2 Introduction
Manual GC 9300 EN14 July, 24th 2018
17
2.3 Data storage
There are
two
archives available for storage of analysis results - a
non-custody-
transfer
measurement archive and a
custody transfer
archive according to the
DSfG standard. The structure and memory capacity of the two archives are as fol-
lows:
Measurement archive
Event log book
1,000 entries
Parameter log book
1,000 entries
Individual analysis archive
351,360 entries
Hourly averages archive
17,568 entries
Daily averages archive
186 entries
Monthly averages archive
120 entries
Calibration results archive
14,640 entries
Date, time
• • • • • • •
Event (text)
•
Parameter
– old value
•
Parameter
– new value
•
Number of analyses per entry
• • • •
Number of valid analyses
• • • •
Stream, gas type
• • • •
Calorific value
• • • • •
Wobbe index
• • • • •
Standard density
• • • • •
Density ratio
• • • • •
Calorific value
• • • • •
Real gas factor
• • • • •
Methane number
• • • • •
Unnormalized total
• • • • •
Molar content of individual components (20)
• • • • •
User values (20)
• • • •
Peak area (20)
•
Retention times (20)
•
Retention times with the basic calibration
•
Response factors (20)
•
Response factors with the basic calibration (20)
•
Peak start time (20)
•
Peak end time (20)
•
Total area
•