Teledyne 200AU Stsystemok YES, Sthighrange YES, Pmtsignal, Samplepres, Blocktemp, Dcpsvoltage

Teledyne API Model 200AU NOX Analyzer Instruction Manual, 02293, Rev. F

Table 9-4: Diagnostic Mode - Signal I/O (Continued)

No.

Signal

Control

Description

22	ST_SYSTEM_OK	YES	Status Bit - System OK
			Logic High = No instrument warnings present
			Logic Low = 1 or more alarms present
23	ST_HIGH_RANGE	YES	Status Bit - Autorange High Range
			Logic High = M200AU in high range of autorange
			mode
			Logic Low = M200AU in low range of autorange
			mode
24	PMT_SIGNAL	NO	Current PMT voltage. Same as PMT voltage in TEST
			menu. Bi-polar, typically in 0-5000 mV range. A
			constant value of 5000 mV indicates offscale.
25	SAMPLE_PRES	NO	Sample pressure in mV. Typical sea level value =
			4300 mV for 29.9" Hg-A.
26	RCELL_TEMP	NO	Reaction Cell temperature. Typically 3500 mV for
			50° C.
27	BOX_TEMP	NO	Box Temperature. Typically 1800 mV for 25° C
28	BLOCK_TEMP	NO	Block temperature.
29	PMT_TEMP	NO	PMT cold block temperature. Typically 3600 mV for
			10° C.
30	DCPS_VOLTAGE	NO	DC power supply composite voltage output.
			Typically 2500 mV.
31	RCELL_PRESS	NO	Reaction Cell Pressure in mV. Typically 1270 mV
			for 5" Hg-A at sea level. Is an absolute pressure so
			higher values means higher absolute pressures.
32	OZONE_FLOW	NO	Ozone flowmeter voltage. Typically 2000 mV at
			80 cc/min.
33	CONV_TEMP	NO	Molybdenum Converter temp. Typically 3150 mV at
			315° C
34	HVPS_VOLTAGE	NO	HVPS programming voltage. Output of HVPS is
			1000x value present. 700 mV = 700 VDC output.
35	DAC_CHAN_0	NO	Output of NOx channel in mV.
36	DAC_CHAN_1	NO	Output of NO channel in mV.

(table continued)

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