Teledyne 2000A-EU - General purpose thermal conductivity analyzer - Manual (Page 63)

Thermal Conductivity Analyzer Operation 4
4-25 Teledyne Analytical Instruments
ized during calibration, to ensure a straight-line input/output transfer function
through the analyzer.
Each range is linearized individually, as necessary, since each range will
usually have a totally different linearization requirement. Before setting the
algorithm curve, each range must be Zeroed and Spanned.
To linearize the ranges, you must first perform the four steps indicated at
the beginning of section 4.8 Programming. You will then be in the second
System menu screen.
MODEL APPLICATION
SELF_TEST ALGORITHM
4.8.2.1 Checking the linearization
From the System Function screen, select
ALGORITHM, and press
Enter .
Range linearization
—> Ш1 Ш2 Ш3 <—
Use the < > keys to select the range: 01, 02, or 03. Then press Enter .
Range: Ø —16 %
Gas use: O2 — N2
Press Enter again.
Algorithm setup:
VERIFY SET UP
Select and Enter
VERIFY to check whether the linearization has been
accomplished satisfactorily.
Dpt INPUT OUTPUT
Ш Ш.ШШ Ш.ШШ
The leftmost digit (under
Dpt) is the number of the data point being moni-
tored. Use the
∆∇
keys to select the successive points.
The
INPUT value is the input to the linearizer. It is the simulated output of
the analyzer. You do not need to actually flow gas.
The
OUTPUT value is the output of the linearizer. It should be the ACTU-
AL concentration of the span gas being simulated.
If the
OUTPUT value shown is not correct, the linearization must be
corrected. Press ESCAPE to return to the previous screen. Select and EN-
TER
SET UP to Calibration Mode screen.