The full picture of Phosphorus removal: Total Phosphorus and Orthophosphate
You spend a lot of time looking at your data and your process, so you never come close to any compliance issues while managing your environmental and regulatory goals. When you choose the new EZ Series Total Phosphorus and Orthophosphate analyzer from Hach®, you’ll get industry-leading technology with the power to measure both parameters in one analyzer for a full picture of your Phosphorus removal process. Full process insight gives you the confidence to take action.
Stay in control
Monitor your Phosphorus removal process with the reliable data and insights you need to act quickly and with confidence. Phosphorus discharge permits evolve, and the EZ Series Total Phosphorus and Orthophosphate analyzer helps you quickly and accurately get both measurements to ensure permit compliance.
See the total picture
Be confident in your process. You employ biological treatment and/or chemical precipitation to remove Phosphate, but the ratio of effluent TP vs. ortho-PO4 may vary throughout the day. The new TP/PO4 analyzer will get you actionable data for both parameters with one device. Continuous monitoring will enable you to detect trends. You’ll always see both forms of Phosphorus in your water.
This isn’t simple, but we’ll help you simplify
Sampling for lab analysis can be time-consuming, costly, and incurs a delay, whereas continuous monitoring helps you to understand the process conditions much faster. The new combined analyser will make your day easier with features that help you save hands-on time. Cooling water is no longer needed. You’ll enjoy the autocalibration, self-cleaning and automatic validation this analyzer provides. Ready to use reagents and the unparalleled Hach service and support are there to help you optimize your work.
Feature | Details |
Parameter | Total Phosphorus (TP) and/or Orthophosphate (PO4-P) |
Measurement Method | Colorimetric measurement at 700 nm using ascorbic acid reduction and molybdate color solution after persulfate digestion in acidic medium, conform with APHA 4500-P |
Range | EZ782x: 0.005 - 1 mg/L TP up to 0.5 - 50 mg/L TP EZ786x: 0.005 - 1 mg/L TP/PO4-P up to 0.5 - 50 mg/L TP/PO4-P |
Precision | Better than 2% full scale range for standard test solutions |
Lower Limit of Detection | ≤ 0.005 mg/L |
Interferences | Arsenic (V), Chromium (VI), Copper (II) > 10 mg/L, Iron (III) > 10 mg/L, Sulfide > 2 mg/L, and Vanadium (V), Silica > 60 mg/L. Large amounts of color and turbidity interfere. Fats, oil, proteins, surfactants and tar. |
Cycle Time | Standard measurement cycle time for TP or both TP & Orthophosphate: 30 minutes |
Automatic Cleaning | Yes |
Calibration | Automatic, 2-point; frequency freely programmable |
Validation | Automatic; frequency freely programmable |
Ambient Temperature | 10 - 30 °C ± 4 °C deviation (50 - 86 °F ± 7.2 °F deviation) at 5 - 95% relative humidity (non-condensing) |
Reagent Requirements | Keep between 10 - 30 °C (50 - 86 °F) |
Sample Pressure | By external overflow vessel |
Sample Flow Rate | 100 - 300 mL/min |
Sample Temperature | 10 - 30 °C (50 - 86 °F) |
Sample Quality | Maximum particle size 100 µm, < 0.1 g/L; Turbidity < 50 NTU |
Power | 230 VAC, 50/60 Hz 120 VAC, 50/60 Hz Max. power consumption: 440 VA |
Instrument Air | Dry and oil free according to ISA-S7.0.01-1996 quality standard for instrument air |
Demineralized Water | For rinsing / dilution |
Drain | Atmospheric pressure, vented, min. Ø 64 mm |
Earth Connection | Dry and clean earth pole with low impedance (< 1 Ohm) using an earth cable of > 2.5 mm² |
Analog Outputs | Active 4 - 20 mA max. 500 Ohm load, standard 1, max. 8 (option) |
Digital Outputs | Optional: Modbus (TCP/IP, RS485) |
Alarm | 1 x malfunctioning, 4 x user-configurable, max. 24 VDC/0.5 A, potential free contacts |
Protection Class | Analyzer cabinet: IP44<br>Panel PC: IP65 |
Material | Hinged part: Thermoform ABS, door: plexiglass Wall section: Galvanized steel, powder coated |
Dimensions (H x W x D) | 690 mm x 465 mm x 330 mm |
Weight | 25 kg (55 lbs.) |
Certifications | CE compliant / ETL certified |
