP – Oxidation Reduction Potential) in natural waters as oceans, lakes, rivers and estuaries, at depths down to 700 bar. The OCEAN SEVEN 306 pH and redox combined probe, is specifically designed to simplify the integration in CTD probes or third-part instruments. The OS306 is available with POM (200 bar) and Titanium (700 bar) housings.

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Measuring principle: Potentiometric
pH sensor: Glass membrane
Redox sensor: Platinum electrode
Reference sensor inner half cell: Ag/AgCl double bridge

Measuring range: pH 1..13 pH (*)
Redox +/- 1000 mV
Initial Accuracy:
pH 0.01 pH
Redox +/- 1mV

Resolution:
pH 0.001 pH
Redox +/- 0.1 mV

Response Time: t63% < 3 s
Temperature range: -2.. +38°C

Output:
pH: 0..5 VDC
Redox: 0..5 VDC (**)

Power supply: 12VDC (11..15 VDC)
Power consumption: 30 mA@12 VDC
Bulkhead connector: MCBH-6-mini-wet-pluggable

Mechanics:
Probe housing: White POM for 1500 m or TITANIUM for 7000 m
Sensor body: TITANIUM
Probe diameter: POM 75 mm or TITANIUM 48.5 mm
Probe Length: POM 480 mm or TITANIUM 325 mm

(*) The pH electronic range is user customizable to: 0..14 pH, 2..12 or 3..11(default).
(**) An offset of +2500mV shift the redox sensor output. Therefore the redox sensor output is +1500 mV to +3500 mV.