Hach Ultra ORBISPHERE 511 Quick Manual page 6

Advanced Configuration (EC Sensor)
• Enable ext. pressure sensor: Check as
appropriate
• Enable negative concentration: Check as
appropriate
• Enable TPO or TPA calculation: Check if
required (portable instrument only)
Advanced Configuration (TC Sensor)
• Enable ext. pressure sensor: Check as
appropriate.
• Enable negative concentration: Check as
appropriate.
• Continuous purge during thermal cut off:
If thermal cutoff has been enabled, then
check this box to ensure that a
continuous purge of the TC sensor takes
place while the measurement session is
suspended due to the thermal cutoff
temperature value being exceeded.
• Offset and slope corrections: Enable
correction as appropriate.
• If enabled, the correction values for offset
and slope must be entered. These values
cannot be negative.
Page 6
Measurement (cont)
Note :
To manually set the TC sensor into a continuous
purge mode, press the Continuous Purge
button that is available from the Services -
Diagnostic - Channel x - Amplifiers menu.
Interferences Configuration (EC Sensor)
These options are available to take into account
the influence of some components or gases in the
sample during the measurement. By default all
available interference corrections are disabled.
Note :
When enabled, the H
calibrated. A warning pop-up window is displayed
to remind the user for this action.
• Liquid to gas factor: Enable correction as
appropriate.
• If checked, the percentage correction
factor must be entered. This value cannot
be negative.
• Select CO , H S or All disabled
2 2
depending on the type of sensor and
application.
• Select Chlorinity, Salinity or disabled. For
chlorinity and salinity, enter the actual
concentration in the sample.
• Select H enabled or disabled. If
2
enabled, enter the interfering gas
pressure (the partial pressure of H
sample).
interference must be
2
in the
2