Teledyne 3020M - Explosion proof paramagnetic oxygen analyzer User Manual
Page 52
4 Operation
Model 3020M
4-16
Teledyne Analytical Instruments
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.
L—5.00 M—25.00
H—100.00 Mode—AUTO
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).
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