Teledyne 2010B - Split architecture thermal conductivity analyzer - Manual (Page 58)

4 Operation Model 2010B
4-24 Part I Teledyne Analytical Instruments
MODEL APPLICATION
SELF_TEST ALGORITHM
Use the < > arrow keys again to move the blinking to
APPLICATION
and press Enter .
Sel rng to set appl:
—> Ш1 Ш2 Ш3 CAL <—
Use the
∆∇
arrow keys to increment/decrement the range number to 01,
02, 03, or CAL, and press Enter .
Imp: H2 Bck: N2
FR:Ø TO:1Ø %
Use the < > arrow keys to move to Imp: (impurity), Bck: (background),
FR: (from—lower end of range), TO: (to—upper end of range), and PPM or %.
Use the
∆∇
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 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:
If started with the RS-232, send:
st
st
to the analyzer from the computer.
If started through the front panel, turn the instrument off and back on.
Press the Enter key twice to return to the Analyze mode.