Yokogawa EXA ISC202 2-wire Conductivity Transmitter/Analyzer - Manual (Page 24)

IM 12D06A03-01E
2-12 Specifications
2-8. Control Drawing of ISC202S FF/PB Specification (IECEx)
Safe area
Hazardous area
Zone 0 or 1
Safe area
Apparatus
I.S.
interface
I.S.
certified
Terminator
Ui = 24 V or Ui = 17,5 V
Ii = 250 mA Ii = 380 mA
Pi = 1,2 W Pi = 5,32 W
Ex ia IIC
T4 for ambient temp. d 55 qC
ISC202S-F
or ISC202S-P
I.S.
certified
Terminator
-
+
- +
Transmitter Transmitter
Sensor
Connections
- + - +
x Sensor(s) are of a passive type to be regarded as 'simple apparatus'.
x Electrical data of the ISC202S-F & ISC202S-P:
-
Supply and output circuit:
Maximum input voltage Ui = 24 V
Maximum input current Ii = 250 mA
Maximum input power Pi = 1.2 W
Effective internal capacitance Ci = 220 pF;
Effective internal inductance Li = 0 μH.
or
FISCO field device
Maximum input voltage Ui =17.5 V
Maximum input current Ii =380 mA
Maximum input power Pi =5.32 W
Effective internal capacitance Ci = 220 pF;
Effective internal inductance Li = 0 μH.
-
Sensor input circuit:
Maximum output voltage Uo = 14.4 V; Maximum output current Io = 20 mA
Maximum allowed external capacitance Co = 600 nF
Maximum allowed external inductance Lo = 88 mH
x Any I.S. interface may be used that meets the following requirements:
Uo d 24 V
Io d 250 mA
Po d 1.2 W
Co t 220 pF + Ccable; Lo t 0 μH + Lcable
or
FISCO power supply
Uo d 17.5 V
Io d 380mA
Po d 5.32 W
Co t 220 pF + Ccable; Lo t 0 μH + Lcable
x Electrical data of the ISC202S-B & ISC202S-D (Type of protection “n”)
-
Supply and output circuit:
Maximum input voltage Ui = 32 V
Effective internal capacitance Ci = 220 pF; Effective internal inductance Li = 0 μH.
-
Sensor input circuit:
Maximum output voltage Uo = 14.4 V; Maximum output current Io = 20 mA
Maximum allowed external capacitance Co = 3.5 μF
Maximum allowed external inductance Lo = 200 mH