palintest Macro 900 Operation Manual

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palintest Macro 900 Operation Manual Manual pdf 143 page image

Macro 900 Operation Manual V3© 2013 Palintest Ltd. www.palintest.com Page 143 of 14725.3. I can see algae in the water but my sensor is giving low readings. Why?Palintest Chlorophyll and Blue-Green Algae sensors are not designed tomeasure floating macroscopic (visible to the naked eye) algae or plant material.The sensors measure the fluorescence from the microscopic phytoplanktonsuspended within the body of the water below the surface. Carpets of floatingalgae are often seen on environmental water that has low subsurfacephytoplankton concentrations. In these circumstances, the fluorescent algaesensors will return low readings.25.4. What is the Range and Resolution of the Optical Probes?Range 0 – 3000 NTUResolution 2 Auto-range scales: 0.0 99.9 NTU, 100 – 3000 NTUTurbidity Repeatability ± 5% of readingMLD(1) 0.0 NTUMLR(2) 5.0 NTURange 0 – 500 μg/L (ppb)Resolution 0.1 μg/LChlorophyll Repeatability ± 5% of reading (see note 3)MLD(1) 0.1μg/LMLR(2) 5 μg/LPhycocyanin Range 0 – 300,000 cells/mL(BGA-PC) Resolution 1 cell/mL(Freshwater Blue Repeatability ± 10% of reading (see note 3)-Green Algae) MLD(1) 200 cells/mLPhycoerythrin Range 0 – 200,000 cells/mL(BGA-PE) Resolution 1 cell/mL(Marine Blue- Repeatability ± 10% of reading (see note 3)Green Algae) MLD(1) 400 cells/mLRange 0 – 500 μg/L (ppb)Rhodamine Resolution 0.1 μg/LWT Dye Repeatability ± 5% of reading (see note 3)MLD(1) 0.1 μg/LMLR(2) 5 μg/LRange 0 – 500 μg/L (ppb)Fluorescein Resolution 0.1 μg/LDye Repeatability ± 5% of reading (see note 3)MLD(1) 0.1 μg/LMLR(2) 5 μg/LRange 0 – 10,000 μg/L (ppb) (Napthalene)Refined Oil Resolution 0.1 μg/LRepeatability ± 10% of reading (see note 3)MLD(1) 100 μg/L (Napthalene)Palintest Ltd reserves the right to change specifications without noticeNotes:1. MLD (Minimum Level of Detection) is the minimum value the electrode is physically capableof measuring.2. MLR (Minimum Level of Repeatability) is the value below which optical electrode readings