YOKOGAWA PH200 User Manual

Wiring diagrams for hazardous areas
IM 12B6C2-E-H
10
Intrinsically safe design
(CELENEC standard EEX ib [ia] IIC T4)
pH-transmitter
EXA PH200S
Intrinsically safe design
(CELENEC standard EEX ib [ia] IIC T4)
pH-transmitter
EXA PH200S
EEx ib
Certified safety barrier
EEx ib
Certified distributor with
input/output isolation
Electronic current
limiting barrier
Vmax: 31.5 V
lmax: 35 mA
Pmax: 1,1 W
Zenerbarrier with
resistor
Vmax: 28 V
lmax: 93.3 mA
Pmax: 0.66 W
Shunt zener barrier or
supply unit or
isolated repeater
Vmax: 22 V
Imax: 85 mA
Sensor
Distributor
Output
Supply
Sensor
Output
Supply
Protective earthProtective earth
Protective earth
Hazardous area Safe area
Zone 0 or 1 Zone 1
Hazardous area Safe area
Zone 0 or 1 Zone 1
+
–
+
–
G
+
–
+
–
G

YOKOGAWA PH200 Specifications

General

Brand	YOKOGAWA
Model	PH200
Category	Measuring Instruments
Language	English