Teledyne 6200E - Sulfides Analyzer - Manual (Page 173)

Model 6200E Instruction Manual Calibration Procedures
M6200E Rev: A1 173
7.9. Automatic Calibration/Checks (AutoCal)
The AutoCal system allows unattended, periodic operation of the zero/span valve options by using
the analyzer’s internal time of day clock. AutoCal operates by executing user-defined sequences to
initiate the various calibration modes of the analyzer and to open and close valves appropriately. It
is possible to program and run up to three separate sequences (SEQ1, SEQ2 and SEQ3). Each
sequence can operate in one of three modes or be disabled.
Table 7-2: AutoCal Modes
MODE ACTION
DISABLED Disables the sequence
ZERO Causes the sequence to perform a zero calibration or check
ZERO-SPAN Causes the sequence to perform a zero and span
concentration calibration or check
SPAN Causes the sequence to perform a span concentration
calibration or check
Each mode has seven parameters that control operational details of the sequence (Table 7-3).
Table 7-3: AutoCal Attribute Setup Parameters
Attribute Name ACTION
Timer Enabled Turns on the Sequence timer
Starting Date Sequence will operate on Starting Date
Starting Time Sequence will operate at Starting Time
Delta Days Number of days to skip between each sequence
Delta Time Incremental delay on each Delta Day that the sequence starts.
Duration Duration of the sequence in minutes
Calibrate Enable to do dynamic zero/span calibration, disable to do a cal
check only. This must be set to OFF for units used in US EPA
applications and with IZS option installed.
NOTE
The programmed STARTING_TIME must be a minimum of 5 minutes later than the real
time clock (See Section 6.6 for setting real time clock).