Emerson World Class 3000 Manual de instrucciones descargar pdf (Pagina 95)

Instruction Manual

Appendix BX Rev. 1.2

January 1997

Rosemount Analytical Inc. A Division of Emerson Process Management Appendices B-7

World Class 3000

HEATER OVERHEATS.

NOTE: ON INITIAL STARTUP THE

TEMPERATURE OF THE PROBE MAY

OVERHEAT TO A NOMINAL TEMP OF

800°C(480°F).

CHECK IF THE YELLOW WIRE IS CONNECTED

TO POSITIVE AND THE RED TO NEGATIVE

ON BOTH “FROM ELECTRONICS” AND “FROM

PROBE” TERMINAL BLOCKS. (MODELS 218

AND 225 ONLY)

SET METER* ON 250 VAC SCALE.

CHECK “FROM ELECTRONIC”, ANALOG

HEATER TERMINALS IF THERE IS A

PULSATING NOMINAL 115 VAC ON J9.

CHECK “FROM PROBE”, TERMINALS AT

PROBE HEATER IF THERE IS A PULSATING

NOMINAL 44 VOLTS ON J2.

CHECK PROBE ELECTRONICS SETPOINT

HAS BEEN CHANGED ACCORDING TO

APPLICABLE ELECTRONICS PACKAGE IB.

SET METER* ON 50 VAC SCALE.

CHECK IF PROBE HEATER VOLTAGE

SELECTION JUMPER JM7 INSTALLED

(REMOVE JM8).

CONNECT THE WIRING

ACCORDING TO THE

DECALS ON THE TERMINAL

COVERS.

IF THE VOLTAGE IS

CONSTANTLY ON, THEN

THE TRIAC IN THE PROBE

ELECTRONICS IS SHORTED.

IF THE VOLTAGE IS

CONSTANTLY ON, THEN

THE TRIAC MODULE IN

THE HPS IS SHORTED.

YES

SYMPTOM

*SIMPSON MODEL 260 OR EQUIVALENT MULTIMETER.

34990014

Figure B-5. HPS Troubleshooting Flowchart, #2

1 2 ... 90 91 92 93 94 95 96 97 98 99 100 ... 157 158

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Emerson World Class 3000 Manual de instrucciones Pagina 95

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