Emerson Process Management IM-106-910Xi Parameter Name Units Parameter Description

Instruction Manual

IM-106-910Xi, Original Issue November 2010

Xi Advanced Electronics

		PARAMETER
TX	I/O	NAME	UNITS	PARAMETER DESCRIPTION
N	Y	Prev Cal Imp	Ohm	Previous Cell Impedance. This is the sensor resistance that was calculated as a result of
				previous successful calibration. There are ten calibration results. Index 1 is the most recent and
				Index 10 is the least recent sensor resistance measured.
N	Y	Failed Slope	mV/Dec	Failed calibration slope.
N	Y	Failed Const	mV	Failed calibration constant.
Y	Y	Cal Result	mV	Calibration result.
N	Y	Delta Imp	--	Delta impedance since last calibration.
N	Y	Cal Step	--	This represents the step of the calibration cycle is in.
N	Y	Time Remain	sec	Time remaining in the present calibration cycle state.
Y	Y	O2 Slope	mV/Dec	O2 slope. This is the slope value that will be used to calculate O2.
Y	Y	O2 Const	mV	O2 constant. This is the constant value that will be used to calculate O2.
N	Y	T90 Filter	sec	Analog output T90 time. It represents the time to take a step change in oxygen to reach 90% of
				the final value at the filter output.
N	Y	O2 Cell Ref	%	O2 sensor reference gas percentage. It allows using a sensor reference gas other than air.
N	Y	O2 Temp SP	degC	O2 sensor temperature set point. It allows measurement of oxygen with an elevated sensor
				temperature. (0=736 degC set point; 1=834 degC set point)
N	Y	Features	--	Advanced software features.
				(0=Stoichiometer; 1=Programmable Reference; 2=Elevated Temperature)
Y	Y	O2 URV	%	Primary variable (O2%) upper range value.
Y	Y	O2 LRV	%	Primary variable (O2%) lower range value.
N	Y	O2 AO Range	--	Analog output polarity. (0=4-20 mA; 1=20-4 mA)
Y	Y	O2 Alarm Level	--	O2 alarm level. (0=3.5 mA; 1=21.1 mA)
N	Y	Alarm Relay 1	--	Alarm Relay 1 mode.
				(no alarm; unit alarm; low O2 alarm; low O2/unit alarm;
				Cal recommended; Cal recommended/unit alarm; low O2/Cal recommended;
				low O2/unit alarm/Cal recommended)
N	Y	Alarm Relay 2	--	Alarm Relay 2 mode. (no alarm; unit alarm; low O2 alarm; low O2/unit alarm
				Cal recommended; Cal recommended/unit alarm; low O2/Cal recommended;
				low O2/unit alarm/Cal recommended; Heater relay)
N	Y	Low O2 Alm	%	Low O2 alarm threshold.
N	Y	Hi Temp Alm	%	High temperature alarm threshold.
N	Y	AO Tracks	--	Analog output track O2 sensor measurement during a calibration. (No, Yes).
N	Y	Auto Cal	--	Enable/disable automatic calibration.
				No = Set to Manual calibration mode.
				Yes = Set to Automatic calibration mode.
N	Y	Start On CalRec	--	Start automatic calibration on Cal Recommended state. (No, Yes)
Y	Y	Cal Gas 1	%	Test Gas 1 value. This is the actual value of the gas being applied during the Test Gas 1 phase
				of a calibration.
Y	Y	Cal Gas 2	%	Test Gas 2 value. This is the actual value of the gas being applied during the Test Gas 2 phase
				of a calibration.
Y	Y	Gas Time	sec	Test Gas application time. This is the length of time test gases are applied to the O2 probe
				during low or high Test Gas phase of a calibration.
Y	Y	Purge Time	sec	Test Gas purge time. This is the length of time before the output will be returned to the process
				reading after a calibration.
N	Y	Cal Interval	hr	Automatic calibration interval. The number 9999 disables the automatic timed calibration.
N	Y	Next Cal Time	hr	Time remaining until the next automatic periodic calibration. The number 9999 disables the next
				automatic timed calibration.
Y	Y	T EE Val	--	Transmitter board nonvolatile memory diagnostic.
N	Y	IO EE Val	--	I/O board nonvolatile memory diagnostic.
Y	Y	Version	--	Software version number for the Transmitter.
N	Y	Version	--	Software version number for the I/O board.
Y	Y	T Restart Cntr	--	Software restarts count for the Transmitter.
N	Y	IO Restart Cntr	--	Software restarts count for the I/O board.
Y	Y	Alarms	--	Current Alarms (See section 5, Troubleshooting, ”Alarm Indications”.)

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