Calibrating a streaming current monitor (SCM) is often one of the more challenging aspects of coagulation control.
With many SCMs, zero and span must be adjusted independently, changes can interact, and multiple jar tests are typically required to achieve acceptable alignment. Calibration may take hours, or days, and often depends on detailed knowledge of both plant operation and the specific instrument. In addition, analogue signal processing, dampening, and filtering can introduce significant measurement delay, with final readings delayed by up to several minutes.
The AccuFloc AF9000 is designed to eliminate all these limitations.
Since 2003, AccuFloc SCMs have utilized FFT‑based digital signal processing, enabling faster signal stability, reduced noise sensitivity, and significantly simplified calibration.
Technical features and operational advantages of the AF9000 SCM include:
* Integrated zero and span calibration activated by a single button press (3 seconds) following a jar test
* High‑speed measurement updates with final values available in as little as 0.1 seconds (2‑second default)
* Digitally processed signal output for improved stability and repeatability
* Rapid response to raw water quality changes, supporting immediate coagulant dose correction
* Improved treated water consistency and measurable reductions in chemical consumption
*Able to support fast control strategies, including Direct Filtration Coagulation Control
The simplified calibration process improves understanding and reduces operator dependency and variability, allowing consistent results across shifts and experience levels.
The fast measurement response enables tighter control loops and improved performance during variable raw water conditions.
AccuFloc also provides on‑site or online training, ensuring operators and engineers can fully leverage the instrument’s capabilities.
If you require a proven high‑performance SCM with fast response, low maintenance, and operator‑independent calibration, contact us for technical information, pricing, or referral to a local representative.


