Wika DPT-10 User Manual download pdf (Page 50)

Information:

When the instrument is not yet adjusted, then the display pressure for

100 % corresponds to the nominal measuring range of the sensor (in

the above example 500 mbar).

2 Set the requested mbar value with [->] and [OK].

3 Conﬁrm with [OK] and move to the menu overview with [ESC].

For an adjustment with ﬂow, simply enter the actual measured value

indicated at the bottom of the display.

The max. adjustment is ﬁnished.

For level measurement, a linearization is necessary for a ll vessels in

which the vessel volume does not increase linearly with the level - e .g.

in a cylindrical or spherical tank - and the indication or output of the

volume is requested.

Respective linearisation curves are stored for these vessels. They

indicate the relation between the percentage level and the vessel

volume. By activating the suitable curve, the percentage vessel

volume is displayed correctly.

Linearisation curve

linear

Enter the requested parameter via the appropriate keys, save your

settings and jump to the next menu item with the [->] key.

In some application, small ﬂow quantities should not be detected. With

the creeping quantity suppression, the ﬂow value can be suppressed

up to a certain % value. The default value is 5 % of the max. ﬂow value,

corresponding to 0.25 % of the max. diﬀerential pressure value. The

limit value is 50 %. This function depends on the selected linearization

function and is only available with root extracted characteristics.

The square root/bidirectional square root characteristics is very steep

at the zero point. This means that small changes in the measured

diﬀerential pressure cause big changes in the output signal. The leak

volume suppression stabilises the signal output.

The DPT10 has two internal totalizers. For both you can adjust volume

or mass as count function as well as separately the unit.

Proceed as follows:

1 Select, for exa mple, menu item "Part su m counter".

Linearization curve with

level

Leak ﬂow volume sup-

pression with ﬂow

Total amounts counter

and subtotalizer with

ﬂow

50 Diﬀerential pressure transmitter DPT10 - metal measuring diaphragm • F oundation Fieldbus

6 Adjustment with the indicating and adjustment module

37246-EN-100120

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Wika DPT-10 User Manual Page 50

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