RECKMANN R14 Series, Руководство по эксплуатации

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Ex-BA line sensor
27
Doc 141917 | Rev. 03 [Type codes of the models]
NOTE
The following sensors (or sensors that are not isolated) are considered not isolated or earthed in
accordance with IEC/EN 60079-11:
#
Ø 3 mm; more than 4 internal conductors
#
Ø < 3 mm
#
Ø 3 mm; more than 6 internal conductors
For technical safety reasons these sensors must be connected to the equipotential bonding of the system
throughout the complete length of the intrinsically safe electrical circuit. The special conditions in
accordance with IEC / EN 60079-14 must be observed.
The permissible process temperature [°C] depends on the maximum input power (P
i
) and the
temperature class.
T
process
= T
max
– P
i
x R
th
Power ratings
R
th
= 281 at WR14-*150-**** and WR14-*200-**** (not isolated):
Temperature class P
i
= 20 mW P
i
= 50 mW P
i
= 250 mW P
i
= 500 mW P
i
= 750 mW
T1 (450°C) 434 426 369 300 229
T2 (300°C) 284 276 219 150 79
T3 (200°C) 189 181 124 55 /
T4 (135°C) 124 116 59 / /
T5 (100°C) 89 81 24 / /
T6 (85°C) 74 66 9 / /
Tab. 11: WR14 – Rth 281 power ratings
R
th
= 183 at WR14-*300-****:
Temperature class P
i
= 20 mW P
i
= 50 mW P
i
= 250 mW P
i
= 500 mW P
i
= 750 mW
T1 (450°C) 436 430 394 348 302
T2 (300°C) 286 280 244 198 152
T3 (200°C) 191 185 149 103 57
T4 (135°C) 126 120 84 38 /
T5 (100°C) 91 85 49 3 /
T6 (85°C) 76 70 34 / /
Tab. 12: WR14 – Rth 183 power ratings