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Figure 1.

V.  TYPICAL WIRING DIAGRAM.

 

See figure 1.

I.S.

PRE-AMP

FEDERAL SIGNAL

MICROPHONE 

FOR P.A. SYSTEM

GLAND

OR PLUG

MTL 7760 AC OR 

EQUIVALENT 

BARRIER

P.A. AUDIO 

INPUT

MULTIPAIR

CABLE

MTL 7760 AC OR 

EQUIVALENT 

BARRIER

TO PRE-AMP

IN SAFE AREA

Exd ENCLOSURE

HAZARDOUS AREA

SLEEVED

BLUE

BLUE

1 PAIR 

CABLE

4

2

3

1

HAZARDOUS AREA
I.S. CONTROL PANEL

SLEEVED

1

2

IP65 ENCLOSURE

1 PAIR 

CABLE

SAFE AREA

Exd GLAND

3

4

1

2

Exd GLAND

FEDERAL SIGNAL

MICROPHONE FOR

P.A./INTERCOM SYSTEM

290A5751B

Summary of Contents for EXI MIC1

Page 1: ...MODEL EXI MIC1 INSTALLATION AND SERVICE INSTRUCTIONS FOR FEDERAL MODEL EXI MIC1 INTRINSICALLY SAFE MICROPHONE 2562336B REV B 609 Printed in U S A ...

Page 2: ...blank page ...

Page 3: ...hat it is operating properly After testing is complete provide a copy of this instruction sheet to all operating personnel Establish a procedure to routinely check the installation for integrity and proper operation The product marking which may contain cautionary or other informa tion of importance to maintenance personnel should not be obscured in any way Failure to follow all safety precautions...

Page 4: ... Only factory provided service parts are to be used Only these compo nents have been verified and certified for use in hazardous areas No repairs or modifications are to be made to the microphone element as this will invalidate the certification The nameplate or markings which contain cautionary or other informa tion of importance to maintenance personnel should not be obscured After performing an...

Page 5: ...ia IIC T6 Temperature 35 C to 50 C Where indicates compliance with directive 94 9 EC hexagon symbol the specific marking of explosion protection 1 indicates suitability for use in a Zone 0 area G indicates suitability for use in the presence of gases ia indicates intrinsically safe protection IIC indicates gas group Acetylene Hydrogen T6 indicates a maximum surface temperature of 85 C 185 F Input ...

Page 6: ...air must be accompanied by a Return Material Authorization This R M A can be obtained from a customer service representative at Federal Signal At this time a brief explanation of the service requested or the nature of the mal function should be provided Address all communications and shipments to FEDERAL SIGNAL CORPORATION Industrial Products Service Department 2645 Federal Signal Drive University...

Page 7: ...ENT BARRIER P A AUDIO INPUT MULTIPAIR CABLE MTL 7760 AC OR EQUIVALENT BARRIER TO PRE AMP IN SAFE AREA Exd ENCLOSURE HAZARDOUS AREA SLEEVED BLUE BLUE 1 PAIR CABLE 4 2 3 1 HAZARDOUS AREA I S CONTROL PANEL SLEEVED 1 2 IP65 ENCLOSURE 1 PAIR CABLE SAFE AREA Exd GLAND 3 4 1 2 Exd GLAND FEDERAL SIGNAL MICROPHONE FOR P A INTERCOM SYSTEM 290A5751B ...

Page 8: ...blank page ...

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