WIKA DPT-10 - Manual (Page 51)

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 example, menu item "Part sum counter".
Part sum counter
0 .0000 10 00
gal
Modify settings?
2 Activate the function "Modify settings?" with [OK].
Part sum counter
▶ Effective pressure transmitter
Unit
3 Confirm with [OK] "Effective pressure transmitter".
Part sum counter
▶ Mass flow
▶ Volume flow
Without unit
4 Select the requested variable with [->] and confirm with [OK].
5 Select calibration unit of the effective pressure transmitter with [-
>
] , for example m
3
/s and confirm with [OK].
Leak flow volume sup-
pression with flow
Total amounts counter
and subtotalizer with
flow
Differential pressure transmitter DPT10 - metal measuring diaphragm • Profibus PA 51
6 Adjustment with the indicating and adjustment module
37245
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EN
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