Westinghouse KX241 Digital Replacement



The Westinghouse KX241 was designed to harness technological breakthroughs that would allow the meter to achieve peak reliability and performance for both military and commercial applications. It was a rousing success. The meter performed to all the industry expectations and standards, resulting in a wide dispersal of the unit over a vast range of applications, particularly in marine environments.

The problem however, is that the KX241’s heyday was a long ways away from 2019—some 40 to 50 years. Technology, like time, only moves forward, and unfortunately the KX241 has befallen an all too familiar fate: relegation to the bleak and obscure realm of analog obsolescence. What was efficient, practical, and innovative back then is now outdated, unreliable, and obsolete today. The industry has moved past the KX241.

Want meter technology that’s in step with the industry? Otek offers the NTM-3 from our award-winning New Technology Series, as a 100% Form, Fit, and Function replacement for the Westinghouse KX241 for Class 1E safety related and nuclear qualified applications, as well as Mil-Specs 461,1 67-1, 810F , 901C, and IEEE-34 respectively.

The NTM-3 is an industry standard 4 inch switchboard available in plastic or metal, and can house up to 3 channels, with the capacity to be loop powered, signal powered, or externally powered. The model comes with an automatic tricolor bar graph with intensity control, input fail alarm with runtime stamp and unit ID, self diagnostics, serial I/O, USB or RS485 for non-externally powered units, 4-20mA/30V out on externally powered units, math functions, over thirty isolated input signals, a configurable bar direction (up, down, center zero), 4 relays or O.C.T., and consumes only 100mW@5VDC. The NTM-3 carries Otek’s lifetime warranty and is highly customizable to your desired applications.

Bring your measurement and control in step with the technology of the times. Please give us a call at (520)748-7900 or send us an email at sales@otekcorp.com

Westinghouse KX241 Replacement

Westinghouse KX241 replacementThe Westinghouse KX241 was designed to harness technological breakthroughs that would allow the meter to achieve peak reliability and performance for both military and commercial applications. It was a rousing success. The meter performed to all the industry expectations and standards, resulting in a wide dispersal of the unit over a vast range of applications, particularly in marine environments.

The problem, however, is that the KX241’s heyday was a long way away from 2019—some 40 to 50 years. Technology, like time, only moves forward, and unfortunately, the KX241 has befallen an all too familiar fate: relegation to the bleak and obscure realm of analog obsolescence. What was efficient, practical, and innovative back then is now outdated, unreliable, and obsolete today. The industry has moved past the KX241.

Want meter technology that’s in step with the industry? OTEK offers the NTM-3 from our award-winning New Technology Series, as a 100% Form, Fit, and Function replacement for the Westinghouse KX241 for Class 1E safety-related and nuclear-qualified applications, as well as Mil-Specs 461,1 67-1, 810F, 901C, and IEEE-34 respectively.

The NTM-3 is an industry-standard 4-inch switchboard available in plastic or metal and can house up to 3 channels, with the capacity to be loop powered, signal powered or externally powered. The model comes with an automatic tricolor bar graph with intensity control, input fail alarm with runtime stamp and unit ID, self-diagnostics, serial I/O, USB or RS485 for non-externally powered units, 4-20mA/30V out on externally powered units, math functions, over thirty isolated input signals, a configurable bar direction (up, down, center zero), 4 relays or O.C.T., and consumes only 100mW@5VDC. The NTM-3 carries OTEK’s lifetime warranty and is highly customizable to your desired applications.

Bring your measurement and control in step with the technology of the times. Please give us a call at (520)748-7900 or send us an email at sales@otekcorp.com

Westinghouse KX241 Digital Replacement


The Westinghouse KX241 was designed to harness technological breakthroughs that would allow the meter to achieve peak reliability and performance for both military and commercial applications. It was a rousing success. The meter performed to all the industry expectations and standards, resulting in a wide dispersal of the unit over a vast range of applications, particularly in marine environments.

The problem however, is that the KX241’s heyday was a long ways away from 2019—some 40 to 50 years. Technology, like time, only moves forward, and unfortunately the KX241 has befallen an all too familiar fate: relegation to the bleak and obscure realm of analog obsolescence. What was efficient, practical, and innovative back then is now outdated, unreliable, and obsolete today. The industry has moved past the KX241.

