1.1 Instrument description
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874 Oven Sample Processor
1.1.2 Instrument components
The 874 Oven Sample Processor has the following components:
￭ Oven
Oven module made of aluminum with software-operated temperature
control for heating the sample vessel.
￭ Fan
Propeller fan for cooling the oven module.
￭ Inlet valve
Valve for switching over the source of the gas flow.
￭ Air pump
Pump for generating the gas flow.
￭ Outlet heater
Heating tubing for preventing the condensation of moisture.
￭ Lift with rods
Guidance device with needle adapter and tubing for the gas flow.
￭ Turntable
For the standard sample rack with a capacity of 36 sample vials (6 mL)
or the special sample rack with a capacity of 25 sample vials (⌀ = 16 -
32 mm).
1.1.3 Intended use
The 874 Oven Sample Processor is designed for usage as an auxiliary
device for automated sample preparation in analytical laboratories. Its
main area of application is water content determination using Karl Fischer
titration (coulometric or volumetric). The 874 Oven Sample Processor ena-
bles the application of thermal gas extraction technology.
This instrument is suitable for processing chemicals and flammable sam-
ples. Therefore, the use of the 874 Oven Sample Processor requires the
user to have basic knowledge and experience in handling toxic and caustic
substances. Knowledge regarding the application of fire prevention meas-
ures prescribed for laboratories is also mandatory.
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