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20901134_EN_DVR 3pro_V1.4_060420
Operation
6.2
6.2 Sensor adjustment, in general
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
6.2.1 Adjustment at atmospheric pressure
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
UP/DOWN
key at the switched‑off gauge
and then press
ON/OFF
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
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 key
MODE key
= decrease value /
= increase value
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