Emerson SPS 4001B instruction manual Relay Failure

SPS 4001B

Instruction Manual

IM-106-340AC-1, Rev. 1.0 April 2005

1.Verify your calibration setup per "Gas Connections" in Section 2, Installation; Section 3, Operation; and "Flow Meter Adjustments" in Section 4, Maintenance and Service.

2.Perform another calibration and monitor the process. If the calibration fails before both calibration gases finish sequencing, a gas flow problem exists. Refer to Table 5-1or Figure 5-1to troubleshoot the SPS 4001B.

If the calibration setup is correct and the Oxymitter 4000 indicates an invalid slope fault (fault 12) before the gases are purged and a last calibration failed fault (fault 14) after the gases are purged, replace the Oxymitter 4000 cell per the Oxymitter 4000 Oxygen Transmitter Instruction Manual.

Relay Failure

If a semi-automatic or manual calibration is being performed but no 5 - 30 VDC relay output contact (IN CAL or CAL FAIL) is being received by the control room, the circuit board relays are malfunctioning. Replace the circuit board per "Circuit Board Replacement" in Section 4, Maintenance and Service.

NOTE

If the unit is performing frequent auto-calibrations, investigate at the Oxymitter 4000 site or using HART/AMS. This condition may indicate an aging cell in the Oxymitter 4000.

5-2