CHAPTER 2, INSTALLATION AND OPERATION
98307600 Rev. C-1 2-23
CALIBRATION
MANUAL initiates operator-controlled calibration.
CAL. MODE
A choice of MEASURE (normal mode), CYCLE (zero/span), SPAN (span valve), or
ZERO (zero valve). The choice is based on the valve the operator wants to open.
Selecting CYCLE starts an AZS cycle, which is discussed in Chapter 3. The actual
valves actuated will depend upon the selection of CALIBRATION: INTERNAL or
EXTERNAL.
CALIBRATION
The choice of INTERNAL or EXTERNAL valves that will operate during a zero/span
check. (The EZS valve option must be installed to use EXTERNAL.)
BACKGROUND
A choice of START, DISABLED or ENABLED. If START is selected, then when
<Enter> is pressed the instrument begins an auto-zero (background) cycle. If
DISABLED is selected, then the instrument will not run the normal auto-zero
(background) cycle. If ENABLED is selected, then the instrument will run the
normal auto-zero (background) cycle.
BACK. INTERVAL
Set time in HOURS (2, 4, 6, 8, 12, 24). A microprocessor-controlled
field that indicates when an autozero cycle will begin. The results of the
background are stored in the EVENT LOG.
CO CAL PRESSURE
This is the measured ambient pressure during the last CO calibration.
Note
The background cycle must not be disabled for U.S.
EPA designated use.
2.5.6 Test Menu
TEST MENU
OUTPUT TEST MENU
DIAGNOSTIC MENU
MEASUREMENT GAIN : 128
PRES/TEMP/FLOW COMP : ON
DIAGNOSTIC MODE : OPERATE
CONTROL LOOP : ENABLED
TEST MEASURE : 0
CO : 0.00000 PPM
Figure 2-13. Test Menu
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