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Model 8400B
"Autosal" Laboratory Salinometer
Refinements Make "The Industry Standard" Better Than Ever
G uildline Model 8400B "Autosal" Laboratory Salinometer is
the result of many refinements to the "Industry Standard".
This Salinometer employs a unique continuous flow system,
where the sample water is drawn under low air pressure from
the original sample bottle. A high stability temperature control
bath and heat exchanger maintain this sample at a precisely
defined temperature during analysis, avoiding the need for
temperature compensation. The accuracy of better than 0.002
Equivalent Practical Salinity Units (PSU) has been achieved by
improvements in the temperature stability of the bath.
The unique continuous sample flow system offers a marked
improvement in speed and convenience over the conventional
salinometer method requiring several discrete sample volumes
for flushing and measurement.
Only 50 milliliters of sample water are required to achieve a
final reading, including flushing. Semi-automatic operation
gives the final digital readout of conductivity ratio in less than
one minute, with a resolution of better than 0.0002 Equivalent
PSU.
The 8400B has a redesigned sample bottle holder, which
provides for easy attachment of original sample bottles. There
is a bottle data logging facility built in as standard, which
provides output of conductivity ratio, bottle number, bath
temperature and standardization reference number.
Bath temperature is selectable from 18 0C to 33 0C in 3 0C steps.
There is a window for viewing sample water under test flowing
8400B FEATURES through the conductivity cell. Operating controls include
conductivity range select, display function switch for zero,
> Accuracy <0.002 Salinity standby or read, bath temperature control check, standard
seawater standardization set, temperature bath drain and fill
> Range 2 to 42 in Salinity controls, and a sample flow rate control which permits deep
> Improved temperature stability cold water samples to be measured immediately.
> No temperature compensation required
The 8400B "Autosal" provides incredibly accurate
> Small samples & rapid measurements
salinity measurements in under a minute using
> Data logging standard just 50ml of sample water
> Improved maintainability
The 8400B has many improvements in the design and layout of
the instrument. Particular care has been taken to improve the
power supply with better input filtering and a new cable
harness. There is a heater failure lamp included on the front
panel, and a front sub-panel reduces wear on the internal
hoses, when the front door is opened for maintenance. There
are also significant changes internally to improve ease of
maintenance, such as access to the pumps.
8400B "Autosal" Laboratory Salinometer
8400B general specifications
Measurement Range: 0.0001:1.15 Conductivity Ratio
0.004 to 76mS/cm
2 to 42 Equivalent Practical Salinity Units (PSU)
Accuracy: <