The Model 7050i offers advanced percent of reading precision for increased capability with a single instrument, reducing the investment required to measure a wide pressure range. This model provides 0.005 % of reading precision from 25 % to 100 % of the instrument’s range. For pressures below the lower threshold of 25 %, the 7050i precision is 0.005 % of the lower threshold value. For example, a 100 psi (7 bar) Model 7050i provides 0.005 % of reading from 25 to 100 psi (1.7 to 7 bar); the precision for pressures from 0 to 25 psi (0 to 1.7 bar) is 0.005 % of 25 psi (1.7 bar). This unmatched precision is achieved through unique quartz pressure sensing technology and multiple quartz sensors in a single instrument. Various full scale pressure ranges from 0 to 5 to 0 to 1 500 psi (0 to 400 mbar to 0 to 100 bar) are available. For absolute mode operation, select either the barometric reference option, or the vacuum reference option, which requires an external vacuum pump connected to the reference port. The latter features an on-board vacuum sensor that allows automatic zeroing in absolute mode. Permanent absolute ranges to 50 psia (4 bar) are also available.

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