Engineering Laboratories' (Colorado-USA)
Defining Standard Cells for ITS-90
an emphasis on primary temperature standards and associated equipment to calibrate
thermometers on the International Temperature Scale of 1990 (ITS-90), Pond have
developed a line of standard products which cover the range of temperature from
the Triple Point of Argon (-189.3442 C) to the Freezing Point of Silver (961.78
to use and most cost- effective of all the defining fixed points, the Triple Point
of Water (TPW) (above in three views-from the left, 1. crossection sketch of thetwo
versions available, 2 photos of the same, and 3. a closeup sketch showing the
white frost mantle around the inner tube) provides the ultimate in accuracy for
calibration of precision thermometers of many types. Uncertainty,
reproducibility and stability of the temperature realized in a TPW Cell is nothing
short of phenomenal. Pond Engineering TPW Cells are guaranteed to realize a temperature
within +0.000 0, -0.000 2 K of the theoretical ideal TPW. Furthermore, this high
standard of accuracy is guaranteed for five full years.
The complete Pond Engineering
product line includes:
K18C Mercury Triple Point Cell
K23 Indium Freeze,
K23 Tin Freeze, K23 Zinc Freeze, K23 Aluminum Freeze, K23 Silver
Melting Point Cell
K29A, B Water Triple Point Cell
K38 Argon Triple Point
Pond provides associated maintenace equipment for maitaining a plateau and furnaces
and extrapolating RTD instruments for traversing the temperatures between reference
primary and secondary points. With these equipment and properly trained staff
and good practices, a calibration lab can realize the ITS-90, over a large portion
of its range, in house, thus saving on external certification costs and assuring
control of delivery of time-sensitive, traceably-certified products.
complement these products there is are special, high quality digital RTD and thermocouple
indicators such as:
Precision Platinum Resistance Thermometer Digital Readout
Temperature Display Range: -200°C to 662°C
to 232 °C: +/- 0.003°C
Uncertainty 232 to 662 °C: +/- 0.007°C
K46 Precision Pure Element Thermocouple Thermometer
Platinum or Platinum vs. Palladium Probes
Precision Internal Cold Junction
Temperature Display Range: 0°C up to 1500°C
Links of Interest - October 2002
Engineering Laboratories (USA)
Triple point of water
and other fixed points and related equipment and training for realizing the International
Temperature Scale of 1990 to very high precision.
Temperature calibration services for TCs, RTDs, LiGs traceable
to NIST to 1100 °C and with their custom-made fixed point cells ( FPs Hg,Ga, In,
Sn, Zn, Al, Ag).
Pro Wireless Weather Station (USA)
Measures wind speed, direction,
humidity, indoor and outdoor temperature and then predicts weather, wind chill
and heat index values. A remote sensor array collects data and transmits wirelessly
to a well-designed display unit that can be up to 400 feet away. The update time
is 2.5 seconds. Solar-powered repeater units are available to extend seperation
between sensors and display up to 1/2 mile.
Specializes in electronic kits that link computers to the physical world-includes
kits for adding temperature sensors and entire weather stations to your PC.
Thermometer Vendors Page
Bimet thermometers, thermostats, control and much
Instrument Company USA
Top quality bimetallic gauges for installations ,3" & 5" dials, and pocket
test gauges in both digital and bimet types. Also a wide line of economy style,
hot water, magnetic type and dual pressure/temperature "Tridicators"
Industrial round gauges (2" to 5") in ANSI 304 SS (316 option)for all
types of environments including high vibration ones. Stem lengths from 2" to 72"
Temperature and Humidity electronic transmitters,
field loop-powered transmitters, low cost, smart digital displays forn RTDs, TCs
Current transmitters for TCs, RTDs (Pt, Ni & Cu) plus millivolt
and resistance-Units reknown for stability (automatic ambient temperature & cold
junction compensation), rapid response, RFI rejection, self-calibration, NIST
traceability in absolute accuracy, versitile designs, HART communications.
