3090A Datasheet, PDF (6/8 Pages) Honeywell Solid State Electronics Center – Industrial VRS Magnetic Speed Sensors

Hazardous Location
CONTROL DRAWING FOR SINGLE CHANNEL BARRIERS
Hazardous Location
Speed Sensor
Non-hazardous Location
HAZARDOUS LOCATIONS
Catalog listing 3042H20:
Class I, Groups A, B, C, D
Class II, Groups E, F, G
Class III
Catalog listing 3042A:
Class I, Groups A, B, C, D
ENTITY PARAMETERS
Vmax = 24 V, Imax = 35 mA, Li = 26 mH, Ci = 0 μF
Any barrier (see General Notes) with entity parameters
connected in accordance with barrier manufacturers
instructions of:
Vmax > Voc
Ca > Ci + cable capacitance
Imax > Isc
La > Li + cable inductance
SYSTEM PARAMETERS
Any barrier (see General Notes) having one of the following
specified parameters:
Vmax
30
25
Rmin
707
580
Vmax
20
15
Rmin
421
278
Vmax
10
5
Rmin
136
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Intrinsic Safety Barrier
GENERAL NOTES
1. For jurisdictions requiring certification to the applicable
Canadian standards, the barrier must be CSA Certified
and the system must be installed in accordance with the
Canadian Electrical Code Part 1.
2. For jurisdictions requiring certification to the applicable
Occupational Safety and Health Administration (OSHA)
standards, the barrier must be CSA NRTL or equivalent
and the system must be installed in accordance with the
National Electrical Code (NEC), article 504 or
ANSI/NFPA 70.
SENSOR GROUNDING
Catalog listing 3042A: Sensor housing must be connected to
intrinsically safe system ground during installation.
Catalog listing 3042H20: Green wire must be connected to
intrinsically safe system ground.
Exia = Intrinsically Safe, Sécurité Intrinsèque
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