User's Manual

M400E Ozone Analyzer Operator’s Manual M400E Calibration Procedures
For each mode, there are seven parameters that control operational details of the SEQUENCE. They are:
Table 9-2: AutoCal Attribute Setup Parameters
ATTRIBUTE NAME ACTION
Timer Enabled Turns on the Sequence timer.
Starting Date Sequence will operate after Starting Date.
Starting Time Time of day sequence will run.
Delta Days Number of days to skip between each Seq. execution.
Delta Time Number of hours later each “Delta Days” Seq is to be run.
Duration Number of minutes the sequence operates.
Calibrate
Enable to do a calibration – Disable to do a cal check only MUST be set to
NO
for instruments with IZS Options installed and functioning.
The following example sets sequence #2 to do a zero-span calibration every other day starting at 1 Am on
September 4, 2001, lasting 15 minutes, without calibration. This will start ½ hour later each iteration.
Table 9-3: Example AutoCal Sequence
MODE AND ATTRIBUTE VALUE COMMENT
Sequence
2
Define Sequence #2
Mode
ZERO-HI
Select Zero and Span Mode
Timer Enable
ON
Enable the timer
Starting Date
Sept. 4, 2001
Start after Sept 4, 2001
Starting Time
01:00
First Span starts at 1:00AM
Delta Days
2
Do Sequence #2 every other day
Delta Time
00:30
Do Sequence #2 ½ hr later each day
Duration
15.0
Operate Span valve for 15 min
Calibrate
NO
Do not calibrate at end of Sequence
NOTES
The programmed STARTING_TIME must be a minimum of 5 minutes later than the real time clock for
setting real time clock (See Section 6.4.3).
Avoid setting two or more sequences at the same time of the day. Any new sequence that is initiated
whether from a timer, the COM ports or the contact closure inputs will override any sequence that is in
progress.
The CALIBRATE attribute must always be set to NO on analyzers with IZS Options installed and
functioning.
Calibrations should ONLY be performed using external sources of Zero Air and Span Gas whose
accuracy is traceable to EPA or NIST standards
04315 Rev. C1 163