Wika DPT-10 User Manual download pdf (Page 75)

±(0.0015 % x TD + 0.053) of the set span +

inﬂuence of the isolating diaphragm

Inﬂuence of the product or ambient temperature

Applies to instruments in basic version with digital signal output (HART, Proﬁbus PA, Foundation

Fieldbus) as well as to instruments with analogue current output 4 … 20 mA. Speciﬁcations refer

to the set span. Turn down (TD) = nominal measuring range/set span.

Temperature range Measuring range Thermal changes of the zero

signal and the output span relat-

ing to the adjusted span

-10 … +60 °C (+14 … +140 °F) 10 mbar, 30 mbar ±(0.31 x TD + 0.06) %

100 mbar ±(0.18 x TD + 0.02) %

500 mbar, 3 bar ±(0.08 x TD + 0.05) %

16 bar ±(0.1 x TD + 0.1) %

16 bar ±(0.08 x TD + 0.05) %

-40 … +10 °C (-40 … +50 °F)

+60 … +85 °C (+140 … +185 °F)

10 mbar, 30 mbar ±(0.45 x TD + 0.1) %

100 mbar ±(0.3 x TD + 0.15) %

500 mbar, 3 bar ±(0.12 x TD + 0.1) %

16 bar ±(0.15 x TD + 0.2) %

40 bar ±(0.37 x TD + 0.1) %

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)

Inﬂuence of the system pressure on the zero point and span

316L, Alloy C276-, Alloy C276 gold-rhodium coated diaphragm

Measuring cell 10 mbar 30 mbar 100 mbar 500 mbar

Inﬂuence of the sys-

tem pressure to the

zero point

±0.15 % of URL/

7 bar

±0.35 % of URL/

70 bar

±0.15 % of URL/

70 bar

±0.075 % of URL/

70 bar

Inﬂuence of the sys-

tem pressure to the

span

±0.035 % of URL/

7 bar

±0.14 % of URL/

70 bar

±0.14 % of URL/

70 bar

±0.14 % of URL/

70 bar

Measuring cell 3 bar 16 bar 40 bar

Inﬂuence of the system

pressure to the zero point

±0.075 % of URL/7 bar ±0.075 % of URL/70 bar ±0.075 % of URL/70 bar

Diﬀerential pressure transmitter DPT10 - metal measuring diaphragm • Foundation Fieldbus 75

11 Supplement

37246-EN-100120

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Wika DPT-10 User Manual Page 75

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