HACH LANGE ORBISPHERE 6110, User Manual

Page: 59 / 76

57
Section 9 Maintenance
9.1 Schedule
The following table shows the recommended maintenance schedule for an average of 500
package analyses per week. This proposed schedule should be modified according to operating
conditions.
9.2 Purge gas cylinder
Check the purge gas cylinder (CO
2
99.9% purity) daily to ensure there is an adequate supply of
gas.
Action Interval
Clean instrument exterior Daily
Refill sonotrode base with water Daily
Check piercing tip is tight Daily
Check the purge gas pressure and purity Daily
Run a reference sample (old beer) through the system to verify the
CO
2
sensor and the O
2
response/residual (< 20 ppb)
Daily
Goretex filter replacement (see Wizards on page 58 ) Weekly
Remove and clean instrument front door inside and out Weekly
Clean optical barrier windows Weekly
Clean the sonotrode surface of the package holder Weekly
Clean laser optics used to position the package Weekly
Refill the antifoam cartridge (see Antifoam cartridge preparation on
page 23 )
Approximately every 6 weeks
O
2
sensor cartridge replacement and calibration (see Wizards on
page 58 )
Every 2-3 months
Piercing gasket replacement (see Wizards on page 58 ) Every 3 months
Piercing tip replacement (see Wizards on page 58 ) Every 6 months
Clean antifoam cartridge Every 6 months
Purge and clean antifoam system Every 6 months
Replace the display protection film Every 6 months
Replace the rim detector protection Every 6 months
Replace flow chamber O-ring Every 6 months
Replace the blue sample tubing Every 6 months
The following are performed by a Hach Lange service technician
Sensor calibrations Twice a year
Replace needle valve Yearly
Replace antifoam cartridge internal membrane Yearly
Antifoam pump maintenance Yearly
Piercing module maintenance Yearly
CAUTION
On no account should the cylinder become empty while the instrument is switched on, as this
can cause damage to the carbon dioxide sensor.