Vega VEGAPULS 64 - Derating curves - Plastic horn antenna; Derating curves - Encapsulated antenna system

78
11 Supplement
VEGAPULS 64 • Two-wire 4 … 20 mA/HART
51141-EN-210219
1
2
0 °C
(32 °F)
-40 °C
(-104 °F)
80 °C
(176 °F)
80 °C
(176 °F)
-40 °C
(-104 °F)
Fig. 51: Derating, ambient temperature, plastic horn antenna
1 Ambient temperature
2 Process temperature
1
2/
3
4
A
B
0°C / 32°F
-40°C / -40°F
80°C / 176°F
58°C / 136°F
62°C / 144°F
66°C / 151°F
130°C
266°F
100°C
212°F
50°C
122°F
80°C
176°F
-40°C
-40°F
Fig. 52: Derating, ambient temperature, ange DN 50/2" and DN 80/3" with encapsulated antenna system up to
+130 °C (+266 °F)
A Ambient temperature
B Process temperature
1 Aluminium housing
2 Plastic housing
3 Stainless steel housing (precision casting)
4 Stainless steel housing (electropolished)