Monday, June 25, 2018

Accurate, Easy-to-Calibrate Online Turbidity Monitoring Solution with a Low Cost of Ownership

MTOL+MTOL+ is the next generation of online turbidimeters from HF scientific. The MTOL+ Online Process Turbidimeter has been specifically designed to meet regulations of EPA 180.1 and ISO 7027.

Benefits:
  • Fast and Easy Calibration - Primary calibration can be completed in less than 5 minutes.
  • Low Volume Sample Chamber - Reduces calibration costs and provides quick response times.
  • Long Lasting Light Source - Field replaceable if necessary.
  • Low Maintenance Fail Safe Design - Simple modular design. Easy to operate & service. No external controller needed.
  • Bubble Rejection System - Eliminates bubbles without delaying response time.
  • Value - High quality with many features.
New Features:
  • Data logging and storage of 1 year’s measurement and calibration data
  • Variable user-selectable logging interval from 1 to 60 minutes
  • Download data via USB
  • Software updates via USB
  • Isolated 4-20mA output standard
  • 4-20mA and RS-485 Modbus outputs simultaneously
  • Ultrasonic cleaning standard
Alliance Technical Sales
https://alliancets.com
630-321-9646

Monday, June 18, 2018

Thermocouples for Process Measurement

Thermocouples for Process Measurement
Industrial Thermocouples
A thermocouple is a device which functions as a temperature sensor. Two wires, made of dissimilar metals, are joined together at both ends. The thermocouple is, at this point, a thermoelectric circuit with current flowing in relation to the temperature at each junction.  The temperature of one junction is known and constant, called the cold junction. The other junction is placed in contact with the media or object to be measured. The closed circuit of the thermocouple subsequently gets broken at the center, and the open circuit voltage from the hot junction is a direct function of the junction temperature. Heating or cooling the sensing junction of the two metals produces a voltage directly correlating to the temperature.

Industrial ThermocouplesThere are a number of metal combinations used to produce industrial thermocouples. Each combination has a respective set of performance attributes, operating temperatures, tolerances, and cost that may deliver best performance for a particular use.

Common Thermocouple Types and Composition

  • Type J (Iron / Constantan)
  • Type K (Chromel / Alumel)
  • Type T (Copper / Constantan)
  • Type E (Chromel / Constantan)
  • Type N (Nicrosil / Nisil)
  • Type B (Platinum / Rhodium)
  • Type R (Platinum / Rhodium)  

Generally, thermocouple sensor assemblies, often a tube enclosing the thermocouple junction, can be grounded, ungrounded, or exposed. The wires constituting the tip of a grounded probe are attached to the inside of the probe wall, allowing for maximal heat transfer through the probe wall to the junction while maintaining a physical separation between the junction and the measured media or object. The difference between grounded thermocouple probes and ungrounded thermocouple probes is that in ungrounded probes, the junction is not attached to the probe wall. For this reason, ungrounded probes can exhibit slower response time, but do provide electrical isolation of the junction from the housing. An exposed thermocouple will have the junction protruding from the probe tube or perforations in the tube to allow actual contact between the measured material and the junction. While this provides very rapid response, the junction is exposed to damage and wear.

Thermocouples
Various Thermocouple Styles
Thermocouples are useful for process measurement due to their size, response, ruggedness, accuracy, cost, and wide range of available form factors. Chemical and petroleum refineries, as well as other fluid processing operations, can use multiple thermocouples to control, limit, test, log, and monitor process-related temperatures. Temperature is one of the most measured parameters in industry. Understanding the temperature range being measured, the accuracy level required, and the related process vibration concerns of each industry will aid in selecting the proper thermocouple for an application. When properly matched to the application requirements, thermocouples are a durable and cost-effective process measurement option.

Download your temperature sensor selection catalog here.

Contact Alliance Technical Sales with your temperature sensing requirement. Their application engineers will help you select the best sensor for the job.

Wednesday, June 6, 2018

Analytical Measurement Solutions for Optimization of Your Brewing Process

Brewing Stage Diagram
Stages of brewing and areas for process measurement.
The beer market is currently experiencing an intense globalization process, reflected in escalating competitive and cost pressures. In addition to this, there is growing diversification into new, innovative beverages that demand maximum production flexibility. The time to market is becoming ever shorter, and product quality has to be guaranteed at a consistently high level, accompanied by an increase in productivity.

In-line Measurements in the Brew House

Proper process control plays a vital role in determining the flavor, foam stability, and color of the finished beer. The relative measurement sensors are exposed to high temperatures, and solid particles and turbidity constituents, and must be capable of surviving multiple CIP cycles.
InPro 8600 Turbidity Sensor
Turbidity Sensor

Measurements in the Fermentation and Storage Cellars

At standard fermentation temperatures, propagation of microorganisms is detrimental to the beer. In order to prevent this from occurring, hygienic plant design and use of materials resistant to CIP solutions are important criteria, as they are for in-line sensors.

DO and CO2 Sensors
DO and CO2 Sensors

Measurements in CIP Systems

The economic use of fresh water, as well as the multiple use of cleaning solutions, present a further basis for achieving overall cost reduction in line with the strive for greater efficiency of the brewing process. Here also, in-line systems are of help in monitoring and optimizing the relative sub-processes.

Measurements in Wastewater Treatment Facilities

Fouling of sensors in wastewater leads to uncertainty about the measurement results and can even result in measurement system failure. METTLER TOLEDO provides efficient and practical solutions in the wastewater treatment areas as well.

You can download the full "Analytical Measurement Solutions for Optimization of Your Brewing Process" brochure here, or view it in the embedded document below.