KEYENCE BL-N90 Series - Manual (Page 48)

3-2 Selecting the Reading Mode
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Reading on the communication unit
When an "Auto-scan" mode (auto-reading/trigger switch reading) is set on the BL-N90, the
scanner operates in "Auto-scan/auto-reading mode" when it is set on the communication
unit.
• The sensor detection distance can be selected ( page 4-14).
Note
When performing reading with the BL-N90 set on the communication unit, it is
constantly being charged. You do not have to worry about the battery running out.
When using the dedicated stand, the BL-N90 cannot be recharged and the battery may
run out.