EC9830 CO ANALYZER OPERATION MANUAL
2-24 98307600 Rev. C-1
The TEST MENU includes a series of submenus containing information and control
settings for testing and verifying instrument functions. The operator can make
changes to settings; however, when the instrument is returned to normal
operation, the instrument’s automatic control function resumes. Changes made
from this menu are for diagnostic and test purposes only.
MEASUREMENT GAIN
Entries are microprocessor controlled settings of 1, 2, 4, 8, 16, 32, 64, and
128.
PRES/TEMP/FLOW COMP
Set to either ON or OFF. OFF is used when running diagnostics to see fluctuations
in readings. ON is used to compensate for environmental fluctuations that might
affect readings.
DIAGNOSTIC MODE
Allows the operator to choose OPERATE, OPTIC, ELECT, or PREAMP. During
measurement, set to OPERATE. During diagnostic testing, set to the system to be
diagnosed.
CONTROL LOOP
Allows the operator to choose ENABLED or DISABLED. When ENABLED is selected,
the microprocessor maintains control of the digital pots; when DISABLED is
selected, the microprocessor does not control the digital pots and the user can
manually adjust the digital pots. When CONTROL LOOP is ENABLED, the
microprocessor will take control of the pots at the point at which the pots were
last set. CONTROL LOOPS will be set to ENABLED when the primary screen is
displayed.
TEST MEASURE
Software-controlled pot that is used by technicians when troubleshooting, or
verifying correct instrument performance. This option only appears when the
diagnostic mode is set to OPTIC, ELECT or PREAMP.
CO
Gas concentration reading during diagnostics. This option only appears when the
diagnostic mode is set to OPTIC, ELECT or PREAMP.
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