Chemglass CLS-2543 Incu-Shake Mini - Manual (Page 8)

The Incu-Shaker Mini includes a flat non-stick platform for low
speed operation with many common vessels, including trays and
dishes. For installation of any of the optional platform the user
must:
1.) Unscrew the four plastic, platform screws from the
corners of the internal platform and remove the green
rubber mat.
2.) Clean any dirt or debris from the metal base-platform and
apply the desired optional platform so that the four corner
holes are aligned.
3.) Screw in the four plastic, platform screws tightly by hand.
III-3. Error Messages
1) This message “rErrL” represents a low speed speed error
- Check the platform to ensure that nothing is obstructing it’s
movement
- Check the set speed to make sure that it is within the
acceptable range (30 to 300rpm)