Hioki 3640-20, Instruction Manual

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NOTE 3640-20 LUX LOGGER are not able to set up it to 3910-20
COMMUNICATION BASE.
Use 3911-20, 3912-20 COMMUNICATION BASE to set 3640-
20.
Chapter 1
Product Overview
3640-20 LUX LOGGER with 9662 LUX SONSOR records
1 channel of data at illuminance.
Data is saved in nonvolatile memory when batteries are
weak or removed for replacement.