Aulick is committed to improving treatment methods with the goal of partnering with Drinking Water Systems in the Southeast U.S. With our in-house manufactured phosphate technologies, Verus and Clarus, we studied:
- Corrosion control
After successful and on-going use in water systems across the region, we’ve found that our proprietary phosphates have maximized their capabilities in performing the three basic functions we set out to achieve.
In addition to our custom blended phosphates, Aulick also provides the tools necessary to ensure optimal corrosion control treatment for our customers. Continue reading to see how Aulick continues to support Drinking Water Systems in the Southeast U.S (the meters featured below can be integrated into current coupon racks or supplied by Aulick upon request).
CM85 Corrosion Meter
Aulick’s CM85 Corrosion Meter is a compact corrosion transmitter used in the water treatment industry that measures general corrosion, localized corrosion (pitting), conductance, and transmits that information to operators via 4 to 20mA / HART® protocol in real time. The corrosion rate or pitting factor is configured as the primary variable using a standard 2-wire 4 to 20 mA output. The remaining outputs are configured as secondary and tertiary HART variables.
The CM85 utilizes state-of-the-art algorithms and data analysis techniques to accurately measure general corrosion rate and pitting. Harmonic distortion analysis (HDA) is applied to improve the performance of the industry-accepted linear polarization resistance (LPR) technique used to measure corrosion rate.
LPR Probe-72 Corrosion Meter
The LPR Probe-72 is a microprocessor-based, field-mountable corrosion rate meter. This versatile instrument measures the instantaneous corrosion rate and electrochemical current between the electrodes of any standard 2-electrode linear polarization resistance (LPR) probe. Corrosion rate is displayed on the LCD display.
Corrosion rate measurements are made using the linear polarization resistance technique. The instrument measures the current required to polarize the electrodes of a probe to a known potential. From the polarization potential and the measured current, polarization resistance can be calculated. Then, using Faraday’s law, instantaneous corrosion rate is calculated from polarization resistance.
Corrosion Coupons are a trusted methodology used to verify corrosion control strategies in the water distribu- tion system. Coupon testing provides a measurement of the impact of long term treatment changes. Although coupon testing is an often omitted practice in today’s drinking water treatment space, this kind of testing works as an integral component to a comprehensive OCCT Program.
Accurate monitoring of corrosion rates in any environment is critical when viewed in terms of the maintenance and repair costs associated with corrosion and material failure. Test coupons provide an inexpensive means of on-line monitoring that will allow you to effectively measure the corrosivity within your system. By observing the mils-per-year corrosion rate of an exposed coupon, valuable information can be provided regarding the material’s life expectancy.