7 Store Operation
This device can save measurement data (calculated values such as sound levels and equivalent continuous sound levels, measurement conditions such as frequency weighting and time weighting) to the internal memory or SD card.
This section describes saving to and loading from the internal memory.
There are three store modes: Manual, Auto, and Timer Auto.
Important
- Use SD cards that are genuine and provided by RION. The performance of other cards is not guaranteed (“SD card”).
- Do not turn off the power or remove the SD card while in the middle of storing. Doing so may corrupt the data.
- Saving to the internal memory is not possible when an SD card is inserted in the card slot.
Note
- Prior to measurement, first format the SD card for storing data with this device.
Precautions when using the environmental measurement data management software AS-60
- When processing the measurement data with AS-60, measure with the device set to store in Auto and Timer Auto mode because AS-60 cannot read data stored in Manual mode.
- When Lp store is performed with the device set to an Lp store interval of 200 ms and 1 s, the median value Leq, maximum value Lmax, and minimum value Lmin of the sound level within the time interval is calculated with the AS-60 based on the Lp stored with the interval of 200 ms or 1 s. To obtain accurate Leq, Lmax, and Lmin values, store Lp at a store interval of 100 ms. This setting stores Lp, which is stored at 100 ms intervals for sound levels with a sampling interval of 20.8 µs (sampling frequency of 48 kHz), and Leq, Lmax, and Lmin, which are calculated at intervals of 100 ms based on the sound level.
About store mode
| Store mode | Description |
|---|---|
| Manual | All calculated values except sound level Lp are considered as a single data set, and the measurer manually saves each data. When the person taking measurements performs the store operation after measuring, the calculated value that was measured and measurement conditions are saved together with the measurement start time. If the SD card is not installed, data is automatically saved to the internal memory of the main unit. If the SD card is installed, data is automatically saved to the SD card. |
| Auto |
The device continuously records the sound level (Lp) of the set Lp store interval and the result calculated during the set Leq calculation interval. This mode can be used by installing an SD card. When one of the following conditions occurs, the store is stopped and data is saved.
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| Timer Auto |
You can set the start time and stop time and perform auto store. This mode can be used by installing an SD card. By setting the measurement cycle, you can limit Lp store and Leq calculation to be performed only during the period when store is required. When one of the following conditions occurs, the store is stopped and data is saved.
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