Setting The Analog Output Ranges; Automatic Ranging; Fixed Range Analysis - Teledyne 3020M Operating Instructions Manual

4 Operation
The automatic air calibration range is always 0-25 % and is not pro-
grammable.

4.11.1 Setting the Analog Output Ranges

To set the ranges, ENTER the RANGE function mode by selecting
RANGE from the MAIN MENU. The RANGE screen appears.
Use the DOWN/UP control to the range to be set: low (L), medium (M),
or high (H).
Use the DOWN/UP control to enter the upper value of the range (all
ranges begin at 0 %). Repeat for each range you want to set. ENTER to
accept the values and return to the Analysis Mode. (See note below.)
Note: The ranges must be increasing from low to high, for example,
if range 1 is set as 0–10 % and range 2 is set as 0–100 %, range
3 cannot be set as 0–25 % since it is lower than range 2.

4.11.2 Automatic Ranging

After defining your analysis ranges, set Mode– to AUTO, if not already
there. ESCAPE to re-enter the ANALYZE screen using the fixed range.

4.11.3 Fixed Range Analysis

The autoranging mode of the instrument can be overridden, forcing the
analyzer DC outputs to stay in a single predetermined range.
To switch from autoranging to fixed range analysis, ENTER the
RANGE function by selecting RANGE from the MAIN MENU.
Use the DOWN/UP control to move AUTO between the arrows.
Use the DOWN/UP control to switch from AUTO to FX/LO, FX/
MED, or FX/HI to set the instrument on the desired fixed range (low, me-
dium, or high).
4-16
L—5.00 M—25.00
H—100.00 Mode—AUTO
L—5.00 M—25.00
H—100.00 Mode—FX/LO
or
L—5.00 M—25.00
H—100.00 Mode—FX/MED
or
Teledyne Analytical Instruments
Model 3020M