FLUKE 7196 Standard AC/ DC Resistors

The nominal boiling point of nitrogen is – 196° C at one atmosphere of pressure. The defining triple point of argon is – 189.3442° C. While there is a difference between the nominal boiling point of nitrogen and the argon triple point, the difference can be corrected for mathematically, and an uncertainty of less than 2 mK from the actual argon triple point is achievable.

Fluke Calibration’ s LN2 Comparison Calibrators consist of a super-insulated glass dewar, a high-purity copper block, and a precision-fit lid. The dewar is filled with LN2 and the copper block is suspended in it; an SPRT is inserted into the block and a calibration is performed against your own calibrated SPRT. The7196-4 includes four 8-mm ( 0.32 ” ) wells. The 7196-13 includes five 8-mm ( 0.32 ” ) wells and eight 6.35-mm ( 0.25 ” ) wells