Bently Nevada 3300/20, Руководство по эксплуатации

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80179-01
Dual Thrust Monitor Maintenance
I 32 I FIELD WIRING DIAGRAMS [CONT.]
SIGNAL INPUT RELAY
MODULE
CCU
M U ?
.4C
WIRING RECOMMENDATIONS:
SIGNAL MODULE TO PROXIMITORS: 1 3 — T O ":,2— AWG SOLID R STRANDED, 3
WIPE SHIELDED WITH INSULATING SHEATH.
C-NAL MODULE TO RECORDER/READOUT: 1 8 — T O A N G S O L D OR
STRANDED, 2 —WIRE SHIELDED WITH INSULATING SHEATH.
AL:\ SHIELDS TERMINATED T O SIGNAL MODULE COMMON.
„--1_)\ TO ELECTRICALLY ISOLATE A N D PROTECT COAXIAL. CONNECTIONS, USE CON—
NECTOR PROTECTOR K I T PART NO. 4 0 11 3 - 0 2 .
4. TO MINIMIZE GROUND LOOP NOISE PROBLEMS, A SINGLE E A R T H
GROUND (GND) TO SYSTEM COMON (COM) CONNECTION I S 'RECOMMENDED.
PROXIMITOR CASE MUST BE ELECTRICALLY ISOLATED FROM EARTH GROUND.
ELECTRICAL ISOLATION: 5 0 0 VA C (RMS) MIN. ISOLATION K I T PA RT NO.
19094-01 M AY BE USED TO SATISFY THE ISOLATION REQUIREMENT.
MAXIMUM CABLE LENGTH BETWEEN SIGNAL INPUT RELAY MODULE A N D PROX—
IMITOR MUST NOT EXCEED 1 0 0 0 FEET ( 3 0 0 METRES).
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5S3203
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