Monday, October 24, 2016

New Website Design for Alliance Technical Sales

home page of website for alliance technical sales
Alliance Technical Sales has a redesigned website
Alliance Technical Sales, manufacturer's representative and distributor of industrial process measurement and control equipment, has released a newly designed website which brings new functionality and easy navigation for visitors.

The newly designed site provides simple and rapid access to technical information regarding an array of process measurement and control products. Direct links to represented manufacturers is provided, as well as simple contact avenues to get visitors information quickly. The site is mobile friendly, adjusting its layout to accommodate whatever device the visitor is using and provide easily readable page views.

ATS now has an ongoing social media presence, with weekly blog posts about products and technical issues. All of the social media channels are directly accessible from the website.

Alliance Technical Sales is fully committed to providing top flight service to its customers. Visit the new website and reach out to ATS with your process measurement and control challenges.

Tuesday, October 18, 2016

Optical Sensor for Dissolved Oxygen Monitoring in Breweries



Dissolved oxygen measurements are an essential part of the brewing process. Keeping oxygen out of beer is a key production goal of brewers on any scale, since oxygen noticeably diminishes the taste of beer.

The measurement levels for oxygen are very low, so a sensor with high accuracy and response is needed. Hygienic construction and the ability to accommodate CIP operations is also a plus. Any features that reduce maintenance time budget enhance the value of the instrument.

The video, provided by Mettler Toledo, provides useful insight into how their optical DO sensor can benefit a brewing operation.

More detail, as well as application assistance, is available from product specialists. Combining your process knowledge and experience with their product application expertise will deliver effective solutions.

Tuesday, October 11, 2016

Transformer Monitoring for Hydrogen, Moisture, and Temperature

transformer moisture hydrogen temperature monitor transmitter
Specialized transmitter for monitoring moisture,
hydrogen, and temperature levels in electrical
transformers. (Vaisala)
Electrical transformers are an intricate part of the power transmission and distribution system. Many transformers are insulated with mineral oil that also facilitates heat transfer for unit cooling. Abnormal thermal and electrical stresses, such as local overheating and electrical discharge ocurring in the transformer, cause decomposition of insulating oil and papers, resulting in production of a range of gases, one of which is hydrogen.

Routine dissolved gas analysis, or DGA, is performed on oil filled transformers to provide a measure of unit health. The process involves the extraction of an oil sample from the transformer, which is then subjected to laboratory analysis. The process is manual, time consuming, and only performed infrequently. It is known that the presence or increasing levels of certain gases is an indicator of internal faults or general wear and tear in a transformer. A reliable stream of data can provide value as a predictive indicator of overall transformer health and maintenance requirements. The endgame is to prevent unit failure and the resultant shutdown of connected customer equipment.

General recommendations call for trend monitoring of hydrogen. The rate of change in the concentration can be more indicative than the overall level in some cases. Any rapid change is a harbinger of potential problems. Adopting a proactive approach, based on transformer oil condition, can extend transformer useful life.

Moisture content of transformer oil is another concern. The presence of water boosts oil and paper insulation deterioration. Water presence in transformers generally has two potential sources, atmospheric and internal. The sources of moisture in the oil are not a subject of this article, but water reduces the dielectric strength of insulating oil and can facilitate corrosion or other material degradation within the transformer case.

Internal temperature is an indicator of the current operating condition of a transformer and is useful in evaluating its performance.

All three of the parameters mentioned, moisture, hydrogen, and temperature, are continuously measured by the new MHT-410 from Vaisala. The transmitter provides three isolated loop powered 4-20 mA outputs that provide the user with continuous data on moisture content, hydrogen concentration, and oil temperature. The compact unit installs easily in less than 30 minutes to provide online monitoring of insulating oil without any need for pumps, membranes, or sampling.

The new MHT410 provides real time transformer health monitoring, as well as information on transformer fault situations. You can find out more with a review of the data sheet included below. Reach out to a product specialist with your measurement challenges.


Wednesday, October 5, 2016

Magnetostrictive Level Transmitter Retrofit to Magnetic Level Gauge

magnetic liquid level gauge fitted with low profile magnetostrictive transmitter
This magnetic level gauge has been fitted
with a magnetostrictive transmitter to
provide a continuous process level signal
Jogler
A magnetic liquid level indicator provides a reliable and highly visible reading of its indirect level measurement in tanks and vessels. While useful for local visual indication of tank level, the instrument does not provide an electrical signal output that can be utilized for process control or other monitoring functions. Several magnetic level gauge manufacturers offer combination units that incorporate another measurement technology to provide an analog signal corresponding to liquid level.
What if your installation has an existing magnetic level indicator and you need an analog level signal?
One manufacturer, Jogler, offers a magnetostrictive level measurement instrument that can be retrofitted to an existing magnetic level gauge, even those from other manufacturers. The low profile waveguide mounts slightly away from the existing magnetic level unit to isolate it from temperature and vibration. It is specifically designed for use with an existing magnetic level indicator and provides an analog output signal that is accurate, stable, and responsive.

A magnetostrictive level measurement instrument employs a magnetic float that moves along a sensing wire as the tank level changes. Fixed interval current pulses are sent down the wire, with the resulting electromagnetic field being interrupted by the magnetized float. This interruption causes magnetostriction in the sensing wire, which is manifested as a torsional stress wave along the wire. A piezoceramic sensing element converts the torsional stress into an electrical signal and the transmitter produces an output signal based upon the time interval between the initial pulse and the return pulse produced as a function of the float position.

There is more to be learned, so share your liquid level measurement requirements and challenges with instrumentation specialists. The combination of your process knowledge and their product application expertise will produce effective solutions.