2 device description – JUMO 706510 LOGOSCREEN 500 cf Operating Manual User Manual

Page 26

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2 Device description

26

Recording
duration

The recording duration depends on various factors:

- number of analog channels and event traces being recorded

- storage cycle

- number of events in the event list.

Internal recording duration (without external CF card)

Recording duration with CF card

The calculation of the recording duration is made for the storage of
momentary, minimum, maximum or average values. If peak values are
recorded, then the times are shorter, since a maximum and minimum value is
recorded each time.
The recording capacity will be further reduced if a large number of event
messages are also stored.

Optimization of
recording
duration

The recording duration can be optimized by process-oriented selection of the
storage cycle.

In normal operation (no error, no alarm, ...) a storage cycle that is as long as
possible (e.g. 60sec, 180sec, …) should be selected, depending on the
particular application.

In the event of an alarm or error, the storage cycle can be shortened via event
operation, with the effect that the measurement data are recorded with a high
time resolution.

Number of
channels

Memory
size

Storage
cycle
1 min

Storage
cycle
30 sec

Storage
cycle
10 sec

Storage
cycle
1 sec

3

approx.
1MB

42.2 days

21.1 days

7 days

17 hours

6

approx.
1MB

29.5 days

14.8 days

4.9 days

12 hours

Number of
channels

Memory
size

Storage
cycle
1 min

Storage
cycle
30 sec

Storage
cycle
10 sec

Storage
cycle
1 sec

3

64 MB

8.8 years

4.4 years

1.5 years

1.8 months

3

128 MB

17.6 years

8.8 years

2.9 years

3.5 months

3

256 MB

35.3 years

17.6 years

5.9 years

7.1 months

6

64 MB

6.2 years

3.1 years

1.0 years

1.2 months

6

128 MB

12.3 years

6.2 years

2.1 years

2.5 months

6

256 MB

24.7 years

12.3 years

4.1 years

4.9 months

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