vacuubrand DVR 3pro Instructions For Use Manual

Also see for DVR 3pro: Instructions for use

32 20901134_EN_DVR 3pro_V1.4_060420Operation6.26.2 Sensor adjustment, in generalSensor adjustment, in generalThe gauge is intended for continuous operation.Adjustment is not part of the everyday operation. Perform adjust‑ment only when the measured values differ from reference normalor when irregularities in pressure reading emerge.Mostly the adjustment under vacuum will do  see chapter6.2.3 Adjustment under vacuum on page 366.2.3 Adjustment under vacuum on page 366.2.16.2.1 Adjustment at atmospheric pressureAdjustment at atmospheric pressureFor correct adjustment the exact atmospheric pressure at yourlocation is important. Exact data are provided, for example, bythe weather service or an airport in your area. A precise counterbarometer if available also displays the current atmospheric pres‑sure.Sensor adjustment at atmospheric pressure1. Remove gauge from vacuum port and make sure that atmo‑spheric pressure is present.+ 2. Press and hold the UP/DOWNUP/DOWN key at the switched‑off gaugeand then press ON/OFFON/OFF.5 Display adjustment mode ‑ only active for approx. 20seconds, as long as no further key is pressed.3. Press the UP/DOWNUP/DOWN key repeatedly or hold it until the cur‑rent atmospheric pressure is displayed, e. g., 1005 mbar. Adjustment range 700–1060 mbar (525–795 Torr) Changing pointer direction with MODE keyMODE key= decrease value / = increase value