Operating Instructions Model 360E Instruction Manual
6.8.4. Dual Range Mode (DUAL)
Selecting Dual Range mode allows the A1 and A2 outputs to be configured with different reporting ranges. The
analyzer software calls these two ranges low and high. The low range setting corresponds with the analog
output labeled A1 on the Rear Panel of the instrument. The high Range Setting corresponds with the A2 output.
While the software names these two ranges low and high, they do not have to be configured that way. For
example: The low range can be set for a span of 0-1000 ppm while the high range is set for 0-500 ppm.
In DUAL range mode the RANGE test function displayed on the front panel will be replaced by two separate
functions:
RANGE1: The range setting for the A1 output.
RANGE2: The range setting for the A2 output.
To set the ranges press following keystroke sequence
.
SETUP X.X PRIMARY SETUP MENU
CFG DAS RNGE PASS CLK MORE EXIT
SETUP X.X RANGE CONTROL MENU
MODE
SET UNIT EXIT
SETUP X.X RANGE MODE: SNGL
SNGL DUAL AUTO ENTR EXIT
SETUP X.X RANGE CONTROL MENU
MODE
SET UNIT EXIT
SETUP X.X HIGH RANGE:500.0 Conc
0 0 5 0 0 .0 ENTR EXIT
SETUP X.
X
LOW RANGE: 500.0 Conc
0 0 1 0 0 .0 ENTR EXIT
SETUP X.X RANGE CONTROL MENU
MODE
SET UNIT EXIT
EXITReturns
to the Main
SAMPLE Display
SETUP X.X RANGE MODE: DUAL
SNGL
DUAL AUTO ENTR EXIT
Toggle the
Numeral Keys
to set the upper
limit of each
range.
SAMPLE* RANGE = 500.000 PPM CO2 =X.XXX
< TST TST > CAL SETUP
When the instrument’s range mode is set to DUAL the concentration field in the upper right hand corner of the
display alternates between displaying the low range value and the high range value. The concentration currently
being displayed is identified as follows: C1 = Low (or A1) and C2 = High (or A2).
NOTE
In DUAL range mode the LOW and HIGH ranges have separate slopes and offsets for
computing CO2 concentration.
The two ranges must be independently calibrated.
80 05232 Rev B3