22 N°: 999341_EN_DVR 2pro/12.07.2017Assembly and connection4.4 Vacuum connectionWARNINGRisk of bursting>> Prevent uncontrolled overpressure, e. g., whenconnecting to a locked or blocked tubing system.> Maximum admissable pressure at vacuum sensor:1,5 bar/1126 Torr (abs.).> Pollution and damages, especially at the flange, could affectthe measurement.Connection optionsConnection via PTFE hose DN 8/10orConnection via hose nozzle DN 6/10orConnection via small flange KF DN16Connection via hose nozzleRequired connection material: Hose nozzle DN 6/10 mm, kurlednut M14x1, locking ring; optionally: Vacuum hose and compatiblehose clamp (tool: fork wrench size 17).1. If installed, unscrew the small flange from the vacuum con‑nection of the gauge.2. Connect hose nozzle (a), kurled nut (b) and locking ring (c)as shown in the figure.(c)(a) (b)IMPORTANT!