VACUUBRAND DVR 4S - Manual (Page 9)

page 9 of 20
Documents are only to be used and distributed completely and unchanged. It is strictly the users´ responsibility to check
carefully the validity of this document with respect to his product. manual-no.: 99 90 72 / 13/08/2005
Press key ON/OFF to confirm the measuring cy-
cle and to terminate mode.
Display of the status of discharge of the power supply unit
When switching off the device, the remaining power supply unit capacity is indicated qualitatively by the
number of arrows in the display for a few seconds.
If the power supply unit symbol displays during
operation, the power supply unit needs to be re-
placed.
☞ Proper working of the instrument is no more
maintained.
Adjusting the operating time and measuring cycle
☞ The time until automatic switching off (operating time) can be set by the user within a range of 1 to 999
minutes (factory-set: 15 minutes) or continuous operation ”On”.
Press key MODE to select the time setting mode.
☞ The clock symbol and the actually set operat-
ing time in minutes are displayed.
To decrease operating time:
Press key MODE to change arrow to left.
Press key UP/DOWN to reduce operating time.
Press key ON/OFF to confirm.
☞ The device switches to mode ”adjustment of
measuring cycle”.
☞ The measuring cycle can be chosen between
Automatic, 1 measurement in 3s, 1 measure-
ment in 1s and 3 measurements in 1s.
Clock symbol
☞ The vacuum gauge is equipped with an auto-
matic sleep mode to save power of the power
supply unit when the instrument is not used.
When the clock symbol appears on the dis-
play, the vacuum gauge will switch off auto-
matically after approx. 1 minute.
Press key ON/OFF, the clock symbol disappears
and the preselected operating time will start again.
☞ The arrow to the right indicates that the time
can be increased by using key UP/DOWN.
Press key UP/DOWN to increase operating time.
To adjust measuring cycle:
☞ The measuring cycle as from the last opera-
tion (factory-set: ”A”) is displayed.
Press key UP/DOWN to select the measuring cy-
cle: A = Automatic (automatic determination of
the measuring cycle; frequent measurement in
case of large pressure change), S1 = 1 measure-
ment in 3s, S2 = 1 measurement in 1s, S3 = 3
measurements in 1s.
☞ The flashing of the arrow (only ”S1”, ”S2” or
”S3”) equals the frequency of the pressure
measurement).
Press key MODE to change arrow to left.