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Operation
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32
6.2 Sensor adjustment, in general
6.2
Sensor adjustment, in general
The 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 normal
or when irregularities in pressure reading emerge.
Mostly the adjustment under vacuum will do see chapter
6.2.3 Adjustment under vacuum on page 36
6.2.3 Adjustment under vacuum on page 36
6.2.1 Adjustment at atmospheric pressure
6.2.1
Adjustment at atmospheric pressure
For correct adjustment the exact atmospheric pressure at your
location is important. Exact data are provided, for example, by
the weather service or an airport in your area. A precise counter
barometer if available also displays the current atmospheric pres‑
sure.
Sensor adjustment at atmospheric pressure
1. Remove gauge from vacuum port and make sure that atmo‑
spheric pressure is present.
2. Press and hold the UP/DOWN
and then press ON/OFF
5 Display adjustment mode ‑ only active for approx. 20
seconds, as long as no further key is pressed.
3. Press the UP/DOWN
UP/DOWN
rent atmospheric pressure is displayed, e. g., 1005 mbar.
Adjustment range 700–1060 mbar (525–795 Torr)
ƒ
Changing pointer direction with MODE key
ƒ
= decrease value /
key at the switched‑off gauge
UP/DOWN
ON/OFF.
key repeatedly or hold it until the cur‑
MODE key
20901134_EN_DVR 3pro_V1.4_060420
= increase value
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