Want meter technology that’s in step with the industry? Otek offers the NTM-3 from our award-winning New Technology Series, as a 100% Form, Fit, and Function replacement for the Westinghouse KX241 for Class 1E safety related and nuclear qualified applications, as well as Mil-Specs 461,1 67-1, 810F , 901C, and IEEE-34 respectively.

The NTM-3 is an industry standard 4 inch switchboard available in plastic or metal, and can house up to 3 channels, with the capacity to be loop powered, signal powered, or externally powered. The model comes with an automatic tricolor bar graph with intensity control, input fail alarm with runtime stamp and unit ID, self diagnostics, serial I/O, USB or RS485 for non-externally powered units, 4-20mA/30V out on externally powered units, math functions, over thirty isolated input signals, a configurable bar direction (up, down, center zero), 4 relays or O.C.T., and consumes only 100mW@5VDC. The NTM-3 carries Otek’s lifetime warranty and is highly customizable to your desired applications.

Bring your measurement and control in step with the technology of the times. Please give us a call at (520)748-7900 or send us an email at sales@otekcorp.com

George Westinghouse, Tesla, Analogs, & Otek


When the era of nuclear energy began nearly 50 years ago, Westinghouse was right there. Championed as “The world’s only true nobleman” by Nikola Tesla, company founder George Westinghouse was a man dedicated to making technology faster, more efficient, and with greater accuracy. From the rotary steam engine to air brakes, from the distribution of natural gas to driving Tesla’s alternating-current system to victory over Edison’s money entrenched direct current, the Westinghouse name bears his mark of ingenuitive hope for the future.

And while the Westinghouse Electric Company was there at the dawn of the Nuclear age, the products they created have been left exactly there and bear little of his divine spark for technological progress. We are no longer at the dawn of nuclear energy—we are shuffling under its high noon shadow. What has dimmed the light and left us with, as Arthur Koestler once wrote, this Darkness at Noon? The mute elephant in the middle of every nuclear I&C room—Analog Obsolescence. Westinghouse was there before the long obsolescence darkness and its analog meters, like the Westinghouse VX252, have remained there. The advent of the last 40 or so years has left bare all the flaws inherent in the analog—subjectivity in display readings, unreliable needles prone to unannounced deadening, blatant inaccuracy, and unavoidable inefficiency. With nuclear power plants being some of the most complex facilities on this planet, it is quite curious that so many are populated with outdated technology such as the VX252. Outdated technology monitoring the most destructive force known to man.

Otek picked up that spark of ingenuity with its New Technology Series, which springs from the industry’s first loop-powered meter. In this regard Otek offers its NTM-9 model as a 100% Form, Fit, and Function replacement for the Westinghouse VX252 for Class 1E safety related and nuclear qualified applications, as well as Mil-Specs 461, 167-1, 810F, 901C, and IEEE-344. The NTM-9 is an industry standard 6 x 1.74” that comes in plastic or metal, with up to two channels and available loop, AC signal, or externally powered units. As with all our products it comes with the Otek lifetime warranty and is completely customizable to your specific applications.

Other features of the NTM-9 include self diagnostics, over thirty input signals, math functions, isolated serial I/O, an input fail alarm with runtime stamp to alert operators in the event of a dead current loop, an automatic tricolor bar graph with intensity control, a configurable bar direction (up, down, or center-zero), 4 relays or O.C.T. on externally powered models, and requires only 100mW@5VDC.

Don’t be mired forever in the darkness of analog obsolescence—walk in the sun again, walk toward the future and a tangible R.O.I. with the NTM-9 and Otek intelligent instruments.

For more information please call us at (520)748-7900 or send us an email at sales@otekcorp.com.

NTM-V Replaces Sigma 9263 100%

Sigma Controls was founded in Perkasie, Pennsylvania, in 1985 with a focus on water based applications for measurement and control. Picking up business as the analog age began to ride its last wave, the company cashed in on the advent of digital meters and rode that into a robust turn of the millennium. While Sigma itself has positioned itself well in the 21st century with a nod to the DPM revolution, they have left some relics behind in U.S. nuclear plants that have not aged as gracefully as their creators.

