Teledyne Model 300EU manual Units, M300EU, 2 Test Functions Defined, Parameter, Display Title

M300EU OPERATING INSTRUCTIONS	M300EU
	Addendum to M300E/EM Manual P/N 04288

6.2.2. TEST FUNCTIONS

The information found in Section 6.2.1 of the M300E/EM Operators Manual (P/N 04288) is applicable to the M300EU with the following exception(s):

•The following table supersedes Table 6-2 of the M300E/EM Operators Manual (P/N 04288).

Table 6-2: Test Functions Defined

Parameter	Display Title	Units	Meaning
			The full-scale limit at which the output range of the analyzer’s Analog
RANGE			Outputs is currently set.
- -	RANGE	PPB, PPM	• THIS IS NOT the Physical Range of the instrument. See Section 6.3.2
RANGE1		UGM, MGM	for more information.
RANGE2			If DUAL or AUTO Range modes have been selected, two RANGE functions
			will appear, one for each range.
		PPB, PPM	Standard deviation of CO concentration readings. Data points are recorded
Stability	STABIL		every ten seconds using the last 25 data points. This function can be reset
		UGM, MGM	to show O2 or CO2 stability in instruments with those sensor options
			installed.
CO Measure	MEAS	MV	The demodulated, peak IR detector output during the measure portion of the
			CFG Wheel cycle.
CO Reference	REF	MV	The demodulated, peak IR detector output during the reference portion of
			the CFG wheel cycle.
			The result of CO MEAS divided by CO REF based on readings taken during
Measurement /	MR Ratio	-	the normal sample measurement portion of the A-REFcycle.
Reference Ratio			This ratio is the primary value used to compute CO concentration. The
			value displayed is not linearized.
			The result of CO MEAS divided by CO REF based on readings
Auto-Reference	AZERO RATIO	-	taken during the zero-reference portion of the A-REF cycle.
			This ratio is the used to compute a reference correction factor
Ratio
			for computing the CO concentration. The value displayed is
			not linearized.
Sample Pressure	PRES	In-Hg-A	The absolute pressure of the Sample gas as measured by a pressure
			sensor located inside the sample chamber.
Sample Flow	SAMPLE FL	cm3/min	Sample mass flow rate as measured by the flow rate sensor in the sample
			gas stream,
Sample	SAMP TEMP	°C	The temperature of the gas inside the sample chamber.
Temperature
Bench	BENCH TEMP	°C	Optical bench temperature.
Temperature
Wheel	WHEEL TEMP	°C	GFC wheel temperature.
Temperature
Box Temperature	BOX TEMP	°C	The temperature inside the analyzer chassis.
Oven	OVEN TEMP2	°C	The current temperature of the circulating air inside the M300EU’s
Temperature			convection oven area.
Photo-detector			The drive voltage being supplied to the thermoelectric coolers of the IR
Temp. Control	PHT DRIVE	mV
			photo-detector by the sync/demod Board.
Voltage
			The sensitivity of the instrument as calculated during the last calibration
Slope	SLOPE	-	activity. The SLOPE parameter is used to set the span calibration point of
			the analyzer.
			The overall offset of the instrument as calculated during the last calibration
Offset	OFFSET	-	activity. The OFFSET parameter is used to set the zero point of the
			analyzer response.
Test Channel	TEST	mV	The raw voltage being output on the analyzer’s A4 analog output. Only
Output			appears when the test channel is assigned a function.
Current Time	TIME	-	The current time. This is used to create a time stamp on iDAS readings, and
			by the AUTOCAL feature to trigger calibration events.

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