Ocean Optics pH Sensor Patches, Probes and Cuvettes - Manual (Page 10)

1: Products
4 PHSENSOR-TRANS-REFLECT-201111
Performance Specifications
Specification Ocean Optics pH Probe Value
pH range 5 – 9
Analytical Wavelength 620nm
Baseline Correction Wavelengths 512nm (isosbestic) or 750nm
Calibration Options User Calibration with 6 Buffers
Factory Calibration with 3 Buffers
Immediate Startup with No Buffers (requires undisturbed setup)
Typical Absorbance Range 0.20 – 0.40
Typical pK Range 6.1 – 6.5
Typical Slope Range 2.2 – 3.0
User Calibration Accuracy <1% of reading across range
Factory Reset Accuracy 0% at Reset Point
1% Within 1 pH unit of reset
Up to 4% at 3 pH units from reset
Resolution 0.02 pH
Response Time, t
(90)
30 seconds
Stability No detectable drift for up to 12 hours
1% per day for long term monitoring
Interferences Cannot be used with colored or turbid liquids
Yellow liquids can be used if the 750nm baseline is used
Baseline Correction Wavelengths 512nm (isosbestic) or 750nm
Reflective pH Patches/Probe (nonintrusive)
Sensor System Components
The nonintrusive Reflective pH Patch system consists of the following:
Reflective pH Probe – R1000-4-ANGLE