Phosphate Analyzer (Yellow Method)
Model CA-600
The Phosphate Analyzer is an on-line sequential sampling analyzer, a sequence of sampling, analysis and result processing is performed and repeated using colorimetric methods. The measurement is a colorimetric analysis using an LED light source and a heated colorimetric cell designed for measuring trace amounts of analyse in water.
The colorimetric analyzer is assembled with two separated sections. The bottom section is the LIQUIDS section. It includes all of the components involved in the flow, mixing and reaction stages of the sample and reagents. Numerous analysis configurations can be programmed, depending on accessories and of the number of micro pumps mounted in the Liquid Section. The top section is the ELECTONICS enclosure. It includes the main power supply, the controller PCB assembly and the touch screen interface.
The measuring Principle
The reagent, containing sodium molybdate and ammonium meta-vanadate in an acid medium, reacts with the orthophosphate to form a yellow coloured phospho-vanado-molybdate compound. The absorbance intensity is proportional to the phosphate concentration in the sample and is determined at 430 nm.
• Simple & Reliable
• Easy installation
• User friendly
• Menu structure touchscreen
• Easy interface Configuration
• Two separate compartments
• Low Reagent Alarms
• Cost Effective & Low Maintenance
• Adjustable Cycle time to minimize reagent usage
Measuring principle | Differential photometric absorbance/colorimetric (Yellow Method) |
Measuring range | 0.05 to 10 ppm P-PO4 (30 ppm PO4) for the 26 mm cell – 0.1 to 16 ppm P-PO4 / (50 ppm PO4 ) for the 16 mm cell up to 640 ppm PPO4 / 2000 ppm PO4 with internal dilution |
Reproducibility | ± 20 ppb or ± 5%, whichever is greater (26 mm cell) ± 50 ppb or ± 5%, whichever is greater (16 mm cell) |
Cycle time | 8-10 minutes, including conditioning before analysis cycle and rinsing after measuring |
Accuracy | Depends upon specific range measurement |
Sample Temperature | 41 – 122 °F (5 to 50 °C) |
Sample Pressure | Pressure-free from overflow vessel |
Sample Flow | 80 to 500 mL/min |
Sample Connections | 6 mm (¼-in.) |
Drain Connections | 12 mm (½-in.) |
Monthly reagent consumption (15 minutes analysis frequency) | 2.5 L for the 16 mm cell 5 L for the 26 mm cell |
Number of streams | 1, 2 with integrated switching valve Other with external sequencer |
Power supply | 100 – 240 VAC 50/60 Hz |
Analog Output | 4-20 mA outputs |
Digital Output | Modbus RTU RS485 |
Alarms | 4 SPDT programmable potential free relays |
Operating Temperature | 41 – 113 °F (5 – 45 °C) |
Humidity | 10 to 90% non-condensing |
Installation | Panel mount, Wall mount, Rack mount |
Ingress Protection | IP 65 |
Dimensions (H x W x D) | 23.6 x 15.0 x 8.2 in / 606 x 380 x 209 mm |
Weight | Approx. 44 lbs (20 Kg) |
• Power Utility
• Cooling water
• Drinking water
• Boiler feedwater
• Industrial and municipal wastewater
• Surface water