SYSMEX XE-5000, Instruction Manual, Page: 178 / 262

CHAPTER 9 Cleaning and Maintenance
9-50 Sysmex XE-5000 Instructions for Use
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Pneumatic Unit vacuum
The Pneumatic Unit vacuum cannot be adjusted with the
Pneumatic Unit. If the vacuum indicator on the front panel of
the Pneumatic Unit shows below 0.05 MPa, take the following
steps:
1. Pinch the tube that runs from the Pneumatic Unit to the
Main Unit. If the vacuum increases to 0.05 MPa or more,
there is leakage in the Main Unit. Contact your Sysmex
technical representative.
2. Check the tube between the Main Unit and the Pneumatic
Unit or inside the Pneumatic Unit. If any of them is
disconnected, connect it securely.
Adjusting the vacuum to 0.04 MPa
This vacuum is used to transfer fluid between the chambers.
1. Display the Sensor 1 screen on the LCD screen.
See “Chapter 9: 9.21 Displaying the pressure or vacuum”.
2. Loosen the locking nut for the bellows unit.
3. Adjust the pressure while watching the pressure displayed
on the Sensor 1 screen.
To increase the pressure, turn the knob clockwise.
Normal range: 0.04 ± 0.001 MPa
Note:
After a long period of use, the vacuum decreases
gradually. In such cases, the vacuum pump may need
to be repaired or replaced. Please contact your
Sysmex technical representative.
Information
Always adjust pressure so as to increase to the
predetermined level. If the pressure is too high, lower
it below that level once; then raise it to the set level.
Locking nut
Adjustment
knob
Low High