YOKOGAWA SC202G User Manual

IM 12D08B02-01E
2-10 Specifications
・ Sensor is a thermocouples, RTD’s, passive resistive switch devices, or is CSA entity
approved and meet connection requirements.
・ Electrical data of the SC202S.
- Supply and output circuit (terminals + and -)
Maximum input voltage Vmax = 31.5 V. Maximum input current Imax = 100 mA.
Maximum input power Pmax = 1.2 W.
Effective internal capacitance Ci = 22 nF. Effective internal inductance Li = 35 PH.
- Sensor input circuit (terminals 11 through 16):
Maximum output voltage Voc = 14.4 V. Maximum output current Isc = 13 mA.
Maximum allowed external capacitance Ca = 59 nF.
Maximum allowed external inductance La = 200 mH.
・ Barriers and power supply should be CSA certified. The specifications must not exceed
the maximum values as shown in the diagram above. Installation should be in
accordance with Canadian Electrical Code, Part I.
Maximum safe area voltage should not exceed 250 VRMS.
For Class I, Div. 2, Group ABCD the CSA certified barrier is not required, and the Sensor
input circuit (terminals 11 through 16) is non-incendive having the parameters :
Maximum output voltage Voc = 14.4 V. Maximum output current Isc = 13 mA.
Maximum allowed external capacitance Ca = 2.9 PF.
Maximum allowed external inductance La = 450 mH.
・ The Hand Held Communicator must be of a CSA certified intrinsically safe type in case
it is used on the intrinsically safe circuit in the hazardous area, or of a CSA certified
non-incendive type in case it is used on the non-incendive circuit in the hazardous area.
Safe area
Vmax = 31.5 VoltDC
Imax = 100 mA
Pmax = 1.2 Watt
CSA certified
Power Supply
(HART compatible)
Output
Supply
Sensor
terminals 11-16
+
_
G
Sensor
terminals 11-16
Hazardous area Safe area
+
_
G
earth
earth
Intrinsically safe design
transmitter
SC202S
+
_
Load
Resistance
Imax = 100 mA
Vmax = 31.5 VoltDC
Hazardous area
earth
+
_
24 volts DC Nominal
Supply Voltage.
Intrinsically safe design
CSA Ex ia Class1, Div.1, Group ABCD, T4 for ambient temp. < 55°C
T6 for ambient temp. < 40°C
SC202S transmitter
CSA certified
safety barrier or power supply
with Rint=300 :
Suitable values are:
(HART compatible)
CSA Ex ia Class1, Div.1, Group ABCD, T4 for ambient temp. < 55°C
T6 for ambient temp. < 40°C
For electrical data:
see text below.
For electrical data:
see text below.
Suitable values are:
Functional
Functional
Functional
2-8. Control Drawing of SC202S mA HART
®
Specification (CSA)

YOKOGAWA SC202G Specifications

General

Brand	YOKOGAWA
Model	SC202G
Category	Transmitter
Language	English