Hanna Instruments HI 901 - Manual (Page 114)

9-4
MAINTENANCE, PERIPHERALS
9.1.3 Disassembling Burette
To dismount the dispensing tube and the aspiration tube follow these steps:
• Slide up the protection tube (4).
• Remove the tube lock (5) from the burette holder.
• Slide the mounting tool (3) over the dispensing tube.
• Unscrew the fitting (2).
• Remove the mounting tool (3) from the tube.
• Remove the tube.
• Repeat these steps for the aspiration tube.
9.1.4 Assembling Burette
Both, the aspiration and the dispensing tube have a fitting and a protection tube. The
aspiration tube will be mounted in the left side and the dispensing tube will be mounted in
the right side of the burette (see diagram on the next page).
To attach the dispensing tube and the aspiration tube follow these steps:
• Slide the mounting tool (3) over the dispensing tube.
• Insert the flat-shaped end of the dispensing tube into the valve outlet.
• Screw in the fitting (2) with the mounting tool.
• Remove the mounting tool (3) from the tube.
• Bend the tube up into a vertical position.
• Press the tube lock (5) into the burette hole.
• Slide down tightly the protection tube (4) into the dedicated gap of the tube lock.
• Repeat these steps for the aspiration tube.