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Mini-AT User Guide
Audit Trail
The Mini-AT records operational information on a user-selectable interval.
At the beginning of each INTER-
VAL (item 202), the instrument records either four or ten items into memory. The default settings are:
Selectable Report Items
1. Item Code 258: 225 Incremental Corrected Volume
2. Item Code 259: 226 Incremental Uncorrected Volume
3. Item Code 260: 206 Average Pressure
4. Item Code 261: 207 Average Temperature
Optional Report Items
1. Item Code 229: 048 Battery Voltage
2. Item Code 230: 000 Corrected Volume
3. Item Code 231: 002 Uncorrected Volume
4. Item Code 232: 008 PCor Gas Pressure
5. Item Code 233: 026 Gas Temperature
6. Item Code 234: 059 Battery Wake Cycles
The Mini-AT will store 140 days of hourly information for these ten items. After 140 days, the earliest
information will begin to be overwritten by new information. The Audit Trail can be downloaded using the
Mini-AT Link software (or MasterLink32).
The Audit trail items can be changed using Mini-AT Link software and changing Item Codes 258-261 and
229-234. Any Mini-AT item can be selected for the Audit Trail. Assigning”255” to items 229-234 will
configure the instrument RAM memory to the four item configuration.
Table 8
Number of Days Available for Audit Trail
Interval
Selected
(Item 202) 4 Item 10 Item
15 Minutes 65 Days 35 Days
30 Minutes 130 Days 70 Days
60 Minutes 260 Days 140 Days
24 Hours 6240 Days 3360 Days
Number of Days Available
per download type
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