Instruction Manual
748467-A
January 2002
Rosemount Analytical Inc. A Division of Emerson Process Management Operation 3-19
Model MicroCEM
e. Calibration Log File Format
The log file contains data in a flat, AS-
CII, CSV file. The following are the
fields of the file, in order of occurrence.
The log file size will be about 178 bytes
per entry. 3 months of data logs will
require about 16000 bytes (based on
Calibration performed every 24 hours).
Name
Description
Example
Date/Time
Month-day-year Hours:Minutes:Seconds
3-7-2001 10:24:57
Zero Time
Time that Zero span started, Hours:Minutes:Seconds
10:25:30
Mid Time
Time That Mid span started, Hours:Minutes:Seconds
10:27:30
Span Time
Time that span started, Hours:Minutes:Seconds
10:28:30
Purge Time
Time that the final purge started,
Hours:Minutes:Seconds
10:30:30
Finish Time
Time that the final purge finishes
10:31:00
O2 Measured Zero
Measured percent O2 for Zero phase of calibration
0.0
O2 Expected Zero
Expected percent O2 for Zero phase of calibration
0.0
O2 Zero Drift
Percent drift of O2 zero calibration
0.0
O2 Measured Mid Span
Measured percent O2 for Mid span phase of calibration
10.1
O2 Expected Mid Span
Expected percent O2 for Mid span phase of calibration
10.0
O2 Mid Drift
Percent drift of O2 mid calibration.
-0.4
O2 Measured Span
Measured percent O2 for Span phase of calibration
20.2
O2 Expected Span
Expected percent O2 for Span phase of calibration
20.3
O2 Span Drift
Percent drift of O2 span calibration
0.4
CO Measured Zero
1
CO Expected Zero
0
CO Zero Drift
0.3
CO Measured Mid Span
23
CO Expected Mid Span
24
CO Mid Span Drift
-0.3
CO Measured Span
45
CO Expected Span
45
CO Span Drift
0
NOx Measured Zero
Measured ppm NOx for zero phase of calibration
15
NOx Expected Zero
Expected ppm NOx for zero phase of calibration
15
NOx Zero Drift
0
NOx Measured Mid Span
Measured ppm NOx for mid span phase of calibration
30
NOx Expected Mid Span
Measured ppm NOx for mid span phase of calibration
30
NOx Mid Span Drift
0
NOx Measured span
Measured ppm NOx for span phase of calibration
59
NOx Expected span
Measured ppm NOx for span phase of calibration
59
NOx Span Drift
0
Table 3-8. Calibration Log File Format