FIELD: measurement.
SUBSTANCE: invention relates to the field of dynamic calibration methods of automatic tightness control devices. Disclosed is a device for calibrating tightness control devices, comprising connected resistors, forming a reduction circuit for obtaining changes in test pressure from the calculated functional pressure-resistance relationship when emptying the measuring chamber of known volume, it differs from known designs in that reducing scheme consists of linear active resistances connected in series to calibrate pressure gauges by change of test pressure or connected in parallel for calibration of leak detectors downstream.
EFFECT: technical result is higher sensitivity of calibration of pressure gauges and leak detectors.
1 cl, 2 dwg
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