WIKA DPT-10 - Manual (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