Food thermometers, thermocouples, control and much
A thermocouple supplier that specializes
in high quality and innovative sensor solutions with expertise in food & sanitary
Unique dual tc/Bimet or RTD/Bimet with industrial round gauges (3"& 5") in
ANSI 304 SS-to provide both local and remote temperature values.
Radiation Thermometer Vendors Page
Works America Inc. USA & Japan
A global instrument company with
a significant line of industrial & research infrared radiation thermometers.
Engelhard Corporation USA
Makers of the "Exactus" brand of high
performance optical pyrometers designed primarily for OEM wafer-temperature measurement
applications in both 0.9 and 1.6 micron wavelength passband models. Utilize both
lightpipe (Quartz, Sapphire & proprietary materials) and lens models.
Manufacturers of the IRTec line ofindustrial online & portable
infrared thermometers that include 8 single waveband devices covering the -30
°C to 1600 °C range and ratio infrared (Two Colour) thermometers for the 600 °C
to 2000 °C region, including Fahrenheit models. Looks like a new player on the
European scene with attractive designs and crisp literature.
Non-Contact Temperature Measurements from -50°C to
3000°C; non-contact temperature measurements with more than 40 years of experience
and an installed base of infrared thermometers and systems with thousands of customers
Month's Plan And New Web Site
new new look, feel and morecommunity-oriented web site for About Temperature
Sensors is not quite ready for prime time, but we are going ahead with it
anyhow. The web address (URL) is temporarily at www.tempsensor.net. We shall continue
the existing format in parallel while we continue to transfer the content to the
new site and figure out how people can keep their bookmarks intact. It may be
useful for those who bookmark special pages to look over the new site and capture
the equivalent page there, too.
and MORE SITE RANKINGS
to PR and Ad staffs in equipment and service companies:
Send us your new product, new staff, and related news releases, please and we'll
get them into our queue for release on the site and/or this newsletter.
below are the Alexa Web site rankings at the end of October and the preceeding
two months. The rose color indicates that a site became less popular during the
month, the green or aqua indicates more popular. The numbers provide a quantitative
measure of the site popularity according to the Alexa ranking system.
is interesting to note that the dominant color this past month is now rose! That's
not good news. Most of the societies that we list show reduced popularity with
the notable exceptions of the IEEE ( reversing a three month decline). Note ISA
now with a three month decline and ASNT recovering very nicely. Again, some of
the vendor ratings had significant changes in the last month. Land Instruments
contimues taking giant steps upwards for the third month in a row and Raytek continues
to slide backwards for the third month. Hart Scientific continues to grow in populariy
while JMS-SouthEast made another large increase again, jumping ahead of both Raytek
& Ircon. That seems quite remarkable since JMS-SE is not a nation-wide company
manufacturing many products but primarily a distributor. Note that the three major
thermal imager makers have lost popularity this month, with Flir continuing a
loss for each of the past three months. Remember, there are rankings for sites
out to more than the 23 million we mentioned last month. Latest estimates put
the number of web sites at about 35 million!
So, in context of a popularity rating, a position of 1 or 2 million doesn't seem
so bad. However the rankings of sites of similar organizations competing for web
hits and exposure does seem to indicate at least relative success or lack thereof
in attracting visitors. And we all know, or should know, the first rule of selling:
Inform-tell them who you are and what you do. The web is the lowest cost ever
"informer" per prospect.
Rating October 2002
Rating September 2002
Rating August 2002
Rating October 2002
Rating September 2002
Rating August 2002
companies can improve their visitor rate, sales and marketing operations, sales
communications and generate more orders through proper focus on their Web resources.
The Internet, especially the Web, is a revolutionary new marketing and business
tool. We are redesigning our site to demonstrate just what is possible on the
Web even for a small company.
from the above Alexa ratings that our web site consistently acheives a lower ranking
(meaning it is more popular) than nearly all the vendors of temperature sensors,
with the major exceptions of GlobalSpec, Omega Engineering and Flir. But we are
beginning to gain slowly and steadily.