Force Flow Scales Safely Monitor Chemical Usage

Force Flow Scales Safely Monitor Chemical Usage
IBC tote scale and electronic Chem-Scale from Force Flow

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The IBC tote scale and electronic Chem-Scale from Force Flow enable operators to safely track chemical usage and comply with reporting regulations. Both scales warn of dangerous over- and underfeed conditions, prevent systems from running empty and offer remote monitoring that reduces the risk of chemical exposure.

“In a treatment plant, probably the No. 1 thing that is monitored with the tote scale is polymer,” says Mike Townsend, sales and marketing manager for Force Flow. “Polymer is typically the most expensive chemical a treatment plant purchases.”

Using a weigh scale for polymer helps operators fine-tune the amount being fed to achieve maximum removal of suspended solids. If you overfeed, not only are you throwing money away, you can be reducing the effectiveness of the polymer.

The tote scale utilizes weighing technology to create a reliable, non-contacting chemical monitoring system that avoids problems other monitoring technologies face caused by irregular tank shapes, corrosive chemical fumes, fluctuating temperatures and changes in specific gravity.

“By tracking the weight, not only do you know when you’re running out and need to switch totes, you also know at all times the status of your chemical inventory,” Townsend says. “You could use other technologies like level probes or ultrasonic sensors, but when you’re talking about IBC totes, a scale is perfect because you don’t need to insert anything into the tote. Simply place it on the scale deck.”

Unlike the tote scale, the Chem-Scale is designed for nonportable vessels. It can monitor sodium hypochlorite, poly-orthophosphate, sodium bisulfate, fluoride, caustic and alum, as well as polymer.

“The tote scale has a backstop that makes it easy for the operator to quickly position the tote,” Townsend says. “A Chem-Scale has a tank-restraint clip in each corner to hold the tank stationary.”

Chem-Scales are designed to handle from about 55- to 500-gallon tanks and can send signals to a PLC or SCADA system, enabling operators to remotely monitor the chemical and limit exposure. Options include auto-refill, 316 stainless steel and MaxSense high-accuracy models for special applications, such as monitoring brine tanks.

Instrumentation options enable operators to view basic weight information or more advanced data such as how much has been fed over a 24-hour period, current feed rate and how many days until the tank needs refilling.

“Usually you’ll have a metering pump attached to your day tank,” Townsend says. “If that vapor locks or has a problem, you might still be getting a signal from your pump saying you’re feeding and the system is running, but there’s no loss of weight on the scale. So you can go and address that. It’s another line of knowledge in the process.” 800/893-6723;


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