SE 554 Memosens pH Sensor

September 28, 2018
Category: Product Highlight

SE 554 Memosens pH Sensor 

pH Sensor for Liquids with Suspended Solids

The SE 554 Memosens pH sensor is ideal for use in liquids with suspended solids and high ionic strength. This low-maintenance sensor is constructed using Alpha pH glass, 2 open hole junctions & a solid polymer electrolyte with high KCl concentration. These features provide stable performance and long life in the most difficult applications.

The integrated NTC 30K temperature element assures that all pH measurements are accurat... Continue reading

Tags: SE 554 ph ph sensor solids

1st and 2nd Carbonation

September 17, 2018
Category: Application Success Story
Reduced Maintenance and Downtime in 1st and 2nd Carbonation using an Automatic Cleaning System & Pre-calibrated pH Sensors

Liquid analytical measurements in sugar refineries are  challenging due to the processes needed to convert the sugar contained within the sugar beets into a concentrated liquid called thick juice.


Critical steps in the sugar purification process are 1st and 2nd carbonation. Continuous pH monitoring is needed to ensure the efficiency of the carbonation stage. Because of the potential for excess... Continue reading

Tags: sugar ph memosens sensogate cl-90 1st carb 2nd carb

Top 4 Reasons to Use a Gel-filled pH Sensor in Low Conductivity Water

June 29, 2018
Category: M4 Top 4
Top 4 Reasons to Use a Gel-filled pH Sensor in Low Conductivity Water

Need a reliable pH measurement in boiler or RO water?  As long as the conductivity of your measured medium is above 10µS/cm there is no reason to use a liquid-filled sensor. Gel-filled sensors provide a low-cost, low-maintenance alternative without compromising performance.

Continue reading
Tags: pH SE 558 Low-Conductivity Water Gel-Filled Sensor Ultra-Pure Water

Product Highlight: SE 558 pH Sensor

June 28, 2018
Category: Product Highlight

SE 558 Memosens pH Sensor 

pH Sensor for Low Conductivity Liquids

The SE 558 Memosens pH sensor is ideal for use in high purity water. This low-maintenance sensor is designed for use in applications with a conductivity of >10 μS/cm. Constructed using Alpha pH glass, 3 ceramic junctions, and a KCl reservoir, the SE 558 is a great alternative to high-maintenance, liquid filled pH sensors. An integrated NTC 30K temperature element assures that all pH measurements are accurately compensated for the temperature... Continue reading

Tags: pH SE 558 Low-Conductivity Water Gel-Filled Sensor Ultra-Pure Water

Product Highlight: SE 555

April 29, 2018
Category: Product Highlight

SE 555 Memosens pH Sensor

pH Sensor for Aggressive Media & High Temperatures

The SE 555 Memosens pH sensor is ideal for use in a wide range of applications. The sensor is designed to withstand extreme pH ranges, aggressive media, and applications requiring frequent CIP or SIP cleaning. An integrated NTC 30K temperature element assures that all pH measurements are accurately compensated for the temperature of the process media. The pressurized reference system, along with the Silamid reference electrode, help to ext... Continue reading

Tags: SE 555 pH CIP SIP Aggressive High Temperatures

pH Monitoring on the Packaging Line

April 23, 2018
Category: Application Success Story
Reduced Downtime in Brewing with Pre-calibrated pH Memosens Sensors Designed for Longer Sensor Life

pH is monitored at the filler in each packaging line, right before the product is bottled or canned. Downtime is unacceptable and costly.

Being the final quality assurance measurement, high precision is required. Any drift, delayed response, or inaccuracy must be immediately addressed through calibration or sensor replacement. 

