Phosphates
Phosphates
PO43-
Applications
- Power Utility
- Cooling water
- Drinking water
- Boiler feedwater
- Industrial and municipal wastewater
- Surface water
Description
The determination ranges of the phosphate analyzer vary from trace μg/L to 2000 mg/L PO43- using the (optional) internal dilution module. Ranges also depend on the method used.
Method
Molybdate reacts in acid medium with orthophosphate to form phosphomolybdic acid, which is then reduced to intensely colored molybdenum blue. The absorbance intensity is proportional to the phosphate concentration in the sample and is determined at 850 nm.
Reagents
- Phosphate blue reagent kit 500 ml r1 r2
- Phosphate blue reagent kit 1l r1 r2
- Phosphate blue reagent kit 2l r1 r2
- Phosphate blue reagent kit 5l r1 r2
- Phosphate blue reagents ready to use 1l r1 r2
- Phosphate blue reagents ready to use 2l r1 r2
- Phosphate blue reagents ready to use 5l r1 r2
Standard solutions
- Certified phosphate standard solution 1000 ppm 500ml
- Phosphate standard kit 1000 ppm 1l
- Phosphate standard solution 1000 ppm 500ml
- Phosphate standard solution 1000 ppm 1l
- Certified phosphorus standard solution 1000 ppm 500ml
- Phosphorus standard kit 1000 ppm 1l
- Phosphorus standard solution 1000 ppm 500ml
- Phosphorus standard solution 1000 ppm 1l
Features
| Range (Ø 26 mm) |
4 ppm P-PO4 (12.5 ppm PO4) |
| Range (Ø 16 mm) |
10 ppm (as P-PO4) |
| Range (with dilution) |
400 ppm P-PO4 (1200 ppm PO4) |
| Wavelength | 850 nm |
| Number of reagents | 2 |
| Min. analysis time | 8 minutes |
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.
Reagents
- Phosphate yellow reagent kit 1l r1
- Phosphate yellow reagent kit 5l r1
- Phosphate yellow reagents ready to use 1l r1
- Phosphate yellow reagents ready to use 2l r1
- Phosphate yellow reagents ready to use 5l r1
Standard solutions
- Certified phosphate standard solution 1000 ppm 500ml
- Phosphate standard kit 1000 ppm 1l
- Phosphate standard solution 1000 ppm 500ml
- Phosphate standard solution 1000 ppm 1l
- Certified phosphorus standard solution 1000 ppm 500ml
- Phosphorus standard kit 1000 ppm 1l
- Phosphorus standard solution 1000 ppm 500ml
- Phosphorus standard solution 1000 ppm 1l
Features
| Range (Ø 26 mm) |
10 ppm P-PO4 (30 ppm PO4) |
| Range (Ø 16 mm) |
16 ppm (as P-PO4) |
| Range (with dilution) |
640 ppm P-PO4 (2000 ppm PO4) |
| Wavelength | 430 nm |
| Number of reagents | 1 |
| Min. analysis time | 8 minutes |
Technical Specifications
| Model | 3S-CL |
| Sampling Mode | Batch, with freely settable frequency. |
| Sample | Pressure: Atmospheric Temperature: 5 ‐ 45°C (41 ‐ 113°F) Flow Rate: 80 to 500 mL/min Connection: 6 mm (¼-in.) |
| Drain |
Pressure-free drain Connection: 12 mm (½-in.) |
| Input Streams | 2 |
| Material | Epoxy-coated stainless steel AISI 304 |
| Dimensions (H x W x D) | 604 x 380 x 210 mm (23.6 x 14.8 x 8.2 in) |
| Weight | 20 kg (44 lbs) |
| Power Supply |
Input Voltage: 115 VAC,230 VAC,24 VDC Power consumption: max. 80 W |
| Output signals |
2 x 4-20 mA analog outputs Modbus via RS485,Ethernet |
| Alarms | 2 SPDT programmable voltage-free relays |
| Digital Input | None, Online, Start Extra, Skip Idle, Emergency Stop |
| Ambient Temperature | 5 - 45 °C (41 - 113 °F) |
| Ambient Humidity | 10 - 90 % RH (non-condensing) |
| Protection Grade | IP54 (indoor only, outdoor use possible with external cabinet, not included) |