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Quick Installation Guide
00825-0100-4664, Rev BB
January 2013
Rosemount 8712 / 8700 Series
30
Table 12. Electrical Data
Rosemount 8705 and 8711 Sensors
Coil excitation circuit: 40 V DC (pulsed), 0,5 A, 20 W maximum
Electrode circuit: in type of explosion protection intrinsic safety EEx ia IIC, U
i
= 5 V, l
i
= 0.2 mA,
P
i
= 1 mW, U
m
= 250 V
Table 13. Relation between ambient temperature, process temperature, and temperature class
(1)
(1) This table is applicable for KD approval codes only.
Meter Size (Inches) Maximum Ambient Temperature
Maximum Process
Temperature
Temperature
Class
1
/2
115 °F (65 °C) 239 °F (115 °C) T3
1 149 °F (65 °C) 248 °F (120 °C) T3
1 95 °F (35 °C) 95 °F (35 °C) T4
1
1
/2
149 °F (65 °C) 257 °F (125 °C) T3
1
1
/2
122 °F (50 °C) 148 °F (60 °C) T4
2 149 °F (65 °C) 257 °F (125 °C) T3
2 149 °F (65 °C) 167 °F (75 °C) T4
2 104 °F (40 °C) 104 °F (40 °C) T5
3 - 36 149 °F (65 °C) 266 °F (130 °C) T3
3 - 36 149 °F (65 °C) 194 °F (90 °C) T4
3 - 36 131 °F (55 °C) 131 °F (55 °C) T5
3 - 36 104 °F (40 °C) 104 °F (40 °C) T6
6 115 °F (65 °C) 275 °F(135 °C) T3
6 115 °F (65 °C) 230 °F (110 °C) T4
6 115 °F (65 °C) 167 °F (75 °C) T5
6 140 °F (60 °C) 140 °F (60 °C) T6
8-60 115 °F (65 °C) 284 °F (140 °C) T3
8-60 115 °F (65 °C) 239 °F (115 °C) T4
8-60 115 °F (65 °C) 176 °F (80 °C) T5
8-60 115 °F (65 °C) 145 °F (65 °C) T6
4664RevBBQIG.fm Page 30 Friday, January 11, 2013 6:13 PM