Hach BioTector B3500ul, User Manual

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ZERO WATER NO ▪
When ZERO WATER is programmed as “NO”, BioTector adjust s
the zero background level based on the carbon content in the
acid and base reagents.
▪
When ZERO WATER is programmed as “ YES ”, BioTector takes
DI Water from the available system port (which could be the
ZERO WATER port or MANUAL/CALIBRATION port, and if
these ports are not available SAMPLE 1 port), and uses DI
Water as a sample during the Zero Calibration and Zero Check
cycles.
▪
When this function is activated, the relevant system messages
are also displayed in Install New Reagents menu. See section
2.2.2.1 Install New Reagents for details.
pH ADJUST BASE 14 , 0 , 0 ▪ The three pH ADJUST BASE parameters defines the number of
pulses the base reagent pump operates to inject base reagent
into the reactor at each available system operation range, which
are Range 1, Range 2 and Range 3.
▪ This function is used to neutralize the pH of the Mixer Reactor.
pH ADJUST TIME 60s ▪ pH ADJUST TIME determines the mixing time (60 seconds by
default) the Mixer Reactor operates for the pH neutralization of
the reactor.
SERVICE ZERO 20 , 5
▪
SERVICE ZERO specifies the number of zero calibration cycles
to be repeated after a defined number of reactions between
each zero calibration cycle. The first setting “20” is the number of
reactions between each zero calibration cycle, and the second
setting “5” is the total number of zero calibration cycles which will
be carried out.
▪
SERVICE ZERO cycle is activated by the SET SERVICE ZERO
function in Service menu.
ZERO ADJUST HISTORY ▪
Anytime the Zero Adjust value is changed, either manually by
the user or automatically by the system, the new Zero Adjust
value is stored in the Zero Adjust History archive with the time,
date, zero range and the zero type (calibration, check or manual)
information.
▪ The meaning of the codes used in the system for zero adjust are
as follows:
TOC/TC-ZC: Zero calibration result for TOC/TC.
TOC/TC-ZK: Zero check result for TOC/TC.
TOC/TC-ZM: Manually input Zero Adjust for TOC/TC.