Universal Security Instruments MDS107 서비스 매뉴얼

Blinks On once

approx every

40-45 seconds

Stays On

AC Power is present. DC Power is present.

Blinks On once approx every

40-45 seconds

Off

AC Power is not present and alarm is receiving DC Power. Check the breaker or fuse box for power.
If the breaker or fuse box looks normal, call a licensed electrician for assistance.

Silent

Silent

Blinks On

approx every

2 seconds

Stays On

Nuisance Alarm - If there is no hazard present, verify the alarm is mounted in the correct location
(see User's Manual, "AVOID THESE LOCATIONS" section). Reset alarm as instructed below.

Horn does not

sound when other alarms are active

or horn does not sound when

inter-connected alarm's test

button is pressed

Blinks On once

approx every

40-45 seconds

Stays On

or Off

Press and hold the smoke alarm Test/Silence button for at least 5 seconds. If still no alarm, turn off
AC Power at the circuit breaker or fuse box and disconnect the alarm from the mounting bracket
and make sure the connector plug is securely attached on units that did not alarm. If still no alarm,
have a licensed electrician check to see if the yellow wire is connected to the neutral wire.

Blinks On

approx every

2 seconds

Stays On

Originating Smoke Alarm - If hazard is identified, please take all precautions if an alarm sounds by
calling an Emergency Service and getting out of the home.

Off

Stays On

Non-originating Smoke Alarm - Another interconnected smoke alarm has sensed smoke, causing
all interconnected units to sound.

Blinks On once

approx every

40-45 seconds

(normal operation

mode) or Blinks on once approx every

10 seconds

(silence mode)

Stays On

QUICK FIND

®

 Alarm Origination - In an interconnected system, it is difficult to determine which

alarm initiated the alarms to sound. The 

QUICK FIND

®

 feature will allow you to immediately locate

the originating alarm (once  the alarms have stopped sounding). To initiate 

QUICK FIND

®

, press

the Test/Silence  button on any alarm; and, after releasing the button, the originating alarm will
continue to sound for approx 60 seconds. Reset the originating alarm. NOTE: In a non- interconnected
installation, it is necessary to test each alarm to determine the originating alarm.

Blinks On once

approx every

40-45 seconds

Stays On

To Reset the Alarm - Hold the Test/Silence button for approx. 10 seconds. This will clear alarm
origination. Reset after each smoke alarm event.

Silent

1 Chirp approx

 every 40 seconds

Stays On

Low Battery - Check to make sure the battery activation pull tab has been completely removed,
battery polarity is correct and the battery terminals are making contact with the smoke alarm contacts
in the battery drawer. If chirp continues, replace the 9V battery (see User's Manual for recommended
battery types).

Stays On

Silence Feature is activated by pressing and releasing the Test/Silence button on the initiating
alarm while in alarm condition. Silence mode will last for approx 8-12 minutes.

Blinks On

approx every

2 seconds

Silent

(alarmed

previously)

CONDITION OF ALARM AUDIBLE & VISUAL SIGNALS 

 SOLUTION / RECOMMENDATION

HORN

RED LED

GREEN LED

Blinks On once

approx every

40-45 seconds

(normal operation

mode) or Blinks on once approx every

10 seconds

(silence mode)

Blinks On once

approx every

40-45 seconds

1 Beep approx

every 60 seconds

Stays On

End-of-Service Life alarm. The alarm should be replaced immediately.

3 Beeps,

2 second pause,

Repeat

3 Beeps,

2 second pause,

Repeat

3 Beeps,

2 second pause,

Repeat

3 Beeps,

2 second pause,

Repeat

11407 CRONHILL DRIVE, SUITE A

OWINGS MILLS, MARYLAND 21117 USA

TELEPHONE: 410-363-3000 

• FAX: 410-363-2218 • E-MAIL: sales@usielectric.com

Visit Us on the Web! 

©2011, UNIVERSAL SECURITY INSTRUMENTS, INC.