Wika IPT-11 Manual do Utilizador descarregar pdf (Página 38)

Dynamic behaviour output

Run-up time approx. 10 s

90 %

100 %

10 %

Fig. 10: Sudden change of the process variable. t

: dead time; t

: rise time; t

: jump response time

1 Process variable

2 Output signal

Dead time ≤ 150 ms

Rise time ≤ 100 ms (10 … 90 %)

Step response time ≤ 250 ms (ti: 0 s, 10 … 90 %)

Damping (63 % of the input variable) 0 … 999 s, adjustable

Input variable

Adjustment

Adjustment range of the min./max. adjustment relating to the nominal measuring range:

- Min. -5 … +95 %

- Max. -5 … +105 %

Adjustment range of the zero/span adjustment relating to the nominal measuring range:

- zero -5 … +95 %

- Span -5 … +105 %

Recommended max. turn down 10 : 1 (no limitation)

Nominal measuring ranges and overload resistance

Nominal range Overload capacity, max.

pressure

Overload capacity, min.

pressure

Gauge pressure

0 … 0.4 bar/0 … 40 kPa 2 bar/200 kPa -1 bar/-100 kPa

0 … 1.6 bar/0 … 160 kPa 10 bar/1000 kPa -1 bar/-100 kPa

0 … 16 bar/0 … 1.6 MPa 80 bar/8 MPa -1 bar/-100 kPa

0 … 40 bar/0 … 4 MPa 80 bar/8 MPa -1 bar/-100 kPa

38 Process pressure transmitter IPT-1* Vers. 3.0 - metalic sensor • 4 … 20 mA

9 Supplement

37300-EN-100302

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Wika IPT-11 Manual do Utilizador Página 38