The New Improved SEK HI-LO-GO

SEKThe newly improved SEK Series is now equipped with Limit Data Memory Storage. This means that you can save up to 10 product HI-LO-GO memories in a designated memory location on the numerical keypad. The unit can be set up by supervisory staff, enabling operators to only access the correct data on the keypad, keeping the important decisions in the hands of the supervisor.

The SEK is ideal for checkweighing or batch counting, even in noisy factories. The highly visible, three colored light tower provides excellent HI-LO-GO capability in less than ideal conditions. The target weight or count is easily set using the keypad, and results are clearly displayed on the light tower as well as on the display. This high resolution weigher is ideal for exacting applications in any industry. The SEK uses an AC power cord for both the tower and to charge the internal rechargeable battery.

This series includes featers such as a HI-LO-GO check status indicator with programmable audio output, zero tracking, digital motion filters for adverse environmental conditions, easy calibration, RS232 interface, and smart power-save for battery conservation.

 


Demonstration of the Limit Data Memory Storage Function

What is the meaning of the Intelligent Weighing Technology logo?

 

You will notice that the “Swoosh” in the logo connects the two “I”s in Intelligent.  The two “I”s stand for Innovation and Ingenuity”.

“Intelligent weighing” is the direction all laboratory and high precision industrial facilities have been going in for years.  We support critical applications with products that connect to your facility.

We concentrate on one field—weighing technology—so all you have to do is plug in your weighing instrument and go… with confidence.

That is why world leaders in balance and scale manufacture trust us to be their exclusive distribution partner in North America.

What sets you apart from other suppliers?

In industries as diverse as Life Sciences, chemicals, pharmaceuticals, food and beverage, there is a common denominator.  Whatever the weighing application, if it needs to be done, it needs to be done right.  From animal weighing to formulation to moisture analysis—the quality of the end product depends on the quality of the weighing results.

Intelligent-Lab balances and Intelligent-Weigh scales deliver the results you insist on—and they do it with ease.  Covering all aspects of weighing from simple, easy to use LCD displays to full graphic—application specific displays with multi language capability, this exclusive line is creating quite a stir.

Our products are designed and manufactured by industry experts and are solidly built from the ground up with superior engineering and components for exacting results.  The Intelligent-Lab and Intelligent-Weigh lines deliver the level of quality you depend on.

The Intelligent-Lab line includes analytical and top-loading balances equipped with either simple or full function displays, as well as moisture analysis balances. Many offer automatic internal calibration and offer a huge list of dedicated application software.

The Intelligent-Weigh line includes high precision bench scales through to counting and check-weighing scales.

Intelligent Weighing Technology is an international provider of a complete range of high-quality laboratory balances, industrial scales, load cells, and weighing accessories to the North American dealer market. Its leadership team has more than 70 years’ experience in the weighing and measurement business, both in the USA and worldwide.

With its 8,000 square foot facility located in Camarillo, CA, Intelligent Weighing Technology offers a high level of product inventory for faster shipping. But we don’t just ship product.  Every weighing instrument that leaves this building has been checked out and calibrated by our expert staff to make sure you get the best product available.  Built on a cornerstone of quality, precision, and service, Intelligent Weighing Technology provides its customers with the equipment they need, right on time.

The Other 10:1 Rule

The 10:1 Rule

When calibrating an instrument, we’re told to always use standards, masters or reference materials whose accuracy is 10 times as great as that of the unit under test.

Anyone who has learned about calibration and traceability in the last 100 years has been taught the 10:1 principle. This ratio, 10 to one, is usually referred to as the test accuracy ratio (TAR) or test uncertainty ratio (TUR), and conventionally describes the ratio of the accuracy of the unit being calibrated to the accuracy of the standard used for the calibration.

The Other 10:1 Rule

There is another 10:1 rule which says that when one is trying, for example, to weigh 1 mg (or 0.001 g), they need to move the decimal over one place and weigh 1 mg on a 0.0001 g analytical balance, not a milligram balance. Hence the 10:1 principle.

Do note that all balances have errors, and that it is unsafe practice to weigh at the bottom of the readability range. The recommended minimum load for a model LS 320 C with a readability of 0.001 g (see data sheet) is 0.01 g. The repeatability and linearity errors on an LC 320 C are +/- 0.001 g and 0.0015 g respectively. Weighing one milligram on this balance could mean an error of 100%!

The accepted method of recommending a balance readability is the 10 to 1 rule. If you want to weigh 0.1 g you need to be using a 0.01 g balance. If you want to weigh a milligram (0.001 g) you need to move to a 4 place balance (0.0001 g).