Once such vestige is the Sigma 9263 analog meter. Long since fallen into the obsolescence abyss, the 9263 is long, bulky, cumbersome, and prone to frustrating analog deficiencies such as display parallax and unreliable needles. Placing oneself behind the eyes of a control room operator, it’s not too difficult to imagine the frustration of being unable to quickly take a reading of the 9263 from across the control room—one has to nearly touch their nose to the instrument to read it.

Don’t play around with the past—it offers nothing but theft of the future. Bolster your control room’s future with Otek’s NTM-V, from our award-winning New Technology Series. Otek offers the NTM-V as a 100% Form, Fit, and Function replacement for the Sigma 9263 for Class 1E safety related and nuclear qualified applications, as well as Mil-Specs 461, 167-1, 810F, 901C, and IEEE-344.

The NTM-V is cyber security compliant and comes with our lifetime warranty, as well as being highly customizable to your specific applications. The model is available in metal only, making it perfect for nuclear or military use. Additional features include an automatic tricolor bar graph with intensity control, input fail alarm complete with runtime stamp, self-diagnostics, Isolated Serial I/O, USB or RS485, a configurable bar direction, over thirty isolated input signals, and 4 relays or O.C.T. on externally powered models.

Analog obsolescence is perfectly willing to wait for you, but the future isn’t. Don’t get left behind in a mire of lost R.O.I. and inefficiency—upgrade to the Otek solution.

For more information please give us a call at (520)748-7900 or send us an email at sales@otekcorp.com.

NTM-V The Sigma 9263 Replacement

Looking for a Sigma 9263 replacement? OTEK’s NTM-V transforms efficiency.

Sigma Controls was founded in Perkasie, Pennsylvania, in 1985 with a focus on water-based applications for measurement and control. Picking up business as the analog age began to ride its last wave, the company cashed in on the advent of digital meters and rode that into a robust turn of the millennium. While Sigma itself has positioned itself well in the 21st century with a nod to the DPM revolution, they have left some relics behind in U.S. nuclear plants that have not aged as gracefully as their creators.

One such vestige is the Sigma 9263 analog meter. Long since fallen into the obsolescence abyss, the 9263 is long, bulky, cumbersome and prone to frustrating analog deficiencies such as display parallax and unreliable needles. Placing oneself behind the eyes of a control room operator, it’s not too difficult to imagine the frustration of being unable to quickly take a reading of the 9263 from across the control room—one has to nearly touch their nose to the instrument to read it.

Sigma 9263 Replacement

Don’t play around with the past—it offers nothing but theft of the future. Bolster your control room’s future with OTEK’s NTM-V, from our award-winning New Technology Series. OTEK offers the NTM-V as a 100% Form, Fit, and Function replacement for the Sigma 9263 for Class 1E safety-related and nuclear-qualified applications, as well as Mil-Specs 461, 167-1, 810F, 901C, and IEEE-344.

The NTM-V is cybersecurity compliant and comes with our lifetime warranty, as well as being highly customizable to your specific applications. The model is available in metal only, making it perfect for nuclear or military use. Additional features include an automatic tricolor bar graph with intensity control, input fail alarm complete with runtime stamp, self-diagnostics, Isolated Serial I/O, USB or RS485, a configurable bar direction, over thirty isolated input signals, and 4 relays or O.C.T. on externally powered models.

Analog obsolescence is perfectly willing to wait for you, but the future isn’t. Don’t get left behind in a mire of lost R.O.I. and inefficiency—upgrade to the OTEK solution.

For more information please give us a call at (520)748-7900 or send us an email at sales@otekcorp.com.

Otek at ANS/NPIC-HMIT This Weekend

Otek President and Owner, Dr. Otto Fest, is heading back to Orlando for the 11th ANS/NPIC-HMIT conference in Orlando, Florida, this coming weekend, February 10th through the 13th.
While there will be many major players in the industry present, including Lockheed Martin just a few booths away in #306, don’t miss out on the chance to stop by booth #302 where Dr. Fest will be displaying Otek’s innovative gift to the nuclear industry, the Solid State Analog Meter or SSAM.

