YOKOGAWA ROTAMETER RAMC

7. EXPLOSION PROTECTED TYPE INSTRUMENTS
7- 2
All Rights Reserved. Copyright © 2006, Rota Yokogawa
IM 01R01B02-01E-E 5th edition October 01, 2020-00
Parameters of PROFIBUS terminal:
Table 7.1 Variant #1 and #2:
Type Fieldbus IIB Fieldbus IIC FISCO
Ui 17.5 V 24 V
According
IEC 60079-11
Annex G
Ii 380 mA 250 mA
Pi 1.31 W 1.31 W
Ci negligible negligible
Li negligible negligible
Table 7.2 Variant #3:
Type Fieldbus IIB Fieldbus IIC FISCO
Ui 17.5 V ---
According
IEC 60079-11
Annex G
Ii 380 mA ---
Pi 0.95 W ---
Ci negligible ---
Li negligible ---
Table 7.3 Variant #4:
Type Fieldbus IIB Fieldbus IIC FISCO
Ui 17.5 V 24 V
According
IEC 60079-11
Annex G
Ii 380 mA 250 mA
Pi 2.53 W 2.53 W
Ci negligible negligible
Li negligible negligible
7.1.2 Marking
Name plates on electronic transmitter:
Rota Yokogawa
Rheinstrasse 8
D-79664 Wehr
WT-MAG Mat. No. M38
Serial No. 
Ex ia IIB/IIC T6/T4 Gb
PTB 12 ATEX 2003 X
See certicate for data
FISCO eld device
II 2G
Ex ia IIB/IIC T6/T4 Gb
IECEx PTB12.0020X
See certicate for data
FISCO eld device