News & Events
What is ORP (Oxidation Reduction Potential) and mV?
When you want to disinfect water with oxidants such as ozone, bromine, or chlorine, ORP can be used as a method to determine how effective the disinfection is. Different applications will require different ORP (mV) levels. This article will attempt to explain. ORP stands for oxidation reduction potential. An ORP sensor (or probe) measures the ORP…
Why ASTM Coupon Racks?
A Corrosion Coupon Rack is an assembly of pipework that houses 1 or more metal coupons suspended in the water flow through the pipework of the coupon rack. The coupons are basically a piece of metal that are accurately weighed before being inserted into the rack. When they are removed after a period of time, they…
What temperature will I be dosing into?
This is blog is the final part of our 4 part blog series: ‘Which EMEC Solenoid Metering Pump should I use?’ If you’d like to catch up on the past four blogs, we’ve included links for you at the bottom of this blog. In the mean time, this blog covers temperature, the temperature you will be…
Why is it important to specify what chemical I am dosing.
Not all chemicals are compatible with all chemically resistant materials. For this reason, all metering pumps have differnet options when it comes to specifying the material selection for the Liquid End. (The liquid end refers to the pump head, foot valve, injection valve and tubing, i.e. all materials which come into direct contact with this chemical…
Does the Dosing pump for my application require any Inputs (Is it necessary to control the pump externally via a pulsing contact or a 4-20mA signal?)?
Our first blog in the series (missed it? catch up here) covered the Flow Rate required and Pressure you intend to pump into. Further to this, all pumps have internal timers which regulate the speed, or frequency at which the pump’s solenoid strokes. The speed is adjusted or programmed on the pump to achieve a constant…
What Flow Rate do you require and what pressure do you intend pumping into?
The first questions to ask when selecting a Solenoid Metering Pump should be: What Flow Rate do you require and what pressure do you intend pumping into? All EMEC pumps are rated at a maximum flow rate at a maximum injection pressure (based on water at ambient temperature). For example, a KPLUS 10 05 pump’s maximum…
Water Monitoring at Jock Marshal Reserve
CWC was consulted and commissioned by Monash University regarding water monitoring at The Jock Marshal Reserve. The water monitoring consists of pH, Temp, DO, Turbidity, water flow and Conductivity with an inbuilt data logger configured to interact with Monash’s web interface. This allows students and research analysts to login and study data in real-time, hourly, weekly,…
Chlorine Dioxide Disinfection
Chlorine Dioxide (CLO2) based biological control systems are used in a variety of industries as a primary method for control of micro-organisms in water systems, from controlling bacteria in food processing to Legionella in cooling towers. Its use in the treatment of water has been driven by an increased awareness of biological related health issues. It…
Potentiometeric Measurement Principle
Here is a short video by Endress+Hauser explaining the discovery of the Potentiometric Measurement Principle in 1909 which became the basis for the development of the conventional pH scale. Our WA (Wedgewood Analytical) pH sensors/probes (Wedgewood Analytical) are a division of Endress+Hauser
Effluent Trade Waste pH Correction Batching System
Beautiworx is a contract manufacturer of hair, bath, beauty and body products. In 2013 construction began on their new premises in Dandenong South (Victoria). Mary Pearce, Beautiworx Quality Assurance Officer was keen to get their Trade Waste discharge to meet the local Water Authorities regulations. Mary contacted Convergent Water Controls in Melbourne who visited the new…
CWC Expands
We have extended the space in our Sydney branch for component assembly, repairs and special builds. We have dedicated technicians who assemble and manufacture the various components that go together with our DIGICHEM Plus+ and EMEC range of controllers. This includes a custom designed workshop and has enhanced our already excellent response to our customers requirements.
Yarra Valley Water – Trade Waste Definition
Flow Meter Selection vital for Compliance The selection of a Flow Meter for Trade Waste monitoring systems can be extremely important for compliance with your local Water Authority. Trade Waste when not properly treated can; Be detrimental to people’s health, their safety or the environment Decay or block sewer pipes Release offensive odours Place extra demands…