What makes the SSAM so innovative? For starters, the SSAM was designed without any digital components based on a prototype Dr. Fest had tinkered around with in 2004 when challenged by a nuclear plant manager to create a digital meter that paralleled Otek’s popular New Technology Series (NTM’s), but without the inclusion of a microprocessor. Dr. Fest’s gift to the industry became the cost-effective SSAM which helps NPP’s meet the demands of NEI 08-09 while avoiding the huge expenses of doing so by carrying a Cyber Security Exempt status.

The SSAM also adheres to Otek’s theory of “Plug & Play”. While the term sounds simple—and echoes of Dr. Fest’s father’s mantra of “Simplicity is the mother of reliability”—in application it is anything but. The SSAM, like its NTM brethren, is designed to easily slide into place of older, obsolete analog meters—same wiring, no lengthy outages for installation, and only minimal training for I & C operators. Just unwire the analog and wire in the SSAM!

The SSAM is also easy to read from nearly anywhere in the control room and comes equipped with an input fail alarm that alerts the operator when the signal is dead. Additionally the SSAM is backed by Otek’s lifetime warranty and is completely customizable for any user application.

Interested in a more efficient, objective, and cost-effective way to monitor your control room? Stop by booth #302 and see the beauty of Plug & Play from the man who brought you the industry’s first loop powered technology!
Otek may be reached by phone at (520) 748-7900 or via email at sales@otekcorp.com.

Temperatures are Dropping, Otek Instruments Still Measuring Up

With a frigid Armageddon falling over the Midwest and Northeast parts of the U.S. this week, the very fabric of society seems to be frozen itself. Mail has been suspended in Michigan, people are freezing to death for cigarettes, beer is turning to yellow blocks in trucks before they reach the stores, businesses have shuttered their doors, schools have closed eliciting a joyous cry from children everywhere, and Chicago became colder than Antarctica as winter slipped its frozen hands into every avenue of America.

One such place it reached was the PSEG Salem 2 reactor New Jersey. While no danger to the surrounding public ever manifested, engineers were forced to shut down the reactor early Thursday morning due to the formation of frazil ice building up in the Delaware Bay adjacent to the nuclear power plant. Frazil ice forms at the bottom of a body of water due to the rapid cooling of surface water and begins to sink when this super-cooled water is dispersed throughout its entire depth where it adheres to objects in the water, such as the Salem 2’s trash rack (the power plant’s filter system for incoming water from the bay).

You can bet that every single one of Salem 1’s Sigma 1151 analog meters did not display an alarm. No analog would. While being purely an extrapolation, this has the potential to reach the larger disasters such as Three Mile Island and Fukushima.

Otek has a meter that registers a full signal input fail alarm (with runtime stamp) that alerts both computers and operators when such an error occurs. We call it the NTM-9 and it hails from our patented New Technology Series. The NTM-9 is a 100% Form, Fit, and Function replacement for the Sigma 1151 analog meter, for Class 1E safety related and nuclear qualified applications, as well as Mil-Specs 461, 167-1, 810F, 901C, and IEEE-344 respectively.

Worried about cyber security regulations? Don’t’ be. The NTM-9 carries a cyber security compliant classification as well as our lifetime warranty. Like all our products, this model is completely customizable to your specific applications and requires only minimal rewiring—no lengthy installation outages, expensive refurbishing of your I & C room, or extensive training for your operators. Just unwire the Sigma 1151 and wire in the NTM-9.

Additional features include an automatic tricolor bar with intensity control, self-diagnostics, isolated serial I/O with USB or RS485 options (Ethernet & Flash Memory are available on externally-powered models), math functions, over thirty isolated input signals, 4 relays or O.C.T, a configurable bar direction (up/down/center zero), and only 100mW@5VDC.

While we can’t help you with the cold, we can help you shrug off analog obsolescence. Please give us a call at (520) 748-7900 or email our sales office at sales@otekcorp.com.

We do all the work so all you have to do is Plug & Play!