Typical  contributors to unreliable sensor performance are:

Moisture in the sen... Continue reading
Tags: Memosens pH beer brewing SE 555 transmitter

Product Highlight: CL-90 Cleaning System

February 27, 2018
Category: Product Highlight

CL-90 Cleaning System

Simple Electro-Pneumatic Cleaning System

The CL-90 electro-pneumatic cleaning system is a cost-effective tool that helps address pH, ORP, and dissolved oxygen sensor performance issues in processes containing suspended solids.  When paired with the Stratos Evo transmitter and Sensogate WA 131 pneumatic retractable holder, the CL-90 provides a compact engineered solution for the automat... Continue reading

Tags: CL-90 Cleaning System Cleaning System Suspended Solids

Corn Mash Slurry Monitoring

February 25, 2018
Category: Application Success Story
Reduced Maintenance and Downtime in Corn Mash Tanks using
an Automatic Cleaning System and Pre-calibrated pH Sensors

The slurry of a corn mash tank contains liquids and fine solids particles. The thick slurry can quickly plug the junction/diaphragm of a pH sensor causing it to drift. This often requires frequent maintenance to clean the junction and recalibrate the sensor. In some cases the sensor is just replaced with a new one. Removing a pH sensor by hand from the process can be dangerous due to high temperatures and pressures.... Continue reading

Tags: ethanol pH cleaning corn corn mash retractable holder cleaning system

Product Highlight: SE 515

January 26, 2018
Category: Product Highlight

SE 515 Memosens pH Sensor

pH Sensor for Simple Water Applications

The SE 515 Memosens pH sensor is ideal for use in water and wastewater treatment applications.

The sensor is designed to withstand plugging media, low temperatures, and to maintain a reliable measurement in low-ionic media. An integrated NTC 30K temperature element assures that all pH measurements are accurately compensated for the temperature of the process media. The low price of this sensor, along with the integration of Memosens techno... Continue reading

Tags: SE 515 Water Water Treatment pH Memosens

Raw Water Inlet Monitoring

January 25, 2018
Category: Application Success Story
Reduced Operational Costs in Raw Water with Pre-calibrated
pH and ORP Memosens Sensors

The raw water inlet is an important point in the water treatment process. Reliable pH and ORP measurements are necessary for proper operation of the facility. Raw water comes from storm drains, rivers, ponds, and lakes and contain a variety of contaminants. The pH and ORP sensors must be able withstand the process and still provide a reliable measurement.

The SE 515 Memosens pH sensor is specifically designed for use in water treatme... Continue reading

Tags: Raw Water Water Water Treatment pH ORP SE 515 SE 564 Memosens

How many pH sensors did we throw away last month?

November 09, 2017
Category: Memosens
The value of enhanced sensor diagnostics

Remember when it was the screech under the hood or the burning oil smell that told you something was wrong with your car? What did we do before our cars told us it was time for service? We didn’t just get rid of our car and buy a new one, we brought it to the mechanic for evaluation and repair.  

Today, we have clear diagnostics on our car’s dashboard that pinpoint the problem and indicate when it’s time for service. The same benefit is available with Memosens smart pH sensor te... Continue reading

Tags: Memosens portable meter Portavo Protos Stratos transmitter analyzer

Wet Gas Scrubbers pH Control

October 18, 2017
Category: Application Success Story
Environmental Safety through Critical pH Control 

Wet gas scrubber systems, also known as chemical scrubbers or gas scrubbers, are a type of air pollution control system that removes particles and hazardous gases from industrial exhaust streams.    

The scrubber uses caustic liquids and injects them into the ventilation stack. This traps particulates and neutralizes the acid in the gas stream which then falls down to the bottom of the stack. The liquid that is collected is then sent to the wastewater treatment pla... Continue reading

Tags: pH transmitter portable meter calibration gas scrubber scrubber wet gas

Conductivity, ORP and pH Measurements in Reverse Osmosis Systems

September 01, 2017
Category: Application Success Story
Better Chemical Dosing Control Extends  Filtration Membrane Life

Reverse Osmosis (RO) is a purification process which removes Total Dissolved Solids (TDS) in water by applying pressure to feedwater, forcing it through a semi-permeable membrane and allowing pure water to diffuse.

Conductivity is an important measurement for RO. Having the ability to measure a very low conductivity accurately is critical. Using a conductivity electrode is a common way to test RO water quality and membrane performance. Ultra pure water is... Continue reading

Tags: Reverse Osmosis Conductivity ORP pH

How accurate is my pH sensor?

