GHM DeltaOHM HD2010UC Operating Manual Download Page 87

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HD2010UC

- 87 -

V4.2

with the sound level meter in STOP mode and the “Advanced Data Logger” option is installed, a
screen allowing activating the Auto-Store will appear first.

History Mode (Time Profile) - See also the description on page 17.

With the MODE key you can open the PROFILE screen (requires the “Advanced Data Log-

ger” option) in which the time profile of the A weighted sound pressure level with FAST time con-
stant is shown graphically. The sampling interval is equal to 1/8s.

You can start the measurements by pressing the START/STOP/RESET key.

If the sound level meter is set to the single integration mode (MENU >> Instrument >> Measure-
ment >> Integration Mode: SING), once the Tint time (defined in the SLM page), is over, HOLD
will be displayed: display update will stop. Meanwhile, the instrument goes on measuring: to con-
tinue display updating, just press the HOLD key. When the continuous recording is activated and
the Tint time goes over, the acquisition is stopped automatically.

If you press HOLD during the measuring phase, the display update will be temporarily inter-

rupted. When HOLD is pressed again, the updating will continue. Even if the display is not updated,
the instrument will go on measuring.

If you press PAUSE, the acquisition will be temporarily suspended. While in pause, press

START/STOP/RESET to clear the graph. Press PAUSE once more to start measuring again.

If you press CURSOR at any moment, a cursor will be activated. If you press CURSOR once

more, a second cursor will activate, while, if you press it for the third time, both cursors will be ac-
tivated in “tracking”. Use the LEFT and RIGHT arrows of the keypad to shift the selected cursors
into the desired position to indicate the measured level and the corresponding acquisition time.
Press CURSOR again to disable cursors.

PRINT at any time to print the on-screen data. To activate the continuous printing (Monitor),

press and hold down PRINT for at least 2 seconds. The flashing letter M, over the status indicator,
indicates that the Monitor function has been activated. The Monitor function remains active even
when jumping to other measuring views and can be disabled pressing PRINT again or
START/STOP/RESET to stop measurement.

TORAGE OF

EASUREMENTS WITH THE

“A

DVANCED

ATA

OGGER

”

PTION

The HD2010UC, sound level meter, when provided with the “Advanced Data Logger” option, of-
fers two different storage modes:
1.

The

Continuous Recording

(press REC and START keys simultaneously) implies the storage

of the SLM screen-page (2 samples a second) together with the time profile of the A weighted
sound pressure level with FAST constant time (8 samples a second). It’s also possible to store
the data of “Report and Events groups”, each consisting of 5 programmable parameters and full
statistical analysis. The data of the “Event group” are stored at the end of each event and the
data of “report group” are stored at programmable intervals from 1 sec to 1 hour.

The REC

symbol as status indicator shows when the sound level meter is recording. If you press STOP,
recording will be stopped and you will be asked to confirm the title. While recording, you can
press PAUSE to suspend recording.
When integration mode is multiple (MENU >> Instrument >> Measurement >> Integration
Mode: MULT), the integrated levels are cleared just before the beginning of each measurement
cycle. A special marker identifies the last acquired data per each cycle.

The

Auto-Store

mode can be activated either through the parameter MENU >> Recording >>

Auto-Store or by pressing REC and holding it down for at least 2 seconds with the sound level
meter in STOP mode. Then select the AUTO option when you are requested to choose the re-
cording option. Activating the Auto-Store recording mode together with the multiple integra-
tion mode (MENU >> Instrument >> Measurement >> Integration Mode: MULT) allows to