Teledyne Model 300EU SELECTING A TEST CHANNEL FUNCTION FOR OUTPUT A4, M300EU, Test Channel, Zero

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

6.7.3. SELECTING A TEST CHANNEL FUNCTION FOR OUTPUT A4

This section replaces Section 6.13.5.5 of the M300E/EM Operators Manual (P/N 04288)

The Test Functions available to be reported on analog output A4 are:

Table 6-6:	Test Channels Functions Available on the M300EU’s Analog Output
TEST CHANNEL		DESCRIPTION	ZERO	FULL SCALE
NONE		TEST CHANNEL IS TURNED OFF
		The raw output of the optical bench’s IR
CO MEAS		detector during the measure phase of the m/r	0 mV	5000 mV*
		cycle
CO REF		The raw output of the optical bench’s IR
		detector during the reference phase of the	0 mV	5000 mV*
		m/r cycle
SAMPLE PRESSURE		The pressure of gas in the optical bench’s	0 "Hg	40 "Hg-In-A
		sample chamber
SAMPLE FLOW		The gas flow rate through the optical bench’s	0 cm3/min	6000 cm3/min
		sample chamber
SAMPLE TEMP		The temperature of gas in the optical bench’s	0 C°	70 C°
		sample chamber
BENCH TEMP		The temperature of optical bench’s itself	0 C°	70 C°
WHEEL TEMP		The temperature of GFC wheel	0 C°	70 C°
		The temperature of the circulating air inside
OVEN TEMP		the convection oven section of the M300EU’s	0 C°	70 C°
		interior.
PHT DRIVE		The drive voltage being supplied to the	0 mV	5000 mV
		thermoelectric coolers of the IR photo-detector by
		the sync/demod Board.
TEMP4		SPARE

Once a function is selected, the instrument not only begins to output a signal on the analog output, but also adds TEST to the list of Test Functions viewable via the Front Panel Display.

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