Cooper Crouse-Hinds ESR Serie Información De Instalación Y Mantenimiento

ESR SERIES BELL SIGNALS
Installation & Maintenance Information
ESR bell signal for DC
APPLICATION
ESR Bell Signals are used for call signals, alarms, or in various
other signaling applications. They are designed to be used in
specific hazardous atmospheres such as in chemical plants, oil
and gas refineries, bulk loading stations, paint and varnish
manufacturing plants, grain processing industries and grain
elevators, as well as in certain metal, coal, combustible fiber
processing or handling areas.
ESR Bell Signals are supplied with a vibrating or single stroke
striker mechanism with 6 or 10 inch diameter gongs. Audible
sound pressure level ratings exceeding 78 dba (at 10' on axis)
are supplied with 12, 24, 48, 115 or 230 vac and 12, 24, 48 or
125 vdc voltage ratings. Refer to nameplate for specific sound
pressure level rating.
ESR Bell Signals are suitable for use in Class I, Groups C, D;
Class II, Groups E, G and Class III hazardous (classified) areas
as defined by the National Electrical Code®. ESR AC Bell
Signals are suitable for fire alarm service.
Specific ESR Bell Signals are suitable for use in Class 1, Group
B locations when identified by suffix GB added to catalog number
and marked on nameplate.
DIMENSIONS
IF999 • 03/03
SAVE THESE INSTRUCTIONS FOR FUTURE REFERENCE
Gong
Diameter Dimensions (In Inches)
(In Inches) a b c
6 6 6 3/4 5 1/4
10 10 10 3/4 6
†For DC units
Copyright © 2003, Cooper Industries, Inc.
ESR bell signal for AC
INSTALLATION
To prevent electrical shock, all power must be turned off
before and during installation and maintenance.
IMPORTANT
All units must be installed on a flat vertical surface with the striker
positioned at the bottom. Bell is factory set for the loudest sound
output indicated by a mark on the gong at the striker position.
The body cover assembly permits locating the conduit hub at the
top, bottom or either side. Body cover "top" is marked to indicate
correct position for mounting assembly.
1. Remove gong then mount assembly in desired location
using two bolts or screws through the two 11/32" diameter
mounting holes.
2. For AC voltage units:
A. Remove the four hex head screws that secure the
body cover assembly to the housing.
Hammers or prying tools must not be allowed to damage the
flat ground-joint surfaces. Do not handle covers roughly, or
place them on surfaces that might damage or scratch the flat
ground-joint surfaces.
d†
B. Install approved sealing fitting when required by Section
11 1/8 501-5 and/or 502-5 of the National Electrical Code plus
any other applicable codes. Hazardous Location
15 1/8
information specifying class and group listing is marked
on the nameplate of unit.
IF 999
WARNING
CAUTION
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