Endress+Hauser Levelflex FMP53 - Page 181

Levelflex FMP51, FMP52, FMP54 Description of device parameters (operating menu)
Endress+Hauser 181
Description
Definition of the logging interval t
log
for data logging. This defines the interval between the
individual data points in the data log, and thus the maximum loggable process time T
log
:
•
If 1 logging channel is used: T
log
= 1000 × t
log
•
If 2 logging channels are used: T
log
= 500 × t
log
•
If 3 logging channels are used: T
log
= 333 × t
log
•
If 4 logging channels are used: T
log
= 250 × t
log
Once this time elapses, the oldest data points in the data log are cyclically overwritten such that a
time of T
log
always remains in the memory (ring memory principle).
The log contents are cleared if the length of the logging interval is changed.
Input range
1.0 to 3 600.0 s
Factory setting
10.0 s
Additional information
Example
If 1 logging channel is used:
•
T
log
= 1000 × 1 s = 1 000 s @ 15 min
•
T
log
= 1000 × 10 s = 10 000 s @ 3 h
•
T
log
= 1000 × 80 s = 80 000 s @ 1 d
•
T
log
= 1000 × 3 600 s = 3 600 000 s @ 41 d
Clear logging data
Navigation
Diagnostics ® Data logging ® Clear logging data
Description
Use this function to clear the entire logging data.
Options
• Cancel
The data are not cleared. All the data are retained.
•
Clear data
The logging data are cleared. The logging process starts from scratch.
Factory setting
Cancel
Display channel 1-4
Navigation
Diagnostics ® Data logging ® Display channel 1
Diagnostics ® Data logging ® Display channel 2
Diagnostics ® Data logging ® Display channel 3
Diagnostics ® Data logging ® Display channel 4