Service - Hach BioTector B7000i User Manual

8.1.7 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. See Section
BioTector is powered up, the number of days counter of the Service Required In function keeps operating
regardless of the system is running or stopped.
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. Mixer
Reactor), 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. An asterisk "*"
mark is displayed to indicate that this function is activated. 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 to stop the service zero calibration
cycle. See "4. Set Service Zero" function above. When the Reset Service Zero function is selected, the
asterisk "*" mark, which indicates the activation of Set Service Zero function, is removed. If Reset Service
Zero function is selected 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
8.3.8 Fault Setup for details. When the
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