||mV/V (Scale) or 4-20mA (Ultrasonic)
||110 or 240 VAC, 5w
||Dual Line, 16 Characters/Line, Backlit LCD
||0.1 lb/kg minimum
Kgs, Gallons, Liters, Distance
4X (IP67), Structural Foam Molded
Feeding and tracking sodium hypochlorite usage in municipal water treatment systems has presented a challenge
for end users for many years. First, sodium hypochlorite degrades over time which makes inventory control and
usage documentation very tricky. Secondly, when hypo degrades, it releases gas bubbles that can often get trapped
in feed tubing and pumps causing inconsistent feed and in some cases a “vapor lock” of the pump itself. Lastly,
as sodium hypochlorite loses strength, it forms byproducts called chlorates. Chlorates are known to impair thyroid function,
and therefore regulatory officials are beginning to regulate how much chlorate can be in the water supply, and more
specifically, how much chlorate can be contributed to the water supply from the source sodium hypochlorite.
By integrating specialized software into our simple weighing / level display, the Hypo Trak can easily monitor the following:
1) an inconsistent or no feed rate condition via loss in weight (or level) to warn of a vapor locked pump, 2) integrated
timers that track how old the hypo is to warn of an excessive chlorate condition, 3) degradation curves that allow you to
track your hypo strength over time as it loses strength and 4) conversions that allow you to view & track your hypo in terms
of 100% pure chlorine gas to simplify inventory control, PPM calculations, and usage documentation.
Sodium hypochlorite (bleach) is a liquid chemical that is used for many disinfection applications including
the disinfection of public water supplies. Over the past 5-10 years, sodium hypochlorite has become more popular for water
disinfection due to the regulatory and safety concerns surrounding the use of chlorine gas. The feeding of chlorine gas is a
technology that was perfected over almost 100 years, and has been favored because it is economical, simple and reliable. Chlorine
gas is 100% pure, has an unlimited shelf life, and is easy to feed because it is chemically stable and has a consistent strength.
Sodium hypochlorite does not exhibit any of the above qualities and therefore has presented many challenges and
problems for the user. First, sodium hypochlorite is manufactured and sold in various strengths and therefore is not as simple to track
inventory or document true daily chemical usage because you need to know both quantity AND concentration. In addition, Sodium Hypochlorite
degrades as it ages depending on time, temperature, and beginning hypo strength making inventory control and usage documentation even trickier.
Secondly, when hypo degrades, it releases gas bubbles that can often get trapped in feed tubing and pumps causing inconsistent feed and in some
cases a “vapor lock” of the pump itself. Vapor locking happens when enough gas bubbles form in the pump that cause it to lose prime and thus
cease functioning. This is particularly critical in municipal water treatment systems where the hypo is being used to disinfect the water
supply. Lastly, as sodium hypochlorite degrades over time, it forms byproducts called chlorates. Chlorates are a known carcinogen, and
therefore regulatory officials are beginning to regulate how much chlorate can be in the water supply, and more specifically, how much chlorate
can be contributed to the water supply from the source sodium hypochlorite.
AN INTEGRATION OF FEATURES IN ONE DEVICE
The above problems associated with the use of sodium hypochlorite in municipal water treatment
systems can be managed and controlled manually by vigilant treatment plant operators but the HYPO TRAK system can simplify the process.
The HYPO TRAK encompasses a digital display that is connected to an electronic weighing scale or ultrasonic level sensor. By integrating
specialized software to a simple weighing / level display, we can track the following: an inconsistent or no feed rate condition via
loss in weight (or level) to warn of a vapor locked pump, timers that track how old the hypo is to warn of an excessive chlorate condition,
degradation curves that allow you to track your hypo strength over time as it loses strength and conversions that allow you to view & track
your hypo in terms of 100% pure chlorine gas to simplify inventory control and usage documentation.
VAPOR LOCK ALARM FUNCTION
A loss in weight feed rate function is not in itself unique. Calculating a given weight loss over a specific time
period allows you to detect a low or zero feed rate condition. However, using a loss in weight (level) feed rate function to single out a vapor locked
pump in a chemical feed system is unique because it is not as straight forward as it might appear. Since disinfecting a water supply is a 24/7/365 job,
it is necessary to resupply the hypo while continuing to feed to the water supply. When a hypo tank is resupplied it can be either refilled from a delivery
truck, or can have an empty drum or tote replaced with a full one. In either case, the weight (or level) will have a drastic change during this resupply, and
therefore the resupply function must be recognized as such and not a vapor locked pump. This is accomplished via a “load hypo” key on the front of the display
that allows the operator to pause the feedrate value prior to initiating resupply, and then resuming the prior feedrate value after resupply is complete.
EXCESSIVE CHLORATE ALARM FUNCTION
Like the vapor lock alarm, the chlorate alarm function is a simple feature in that we are essentially just timing
the age of the hypo to get an idea of how much chlorate has formed in the source hypo supply. This feature uses the “load hypo’ key like the above feature,
and resets the age to 0 days when the new hypo is loaded. The user then sets an alarm in the alarm menu of a specific time period at which an excessive
chlorate condition is being reached.
TRACK HYPO STRENGTH THROUGH MULTIPOINT DEGRADATION CURVE
In order for the user to know what the strength of their hypo is at any given time, this feature allows the user to
build and store 3 of their own custom hypo degradation curves (Winter, Summer & Mild) depending on their initial strength, average temperature conditions,
and length of time their hypo will be stored. The user can build up to 10 different slopes into a single curve and test periods of up to 99 days each. This
flexibility is helpful in tracking the strength of Hypo because hypo does not degrade in a straight line. It degrades slower as it gets older. The “Load Hypo”
key is used again with this feature as it prompts the user to input the beginning strength of hypo that was delivered during the resupply process.
CONVERSION TO 100% PURE CHLORINE
Since many users are accustomed to viewing their chlorine gas inventory and usage in terms of 100% pure Cl2 gas,
it is confusing when converting to hypo especially when the sodium hypochlorite is not a consistent strength from day to day. Just knowing the level or weight
of what is in their chemical tank is no longer sufficient. The user must know the level or weight AND the percent concentration to be able to identify true
inventory or true daily usage. With the assistance of the multipoint degradation curve, this device automatically makes the calculations to display the inventory
in terms of 100% pure chlorine gas.
LOAD HYPO KEY IS A KEY FEATURE