GE Druck DPI 740 User Manual page 42

34
Procedure (Figure 3-10)

This sub-menu divides into two selections, a one-point
calibration and a two-point calibration.
C :T
AUTION HIS INSTRUMENT CONTAINS STATIC SENSITIVE COMPONENTS
HANDLE WITH EXTREME CARE
The calibration procedure is protected by a PIN
and the CAL option link LK1 located on the PCB.
To carry out a calibration LK1 must be in the
position.
from previous
exit set-up menu
sub-menu set
SET
sub-menu
CAL.
F1
One-point calibration
For the one-point calibration the instrument stores the
relationship between pressure and output.
The calibration carried out at manufacture is a two-point calibration
against a pressure standard traceable to National Standards. Carrying
out a one-point calibration can significantly down-grade the
instrument's accuracy if in doubt consult the manufacturer before
proceeding.
Two-point calibration
This calibration provides a more accurate reading of the
applied pressure, the instrument calculating a more complex
correction for the displayed reading.
K0200 Issue No. 1
.
With the instrument connected to
an appropriate pressure standard,
the calibration sub-menu accessed
through the set-up menu.
Important note
DPI 740 User Manual
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