August 25, 2017
Category: Memosens

You should be asking, how accurate is my calibration procedure?

When there is an issue with pH measurement accuracy the blame is typically laid squarely on the sensor. However, calibration procedure and execution can be equally to blame. Below you will find some helpful hints that will assure you produce a repeatable, accurate calibration.


Before we dig in, let’s look at some of the key components to a successful calibration procedure:

Fresh, clean calibration standards (Buffers) and rinsing solutionpH senso... Continue reading
Tags: offline calibration pH Portavo buffer set buffers sensor data logging diagnostics

Heat Exchanger Breakthrough Detection

August 07, 2017
Category: Application Success Story
Fast and Reliable Detection with Memosens Conductivity

Heat exchangers are used throughout many industrial plants to cool and convert steam into condensate. Once the steam has turned to condensate, it’s purity is high and conductivity value is low. Condensate contamination is very costly and affects efficient operation of the plant, or even worse, the contamination can cause environmental pollution. Monitoring the conductivity of the condensate leaving the heat exchanger is a reliable method to ensure the heat exchanger is functioning pro... Continue reading

Tags: Heat Exchanger Memosens Transmitters MemoRail CSS 120 Conductivity Static Holders

It’s 3:00 AM and I’m Out Calibrating a pH Sensor

July 13, 2017
Category: Memosens

Author: Shawn Little

Whether you are on 1st, 2nd, or 3rd shift, calibrating sensors seems to always happen at the worst time. It’s pouring down rain, snowing, +100º heat at noon, or below freezing in the middle of the night. I’d rather be in a climate controlled shop doing calibrations at a time I planned. Wouldn’t you?  To me that’s a no-brainer!

In fact there are three no-brainers to me when it comes to pH calibrations:

It’s easier to calibrate a pH sensor in the shop or lab
It’s... Continue reading

CIP & SIP Process Conductivity Measurements

June 23, 2017
Category: Application Success Story
Improving Efficiency with Reliable Conductivity Measurements — CIP Cleaning Agent Control and Rinse Water Purity Monitoring

Conductivity measurements are used to control the CIP process as well as monitor the purity of the water used during rinsing cycles. Unreliable measurements can cause downtime or even worse, contaminated batches due to leftover product or detergents.

M4 Knick’s SE 680 Memosens® toroidal conductivity sensor is a great choice for integration into the rinsi... Continue reading


It’s Probably the Cable!

May 31, 2017
Category: Memosens

In the pH business, most measurement performance issues are blamed on the sensor. The sensor is the primary measurement element of the loop and is directly exposed to the process. Therefore, it must be the source of the problem, right?

In my experience, most pH problems are typically caused by something more rudimentary. It is these two factors that are oftentimes overlooked – sensor connections and cables.

In this post, I’ll be focusing on the cable. Continue reading

Tags: Memosens cable coax coaxial pain

Industrial Wastewater

May 10, 2017
Category: Application Success Story
Confidently Meeting Environmental Compliance Requirements — Wastewater pH, ORP, and dissolved oxygen monitoring

Depending on the feed entering the wastewater facility there can be a wide range of pH. Very low pH liquids can damage parts of the treatment system and potentially kill the good bacteria in the clarifier. Knowing in advance that low pH liquid is entering the process allows the operators to divert influent to protect the system. Because the SE 555 pH electrode is designed for dif... Continue reading


Remote pH Monitoring

April 26, 2017
Category: Application Success Story
Antiquated  Analog Technology vs. M4 Knick Digital Loop — Utilizing a Solar-Powered Engineer Solution

With traditional analog pH/ORP technology there are a number of challenges customers face.

An analog connection to the sensor is typically not submersible. M4 Knick’s digital Memosens® sensor connections are inductive. This is unlike all other digital and analog systems which use a conductive non-submersible connection. To get around this manufacturers will “pot” the cable into the sensor which forces the customer to completel... Continue reading


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