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ElMetro vacuum installation stand
ElMetro vacuum installation stand is intended for reproduction of absolute pressure within the range of small pressures and applied for verification of working vacuum meters in accordance to MP 140-89 “Recommendations. State system for Ensuring Uniform Measurement. Vacuum meters. Verification procedure”. There are stationary and mobile types. Supply package of the stand is agreed with a customer in dependence on required tasks.
Structure and working principle:
Vacuum measuring stand includes:
- a set of reference vacuum meters whose configuration is selected depending on the customer requirements;
- system for creating, maintenance and regulation of absolute pressure;
- PC with preinstalled brand-name software.
Reference vacuum meters:
Metrological characteristics of the stand are fully determined by reference vacuum meters of the 1st or 2nd class which are certified, listed in National register of measuring instruments of the Russian Federation and as a rule verified by D.I. Mendeleyev Institute for Metrology (VNIIM) (Saint-Petersburg city).
System for creating, maintenance and regulation of absolute pressure includes:
- Vacuum chamber which is connected to reference and verified vacuum meters via special ports;
- Pumping means: fore-vacuum and turbo-molecular pump;
- Leak valve and auxiliary devices.
Additional working vacuum meters and a controller manage and control pumping process and ultimate pressure value of vacuum chamber. Vacuum chamber could be of a spherical or cylindrical shape and is equipped with 4-6 pcs. of standard ports for connecting vacuum meters.
Technical characteristics:
- Reproduction (measurement) range of absolute pressure: from 10-4 (10-5) Pa to 105 Pa.
- Limits of permissible relative error for measuring absolute pressure: from 3% to 15% depending on measurement range and error of verified vacuum meters.
- Reference vacuum meters of the 1st and 2nd class according to GOST 8.107-81 (verification scheme of vacuum meters) are applied in dependence on customer requirements.
- Ultimate vacuum in vacuum chamber: 10-5 (10-6) Pa.
- Stand weight: not more than 200 kg.
- Power consumption: not more than 900 W.
Application experience:
Vacuum verification stands produced by ElMetro company are operated at Baikonur Cosmodrome, at enterprises of nuclear industry such as: FSUE The Russian Federal Nuclear Center named after E.I. Zababahin (Snezhinsk city) and Kovrov Mechanical Plant, JSC.
ElMetro company specialists have actively participated in development of reference carrier-devices and the highest military reference device – of the 2nd class with pressure values in the range between 10-3 and 103 Pa for the 32nd R&D institute of the Defense Ministry of the Russian Federation.
To make enquiry and get a commercial offer on vacuum verification stand of the Russian manufacturer ElMetro company, please, contact us by e-mail: info@elmetro.ru or tel.: +7 (351) 220-06-01. To discuss technical questions, please, refer to technical support tel.: +7 (351) 741-85-42 (43).