Yokogawa RAMC - Manual (Page 97)

<10. EXPLOSION-PROTECTED TYPE INSTRUMENTS>
10-5
IM 01R01B02-00E-E 10th edition January 01, 2013 -00 All Rights Reserved. Copyright © 2003, Rota Yokogawa
10.3.2 Installation
Protection circuit for a power supply to meet the maximum values of the electronic transmitter :
Current limitation
S = 200 mA F Gasgroup Gasgroup IIC
= 1.33 W
to
- D = 27 V 5% 24V DC
“nL” Voltage
limitation L .0 mH
R
R1 1 IIB
+
Po Po = 1.06 W
I o = 187 mA I o = 150 mA
WT MAG 1 U o = 28.35 V U o = 28.35 V
- C o= 1.59 µF C o = 260 nF
L o = 10.0 mH o = 3
- R 1 = 160Ω, 5%,5W 1 = 200 Ω, 5%,4.6W
F101.EPS