We recommend that if a customer wishes to weigh 0.1 g then he should move to a balance with 0.01 g readability. For instance, we would recommend the model PBW-3200 as our lowest cost 0.01 g balance. Many of our customers do not, at first inquiry, understand this message.

Please note: the above recommendations do not only apply to Intelligent Weighing Technology products, but apply to all balances, whatever the manufacturer.

Community Focus

We believe in giving back to our community, not only by creating jobs (see our blog on bringing assembly back to the USA), but also by donating to the less fortunate members of our community. We wished to find something local to us here in Camarillo, Ventura County, CA.

Because of this we have elected to support the Ventura County Rescue Mission. Our financial gift is used in their refuge, recovery, and restoration program to provide food, shelter, clean clothes, and substance abuse recovery programs to the homeless. The mission also gives spiritual guidance and support to find a path to God.

The mission is able to provide a full meal at a cost of only $2.05 thanks to food donations and volunteer support. Those of us in Ventura County can also support the mission by shopping at their thrift store, where 100% of the proceeds go straight to helping the homeless become productive citizens again.

Another great program within the Rescue Mission Alliance is The Lighthouse for homeless single women and mothers with children. Nothing saddens our hearts more than the lost potential of children who find themselves on the streets due to the unfortunate circumstances of their parents. It is our hope that with each donation, we give someone a brighter future they otherwise wouldn’t have had.

Ventura County Rescue Mission
234 E. 6th Street
Oxnard, CA 93030
(805) 487-1234

“Why does NTEP allow the use of non-NTEP load cells for some scales?”

Republished with permission of Jim Truex

National Conference on Weights and Measures

2017 Issue 1
Jim Truex, NTEP Administrator
[email protected]

 

When reading an NTEP Certificate of Conformance (CC) we see the load cell used in a scale is identified as non-NTEP in some case. Many have inquired as to why NTEP allows the use of load cells that are not traceable to their own NTEP CC or “non-NTEP” cells.1

While NIST Handbook 44 does not specifically state that non-NTEP load cells are permitted for use in weighing instruments; Handbook 44 does contain several hints that not all load cells used in commercial scales are required to have an NTEP certificate.

For example:

  • If we look at NIST Handbook 44, Scales Code, Marking Requirements, Table S.6.3.a., the heading of the fourth column reads “Load Cell with CC (11).” This column heading implies that if these marking requirements are for load cells with a Certificate of Conformance, there must be load cells without a Certificate of Conformance or non-NTEP load cells.
  • Also in the Scales Code, paragraph S.6.3., reads in part: “Scales, main elements of scales when not contained in a single enclosure for the entire scale, load cells for which Certificates of Conformance (CC) have been issued under the National Type Evaluation Program (NTEP, and other equipment necessary to a weighing system.” The statement, “load cells for which Certificates of Conformance (CC) have been issued” is also implying there must be load cells without a Certificate of Conformance or non-NTEP load cells.
  • Additionally, if we look at Scales Code paragraph S.5.4. we find the following stated: “This requirement does not apply to complete weighing/load-receiving elements or scales, which satisfy all the following criteria:”
    • the complete weighing/load-receiving element or scale has been evaluated for compliance with T.N.8.1. Temperature under NTEP (meaning the complete weighing device, including load cell(s) has been tested in an environmental chamber);
    • the complete weighing/load-receiving element or scale has received an NTEP Certificate of Conformance;”

Again, no clear statement, but the fact that the formula shown in S.5.4. does not apply if the specified conditions are met tells us that the use of load cells without a Certificate of Conformance or non-NTEP load cells is acceptable when the complete weighing/load-receiving element or complete scale has undergone and satisfied influence factor testing.

So, NIST Handbook 44 tells us that not all load cells have their NTEP certificate but does not tell us why. However, it does tell us that the complete scale (containing the load cell) or weighing element (containing the load cell) must be evaluated for compliance with T.N.8.

To understand more we must go to NCWM Publication 14, Weighing Devices, NTEP Technical Policy, Section B.1., which contains the following statement:

“The main elements and components (indicating elements and load cells) of scales with a capacity greater than 2000 lb. must be tested separately for compliance with the influence factor requirements.”2

Is there any penalty for using non-NTEP cells? Yes, in fact there is a potential penalty for the certificate holder. NCWM Publication 14, Technical Policy allows for the “Substitution of Load Cells in Scales” using a set of specific requirements to determine if the cells are metrologically equivalent. The first requirement in evaluating metrologically equivalent is that both load cells must have been evaluated separately and have a separate load cell Certificate of Conformance. Obviously, since a non-NTEP load cell was used in the cases we are addressing, it does not have an NTEP certificate and cannot be substituted. In these cases, the certificate holder must resubmit the device to NTEP for full performance testing to allow the use of another load cell. Reason being that NTEP does not have values for non-NTEP load cells, such as nmax or vmin to determine equivalency.

