Manualshelf

Owner's manual

ManualsBrandsYokogawa ManualsSensorsEXA ISC202 2-wire Conductivity Transmitter/Analyzer
11121314151617181920
IM 12D06A03-01E
Specifications 2-7
2-3. Control Drawing ISC202S mA HART
®
Specification (IECEx).
・ Electrical data of the ISC202S.
- 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
= 20 mA.
Maximum allowed external capacitance C
o
= 600 nF (for ISC202S-A),
C
o
= 3.5 PF (for ISC202S-N)
Maximum allowed external inductance L
o
= 88 mH (for ISC202S-A),
L
o
= 200mH (for ISC202S-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 non-incendive type in case it is used in the non-incendive circuit in the
hazardous area.
ISC202S
((Inductive Conductivity-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
ISC40S Sensor
terminals 11-17
+
_
G
ISC40S Sensor
terminals 11-17
Zone 0 or 1
Hazardous area Safe area
+
_
G
Functional
earth
Fanctional
earth
Intrinsically safe design
IECEx standard Ex ia IIC: T4 for ambient temp. < 55°C
T6 for ambient temp. < 40°C
ISC202S
+
_
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
Fanctional
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
(HART compatible)
(Inductive Conductivity-transmitter)
Certificate nr. IECEx KEM 06.0054X
Certificate nr. IECEx KEM 06.0054X