User's Manual

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If you are out of range of the cradle or the host PC when reading out the scanned

data, the scanner will keep the data in its memory buffer until the buffer is full; only

when the scanner is within the specified range of the cradle or the host PC, can you

make the scanner read out the data that is kept in the memory buffer by scanning

the Read Buffer barcode.

When the buffer is disabled and the scanner is out of range, the scanner will

respond with one long beep (low tone) and its LED indicator will become solid red

and go off quickly. You are advised to get back to range.

LED / Beeper Indication for Scanner

LED Indication for Scanner

The LED lights on the MS840 scanner turn on to indicate the status of the battery, a

successful read of a barcode, or the status of the wireless connection.

MS840 Lights: The status LED turns green, blue, or red to indicate the status of the

battery and scanning.

LED Light State What it means

Red LED flashes per 5 seconds Low battery power

Red LED on

1. Barcode reading when the trigger is pressed

2. Battery charging when the scanner is set on the

cradle

Green LED flashes Successful barcode reading

Blue LED fast blinks and then

turns off

Successful pairing/connection/reconnection (SPP mode)

Blue LED slow blinks Disconnect (out of range)

Green LED blinks Entering barcode setting mode

Green LED on

1. Exiting barcode setting mode

2. Battery charging completion

Green and blue LEDs blink Pin code setting (waiting to enter a pin code)

Beeper Indication for Scanner

The MS840 uses beeps to give you audio feedback when it performs some

functions. For example, you hear a beep each time you scan a valid barcode.

Beep Sequence What it means

One short beep with a Hi tone 1. Successful barcode reading

2. Pin code setting (waiting to enter a pin code)

One beep with a Hi tone Successful pairing/connection/reconnection (SPP mode)

3 Hi-Low alarms Disconnect (out of range)

One long beep with a Hi tone Entering barcode setting mode

One short beep with a Hi-Low tone

Exiting barcode setting mode

2 short beeps with a Hi tone Page calling