OTEK Instruments Still Measure Up While Temps Fall

With a frigid Armageddon falling over the Midwest and Northeast parts of the U.S. this week, the very fabric of society seems to be frozen itself. Mail has been suspended in Michigan, people are freezing to death for cigarettes, beer is turning to yellow blocks in trucks before they reach the stores, businesses have shuttered their doors, schools have closed eliciting a joyous cry from children everywhere, and Chicago became colder than Antarctica as winter slipped its frozen hands into every avenue of America.

One such place frigid temperatures reached was the PSEG Salem 2 reactor New Jersey. While no danger to the surrounding public ever manifested, engineers were forced to shut down the reactor early Thursday morning due to the formation of frazil ice building up in the Delaware Bay adjacent to the nuclear power plant. Frazil ice forms at the bottom of a body of water due to the rapid cooling of surface water and begins to sink when this super-cooled water is dispersed throughout its entire depth where it adheres to objects in the water, such as the Salem 2’s trash rack (the power plant’s filter system for incoming water from the bay).

You can bet that every single one of Salem 1’s Sigma 1151 analog meters did not display an alarm. No analog would. While being purely an extrapolation, this has the potential to reach larger disasters such as Three Mile Island and Fukushima.

OTEK has a meter that registers a full signal input fail alarm (with runtime stamp) that alerts both computers and operators when such an error occurs. We call it the NTM-9 and it hails from our patented New Technology Series. The NTM-9 is a 100% Form, Fit, and Function replacement for the Sigma 1151 analog meter, for Class 1E safety-related and nuclear-qualified applications, as well as Mil-Specs 461, 167-1, 810F, 901C, and IEEE-344 respectively.

Worried about cybersecurity regulations? Don’t’ be. The NTM-9 carries a cybersecurity compliant classification as well as our lifetime warranty. Like all our products, this model is completely customizable to your specific applications and requires only minimal rewiring—no lengthy installation outages, expensive refurbishing of your I & C room, or extensive training for your operators. Just unwire the Sigma 1151 and wire in the NTM-9.

Additional features include an automatic tricolor bar with intensity control, self-diagnostics, isolated serial I/O with USB or RS485 options (Ethernet & Flash Memory are available on externally-powered models), math functions, over thirty isolated input signals, 4 relays or O.C.T, a configurable bar direction (up/down/center zero), and only 100mW@5VDC.

While we can’t help you with the cold, we can help you shrug off analog obsolescence. Please give us a call at (520) 748-7900 or email our sales office at sales@otekcorp.com.

We do all the work so all you have to do is Plug & Play!

Sigma 1251 Disappears into the Obsolescence Cloud



Sigma Instruments was incorporated in 1995 for distribution of products in the semiconductor and vacuum-coating industries. Long before then however, the company had been a major player in the analog metering sector for nuclear power plants with one of their staples, the Sigma 1251. With the curved subjectivity of its PSG display and drooping needle, it’s not too terribly difficult to imagine this little piece of equipment being the sneaky culprit behind horrendous disasters such as Fukushima or 3 Mile Island—so why persist with obsolete technology whose very limits create inherent risk?

Minimize problematic HMI and MMI with Otek’s New Technology Series of intelligent meters that measure up to analog obsolescence. Using our cutting-edge technology we offer the NTM-9 as a 100% Form, Fit, and Function replacement for the Sigma 1251 for Class 1E safety related and nuclear qualified applications, as well as Mil-Specs 461, 167-1, 810F, 901C, and IEEE-344 respectively.

The NTM-9 housing is an industry standard 6 x 1.74” available in plastic or metal. This unit houses up to 2 channel and is available in loop (4-20mA), A.C. signal, or externally powered models. Highlighted features include an automatic tricolor bar with intensity control, our patented input fail alarm with runtime stamp, self-diagnostics, isolated serial I/O with USB or RS485 options (Ethernet & Flash Memory are available on externally-powered models), math functions, over thirty isolated input signals, 4 relays or O.C.T, a configurable bar direction (up/down/center zero), and only 100mW@5VDC.

The NTM-9 also carries a Cyber Security Exempt Status and Otek’s lifetime warranty. As with all our products, the NTM-9 is 100% configurable to your applications. We customize our technology so all you have to do is unplug obsolescence and plug in Otek!

Give us a call today at (520)748-7900 or shoot us an email at sales@otekcorp.com.