MemoRail Modbus Transmitter Product Highlight

June 14, 2019
Category: Product Highlight

MemoRail Modbus Transmitter 

Compact multi-parameter transmitter for process analysis

MemoRail Modbus is a compact, digital transmitter available with up to 2 sensor inputs. It is designed for use with the SE 740 optical oxygen sensor and Memosens sensors for the measurement of pH, ORP, conductivity, oxygen, and temperature. Up to 32 devices can be operated in parallel using Modbus RTU. Device address, link parameters, and data rate are selectable. 

MemoRail Modbus is a low-cost, space-savin... Continue reading

Tags: memorail modbus transmitter memosens oem

What is the difference between a 2 point calibration and process calibration?

June 03, 2019
Category: pH Principles

We’ve all experienced the discomfort of unexpected company. You get the phone call where someone lets you know they’ll be stopping by shortly. You rush to put the clutter in your house away in random cabinets and drawers. You sweep the dust and dirt behind a dresser or under a rug. You mask the disorder by making it look good temporarily. If you’re not careful, a process calibration of a pH measurement could be doing the same thing. You could just be forcing the measurement to look right temporarily. However, there are better practices to... Continue reading

Tags: calibration ph process cal two point cal

Product Highlight: MemoRail Transmitter

May 23, 2019
Category: Product Highlight

MemoRail Transmitter 

Compact multi-parameter transmitter for process analysis

MemoRail is a compact, digital transmitter for the measurement of pH, ORP, conductivity, oxygen, and temperature when connected to Memosens® sensors. Two analog active/passive 4 … 20 mA outputs supply the measurement values to a process control system. 

MemoRail is a low-cost, space-saving, alternative to traditional liquid analyzers.


Temperature:  -14 … 149 °F 

(-10... Continue reading

Tags: MemoRail transmitter Memosens

Inductive Technology: Changing the World of Liquid Analytics

May 16, 2019
Category: Memosens

Inductive technology is now commonly found in a wide array of consumer products. It transfers data, charges batteries, or directly powers devices. An innovation that's so simple, it's hard to believe the impact can be so significant.  Common products include a simple electric toothbrush, a smartphone, and implantable medical devices.

The industrial world has begun using this technology to improve measurement performance and reduce time spent maintaining equipment.  The debut of the inductive circuit is having a positive i... Continue reading

Tags: inductive pH orp conductivity oxygen liquid analytics

Type 18 pH Sensor

March 12, 2019
Category: Product Highlight
Type 18 pH Sensor

Differential pH Sensor for Aggressive Media

The Type 18 differential sensor measures pH or high-resolution pH compensated ORP. It features a rugged enamel Glasteel™ construction with an integral temperature sensor which allows the sensor to be mounted directly into the process, in any orientation, thus sensing the pH directly and without a protective cage.

Type 18 provides a low maintenance measurement by removing internal electrolyte solutions and reference junctions/diaphra... Continue reading

Tags: type 18 differential pH batch processes

10 Incredible Liquid Analysis Pick-Up Lines for your Valentine’s Date

February 13, 2019
Category: Memosens

We here at M4 Knick love three things: being in love, having a good laugh, and analytical instrumentation of course. So, we’ve got you covered this Valentine’s Day. We created a list of 10 swoon-worthy pickup lines and memes to impress your next date— liquid analysis style. 

Ok, Ok, it’s a little low-brow, but hey the analytical equipment industry is rampant with terminology just waiting to be a turned into pickup lines. Seriously, who can resist a good pH probe joke?! We sure can’t. 












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Sour Water Treatment Corrosion Control using pH

February 04, 2019
Category: Application Success Story
Improve Corrosion Control with Smart Digital pH Sensors and HART/AMS Compatible Transmitters 

Sour water is a byproduct from steam stripping of crude oil in a variety of refinery distillation processes. Sour water treatment removes ammonia and hydrogen sulfide from water, both are damaging to overhead condensers and other process piping and vessels. The flash drum removes light hydrocarbons from the sour water before the water moves... Continue reading

Tags: water treatment sour water ph portal portable meter retractable holder Memosens refining

CSR 3600 Retractable Holder

January 02, 2019
Category: Product Highlight
CSR 3600 Retractable Holder

Ball Valve Style Retractable Holder

The CSR 3600 is a simple, low-cost manual retractable holder for a wide variety of analytical measurements. It allows for easy replacement of old sensor technology as well as an option for applications requiring insertion depths of up to 36". 

The CSR 3600 can be constructed from several materials allowing for use in a wide variety of applications. The CSR 3600 is the retractable holder of choice when field installation requires a double block... Continue reading


2019 Predictions for Digital Sensing Technology in Liquid Analytics

January 02, 2019
Category: Memosens

Check out the predictions these liquid analytics professionals have provided regarding the impact digital sensing technology will have on predictive maintenance, asset management, product quality, reporting and safety in 2019. 

2019 Predictions for Digital Sensing Technology in Liquid Analytics from M4 Knick

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Tags: Liquid Analytics pH ORP Conductivity Oxygen Digital Sensors

The Truth About pH Sensor Accuracy

December 28, 2018
Category: pH Principles

A common question I get from customers about pH measurement is "How accurate is my sensor?". You'd think there would be a straightforward reply like 0.25% of range or 0.5 pH of the span. Unfortunately, it's difficult to provide a definitive answer to this question. As a matter of fact, it's rare to see an accuracy specification for most process pH electrodes. When you do see one, there are a number of exceptions. This is because there are many uncertainties and potential measuring errors, such as:

Buffer solution degradation or contaminat... Continue reading
Tags: pH accuracy calibration

Top 4 Recommendations for Maintaining your pH Sensors

November 19, 2018
Category: M4 Top 4

Are you spending a lot of money on pH sensors? Like most process instruments, proper installation and maintenance play a significant role in determining the effective life of your sensor. In this writeup we address the top four things you can do to extend the life of your pH sensors through proper maintenance. Continue reading


SE 655 Memosens Conductivity Sensor

November 02, 2018
Category: Product Highlight

SE 655 Memosens Conductivity Sensor 

Toroidal Conductivity Sensor for Liquids with Suspended Solids

The SE 655 Memosens toroidal conductivity sensor is ideal for measurements in liquids with suspended solids and high conductivities. This corrosion resistant sensor is constructed of PEEK in a smooth, easy-to-clean design and comes with an integrated 3m cable. The SE 655 is highly accurate and has a low risk of contamination because of a large sensor opening.

The robust sensor design and construction, along with t... Continue reading

Tags: conductivity memosens se 655 toroidal

pH Monitoring in Pulp Bleaching Towers

November 02, 2018
Category: Application Success Story
Maintaining pH Accuracy in Extreme Process Conditions — Significantly Reducing Chemical Usage & Ensuring Quality Pulp

The bleaching process is very challenging for pH electrodes due to plugging and chemical attack. The pulp consistency can easily reach 10% and quickly plug the junction of the many pH electrodes. The pH range of the pulp changes drastically several times during bleaching. This alternating chemical process yields extreme pH values of around 3.5 in the chlorine dioxide (ClO2) stage and a value of around 11.5 during the c... Continue reading

Tags: pulp and paper bleach tower paper pulp pH Memosens

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

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