Vega VEGABAR 64 4 … 20 mA_HART Bedienungsanleitung PDF herunterladen (Seite 58)

Thermal change zero signal and output sp an with absolute pressure measuring range 0.1 bar,

reference

temperature 20 °C (68 °F):

- In the compensated temperature range

0 … +100 °C (+32 … +212 °F)

< (0.1 % + 0.1 % x TD)

- Outside the compensated temperature

range

< (0.15 % + 0.15 % x TD)

Applies also to instruments with analogue 4 … 20 mA current output and refers to the set span.

Thermal change, current output < 0.15 % at -40 … +80 °C (-40 … +176 °F)

Long-term stability (similar to DIN 16086, DINV 19259-1 and IEC 60770-1)

Applies to digital interfaces (HART, Proﬁbus PA, Foundation Fieldbus) as well as to analogue

current output 4 … 20 mA. Speciﬁcations refer to the set span. Turn down (TD) = nominal

measuring range/set span.

Long-term drift of the zero signal < (0.1 % x TD)/year

Ambient conditions

Ambient, storage and transport temperature -40 … +80 °C (-40 … +176 °F)

Process conditions

The speciﬁcations to the pressure stage and the product temperature are used as an overview.

The speciﬁcations of the type label are applicable.

Pressure stage, process ﬁtting

- Thread 316L PN 60

- Thread Aluminium PN 25

- Thread PVDF PN 10

- Hygienic ﬁttings 316L PN 6, PN 10, PN 25, PN 40

- Flange 316L PN 16, PN 40,150 lbs, 300 lbs, 600 lbs

- Flange with extension 316L without PN speciﬁcation, PN 16, PN 40 or 150 lbs,

300 lbs, 600 lbs

- Flange PVDF PN 16

Product temperature standard version, depending on the meas. cell seal

10)

- FKM (VP2/A) -20 … +120 °C (-4 … +248 °F)

- EPDM (A+P 75.5/KW75F) -40 … +120 °C (-40 … +248 °F), 1 h: 140 °C/284 °F

cleaning temperature

- FFKM (Kalrez 63 75) -10 … +120 °C (+14 … +248 °F)

- FFKM (Chemraz 535) -30 … +120 °C (-22 … +248 °F)

Product temperature version with extended temperature range, depending on the meas. cell seal

as well as order speciﬁcation

- FKM (VP2/A) -20 … +150 °C (-4 … +302 °F)

- EPDM (A+P 75.5/KW75F) -40 … +150 °C (-40 … +302 °F)

10)

With process ﬁtting PVDF, max. 100 °C (212 °F).

58 VEGABAR 64 • 4 … 20 mA/HAR

10 Supplement

27525-EN-081209

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