Teledyne 100AH instruction manual 10-10, Vacuum Pressure

Teledyne API Model 100AH SO2 Analyzer Instruction Manual, 02417, Rev. D

Table 10-2: Front Panel Warning Messages (Continued)

Message	Description
VACUUM PRESSURE	The vacuum pressure is below 1 in-Hg or above 10 in-Hg.
WARNING
BOX TEMP WARNING	Box temp. out of spec. Instrument fan failure, enclosure temperature
	failure. Operation of the M100AH in a too warm or cold
	environment will cause degradation of data quality and shorten the
	life of the instrument.
RCELL TEMP	Reaction cell temp. out of spec. The warning message is most often
WARNING	present during initial warm-up or poor electrical contact.
PMT TEMP WARNING	PMT temp. out of spec. The PMT temp has its own control circuit
	on the preamp (02107) board. Warnings will occur during initial
	warm up period. The warning can occur if the 7 pin connector to the
	interior of the sensor is not plugged in. The power from the PSM
	should be checked for proper voltage (+15 VDC ± 0.5) on the TEC
	driver circuit mounted on the fan duct. Test point 1 and test point 4
	(white) should measure 15 VDC and LED should light brightly.
CANNOT DYN ZERO	Dynamic zero cal. out of spec. The reading of the PMT was too high
	for the ZERO button to appear. Make sure the instrument is
	receiving zero gas. Check for dirty reaction cell. Do the factory
	calibration procedure located in Section 10.1.6.
CANNOT DYN SPAN	Dynamic span cal. out of spec. The reading of the PMT was too
	high or low for the SPAN button to appear. Make sure the
	instrument is receiving correct concentration span gas. Make sure
	the expected span concentration is entered. Check for dirty reaction
	cell. Do the factory calibration procedure located in Section 10.1.6.
V/F NOT INSTALLED	V/F (00514) board has failed. The V/F board did not respond to
	commands from the CPU. This probably means:
	1. board not seated in socket
	2. defective board
	3. defective back plane connector
DCPS WARNING	DC power supply output is put of specification. Test measurement
	display is below 2300 mV or above 2700 mV. Refer Section 10.3.4.

10-10