Emerson Process Management IB106-340 instruction manual SPS 4000 Troubleshooting Flowchart Sheet 2

Instruction Manual

IB-106-340 Rev. 2.4 April, 2001

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 6-10b.

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	DISCONNECT CAL GAS
A SHORT?		LINE AT CHECK VALVE.

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.

IS THERE	YES
FLOW?

NO

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

REPLACE CHECK VALVE PER PARAGRAPH 6-10e. SEE NOTE 3.

IS THERE	NO	REPLACE POWER
		SUPPLY BOARD PER
+30VDC?
		PARAGRAPH 6-10b.

YES

DISCONNECT CAL GAS LINE

AT MANIFOLD OUTPUT PORT.

IS THERE	NO	REPLACE SOLENOID
FLOW?		PER PARAGRAPH 6-10c.

YES

REPLACE PRESSURE SWITCH

PER PARAGRAPH 6-10d.

IS THERE	YES
FLOW?

NO

REPLACE FAULTY CAL GAS FLOWMETER PER PARAGRAPH 6-10h.

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

35830008

Figure 7-16. SPS 4000 Troubleshooting Flowchart (Sheet 2 of 2)

7-22 Troubleshooting Rosemount Analytical Inc. A Division of Emerson Process Management