Waters 2489 - Page 85

Using the operator interface 3-17
Auto zero on inject Selected by default, this parameter results in an auto
zero each time an Inject Start signal is received by
the detector via contact closure, Ethernet, or through
the front panel. You can disable this parameter by
pressing any numerical key to clear this box for either
or both channels.
Auto zero on λ
changes
This parameter results in an auto zero each time a
wavelength change is requested. If you disable this
function, significant changes in measured absorbance
can occur after each wavelength change. Selecting “to
zero” sets the signal level to zero. Selecting “to
baseline” maintains the previous baseline level when
the wavelength change is made. The default is “to
zero.”
Detector functions
Function Description