Microtronics myDatalogEASYplus, Руководство пользователя

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Chapter 9 User interfaces
Note:
Example to explain the burst interval in conjunction with the ext. warmup time (ext. warmup time > measurement
cycle):
Basic setting Record interval 5min.
Burst interval 75 sec.
Measurement cycle 15 sec.
Output channels Ext warmup time 30 sec.
Measurement channels -
>Config. Decay med
Time 60 sec.
Output on the device Sensor supply
Explanation: As the ext. warmup time is greater than the measurement cycle in this example, the sensor supply is
activated right at the start of the burst interval and is only deactivated again when the recording starts. The first
measurement is completed 15 sec. (measurement cycle) after the burst interval has started. At this time, the
sensor supply had not yet been active for the duration of the ext. warmup time. This means that the measurement
value of the connected sensor is probably not stable yet and the measurement is thus invalid. In this example, only
the second measurement after the start of the burst interval is valid. To exclude the invalid measurements during
the formation of the measurement value, the selected decay period must be appropriately smaller than the burst
interval. The burst interval has to be increased from 60 sec. to 75 sec. to receive four valid measurements in
exactly the same way as in the previous example (ext warmup time < measurement cycle).
Formation of the measurement value: The sensor supply is activated at the start of the burst interval. The first
measurement is completed 15 sec. later. Five measurements are thus generated. The first measurement is invalid
(ext. warmup time has not expired yet). As the decay period only lasts 60 sec., only the second to fifth
measurement are used to determine the median and are recorded as the measurement value. The first invalid
measurement is thus ignored.
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