KEYENCE BL-N90 Series - Manual (Page 54)

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3-6 Sleep Mode
Set the BL-N90 to sleep mode in the following situations.
• When not using the BL-N90 for a long period of time
Since the BL-N90 and the communication unit are continuously communicating wirelessly,
battery power is depleted even when the scanner is not reading a barcode. Enabling
sleep mode interrupts the wireless communication to the communication unit, thereby
saving battery power.
For details on power consumption, see
page 2-12.
• When changing the BL-N90 pairing (when using multiple BL-N90 and communication
units)
When changing the BL-N90 pairing, set the BL-N90 that is currently being used to sleep
mode.
For details about changing the pairing, see
page 2-14.
z
Setting sleep mode
Press and hold "Trigger" for about 10 seconds.
After setting sleep mode, the following actions occur.
• The buzzer sounds once long beep.
• The blue LED on the communication unit lights up (wireless communication stopped).
z
Releasing sleep mode
To release the sleep mode, press "Trigger".
• Wait 10 to 30 seconds until wireless communication starts.
• Once wireless communication starts, the blue LED on the communication unit lights up.
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