KROHNE Summit 8800 Vol 2 - Manual (Page 18)

18 www.krohne.com 08/2013 - MA SUMMIT 8800 Vol2 R02 en
SUMMIT 8800 GENERAL INFORMATION 02
Figure 1 Example ID Tree
This is referred to as the ID tree which, depending on its context, includes folders and several
parameters:
2 .4 .1 Type of data
The rest of this chapter will explain the folders available, the type of selection within the folder
and any other corresponding data.
Preset Data
Essential to the configuration of the flow computer. Typical data would be keypad values, op-
erating limits, equation selection, calibration data for Turbines and Densitometers and Orifice
plates.
This data would be present in a configuration report, and enables you to see what the flow com-
puter is configured to do.
Used for validation and will form the Data Checksum (visible on the System Information Page).
E.g., if a data checksum changes, the setup of the flow computer has changed and potentially
calculating different results to what is expected.
Typically configured and left alone, only updated after validation e.g. every 6 month / 1 year.
Active Data
These values cover inputs to the flow computer. E.g., from GC, pressure & temperature trans-
mitters, meters etc..
Also Values calculated in the flow computer. E.g., Flow rates, Z, Averages, Density etc..
Local Data
Data that an operator can change locally to perform maintenance tasks. E.g., turn individual
transmitters off without generating alarms. Setting Maintenance mode or Proving Mode.