YOKOGAWA PH202G (S), User Manual

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IM 12B07D02-01E
2-14 Specification
2-11. Control Drawing of PH202S FF/PB Specification (FM Intrinsically safe Entity).
Unclassified Location
Classified Location
Division 1
FM Approved
barrier
Voc (Vt) d 24 V
Ioc (It) d 250 mA
Poc (Pt) d 1.2 W
Ca t 220pF+ Ccable
La t 0 H + Lcable
Sensor
Connections
Max. cablelength: 60 mtr.
Cable dia. : 3…12 mm.
FM Class I, DIV. 1, Group ABCD
T4 for ambient temp. d 55 q C
-
+
I.S.
certified
Terminator
I.S.
certified
Terminator
PH202S-F
or PH202S-P
Transmitter
Transmitter
-
+
Sensor
Connections
-
+
-
+
x Sensor(s) are of a passive type to be regarded as 'simple apparatus', devices which neither
store nor generate voltages over 1.5 V, currents over 0.1 A, power over 25 mW or energy over
20 P J, or are FM Approvals entity approved and meet connection requirements.
x Electrical data of the PH202S-F & PH202S-P:
-
Supply circuit:
Maximum input voltage Vmax = 24 V
Maximum input current Imax = 250 mA
Maximum input power Pi=1.2 W
Effective internal capacitance Ci = 220 pF;
Effective internal inductance Li = 0 P H.
-
Sensor input circuit:
Maximum output voltage Vt = 14.4 V;
Maximum output current It = 32.3 mA
Maximum allowed external capacitance Ca = 600 nF
Maximum allowed external inductance La = 34 mH
x Any FM Approved barrier may be used that meets the following requirements:
Voc or Vt d 24 V
Ioc or It d 250 mA
Poc or Pt d 1.2 W
Ca t 220 pF + Ccable; La t 0
μ
H + Lcable
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).
Associated apparatus connected to the barrier must not use or generate more than
250 Vrms or Vdc.
x Resistance between Intrinsically Safe Ground and earth ground must be less than 1.0 Ohm.
x
In case of using cable glands in Outdoor location, they shall be UV rated or made of metal.