Etymotic ER•200DW8 Personal Noise Dosimeter with Data Logging - Manual (Page 19)

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Any combination of runs can be used up to the memory
capacity of the device.
Examples:
a. 24 QuickCheck runs
[24 * 2 blocks each = 48 total]
b. Nine 16-hour runs + One QuickCheck run
[9 * 5 blocks each + 2 = 47 total]
c. Two 3-day runs + Two 16-hour runs
[2 * 19 blocks each + 2 * 5 blocks each = 48 total]
d. One 5-day run + Three 16-hour runs + 1 QuickCheck run
[31 blocks + 3 * 5 blocks each + 2 = 48 total]
e. One 7-day run + One 16-hour run
[43 blocks + 5 blocks = 48 total]
When the memory is full the Status indicator (accessed
with one press of the power button) shows two red LEDs:
Clearing the Memory
When the ER-200DW8 memory is full and the dosimeter
is set not to overwrite the data, then data must be
removed from the device before additional data runs
can be obtained.
Calibration
The ER-200DW8 dosimeter is factory calibrated.
Advanced users can verify calibration using the
ER-200DW8 Utility Suite. See www.etymotic.com
for more information.