Specifications

STARTUP and OPERATION
4.6.4 Measurement Log File Format
The log file contains data in a flat, ASCII, CSV file. The following are the fields of the
file, in order of occurrence. The log file size will be about 42 bytes per entry. 3 months
of data logs will require about 5,443,200 bytes
Name Description Example
Date/Time Month-day-year Hours:Minutes:Seconds 3-7-2001
10:24:00
O2 Percent O2 (percent) 10.5
O2 Limit O2 Limit exceeded alarm, 0=inactive,
1=active
0
O2 Status V=Valid, M=Maintenance Mode,
C=Calibration in process, I=Invalid
(calibration failed or sensor in failed state)
V
CO CO parts per million 12
CO Limit CO Limit exceeded alarm, 0=inactive,
1=active
0
CO Status V=Valid, M=Maintenance Mode,
C=Calibration in process, I=Invalid
(calibration failed or sensor in failed state)
V
Nox NOx parts per million 15
NOx Limit NOx Limit exceeded alarm, 0=inactive,
1=active
0
NOx Status V=Valid, M=Maintenance Mode,
C=Calibration in process, I=Invalid
(calibration failed or sensor in failed state)
V
Table 4.7 –Measurement Log File Format
4.6.5 Calibration Log File Format
The log file contains data in a flat, ASCII, CSV file. The following are the fields of the
file, in order of occurrence. The log file size will be about 350 bytes per entry. 3 months
of data logs will require about 32000 bytes (based on Calibration performed every 24
hours).
Name Description Example
Date/Time Calibration
start
Month-day-year Hours:Minutes:Seconds
3-7-2001
10:24:57
Gas 1 Time Time that Gas 1 started, Hours:Minutes:Seconds 10:25:30
Gas 2 Time Time That Gas 2 started, Hours:Minutes:Seconds 10:27:30
Gas 3 Time Time that Gas 3 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 Expected Zero Expected percent O2 for Zero phase of calibration 0.0
O2 Measured Zero Measured percent O2 for Zero phase of calibration 0.0
O2 Zero Drift Percent drift of O2 zero calibration 0.0
O2 R1 Expected Mid
Span
Expected percent O2 for Range 1 Mid span phase of
calibration
10.0
O2 R1 Measured Mid Measured percent O2 for Range 1 Mid span phase of
10.1
Rosemount Analytical µCEM Continuous Analyzer Transmitter 4-8