Description
High accuracy in-situ phosphate measurement
The Cycle P methodology is based on US EPA standard methods and combines precision fluidics with state-of-the-art optics to provide unparalleled precision and accuracy. Ideally suited for unattended monitoring the Cycle P includes pre-mixed onboard reagent cartridges and onboard calibration standards.
Feature
- Robust: Excellent anti-fouling capability provided by copper mesh screens and 10 µm stainless steel intake filters
- Accurate: Nanomolar resolution and scattering insensitive optical cell
- Cost Effective: Over 1000 samples including onboard spike calibration for QA/QC, typical deployment duration of three months, reducing field costs
Spesification
| Mechanical | |
| Height (w/handle) | 56 cm |
| Width | 18 cm |
| Weight in air | 6.8 kg (w/ reagents) |
| Weight in water | 0.37 kg |
| Depth | 200 m |
| Temperature *1 | 1 … 35 °C |
| Electrical | |
| Input | 10 … 18 VDC |
| Current draw | 2.0 A max; 125 mA avg |
| Data output | RS-232 or SDI-12 |
| Host Connector | MCBH-6-MP |
| SDI Connector | MCBH-8-MP |
| Sample rate | 2 per hour |
| Data memory | 1 GB |
| Optical | |
| LED wavelength | 870 nm |
| Pathlength | 5 cm |
| Linearity | equal or greater than 95% R2 |
| Analytical | |
| Detection limit, three standard deviations of 18 MOhm water | equal to or less than 0.075 µM equal to or less than 0.0023 mg/L PO4-P |
| Quantification limit, ten standard deviations of 18 MOhm water | equal to or less than 0.25 µM equal to or less than 0.0077 mg/L PO4-P |
| Standard deviation of standard solution of 2.6 µM | equal to or less than 0.05 µM equal to or less than 0.0015 mg/L PO4-P |
| Range, nominal *2 | 0 … 10 µM 0-0.3 mg/L PO4-P |
| Note: | *1 Both storage and operating temperature for sensor and reagent cartridges. *2 Higher range is possible (0 … 40 µM, 0 … 1.2 mg/L PO4-P) but is outside specifications Units: M = moles per liter. mg/L PO4-P refers to mg of atoms phosphorus per liter measured in the form of reactive phosphate. ppm ~ mg/L, ppb ~µg/L Specifications are subject to change without notice. |
