Breakthrough primary temperature standards capability
Low uncertainty of 0.25 mK
Temperature plateau duration longer than 30 hours
Four entrant wells with radial uniformity less than 0.05 mK
480 mm total immersion depth
Argon purity of 99.9999 %
Multi-language display support
The Fluke Calibration 5960A Triple Point of Argon System enables
primary standards laboratories to realize the argon triple point using a
consistent, reproducible process with the lowest uncertainty of any
commercially available system. The Fluke Calibration system produces a
30-hour temperature plateau and provides multiple entrant wells to
increase SPRT calibration efficiency and throughput.
Low calibration uncertainty
A number of technology advancements are designed into the Fluke
Calibration 5960A system to achieve a low uncertainty of 0.25 mK. For
example, the argon cell is carefully built with an ultra-clean process
using 99.9999 % (six nines) purity argon resulting in an uncertainty
factor from impurities of 0.015 mK. The deep, 480 mm immersion depth of
the entrant well minimizes the effects of stem conduction to less than
0.01 mK and radial uniformity to less than 0.05 mK.
High lab throughput
The 5960A system utilizes liquid nitrogen (LN2) in a Dewar
vessel surrounding an argon cell to achieve –189.3442 °C. A digital
controller combined with a heater maintains a temperature plateau
lasting up to 30 hours with 0.1 mK variation without using complicated
pressure controls. By regular renewal of liquid nitrogen in the system,
the plateau length can even be extended to four days. The system’s long,
stable temperature plateau lets you carry out your SPRT calibrations
with better quality and more efficiency. Four entrant wells increase lab
productivity by allowing you to calibrate four SPRTs simultaneously.
Ease of operation and maintenance
The display panel of the 5690A provides a simple menu structure with
soft function keys for setup and programming the argon system. The
readout displays simultaneously the set-point temperature, actual
control sensor temperature and percent heater power. The display is
selectable in eight languages—English, French, Spanish, Italian, German,
Russian, Chinese, and Japanese. Applying positive pressure with helium
or dry nitrogen to an entrant well port prevents your SPRTs from being
bound in the entrant well by freezing moisture. You can insert and
remove SPRTs as desired from the system over the duration of a single
plateau. Other systems require that you first melt the cell in order to
add or remove an SPRT.
Specifications |
Assigned value | -189.3442 °C |
Argon gas purity | 99.9999 % (6N purity) |
Uncertainty (k=2) | 0.25 mK |
Length of plateau (0.1 mK) | >30 hours |
Argon cell depth* | 160 mm |
Number of entrant wells | 4 |
Radial uniformity | 0.05 mK |
Total immersion depth | 480 mm |
Entrant well inner diameter (ID) | 8.0 mm |
Argon gas volume | 13.4 moles (535 grams) |
Liquid nitrogen Dewar volume | 44.2 liters |
Display resolution | 0.001 °C |
Set-point accuracy | 0.1 °C (adjustable) |
Power requirements | 100 V to 115 V (± 10 %) 50/60 Hz, 230 W 230 V (± 10 %) 50/60 Hz, 230 W |
System fuse ratings | 115 V: 2 A T 250 V
230 V: 1 A T 250 V |
Size (HxWxD) | 952 mm x 673 mm x 483 mm (37.5 in x 26.5 in x 19 in) |
Weight | 94 kg (207 lbs) |
*Measured from the bottom of the probe well to the surface of argon sample |
通用配件:
5960ACC-PUMP/DEWAR | Pump and Dewar Accessory Kit Includes: |
5960ACC-PUMP | Pump Accessory Kit Includes: Rotary Vane Vacuum Pump Hose Associated Hardware
|
5960ACC-DEWAR | Dewar Kit Includes: |
福禄克 5960A Triple Point of Argon System, 5960A
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