Now, we can use this information to piece together the facts pertaining to the use of non-NTEP cells used in complete scales and weighing/load-receiving elements.

  1. NIST Handbook 44 recognizes the use of load cells that do not have their own NTEP Certificate of Conformance.
  2. NCWM Publication 14 recognizes the use of non-NTEP load cells in scales 2000 lb. capacity and less.
  3. The scale or weighing element containing a non-NTEP load cell or load cells must be tested by NTEP for compliance to influence factor (T.N.8) requirements.
  4. If a non-NTEP load cell is used it is identified on the NTEP certificate and the load cell cannot be substituted, otherwise the device must be resubmitted to NTEP for a complete performance test using the different cell. When this scenario happens, an amended certificate identifying the non-NTEP cells used during the evaluations will be issued.

Hopefully this article has helped eliminate some of the confusion and answer questions that may have been on your mind.

 


1. This article was published about two years ago, but we have answered many recent inquiries from the weights and measures community confused about the use the term “non-NTEP” on some NTEP certificates. It appears to be especially confusing when some of the scale models use load cells traceable to NTEP certificate but others, on the same certificate, use non-NTEP certified cells that must be identified on the certificate because of the load cell substitution requirements specified in NCWM Publication 14, Technical Policy. All the scale models listed on an NTEP certificate are covered by the certificate or they would not be listed on the certificate. The “non-NTEP” designation applies to the load cells used in that particular model, version, capacity, etc.

2. Note: If we read further we will find some exceptions but most of those would result in a provisional NTEP certificate not a full NTEP certificate.

Seven Year Support

We pride ourselves in offering our dealers one of the best ranges of weighing instruments available in the North American market. However, we have noticed a disturbing trend where some manufacturers are no longer supporting products with spare parts after only a few years! When spare parts are no longer available, you begin to wonder where your support is. Part of our strategy is to select balances and scales from manufacturers who provide above standard support.

It pleases me to inform you that we at Intelligent Weighing Technology will support all our products for seven years following their sale to you, the dealer. That’s right, seven years. This helps you support your customer by supplying parts and service for a reasonable length of time.

Scales and balances are physical, dynamic, complicated machines. They are not mere “apps” which cost you a monthly or yearly charge until—lo and behold—they tell you that it is no longer supported! These devices are in constant daily use in the real world by real people, and they should be treated and supported as such.

End of rant!

Hello UHR!

Here at Intelligent Weighing Technology we are always looking for ways to improve our product line with newer technology and the features that our dealers and the end users desire in a product. The new UHR Series is no exception. If you have been looking for a replacement for the Sartorius Miras, then you should know that the classic Sartorius Miras bench scale is being phased out in favor of the more dependable UHR bench scale. This newly designed series satisfies a special position in our range: a bench scale that can truly provide 30,000 division performance in terms of repeatability, return to zero and corner loading.

The excellent performance makes this a great product for aerospace, quality control, plastics, research, education and other industrial purposes. The functionality of the indicator is so intuitive that users can be quickly trained in its operation. The huge 2” high Intelligent Backlight™ display clearly indicates the measurements.  A U-shaped bracket on the versatile indicator allows for various viewing angles. The pillar support can also be removed for stand alone use. The indicator may be removed from the pillar and attached elsewhere to accommodate even more viewing angles. And the corrosion resistant cast aluminum bases provide lightness, stiffness and strength.

Configured in three platform sizes; 11” x 13”, 13” x 17.7” and 16.5” x 20.5”, the capacities range from 6 kg to 300 kg. Pounds, kilograms or grams units are available. Not only are the materials chosen to give the best performance, but the load cells are specially chosen for their superior performance. The UHR indicator is quite capable of a stable 150,000 divisions. The animal-weigh filter ensures a stable weight reading. There is a bi-directional RS-232 output for transferring data to printers or computers and the unit will also receive commands from outside devices. The UHR can perform single-weigh with the print button, or accumulation. The UHR is highly serviceable and can be repaired quickly, unlike many bench scales in the market.

Be it in the lab or in the warehouse, the UHR has every benefit of being the most versatile and valuable addition to any industry.