YOKOGAWA PH202G User Manual

IM 12B07D02-01E
Specification 2-7
2-4. Control Drawing of PH202S mA HART
®
Specification (IECEx).
PH202S
(pH/ORP-transmitter)
Safe area
Uo = 31.5 Volt DC
Io = 100 mA
Po = 1.2 Watt
EX ia or ib Certified Repeater
Power Supply
(HART Compatible)
Output
Supply
SENSOR(S)
terminals 11-17
+
_
G
SENSOR(S)
terminals 11-17
Zone 0 or 1
Hazardous area Safe area
+
_
G
Functional
earth
Functional
earth
Intrinsically safe design
IEC-Ex standard EX ia IIC: T4 for ambient temp. < 55°C
T6 for ambient temp. < 40°C
Certificate nr. IECEx KEM 06.0052X
PH202S
+
_
Load
Resistance
EX ia or ib
Certified safety barrier or power
with Rint=300
:
Io = 100 mA
Uo = 31.5 Volt DC
Zone 0 or 1
Hazardous area
Functional
earth
+
_
24 volts DC Nominal
Supply Voltage.
Intrinsically safe design
IECEx standard EX ia IIC: T4 for ambient temp. < 55°C
T6 for ambient temp.< 40°C
Certificate nr. IECEx KEM 06.0052X
(HART compatible)
(pH/ORP-transmitter)
・ Sensor(s) are of a passive type to be regarded as ‘simple apparatus’.
・ Electrical data of the PH202S.
- Supply and output circuit (terminals + and -):
Maximum input voltage U
i
= 31.5 V. Maximum input current I
i
= 100 mA.
Maximum input power P
i
= 1.2 W.
Effective internal capacitance C
i
= 22 nF.
Effective internal inductance L
i
= 35 PH.
- Sensor input circuit (terminals 11 through 17):
Maximum output voltage U
o
= 14.4 V. Maximum output current I
o
= 32.3 mA.
Maximum allowed external capacitance Co = 600 nF. (for PH202S-E,-C,-U),
Co = 3.5 PF (for PH202S-N).
Maximum allowed external inductance Lo = 34 mH (for PH202S-E,-C,-U),
Lo = 76 mH (for PH202S-N).
・ Barriers and power supply specification must not exceed the maximum values as shown
in the diagram above. These safety descriptions cover most of the commonly used
industry standard barriers, isolators and power supplies.
・ The Hand Held Communicator must be of a IECEx certified intrinsically safe type in
case it is used on the intrinsically safe circuit in the hazardous area or of a IECEx
certified nonincendive type in case it is used in the nonincendive circuit in the
hazardous area.

YOKOGAWA PH202G Specifications

General

Brand	YOKOGAWA
Model	PH202G
Category	Transmitter
Language	English