Readjustment of vsp 3000, 3000”, pg. 56, Of vsp 3000”, pg – VACUUBRAND DCP 3000 User Manual

Page 56: Notice adjustment at atmospheric pressure

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page 56 of 64

Readjustment of VSP 3000

The vacuum gauge head VSP 3000 was adjusted using

factory standards, which are traceable through regular

calibration in an accredited laboratory (DAkkS calibration

laboratory) to the German national pressure standard.

Depending on the process and/or accuracy requirements,

check the adjustment and readjust if necessary. For re-

adjustment, the device has to be adjusted both at atmo-

spheric pressure as well as under vacuum but only if the

reference pressures are known with certainty.

For adjustment, install the pressure transducer VSP

3000 in the same orientation in which it will be oper-

ated later at the application.

Allow the pressure transducer a period of minimum 20

minutes to preheat.

+

During the first 20 minutes after having connected the

pressure transducer VSP 3000 to a energized vacuum

gauge DCP 3000, adjustment of the VSP 3000 is not

possible.

”---- Torr” is displayed if adjustment is not possible in the

actual pressure range.

NOTICE

Adjustment at atmospheric pressure

An adjustment at atmospheric pressure is only

possible in the upper pressure range.

Vent the measurement connection of the VSP 3000 pressure trans-

ducer. Make sure that the measurement connection of the VSP 3000

is at atmospheric pressure. Allow the pressure transducer a

minimum

of 20 minutes to preheat at this pressure.

750 Torr

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