Service - Hach BioTector B7000 User Manual

Service

S E R V I C E
1 < R E A C T I O N
2 S E R V I C E
3 R E S E T S E R V I C E
4 S E T S E R V I C E
5 R E S E T S E R V I C E
The Service menu displays the system service information. It is also used to reset the service counter and
activate zero calibration cycles after the service is carried out.
1. Reaction Counter. This is the number of reactions performed by the BioTector.
2. Service Required In. This menu item specifies the number of days left before service is required. Note
that the factory setting for this counter is typical for normal site conditions, and the service interval may
have to be adjusted depending on site conditions.
3. Reset Service Counter. This menu item allows the user reset the service counter after the service has
been completed.
4. Set Service Zero. During the service of some critical component parts in the BioTector (e.g. Circulation
Pump), there is a possibility for contamination of such components and this may create an unacceptable
TOC offset (particularly in low range analyzers). Zero calibration may therefore be required after the
BioTector removes contamination as it operates. If this occurs the zero calibration can be automatically
initiated using the "Set Service Zero" function. When initiated, BioTector automatically runs a total of 5
zero calibration cycles during the following 100 online measurements (default values) and automatically
adjusts the zero offset values to compensate for the removal of the contamination. It will therefore not be
necessary to revisit the BioTector after the service or to repeat the zero calibration cycle.
"Set Service Zero" function can be activated while the BioTector is running or stopped. If the BioTector is
stopped, the service zero calibration cycle begins when the system is started. BioTector returns online
operation when the service zero calibration cycle is completed. In the example Service menu displayed
above, the first number entry "20" displays the number of online reactions, which will be carried out before
each service zero calibration cycle. The second number entry "5" displays the total number of zero
calibration cycles.
5. Reset Service Zero. This menu item allows the user to deactivate or stop the service zero calibration
cycle. If this function is activated during one of the zero calibration cycles, BioTector returns online
operation after completing the current zero calibration cycle.
C O U N T E R
R E Q U I R E D I N
C O U N T E R
Z E R O
Z E R O
0 9 : 1 7 : 2 8 1 2 - 0 9 - 0 2
5 2 3 8
1 8 0 D A Y S
2 0 , 5
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