Hazardous Area
X-STREAM O
2
Transmitter
4-8
Instruction Manual
IM-106-910C, Rev. 1.0
November 2009
PROBE PARAMETER
DESCRIPTIONS
Among the parameters available through the Xi and 375 Communicator
menus are a number of "Probe Parameters". The probe parameters define
variables that configure a specific probe in the transmitter system. Probe
parameters are described in the following table.
TX
I/O
PARAMETER
NAME
UNITS
PARAMETER DESCRIPTION
Y
Y
O2
%
Current oxygen concentration value (O2%). The value should reflect the last good O2 value if it
is in the "Lock" state during calibration.
Y
Y
O2 Temp
degC
Current O2 sensor temperature.
Y
Y
CJC Temp
degC
Current cold junction temperature.
N
Y
Elec Temp
degC
Current electronic temperature measured at the I/O board.
Y
Y
O2 Cell
mV
Raw mV value for ZrO
2
sensor.
N
Y
TC Volt
mV
O2 T/C voltage.
Y
Y
Cell Imp
Ohm
Cell impedance/sensor resistance measured.
Y
Y
Htr Volt
Volt
Heater voltage.
Y
Y
CPU Volt
Volt
Transmitter CPU voltage.
Y
Y
O2 AO
mA
Analog output value represents the O2 concentration measurement.
N
Y
O2 AO%
%
O2 analog output percentage for O2 AO.
Y
Y
O2 Temp Max
degC
This is the highest O2 sensor temperature reached since last reset.
Y
Y
CJC Temp Max
degC
This is the highest temperature reached at the cold junction since last reset.
N
Y
Elec Temp Max
degC
This is the highest temperature reached at the IO board since last reset.
Y
Y
Htr Volt Max
degC
This is the highest heater voltage reached since last reset.
Y
Y
Htr Duty Cycle
--
O2 heater duty cycle. Value between 0 and 1.
Y
Y
PID SP
degC
PID temperature set point.
Y
Y
Htr Ramp Rate
degC/s
Heater ramp rate calculated in degree C per second.
N
Y
Flame Stat In
--
Flame status input state.
(OFF/ON)
N
Y
SPS/IMPS In
--
SPS/IMPS input state.
(OFF/ON)
N
Y
SPS/IMPS Out
--
SPS/IMPS output state.
(OFF/ON)
N
Y
Alm Relay 1 Out
--
Alarm Relay 1 output state.
(OFF/ON)
N
Y
Alm Relay 2 Out
--
Alarm Relay 2 output state.
(OFF/ON)
Y
Y
OP Mode
--
Device operating mode:
PO=Power up; WU=Warm Up (analog output is railed); NM=Normal operation;
CA=Calibrating (analog output can be tracking or locked at last good value based on
"AO Tracks" configuration); AL=Alarm detected (recoverable); SF=Alarm detected
(non-recoverable)
Y
Y
Tag
--
Device tag.
Y
Y
Device ID
--
Unique Device ID number. (HART)
Y
Y
PV is
--
Primary variable assignment. (HART)
Y
Y
SY is
--
Secondary variable assignment. (HART)
Y
Y
TY is
--
Third variable assignment. (HART)
Y
Y
QV is
--
Fourth variable assignment. (HART)
Y
Y
Cal Slope
mV/Dec Current calibration slope. This is the slope value that was calculated as a result of the last
successful calibration.
Y
Y
Cal Const
mV
Current calibration constant. This is the constant value that was calculated as a result of the last
successful calibration. It is valid between -4mV and +10mV.
Y
Y
Cal Imp
Ohm
Cell Impedance. This is the sensor resistance that was calculated as a result of the last
successful calibration.
N
Y
Prev Slope
mV/Dec Previous calibration slope. There are ten calibration results. 1 is the most recent and 10 is the
least recent calibration slope.
N
Y
Prev Const
mV
Previous calibration constant. There are ten calibration results. 1 is the most recent and 10 is
the least recent calibration constant.
Содержание Rosemount X-STREAM O2 Transmitter
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