The calibration is carried out by direct comparison of the measurement values of the calibration item with those of the reference or working standard which has been directly or indirectly traced back to a national standard. The reference standards used are pressure gauges of long-time stability as, for example, pressure balances and liquid-level manometers, or less long-term stable electrical pressure gauges. They are calibrated at regular intervals and provided with a calibration certificate stating the expanded measurement uncertainty under standard conditions (among other things, standard or local acceleration due to gravity, 20°C, 1 bar). The reference standard is subject to surveillance and documentation by the accreditation body. If the calibration does not take place under standard conditions, corrections are to be applied to the pressure calculation. The measurement uncertainties to be attributed to these corrections due to influence quantities are to be taken into account as further contributions in the uncertainty budget1.
The accuracy of the jobs is determined by the manufacturer´specifications as per OEM manuals and instructions.
Ametek Jofra, Fluke, Wika, Sika, LR-Cal, Tek Know, Bourdon, MMC, S.M. Gauge Comp, Fema, Gesa, Melven, Druck, GE-Druck, Additel, Keller Druck, AbCo, Beste, Telan, GMI, Bogerd, Beamex, Omicron, Tess, Korea Nagano, CMT Genova, Vimex, JapSM, Abco, Nuova Firma,
From -1 Bar to 700 Bar Uncertainty 0,05%FS
Fluke 700G07 SN: 3226081, ENAC ILAC control periodical Certificate N: C-07071.00016
Fluke 700G31 SN: 4806162, ENAC ILAC control periodical Certificate N: C-07071.00015