Emerson World Class 3000 Manual de instrucciones descargar pdf (Pagina 94)

Instruction Manual

Appendix BX Rev. 1.2

January 1997

B-6 Appendices Rosemount Analytical Inc. A Division of Emerson Process Management

World Class 3000

HEATER DOES NOT HEAT

UP (DOES NOT INCREASE

IN OUTPUT).

SET METER* FOR 50 VAC.

PLACE PROBES ON

TERMINAL BLOCK J2,

“FROM PROBE”, PROBE

HEATER.

METER INDICATES

PULSATING NOMINAL

44 VAC.

DISCONNECT POWER FROM

HPS & PROBE ELECT. SET

METER ON RX1.

MEASURE RESISTANCE OF

HEATER BY PLACING

PROBES ON TERMINAL

BLOCK J2, “FROM PROBE”,

PROBE HEATER.

RESISTANCE MEASURED

SHOULD BE NOMINALLY

12 OHMS.

SET METER TO 250 VAC.

PLACE METER PROBES ON

J9, “FROM ELECTRONICS”,

ANALOG HEATER.

METER SHOULD REGISTER

A PULSATING NOMINAL

115 VAC.

YES

DISCONNECT POWER TO

HPS AND PROBE

ELECTRONICS. CHECK

ALL FOUR FUSES IN HPS.

FUSES BLOWN IN HPS.

CHECK THAT LINE VOLTAGE

IS CORRECT BY SELECTING

CORRECT JUMPERS

ACCORDING TO CHART ON

INSIDE OF HPS COVER.

REPLACE BLOWN FUSES.

HEATER IS OPEN.

REPLACE HEATER.

YES YES

YES

CHECK JUMPER JM2 IS

INSTALLED.

IF FUSES OK, POSSIBLE

PROBE ELECTRONICS TRIAC

FAILURE.

CHECK FUSES IN PROBE

ELECTRONICS.

POSSIBLE TRIAC FAILURE.

REPLACE HPS

MOTHERBOARD.

SYMPTOM

*SIMPSON MODEL 260 OR EQUIVALENT MULTIMETER.

34990015

Figure B-4. HPS Troubleshooting Flowchart, #1

1 2 ... 89 90 91 92 93 94 95 96 97 98 99 ... 157 158

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Emerson World Class 3000 Manual de instrucciones Pagina 94

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