Teledyne 6600, Operating Instructions Manual

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3 Operation Model 6600
3-30 Part I
Teledyne Analytical Instruments
Sel rng to set appl:
—> Ø1 Ø2 Ø3 <—
Use the
UP/DOWN switch
to increment/decrement the range number to
01, 02, 03, or CAL, and
Enter
.
Gas Name **********
FR:Ø TO:1Ø %
Use the
UP/DOWN switch
to increment the respective parameters as
desired, and
Enter
to move to the next. On the last field %/ppm Enter to accept
the values and return to range selection menu. (See note below.) Repeat for each
range you want to set.
Note: The ranges must be increasing from low to high, for example,
if Range 1 is set to 0–10 % and Range 2 is set to 0–100 %, then
Range 3 cannot be set to 0–50 % since that makes Range 3
lower than Range 2.
Ranges, alarms, and spans are always set in either percent or ppm units, as
selected by the operator, even though all concentration-data outputs change
from ppm to percent when the concentration is above 9999 ppm.
Note: When performing analysis on a fixed range, if the concentra-
tion rises above the upper limit as established by the operator
for that particular range, the output saturates at 1 V dc (or 20
mA). However, the digital readout and the RS-232 output
continue to read regardless of the analog output range.
To end the session, send:
st <enter>
st <enter>
to the analyzer from the computer.
3.8.2 The Curve Algorithm Screen
The Curve Algorithm is a linearization method. It provides from 1 to 9
intermediate points between the ZERO and SPAN values, which can be normal-
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.
To linearize the ranges, you must first perform the four steps indicated at
the beginning of section 3.8 Programming . You will then be in the second
System
menu screen.