Vega D86_D87 Hydrostatic pressure transmitters Bedienungsanleitung PDF herunterladen (Seite 36)

36 Pressure transmitters D86/D87

Max. 32 index markers (value pairs) can be

entered.

• Quit the menu with " ".

• Confirm the message with " " and your

individual linearisation curve will be saved

in the sensor.

Again in the menu window "

Conditioning

" you

can enter a measured value integration with

the menu item "

Integration time

". This is useful

for fluctuating product surfaces to smooth the

display and output of measured values. As a

standard feature, the integration time is pre-

set to 0 seconds.

• Quit the menu with " ".

You are again in the menu window

Instrument

data parameter adjustment

".

300 mbar

= 5 liters

0 mbar

= 0 liters

700 mbar

= 35 liters

1000 mbar

= 100 liters

Vacuum

Saline

solution

Pressure

transmitter

Setup

In the field "

Transfer measured value

" the

current pressure as a percentage of the

adjusted span is displayed. The measuring

span has already been adjusted with the

min./max adjustment. In our example this is in

the range between 50 … 1000 mbar.

The user-programmable linearisation curve is

generated by index markers, consisting of

the value pairs "

Linearised

" (volume in % or in

the selected unit) and "

Percentage value

"

(level or filling height in %).

Defining the linearisation curve by incre-

mental filling

In the characteristics of the example (evacu-

ated vessel), you see four index markers or

value pairs. There is always a linear interpola-

tion between the index markers.

• Click in the check box "

Show scaled val-

ues

", to have the selected unit of measure-

ment displayed on the y-axis (left bottom

part in the menu window).

Index marker 1 is at 0 % level or pressure

(percentage value [%]), corresponding to an

actual pressure of 0 mbar.

Index marker 2 is at 30 % level or pressure

and 5 % filling volume.

Index marker 3 is at 70 % level or pressure

and 35 % filling volume.

Index marker 4 is at 100 % level or pressure

and 100 % filling volume (100 litres).

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