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2 Instrument description
2.8 Data storage
Recording
capacity
Storage rate
Stored value
Recording
format
Recording
duration
H
Optimization
of recording
duration
22
- internal memory: approx. 350,000 measurements
(with option: "Memory expansion to 2MB": approx. 850,000
measurements)
- diskette: approx. 650,000 measurements
The recording capacity is reduced when many event messages are also
stored.
Different storage rates, ranging from 1sec to 32767sec, can be configured for
normal, event and timed operation under "configuration".
The storage rate determines the time intervals at which the measurements are
stored.
Under this parameter, the value to be stored (average, instantaneous, mini-
mum, maximum or peak value) is configured separately for normal, event and
timed operation.
The data are recorded encoded in a proprietary format.
The recording duration depends on various factors:
- number of analog channels and event traces being recorded
- storage rate
- number of events in the event list
The setup program calculates the recording duration for the cur-
rent configuration.
The recording duration can be optimized by process-oriented selection of the
storage rate.
In normal operation (no fault, no alarm, ...), a storage interval as long as possi-
ble (e.g. 60sec, 180sec, ...) should be selected, depending on the specific ap-
plication.
In the event of an alarm or a fault, the storage rate can be shortened via event
operation, which ensures that the measurement data are recorded with a high
time resolution.
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