GHM DeltaOHM HD2010UC, Operating Manual

Page: 102 / 134

HD2010UC
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V4.2
A2. MEMORY CAPACITY DURING THE LOGGING FUNCTION
With the supplied 4 MB memory you can store up to 500 recordings.
Through the “Advanced Data Logger” option, the HD2010UC can automatically store data accord-
ing to two different modes: continuous and automatic recording.
The sound level meter storage capacity when in Continuous Recording mode is equal to 23
hours with the supplied memory of 4 MB.
The table below gives the sound level meter storage capacity in Auto-Store mode, recording
automatically, at the end of each period equal to the set integration time, the SLM screen parame-
ters. The storage capacity is expressed as the time necessary to get the memory full.
Integration Interval Capacity
5s > 7 days
1m > 85 days
5m > 1 year
If the “Advanced Data Logger” is installed, the storage of
Reports and Events is made by units (rec-
ord) which are recorded corresponding to each interval (Menu >> Instrument >> Measurements >>
Report Time ) or for each event. Each unit is made of one Header followed by the parameters ena-
bled in the Menu >> Data Logger >> Report and >> Event. The following table explains the
memory occupancy (in byte) for each block composing one unit (record).
Report or Event
Occupancy
[bytes]
HEADER 7
PARAMETERS 10
STATISTIC 481
From the table it’s possible, for example, to calculate the memory occupancy for reports recording,
every 10 minutes (Menu >> Instrument >> Measurements >> Report time >> 10 min), including
the 5 PARAMETERS (Menu >> Data Logger >> Report >> Parameters >> ON) and
STATISTICAL ANALYSIS (Menu >> Data Logger >> Report >> Statistics >> ON:
6*(7+10+481) = 2988 byte/hour >> maximum duration = 4 MB/2988 ~ 58 days
An additional 4MB expansion memory is available as an option doubling recording capacity.