
Instruction Manual
Hazardous Area Oxymitter 4000
For systems with one or two Hazardous Area Oxymitter 4000 units per combustion process, an optional remote mounted SPS 4000 Single Probe Autocalibration Sequencer can be used with each Hazard- ous Area Oxymitter 4000 to provide auto- matic calibration gas sequencing. The sequencer performs autocalibrations based on the CALIBRATION RECOMMENDED signal from the Hazardous Area Oxymitter 4000, a timed interval set up in HART, or whenever a calibration request is initiated.
d.System Features
1.The CALIBRATION RECOMMENDED feature detects when the sensing cell is likely out of limits. This may eliminate the need to calibrate on a “time since last cal” basis.
2.The cell output voltage and sensitivity increase as the oxygen concentration decreases.
The HART option is not protected by energy limiting barriers. It must not be interfaced from within the hazardous area. The
3.Membrane keypad Figure
(a)HART Model 275/375 Communi- cator.
(b)Asset Management Solutions (AMS) software for the PC.
4.An optional Local Operator Interface Figure
HEATER T/C
DIAGNOSTIC HEATER
ALARMS 02 CELL
CALIBRATION
CALIBRATION RECOMMENDED
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| CAL |
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MEMBRANE
KEYPAD
37260003
Figure 1-3. Membrane Keypad
37260004
Figure 1-4. Local Operator Interface (LOI)
Rosemount Analytical Inc. A Division of Emerson Process Management |