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RHK900 (SBT625ss) for USA                                     Updated: 16-12-2014 

 

3)

 

Make sure alarm time is correctly set for AM or PM (1). 

 

Setting Alarm 2 

1)

 

Once alarm AL1 has been set, slide 

ALARM SELECTOR SWITCH (5)

 to AL2 position. , the alarm 

indicator 

AL2 (13) 

will light up. 

2)

 

Press and hold the 

ALARM SET (10)

 and the 

FAST Button (8) 

or the 

SLOW button (9) 

to advance 

the clock display until you reach desired alarm setting. 

 

Selecting 12 or 24 hours format – 

Press and hold the 

Fast button (8) 

for 6 seconds to enter the hour selection mode, release the 

Fast button (8) 

when the display shows "12 H" or "24 H".  Short press the 

FAST button (8)

 to 

toggle between 12 or 24 hours. If no selection is made within 4 seconds, then the last displayed 
hour format will be chosen and the display will return to the normal Time mode. 

 

Alarm – 
To Enable Alarms: 

Slide the 

Alarm Mode Switch (4) 

to your desired position:- 

a)  “OFF“  for Alarm off      b) “BUZZ“ for sound   c) “VIB“ for bed shaker  d) “VIB/ BUZZ“ for both 
sound and bed shaker  

NOTE:

 once the wake up mode is chosen, this will apply to both alarms. 

 
To Select Alarm

 

1)

 

slide the 

ALARM MODE SWITCH (5) 

to AL1 position, the alarm indicator 

“AL1“ (2)

 will light up 

to indicate Alarm 1 is activated. 

2)

 

slide the 

ALARM MODE SWITCH (5) 

to AL2 position, the alarm indicator 

“AL2“ (13)

 will light up 

to indicate Alarm 2 is activated. 

3)

 

slide the 

ALARM MODE SWITCH (5) 

to AL1+AL2 position, the alarm indicator 

“AL1“ (2) 

and

 

“AL2“ (13)

 will light up to indicate both Alarm 1 and Alarm 2 are activated. 

 
Alarm Patterns – 

When the alarm is activated, alarm pattern of the buzzer / flashing display will be out of sync with the 
vibrator. This means that when the buzzer / flashing display is ON, the vibrator will be OFF and while the 
buzzer/ flashing display is OFF, the vibrator will be ON. 
 

ALARM 1 - 

When Alarm 1 is activate, it will have 3 beeps, then vibrate. This pattern is repeated until the  

alarm is stopped.

 

ALARM 2

 - 

When Alarm 2 is activate, it will have 4 beeps, then vibrate. This pattern is repeated  

until the alarm is stopped. 

 

Adjusting The Alarm Duration Time 

The default alarm duration time setting is 30 minutes, you may adjust the alarm duration between 
1 minute and 59 minutes as desired. To adjust the alarm duration: 
• Press and hold the 

AL. SET button (10)

 for six seconds. The clock display will show the default 

alarm duration as ‘30’, release the AL. SET button. 

• Press the

 SLOW button (9)

 to adjust the alarm duration to the desired setting, from 1 minute to 

59 minutes. 

• When the display is showing the desired alarm duration time, it will return to the normal clock 

mode after 3 seconds. The new alarm duration time setting becomes the new default and 
remains in the memory until you change it again.

 

 

Shutting Off Alarm – 

Alarm can be shut off temporarily for the day or shut off permantently. 

1)

 

When the alarm goes off, simply press the 

AL Off button (11) 

the alarm will shut itself off 

for the day and come back on at the same time the next day if the alarm setting has not 
changed. 

2)

 

To shut off the alarm permanently, slide

 

Alarm Mode Switch (8)

 

to OFF positon. The alarm 

will not come on until 

Alarm Mode Switch (8)

 

is set to other position. 

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