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Recording
This section explains the recording process, including pre-recording checks
and general steps for recording.
Recording steps
1. Checks before recording
Check the power supply, sensor readiness, and all settings.
2. Adjust input range. Record calibration signal as required.
Adjust the input range setting so that no overload occurs. To ensure that
the recorded data correspond to correct measurement values, record a
calibration signal before recording. When there has been no change in
sensors and recording parameters, this step may be omitted from the second
time onwards. If the sensitivity setting of the DA-21 can be considered to
provide suffi cient accuracy, recording a calibration signal is not necessary.
3. Recording
Use the [REC] key to perform the recording procedure, and repeat as
necessary. If any of the items that are to be checked before recording has
changed (connection of external equipment, input settings, etc.), return
to step 1.
After data recording has started, use the voice memo/marker function
and trigger processing as necessary.
1. Checks before recording
Before starting to record, check that all sensors are connected correctly and
that all settings are made properly. Items to be checked are listed below.
1. Power supply
Are inserted batteries in good condition? Are spare batteries avail-
able? (See pages 23, 57.) Is an AC adapter or other suitable external
power source available?
Are wake-up-on-power mode settings appropriate? (See page 60.)
Summary of Contents for DA-21
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