Owner manual

11 95-85624.1
APPENDIX C
INTRINSICALLY SAFE
CLASS B, STYLE B WIRING
Hazardous (Classied) Locations:
Class I, Division 1, Group C, D
Class I, Division 2, Group A, B, C, D
Class II, Division 1, Group E, F, G
Class II, Division 2, Group F, G
Class III, Division 2
PM-5MPX
V+
V+
POWER RETURN POWER RETURN
TROUBLE +
TROUBLE –
ALARM +
ALARM –
ALARM – ALARM +
END OF LINE DEVICE
HAZARDOUS LOCATIONS: CLASS I, DIV. 1, GP. C, D CLASS II, DIV. 1, GP. E, F, G CLASS III, DIV. 2
NON-HAZARDOUS LOCATION
SAFETY BARRIER SAFETY BARRIER
CONTROL ROOM INSTRUMENTATION OPERATING AT OR LESS THAN 250 VOLTS RMS.
+24 VDC
DC RETURN
ALARM +
ALARM –
NOTES: 1. SUITABLE FOR INTRINSICALLY SAFE
INSTALLATION IN CLASS I, DIV. 1, GP. C,
D; CLASS I, DIV. 2, GP. A, B, C, D; CLASS
II, DIV. 1, GP. E, F & G; CLASS II, DIV. 2, GP. F & G. CLASS III, DIV. 2 HAZ-
ARDOUS LOCATIONS. WIRING METH-
ODS SHALL BE INSTALLED IN ACCOR
DANCE WITH ANSI/NFPA70 (NEC),
ANSI/NFPA 72 AND ISA RP 12.6.
2. I. S. BARRIERS MUST BE INSTALLED IN
ACCORDANCE WITH THE MANUFACTURER’S GUIDELINES.
3. THIS DRAWING SHOWS ONE SENSOR
CONNECTED IN A CLASS B, STYLE B
CONFIGURATION PER NFPA 72. MULTIPLE SENSORS MAY NOT BE CONNECTED TO THE SAME BARRIER. AN END OF LINE DEVICE (EOL) IS
REQUIRED TO MONITOR LINE CONTINUITY.
4. END OF LINE DEVICE VALUE PLUS
BARRIER RESISTANCE MUST PROVIDE
ADEQUATE SUPERVISION CURRENT
FOR FIRE ALARM CONTROL PANEL.
5. RESISTANCE BETWEEN BARRIER
GROUND AND EARTH GROUND MUST NOT EXCEED ONE OHM.
6. PM-5MPX INTERCONNECTS VIA FLYING
LEAD. EXTENSION CABLE SHALL
COMPLYWITH ANSI/NFPA 70 (NEC)
ARTICLE 504-30(b)(2).
7. CABLE SHIELD MUST BE TIED TO
INTRINSIC SAFETY GROUND AT THE BARRIER.
8. THE PM-5MPX SENSOR HAS BEEN
SYSTEM APPROVED WITH THE FM APPROVED BARRIERS LISTED IN THE BARRIER TABLE.
9. MAXIMUM CABLE LENGTH: 1000 FEET.
PM-5MPX
ELECTRICAL INTERFACE
Wire Color Signal
Red V+, Input Power
Orange V+, Input Power
Black Power Return
Brown Power Return
Yellow Alarm +
Green Alarm +
Blue Alarm –
Violet Alarm –
Gray Trouble +
White Trouble –
BARRIER PARAMETERS
MODEL MANUFACTURER Vt (V) It (MA)
9002/77-280-094-00 STAHL 28.1 87.0
Z978 PEPPERL + FUCHS 30.0 93.0
7278ac MTL 28.0 94.0
BARRIER TABLE
Figure C1—Intrinsically Safe Class B, Style B Wiring (Drawing No. 420032)