Teledyne 6200T - Sulfides Analyzer User Manual
Page 202
Calibration Procedures
Model 6200T Total Sulfur Analyzer
Teledyne Analytical Instruments
202
Note
The CALIBRATE attribute must always be set to OFF for analyzers used in
US EPA controlled applications that have IZS option installed.
Calibration of instruments used in US EPA related applications should
only be performed using external sources of zero air and span gas with an
accuracy traceable to EPA or NIST standards and supplied through the
analyzer’s sample port (refer to Section 9.2).
The following example sets Sequence 2 to carry out a zero-span calibration every other
day starting at 01:00 on September 4, 2002, lasting 15 minutes. This sequence will start
0.5 hours later each day.
Table 9-4: Example Auto-Cal Sequence
MODE / 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, 2002
Start after Sept 4, 2002
STARTING TIME
01:00
First Span starts at 01:00
DELTA DAYS
2
Do Sequence #2 every other day
DELTA TIME
00:30
Do Sequence #2 0.5 h later each day
DURATION
15.0
Operate Span valve for 15 min
CALIBRATE
ON
The instrument will re-set the slope and offset
values for the SO
2
channel at the end of the AutoCal
sequence