ASIST 2.0 – Automatic Scale Inhibitor Stress Test
Product Description
ASIST 2.0 (Patent Pending) is designed to provide operators with a streamlined workflow for assessing scale inhibition levels in Oil Field Produced Water (PW). Previously a tedious task requiring manual analysis and data processing, this process can now be completed within minutes. The previous generation has proven its usefulness in major fields in the Norwegian Continental Shelf, and the latest generation offers significant upgrades and improvements.
Measurement Principle
The cuvettes rotate through a station where a light beam is passed through the solution. Formation of scale, as a result of the addition of a stress test solution (e.g. 10,000 mg/L SO42- or Ba2+), will cause any scale particles to absorb light and thus cause a decrease of light intensity at the detector. As the instrument has both vertical- and horizontal light source and detectors, it can be configured to measure either. A third option is to utilize the vertical light source and horizontal detector as a particulate 90° scattered light detection method.
Key Updates
- Rugged Design – Precision Engineered Carbon Fiber Reinforced Plastics and 6 mm thick corrosive-resistant 6082 T-6 Aluminum
- Re-design of the Electronics Circuitry to improve Signal-to-Noise Ratio
- Addition of an extra (vertical) light source- and detector that allows for a total of three detection methods
- Addition of an extra pump to allow each of the cuvettes to also be filled automatically
- New ASIST 2.0 Software with more advanced features of interpreting the data (peak detection, area integration)
Key Features
- 9 Measurement Cells (whereof one Blank)
- Dosage accuracy of ±2 µl
- Automatic filling up cuvettes with 6 mL pre-filtered PW
- Automatic Recording of Baseline
- Automatic Addition of Stress Test Solution
- Automatic Recording of Response post-stress
- Automatic Assessment of Fail based on User set threshold
- Intuitive Graphical User Interface for Windows 7 or greater
Technical Specifications
- Supply Voltage: 110-230 VAC
- Operating Voltage: 12 VDC (36W)
- Dimensions (IP65 Case): 35x30x15 cm
- Dimensions (ASIST 2.0): 25x20x8 cm
- Weight (with Case): 5 kg
- Data Acquisition: 16-bit ADC (0-4V)
- Data Resolution: 62.5 µV
- PC-Interface: USB-C