Metrohm tiamo 2.4 Manual - Manual (Page 1632)

8.4 Manual control - Functions
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tiamo 2.4
Gas flow
Inlet
Selection of the carrier gas inlet.
Selection Pump | Valve
Default value Pump
Pump
Use of ambient air as carrier gas.
Valve
Use of gas from a compressed gas cylinder.
Flow rate
874
Input range
10 - 150 mL/min
Default value 50 mL/min
Gas type
Gas type of the carrier gas.
Selection Air | Nitrogen | Other gas
Default value Air
In the case of the 874 USB Oven Sample Processor,
a gas flow factor has to be specified for the carrier
gas used if Other gas is selected. The gas flow fac-
tor is used for the correct measurement of the flow
rate.
Gas flow factor
Factor for the correct determination of the gas flow. This parameter is dis-
played only if Gas type = Other gas. For air and nitrogen, the appropri-
ate gas flow factor is inserted automatically. The gas flow factor values for
other commonly used carrier gases can be found in the table Gas flow
factors of various gases.
Input range 0.001 - 2.000 (Increment: 0.001)
Default value 1.000
Table 45 Gas flow factors of various gases
Gas type Gas flow factor
Argon 0.950
Helium 0.300
Air 1.000