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Teledyne API - T100 UV Fluorescence SO2 Analyzer SETUP Menu
95
5.4.3.3. AUTO RANGE MODE (AUTO)
In AUTO range mode, the analyzer automatically switches the reporting range between
two user-defined ranges (low and high). The unit will switch from low range to high
range when either the SO
2
concentration exceeds 98% of the low range span. The unit
will return from high range back to low range once both the SO
2
concentration falls
below 75% of the low range span.
In AUTO Range mode the instrument reports the same data in the same range on both
the A1 and A2 outputs and automatically switches both outputs between ranges as
described above. Also, the RANGE test function displayed on the front panel will be
replaced by two separate functions:
RANGE1: The LOW range setting for all analog outputs.
RANGE2: The HIGH range setting for all analog outputs.
The high/low range status is also reported through the external, digital status bits (refer
to Section 8.1.1).
To set individual ranges press the following control button sequenc
e.
SAMPLE RANGE = 500.000 PPB SO2 =XXX.X
< TST TST > CAL SETUP
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 IND AUTO ENTR EXIT
SAMPLE ENTER SETUP PASS : 818
8 1 8 ENTR EXIT
EXIT x 2 returns
to the main
SAMPLE display
SETUP X.X RANGE MODE:
A
UTO
SNGL
IND 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 5 0 0 .0 ENTR EXIT
Toggle the numeral
buttons to set the
LOW and HIGH
range value.
ENTR accepts the
new setting, EXIT
ignores the new
setting.
Figure 5-6: SETUP RNGE – Auto Range Mode
IMPORTANT
IMPACT ON READINGS OR DATA
In AUTO range mode, the LOW and HIGH ranges have separate slopes
and offsets for computing SO
2
concentration. The two ranges must be
independently calibrated.
06807C DCN6650