Metrohm 746 VA Trace Analyzer - Manual (Page 301)

5.6 Method Specifications
746 VA Trace Analyzer / 747 VA Stand
5-150
Parameter Range; Default value / Meaning
linear
nonlinear
Y.offset
EV
ρρ
eff eff
Slope
0/linear
0/nonlinear
EV
ρρ
eff eff
Slope
0
0
Temperature 0.0...99.9 °C; 25.0 °C
Measurement temperature
Measurement temperature for calibration and measurement.
Owing to the large temperature dependence of the measured values
(
≥ 2%/°C), it is advisable to work with the 6.1418.220 thermostatted
measuring vessel and to enter the set temperature here.
Range min 0.001...999.99 ng...kg/L;
Lower limit of working range
Here, a lower limit can be optionally defined for the working range with
the calibration curve. If a mass concentration
Mass conc. less than
the value entered here is found for the substance, an error message is
put out and the remark
conc. out of range displayed on the
"RESULTS" page.
The lower limit of the working range (in terms of the effective mass
concentration
ρ
eff
) is marked by a vertical line in the display and on the
plot of the calibration curve.
Range max 0.001...999.99 ng...kg/L;
Upper limit of working range
Here, an upper limit can be optionally defined for the working range
with the calibration curve. If a mass concentration
Mass conc. greater
than the value entered here is found for the substance, an error
message is put out and the remark
conc. out of range displayed on
the "RESULTS" page.
The upper limit of the working range (in terms of the effective mass
concentration
ρ
eff
) is marked by a vertical line in the display and on the
plot of the calibration curve.