Instruction Manual

IB-106-340 Rev. 3.0 December 2003

Oxymitter 4000

SYMPTOM — NO TEST GAS FLOW (CONTINUED)

CONTINUED FROM SHEET 1 OF 2

PLACE JUMPER BETWEEN CAL RET TERMINAL AND EITHER HI GAS OR LO GAS TERMINAL OF J3. SEE NOTE 1.

NOTE 1: SECURELY TIGHTEN ALL J3 SCREW TERMINALS ON POWER SUPPLY BOARD TO MAKE CONNECTIONS.

NOTE 2: USE A SIMPSON MODEL 260 OR EQUIVALENT MULTIMETER.

NOTE 3: IF REPLACING THE CHECK VALVE DOES NOT CORRECT THE PROBLEM, A CLOG COULD EXIST IN THE RED SILICON GAS TUBE WITHIN THE PROBE.

IS THERE

YES

 

FLOW?

 

NO

USE METER (SEE NOTE 2) TO CHECK FOR SHORT BETWEEN CAL RET AND NO GAS TERMINALS OF J3.

INTERFACE BOARD IS NOT SENDING SIGNAL. REPLACE INTERFACE BOARD PER PARAGRAPH 9-8b.

NOTE 4: IF CHECKING CAL GAS 1 SOLENOID CONNECTOR J5, ENSURE CAL RET TERMINAL IS JUMPERED TO HI GAS TERMINAL OF J3. IF CHECKING CAL GAS 2 SOLENOID CONNECTOR J4, ENSURE CAL RET TERMINAL IS JUMPERED TO LO GAS TERMINAL OF J3.

IS THERE

YES

 

 

IS THERE

YES

REPLACE CHECK VALVE

DISCONNECT CAL GAS

 

 

 

 

 

PER PARAGRAPH 9-8e.

A SHORT?

 

 

LINE AT CHECK VALVE.

 

FLOW?

 

 

 

 

 

SEE NOTE 3.

 

 

 

 

 

 

 

 

 

 

NO

 

 

 

 

 

NO

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DISCONNECT SOLENOID FROM POWER SUPPLY BOARD AND USE METER TO MEASURE ACROSS TWO OUTER PINS OF BOARD CONNECTOR. SEE NOTE 4. CHECK BOTH SOLENOIDS.

DISCONNECT CAL GAS LINE AT TOP FITTING OF CAL GAS FLOWMETER.

IS THERE

NO

+30VDC?

 

YES

DISCONNECT CAL GAS LINE AT MANIFOLD OUTPUT PORT.

REPLACE POWER SUPPLY BOARD PER PARAGRAPH 9-8b.

IS THERE

YES

FLOW?

 

NO

REPLACE FAULTY CAL GAS FLOWMETER PER PARAGRAPH 9-8h.

REPLACE CLOGGED CAL GAS LINE BETWEEN CAL GAS FLOWMETER AND CHECK VALVE.

IS THERE

NO

REPLACE SOLENOID

FLOW?

 

 

PER PARAGRAPH 9-8c.

YES

REPLACE PRESSURE SWITCH

PER PARAGRAPH 9-8d.

37260041

Figure 8-19. SPS 4000 Troubleshooting Flowchart (Sheet 2 of 2)

8-24 Troubleshooting

Rosemount Analytical Inc. A Division of Emerson Process Management