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Instruction Manual
IB-106-340 Rev. 3.0
December 2003
8-22 Troubleshooting Rosemount Analytical Inc. A Division of Emerson Process Management
Oxymitter 4000
Table 8-3. SPS 4000 Fault Finding
Symptom Check Fault Remedy
No calibration
gas flow
Wiring Improper wire connections,
loose connections, or
damaged wiring
Properly connect wiring or secure
loose wiring connections; replace
damaged wiring if necessary.
Logic I/O Oxymitter 4000 logic I/O
not set for calibration
handshaking with SPS
4000
Set logic I/O to mode 8 via
HART/AMS.
Calibration gas lines be-
tween cylinders and mani-
fold
Clogged calibration gas
line
Replace clogged calibration gas line.
Calibration gas flowmeter
knob
Flowmeter knob not turned
counterclockwise to allow
flow
Turn calibration gas flowmeter knob
counterclockwise to allow calibration
gas to flow.
Calibration gas line be-
tween manifold and cali-
bration gas flowmeter
Clogged calibration gas
line
Replace clogged calibration gas line.
Fuse on power supply
board
Blown fuse Replace fuse per paragraph 9-5a.
Interface board operation Interface board not send-
ing signals
Replace interface board per para-
graph 9-5b.
Check valve Clogged check valve Replace check valve per paragraph
9-5e.
Calibration gas line be-
tween calibration gas
flowmeter and check valve
Clogged calibration gas
line
Replace calibration gas line.
Calibration gas flowmeter Clogged flowmeter Replace flowmeter per paragraph
9-5h.
Power supply output Power supply failure Replace power supply board per
paragraph 9-5b.
Solenoid Solenoid failure Replace solenoid per paragraph
9-5c.
Pressure switch Pressure switch failure Replace pressure switch per para-
graph 9-5d.