New Fluke 1594A/1595A Super-Thermometers deliver primary-lab precision and productivity

Ratio self-calibration ensures accuracy

Sydney, July 12, 2010  – Fluke Corporation, a global leader in electronic test and measurement technology, has introduced the new 1594A/1595A Super-Thermometers from Hart Scientific, designed to combine accuracy, value and innovative features for calibration of SPRTs, PRTs and thermistors.

The Fluke 1594A and 1595A Super-Thermometers are accurate enough for the primary lab, providing accuracy as good as 0.06 ppm (0.000015 °C), and economical enough for the secondary lab. Metrologists can feel confident that every measurement made with the Super-Thermometer falls within expected limits, easily verified at any time.

Other features include:

Ratio self-calibration for confidence in every measurement

The 1594A and 1595A feature patent-pending “ratio self-calibration” that enables users to test the accuracy or calibrate the resistance ratio linearity of the Super-Thermometer’s measurement circuit – regularly, easily, and without requiring any external devices or special training.

Metrologists can verify accuracy and performance automatically in about 30 minutes, at the touch of a button. Although unlikely, measurement circuit defects would be detected and reported automatically. No other temperature measurement instrument on the market more fully empowers the metrologist to determine and improve instrument performance.

Calibrate internal reference resistors, quickly and easily

Users can also calibrate the Super-Thermometer’s internal reference resistors using the resistance calibration function and an external standard resistor. The Super-Thermometer assists with the calibration through an easy-to-use setup utility. Once the calibration is complete, the Super-Thermometer reports the results to the display and provides the option to write the results to a USB memory device. You can also choose whether or not to adjust the calibration parameters of the internal reference resistor by pressing the password-protected adjust resistor function key.

Low measurement noise

Measurement noise is caused by electrical noise and other random errors that can negatively influence measurement accuracy. New patent-pending design innovations incorporated into the Super-Thermometer reduce measurement noise and interference to levels that are unprecedented for a digital thermometry bridge. In a typical temperature calibration application, uncertainty due to measurement noise is as low as 0.00002 °C.

Fast measurement speed

Super-Thermometers offer speeds as fast as one second per measurement (full accuracy with a two second sample rate). This means users can complete tests in less time, track temperature changes more accurately, and even evaluate thermal response in sensors. When measuring fixed-point temperatures that require the highest levels of accuracy and lowest levels of noise, users have complete control to change the measurement speed to meet their requirements.

Product availability

The Fluke 1594A and 1595A Super-Thermometers are now available. For more information on Fluke tools and applications, or to find the location of your nearest distributor, contact Dennis Juniper at Fluke Australia, Locked Box 5004, Baulkham Hills, NSW 2153, call (03) 9633-0444, fax (03) 9012-4107, or e-mail dennis.juniper@fluke.com. Visit Fluke’s web site at http://www.fluke.com.au.

-ENDS-

 

About Fluke

Fluke Corporation is a leader in precision calibration instrumentation and software for electrical, temperature, pressure, flow, and RF measurements. Calibration products from Fluke and its Hart Scientific and DH Instruments Divisions are found in calibration facilities around the world, including National Metrology Institutes, that demand the highest levels of performance and reliability, backed by state of the art metrology and uncompromising support. They are relied on by quality engineers, calibration technicians, and metrologists to instill confidence in the measurements that are critical to their organisations for quality, safety, reliability, and cost. In the past five years, Fluke tools won more than 50 industry awards, including Test and Measurement World Best in Test, Control Engineering Engineer’s Choice, and Plant Engineering Product of the Year. Fluke is a registered trademark of Fluke Corporation in the United States and/or other countries. The names of actual companies and products mentioned herein may be the trademarks of their respective owners.

New full immersion probes from Hart Scientific are designed to perform in extreme environments

Sydney, January 22, 2010 – The Hart Scientific Division of Fluke Corporation has introduced new full immersion platinum resistance thermometer (PRT) probes designed to perform in extreme environments.

The Hart Scientific 5606 and 5607 Full Immersion PRTs are designed to perform in “full immersion” applications where both the transition junction and the lead wires must withstand temperatures covering the entire operating range of the probe. Such applications can include calibration or validation of sensors used in laboratory or bio freezers, walk-in refrigerators, autoclaves, ovens, stability test chambers, furnaces or incubators.

The Hart Scientific 5606 has a temperature range of -200 °C to 160 °C, while the 5607 has a range of 0 °C to 450 °C.

The 5606 is only two inches (50 mm) in length with a sheath diameter of 1/8 inch (3.1 mm). Since it can be fully immersed over its entire temperature range, users need not worry about calculating minimum immersion depth and can immerse the entire probe, transition junction and lead wires in either non-corrosive liquids or dry mediums.

The lead wires of the 5606 are made of single-conductor enameled copper wire, which prevents moisture from wicking to the sensing element as it would if a more common, stranded lead wire were used. The diameter of the lead wire is no greater than 0.2 mm, making it easy to run lead wires through a freezer door to a readout or transmitter with effectively zero energy loss. The 5606 has been proven in common heat transfer fluids such as silicone oil, mineral oil, ethanol, and even liquid nitrogen with no degradation of the transition junction seal or lead wire insulation.

The 5607 has been designed specifically for performing calibrations or verifying the accuracy of sensors used in ovens or furnaces. Intended to be used in dry mediums only, the 5607 can be fully immersed in dry mediums over a temperature range of 0 °C to 450 °C. There isn’t another PRT on the market that can be fully immersed over this range and remain as stable and accurate (± 0.05 °C). The lead wire of the 5607 is shielded with braided stainless steel and connected to the transition junction with a strain relief spring.

For more information and full specifications on the Hart Scientific 5606 and 5607 Full Immersion PRTs, please contact Dennis Juniper on (03) 9329-0244 or fax (03) 9329-1277 or by email dennis.juniper@fluke.com.

-ENDS-

Fluke Corporation
For more information on Fluke power standard products, or to find the location of your nearest distributor, contact the Fluke sales team at Fluke Australia, Locked Box 5004, Baulkham Hills, NSW 2153, call (02) 8850-3333, fax (02) 8850 3300, or e-mail sales@fluke.com.au. Visit Fluke’s web site at http://www.fluke.com.au.

About Fluke
Fluke Corporation is the leader in precision calibration instrumentation and software for electrical, temperature, pressure, flow, and RF measurements. Calibration products from Fluke and its Hart Scientific and DH Instruments Divisions are found in calibration facilities around the world, including National Metrology Institutes, that demand the highest levels of performance and reliability, backed by state of the art metrology and uncompromising support. They are relied on by quality engineers, calibration technicians, and metrologists to instill confidence in the measurements that are critical to their organisations for quality, safety, reliability, and cost. Fluke and DHI are either registered trademarks or trademarks of Fluke Corporation in the United States and/or other countries. The names of actual companies and products mentioned herein may be the trademarks of their respective owners.