Hardware reference guide

Intrinsically Safe Modules
450
35013379 02 October 2007
The following is a FM certified wiring diagram for this module.
V1 (-) V1 (+)
N/C
Signal 1
N/C
Signal 2
N/C N/C
V3 (-) V3 (+)
N/C
Signal 3
N/C
Signal 4
N/C N/C
V5 (-) V5 (+)
N/C
Signal 5
N/C
Signal 6
N/C N/C
V7 (-) V7 (+)
N/C
Signal 7
N/C
Signal 8
N/C N/C
HAZARDOUS LOCATION
Class I Div I Group A, B, C, D
Class II Div I Group E, F, G
I.S. Module AII 330 10
Blue Terminal Strip
V2 (-) V2 (+)
V4 (-) V4 (+)
V6 (-) V6 (+)
V8 (-) V8 (+)
I.S. 3 wire
transmitter
I.S. 2 wire
transmitter
I.S. + 14.5 Vdc @ 25 mA
Note 1. Only shielded cables should be used for connections.
Shields should be left open at the field end and connected to
chassis ground at the Module end.
Note 2. Pins marked N/C are not electronically connected to
the Module.
Note 3. Only 140 XBP 0xx 00 backplanes should be used for
mounting this module.
Note 5. The Entity Concept allows interconnection of intrinsically
safe apparatus with associated apparatus not specifically
examined in combination as a system when the approved values
of Voc and Isc for the associated apparatus are less than or
equal to Vmax and Imax for the intrinsically safe apparatus and
the approved values of Ca and La for the associated apparatus
must be equal to or are greater than Ci and Li for the intrinsically
safe apparatus plus all cable parameters.
Ca ≥ Ci + Ccable; La ≥ Li + Lcable; Voc ≤ Vmax; Isc ≤ Imax
Note 6. Simple Apparatus is defined as a device which will
neither generate nor store more than 1.2V, 0.1A, 20uJ, or 25 mW.
For examples, switches, Thermocouples, LEDs and RTDs, etc.
Note 7. Wiring methods must be in accordance with National
Electrical Code NFPA 70, Article 504 and ANSI/ISA RP 12.6
“Wiring Practices for Hazardous (classified) Locations
Instrumentation Part I: Intrinsic Safety.”
Note 8. Control room equipment connected to associated
apparatus should not use or generate more than 250 Vrms.
Note 9. All modules must be installed in an enclosure that meets
the requirements of ANSI/ISA S82.01.
Note 10. No revision to this drawing without prior FMRC approval.
Note 4. Three wire transmitters should be provided power only
from the Module. External Power Supply should not be used.
Note 11. For Schneider Electric internal use only. For control sheet,
refer to 19-100986 Rev 1.
Class III Div I
Chassis
Ground
Chassis
Ground
31001363 Rev 01
140 AII 330 10 Wiring Diagram
HAZARDOUS LOCATION,
Class I, Div 2 Group A, B, C, D
Note 12. For Division 2 installation, the apparatus shall be installed in
compliance with the enclosure, mounting, spacing, and
segregation requirements of the ultimate application, including
access only by the use of a tool and provision for Division 2 wiring
methods.
Notes Related to FM Certification
This IS field device should meet note 6 or should be FM approved with entity concept in Note 5 appropriate for
connection with IS Analog Current IN Module with Concept Parameters listed below. The entity parameters are per channel.
Voc = 23.8 VDC
Isc = 112 mA/Ch
Ca = 127 nf/CH
La = 2.9 mH/Ch
Po = 622 mW/CH
This document provided by Barr-Thorp Electric Co., Inc. 800-473-9123 www.barr-thorp.com