氩气三相点系统 Fluke 5960A

产品名称：	氩气三相点系统 Fluke 5960A
产品型号：	Fluke 5960A
产品品牌：	美国 - 福禄克
产品特色：	氩气纯度：99.9999% 径向均匀性：0.05mK 显示分辨率：0.001°C 设定点精度：0.1°C 浸没深度：480mm

Fluke 5960A 氩气三相点系统

Breakthrough primary temperature standards capability

▪ Low uncertainty of 0.25mK

▪ Temperature plateau duration longer than 30 hours

▪ Four entrant wells with radial uniformity less than 0.05mK

▪ 480mm total immersion depth

▪ Argon purity of 99.9999 %

▪ multi-language display support

The Fluke Calibration Fluke5960A 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 providesmultiple entrant wells to increase SPRT calibration efficiency and throughput.

Low calibration uncertainty

A number of technology advancements are designed into the Fluke Calibration Fluke5960A system to achieve a low uncertainty of 0.25mK. 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 0.015mK. The deep, 480mm immersion depth of the entrant wellminimizes the effects of stem conduction to less than 0.01mK and radial uniformity to less than 0.05mK.

High lab throughput

The Fluke5960A system utilizes liquid nitrogen (LN2) in a Dewar vessel surrounding an argon cell to achieve –189.3442 °C. A digital controller combined with a heatermaintains a temperature plateau lasting up to 30 hours with 0.1mK 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 andmore efficiency. Four entrant wells increase lab productivity by allowing you to calibrate four SPRTs simultaneously.

Ease of operation andmaintenance

The display panel of the 5690A provides a simplemenu 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 freezingmoisture. You can insert and remove SPRTs as desired from the system over the duration of a single plateau. Other systems require that you firstmelt 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)	0.25mK
Length of plateau (0.1mK)	>30hours
Argon cell depth*	160mm
Number of entrant wells	4
Radial uniformity	0.05mK
Total immersion depth	480mm
Entrant well inner diameter (ID)	8.0mm
Argon gas volume	13.4moles (535 grams)
Liquid nitrogen Dewar volume	44.2 liters
Display resolution	0.001°C
Set-point accuracy	0.1°C (adjustable)
Power requirements	100V to 115V (± 10%) 50/60Hz, 230W 230V (± 10%) 50/60Hz, 230W
System fuse ratings	115V: 2A T 250V 230V: 1A T 250V
Size (HxWxD)	952mm x 673mm x 483mm (37.5 in x 26.5 in x 19 in)
Weight	94kg (207 lbs)
*Measured from the bottom of the probe well to the surface of argon sample
通用配件
型号	描述
Fluke 5960ACC-PUMP/DEWAR	Pump and Dewar Accessory Kit，Includes: ▪ Rotary Vane Vacuum Pump ▪ Self-pressurized Liquid Nitrogen Dewar (50 Liters) ▪ Hoses ▪ Fittings ▪ Associated Hardware
Fluke 5960ACC-PUMP	Pump Accessory Kit，Includes: ▪ Rotary Vane Vacuum Pump ▪ Hose ▪ Associated Hardware
Fluke 5960ACC-DEWAR	Dewar Kit，Includes: ▪ Self-Pressurized Liquid Nitrogen Dewar (50 Liters) ▪ Hoses ▪ Fittings ▪ Associated Hardware

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