Replacing Controller (Excellent) - Memmert BASIC Service Instructions Manual

12. Replacing controller (EXCELLENT)

• Pull out the mains supply plug!
• Remove the housing cover
• Pull off the turn control knob towards the front
• On 250°C/300°C ovens (UNE, UFE, SNE, SFE) unscrew the control chamber fan
• Cut the cable binder with the side cutters and remove it
• Release the screw from the air flap spindle and remove the spindle
• Disconnect the cable (8-way) for power supply from controller location J13
• Remove connector (4-pin) for Pt100 monitor controller from controller location J3
• Remove connector (4-pin) for Pt100 working controller from controller location J4
• Remove connector (10-pin) for RS232 interface from controller location J9
• Remove connector (4-pin) for main switch from controller location J2
• Release three fixing screws (see ill.)
• Remove the controller towards the back
Cable binder
J J 13 13
Screws for control
chamber fan
Screw air flap spindle
J J 4 4 J J 3 3
page 13
J J 2 2 J J 9 9
Example
SNE 500
Fixing screws
controller/display
Cable binder
SERVICE - UIS