Vega VEGADIF 65 Operating Instructions Manual page 72

4 ... 20 ma differential pressure transmitter with metallic measuring diaphragm
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10 Supplement
Temperature range
-10 ... +60 °C (+14 ... +140 °F)
-40 ... +10 °C (-40 ... +50 °F)
+60 ... +85 °C (+140 ... +185 °F)
Applies also to instruments with analogue 4 ... 20 mA current output and refers to the set span.
Thermal change, current output
Fig. 52: Thermal change, current output
Influence of the system pressure on the zero point and span
316L, Alloy C276-, Alloy C276 gold-rhodium coated diaphragm
Measuring cell
Influence of the sys-
tem pressure to the
zero point
Influence of the sys-
tem pressure to the
span
Measuring cell
Influence of the system
pressure to the zero point
Influence of the system
pressure to the span
72
Measuring range
10 mbar, 30 mbar
100 mbar
500 mbar, 3 bar
16 bar
16 bar
10 mbar, 30 mbar
100 mbar
500 mbar, 3 bar
16 bar
40 bar
-40°C
-20°C
10 mbar
30 mbar
±0.15 % of
±0.35 % of
URL/7 bar
URL/70 bar
±0.035 % of
±0.14 % of
URL/7 bar
URL/70 bar
3 bar
±0.075 % of URL/7 bar
±0.14 % of URL/7 bar
< 0.05 %/10 K, max. < 0.15 %, each with -40 ... +80 °C
(-40 ... +176 °F)
0,15 %
40°C
60°C
20°C
-0,15 %
100 mbar
±0.15 % of
URL/70 bar
±0.14 % of
URL/70 bar
16 bar
±0.075 % of URL/70 bar
±0.14 % of URL/70 bar
Thermal changes of the zero sig-
nal and the output span relating
to the adjusted span
±(0.31 x TD + 0.06) %
±(0.18 x TD + 0.02) %
±(0.08 x TD + 0.05) %
±(0.1 x TD + 0.1) %
±(0.08 x TD + 0.05) %
±(0.45 x TD + 0.1) %
±(0.3 x TD + 0.15) %
±(0.12 x TD + 0.1) %
±(0.15 x TD + 0.2) %
±(0.37 x TD + 0.1) %
80°C
500 mbar
±0.075 % of
URL/70 bar
±0.14 % of
URL/70 bar
40 bar
±0.075 % of URL/70 bar
±0.14 % of URL/70 bar
VEGADIF 65 • 4 ... 20 mA

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