Teledyne 9110T - Nitrogen Oxides Analyzer - Manual (Page 215)

Model 9110TH NOx Analyzer Calibration Procedures
Teledyne Analytical Instruments 215
The following example sets sequence #2 to do a zero-span calibration every other day starting at 1:00
AM on September 4, 2011, lasting 15 minutes, without calibration. This will start ½ hour later each
iteration.
Table 9-4: Example AutoCal Sequence
MODE AND
ATTRIBUTE
VALUE COMMENT
SEQUENCE 2 Define Sequence #2
MODE ZERO-SPAN
Select Zero and
Span Mode
TIMER ENABLE ON Enable the timer
STARTING DATE Sept. 4, 2011
Start after
Sept 4, 2011
STARTING TIME 1:00 AM
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 OFF
Calibrate at end of
Sequence
I
MPORTANT I MPACT ON R EADINGS OR D ATA
 The programmed STARTING_TIME must be a minimum of 5 minutes
later than the real time clock for setting real time clock (See Section
5.6).
 Avoid setting two or more sequences at the same time of the day.
 Any new sequence that is initiated whether from a timer, the COMM
ports or the contact closure inputs will override any sequence that is
in progress.
 The CALIBRATE attribute must always be set to OFF 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 standards.