Sps 4001B And Imps 4000, 1-4 Probes; Additional Imps 4000 Alarm Contacts; Identifying And Correcting Alarm Indications - Emerson Rosemount Oxymitter 4000 Reference Manual

Rosemount Oxymitter 4000

SPS 4001B and IMPS 4000, 1-4 probes

Additional IMPS 4000 Alarm Contacts

Identifying and Correcting Alarm Indications

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• One contact closure per probe from the control room to the SPS 4001B or IMPS
4000 for "calibration initiate".
• One contact output per probe from the SPS 4001B or IMPS 4000 to the control
room for "in calibration" notification.
• One contact output per probe from the SPS 4001B or IMPS 4000 to the control
room for "calibration failed" notification. (Includes output from pressure switch
indicating "cal gas bottles empty").
• One contact per IMPS 4000 for "low calibration gas flowing".
• One contact per IMPS 4000 for "high calibration gas flowing".
NOTE
The 4-20 mA signal can be configured to respond normally during any calibration, or can
be configured to hold the last O
is for the 4-20 mA signal to operate normally throughout calibration.
NOTE
Holding the last O value may be useful if several probes are being averaged for the
2
purpose of automatic control. Unless several probes are being averaged, always place
any control loops using the O
For a Hazardous Area Oxymitter 4000 with a membrane keypad, faults are indicated by
four diagnostic, or unit, alarm LEDs. A pattern of repeating blinks define the problem. A
condensed table of the errors and the corresponding blink codes can be found on the
inside right cover of the electronics housing. Table 8-1 also identifies the blink code and
fault status of each LED as well as the output of the 4-20 mA signal line and a fault
number that corresponds to the troubleshooting instructions provided in this section.
For a Hazardous Area Oxymitter 4000 with the optional LOI, alarm messages are
displayed on the LOI display window when the alarm status display is accessed via the
LOI menu. A listing of the alarm/fault messages and the related fault status descriptions
and fault numbers are shown in Table 8-2.
value upon the initiation of calibration. Factory default
2
signal into manual prior to calibrating.
2
July 2018
Troubleshooting