DL210 Operation Manual V3.2
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10.
LED Display
10.1.
The display shows three types of information:
10.1.1.
Memory status:
UU
= memory is empty;
FU
= memory is
full (has all 50 users registered)
10.1.2.
Security level: S0 through S4 (See Section 3.1)
10.1.3.
IDs assigned (See Section 2.6)
11.
Troubleshooting
11.1.
Problem:
3 beeps and 3 flashes of the red LED show failure when
registering fingerprint or when attempting to unlock door
Possible Cause
Solution
The finger was not pressed on
window in time – the lock had
timed out.
Repeat the procedure, but put finger
on more quickly
The finger was not positioned
as previously registered
Repeat the procedure and vary the
positioning of the finger
The finger is dirty, calloused or
otherwise not giving a good
image
If registering, try a different finger.
If unlocking, clean finger
The batteries are depleted; low
voltage signal sounds.
Change batteries