Control Drawing Sc202S Ma Hart ® Specification - YOKOGAWA SC202G User Manual

2-8 Specifications
2-6. Control Drawing SC202S mA HART ® Specification (FM Intrinsically safe design).
Intrinsically safe design
FM Class I, Div.1, Group ABCD,
SC202S transmitter
Sensor
For electrical data:
terminals 11-16
see text below.
Max. cablelength: 60 mtr.
Cable dia. : 3...12 mm.
Classified Location
Intrinsically safe design
FM Class I, Div.1, Group ABCD,
SC202S transmitter
For electrical data:
Sensor
see text below.
terminals 11-16
Max. cablelength: 60 mtr.
Cable dia.: 3...12 mm.
Classified Location
・ Electrical data of the SC202S.
- Supply circuit (terminals + and ):
Maximum input voltage Vmax = 31.5 V.
Maximum input power Pmax = 1.2 W.
Effective internal capacitance Ci = 22 nF.
- Sensor input circuit (terminals 11 through 16) :
Maximum output voltage Vt = 14.4 V.
Maximum allowed external capacitance
Maximum allowed external inductance
・ If Hand Held Terminal (HHT) is not connected to the power supply lines of the SC202S
(see figure 1):
Any FM Approved barrier or power supply may be used that meets the following requirements.
Voc or Vt 31.5 V ; Isc or It
If HHT is connected to the power supply lines of the SC202S (see figure 2):
The Hand Held Terminal must be FM Approved. Refer to the manufacturers control drawing of the
HHT and the barrier/power supply to determine the cable parameters.
(Voc or Vt ) + VHHT
Ca 22nF + Ccable+ CHHT
When installing this equipment, follow the manufacturer 's installation drawing.
Installation should be in accordance with ANSI/ISA RP 12.06.01 "Installation of Intrinsically Safe
Systems for Hazardous (Classified) Locations" and the National Electrical Code (ANSI/NFPA 70).
Control equipment connected to the barrier/power supply must not use or generate more than 250
Vrms or Vdc.
・ Resistance between Intrinsically Safe Ground and earth ground must be less than 1.0 Ohm.
・ In case of using cable glands in Outdoor location, they shall be UV rated or made of metal.
WARNING
- Substitution of components may impair Intrinsic Safety
- To prevent ignition of flammable or combustible atmospheres, disconnect power before servicing or
read, understand and adhere to the manufacturer 's'live maintenance procedures.
IM 12D08B02-01E
T4 for ambient temp. < 55°C
T6 for ambient temp. < 40°C
+
_
G
Functional
earth
T4 for ambient temp. < 55°C
T6 for ambient temp. < 40°C
+
_
G
Functional
earth
100 mA; Ca
31.5 V; (Isc or It ) + IHHT
; La
Application Doc. No.: IKE026-A10 P.5 to P.6
FM Approved safety barrier or
power supply
with Rint = 300
(HART compatible)
Functional
earth
Unclassified Location
Maximum input current Imax = 100 mA.
Effective internal inductance Li = 35
Maximum output current It = 10 mA.
Ca = 59.36 nF.
La = 340 mH.
22nF + Ccable ; La
100 mA;
35 H + Lcable+ LHHT
24 volts DC Nominal
Supply Voltage.
+
-
Load
Resistance
Figure 1
FM Approved
Power Supply
(HART compatible)
Output
+
_
Supply
Ùnclassified Location
Figure 2
35 H + Lcable
H.