Hach BioTector B3500e, User Manual

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1. The Zero Adjust settings for each range are updated automatically by the system using the un-
calibrated TOC measurement (not the results seen on the LCD screen). If a Zero Check is used
to check the zero offset, the suggested values are shown in brackets “[ ]” next to the actual Zero
Adjust settings.
2. If the CO2 LEVEL is set as AUTO for automatic updating in the Reaction Check menu, then the
reaction check CO
2
Level is also updated automatically.
3. The CO
2
Level is also checked against the BASE CO2 ALARM setting in Fault Setup menu. If the
measured CO
2
Level is greater that the BASE CO2 ALARM value, system generates a “52_HIGH
CO2 IN BASE” warning.
6. Run Zero Check. Zero Check cycle is similar to the Zero Calibration above, but BioTector does not
update any of the Zero Adjust or CO
2
Level settings. System only checks the BASE CO2 ALARM
described above.
8. Zero Program. Zero Program function allows the user to program the number of zero reactions run at
one or more ranges (R1, R2 and/or R3). When the number of zero calibration reactions for one or two of
the ranges is set to zero, system runs the zero cycle on the programmed range or ranges and calculates
the Zero Adjust values for the other ranges automatically. It is recommended not to modify the factory set
Zero Program values unless it is absolutely necessary. Any unnecessary modification in this setting may
have an impact on the zero offset values.
9. Zero Average. Zero Average function allows the user to program the number of zero reactions to be
averaged for each range (R1, R2 and/or R3) at the end of the zero cycles. It is recommended not to
modify the factory set Zero Average values unless it is absolutely necessary. Any unnecessary
modification in this setting may have an impact on the zero offset values.
11.

Zero Program. Zero Program is a link to Maintenance, System Configuration, Sequence Program,
Zero Program menu. See Section 8.3.4.2 Zero Program .