Emerson Rosemount OCX 8800 Reference Manual page 129

Table 7-4: Transducer block parameter description
Parameter mnemonic
O2_CAL_POINT_LO
O2_CELL_IMPEDANCE
O2_CONSTANT
O2_FAILED_SLOPE
O2_HTR_DUTYCYCLE
O2_IMPEDANCE_CAL
O2_PERCENT_OF_RANGE
O2_PREVIOUS_CONSTANT
O2_PREVIOUS_IMPEDANCE
O2_PREVIOUS_SLOPE
O2_PRIMARY_VALUE
O2_PRIMARY_VALUE_RANGE
O2_PRIMARY_VLUE_TYPE
O2_SECONDARY_VALUE
O2_SENSOR_CAL_DATE
O2_SENSOR_CAL_LOC
O2_SENSOR_CAL_METHOD
O2_SENSOR_CAL_WHO
Reference Manual
(continued)
Valid range
0-40
-20.0 to 20.0
See FF-903, Section 4.1
Units
%
Ohms
mV
mV/Decade
Ohms
%
mV
Ohms
mV/Decade
Foundation Fieldbus
Description
The value of the low O test
2
gas.
The instantaneous impe-
dance value for the O cell.
2
The O calibration con-
2
stant.
This is the slope value cal-
culated from the last failed
O calculation.
2
O heater duty cycle.
2
The impedance value that
was calculated as a result of
the current successful O
2
calibration.
The percent of range of the
current O reading.
2
The O calibration constant
2
from the previous good cal-
ibration.
The impedance value from
the previous good calibra-
tion.
The O calibration slope
2
from the previous good cal-
ibration.
The value and status of the
O concentration reading.
2
The high and low range
limit values, the engineer-
ing units code, and the
number of digits to the
right of the decimal point
for the O reading.
2
See FF-903, Section 3.3.
The temperature of the O
2
cell.
See FF-903, Section 3.3.
See FF-903, Section 3.3.
See FF-903, Section 3.3 and
Section 4.3.
See FF-903, Section 3.3.
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