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3 Operation/Control Unit Model 5000B
3-30 Part I
Teledyne Analytical Instruments
scale setting until amplifier saturation is reached. Below amplifier saturation, the
overrange readings are accurate UNLESS the application uses linearization over
the selected range.
To program 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.
ALGORITHM APPLICATION
MORE OUTPUT: 4MA
Use the < > arrow keys again to move the blinking to APPLICATION
and press Enter.
Sel rng to set appl:
—> Ø1 Ø2 Ø3 CAL <—
Use the DÑ arrow keys to increment/decrement the range number to
01, 02, 03, or CAL, and press Enter.
Fluid Name **********
FR:Ø TO:1Ø %
Use the < > arrow keys to move to Fluid Name, FR: (from—lower end
of range), TO: (to—upper end of range), and PPM or %.
Use the DÑ arrow keys to increment the respective parameters as
desired. Press Enter to accept the values and return to Analyze mode. (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 concentration
rises above the upper limit as established by the operator for that
particular range, the output saturates at 1 V dc (or 20 mA). How-
ever, 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>