Chamberlain merlin MT600 Installation And Operating Instructions Manual page 11

24
TEST THE SAFETY REVERSE SYSTEM
The safety reverse system test is important. Garage door must reverse on contact with a 40mm obstacle laid flat
on the floor. Failure to properly adjust opener may result in serious personal injury from a closing garage door.
Repeat test once a month and adjust as needed.
Procedure: Place a 40mm obstacle (1) laid flat on the floor under the garage door. Operate the door in the down
direction. The door must reverse upon contact with the obstruction. If the door stops on the obstacle, remove
obstacle and repeat Setting the Limits and Force Sections 22 & 23 and repeat safety reverse test.
When the door reverses on the 40mm obstacle, remove the obstacle and run the opener through a complete
travel cycle. Door must not reverse in closed position. If it does, repeat Setting the Limits and Force sections 22
and 23 and repeat safety reverse test.
40mm
25
USING THE C98 MOTION DETECTING CONTROL PANEL (OPTIONAL ACCESSORY)
Press the push bar to open or close the door. Press again to stop the door.
Light feature
Press the light button to turn the opener light on or off. It will not control the opener lights
when the door is in motion. If you turn it on and then activate the opener, the light will
remain on for 2 1/2 minutes. Press again to turn it off sooner. The 2 1/2 minute interval
can be changed to 1-1/2, 3-1/2 or 4-1/2 minutes as follows: Press and hold the Lock
button until the light blinks(about 10 seconds). A single blink indicates that the timer is
reset to 1-1/2 minutes. Repeat the procedure and the light will blink twice, resetting the
timer to 2-1/2 minutes. Repeat again for 3-1/2 minute interval, etc., up to a maximum of
four blinks and 4-1/2 minutes.
Lock feature
Designed to prevent operation of the door from hand-held transmitters. However, the
door will open and close from the Door Control, the Outside Keyswitch and the Keyless
Entry Accessories.
To activate, press and hold the Lock button for 2 seconds. The push bar light will flash as
long as the Lock feature is on.
To turn off, press and hold the Lock button again for 2 seconds. The push bar light will
stop flashing.
The Lock feature will also turn off whenever the "LEARN" button on
the opener panel is activated.
1
Locate minimum 1.5m above
the floor.
10
1
40mm