Auto Range Mode (Auto); Range Units - Teledyne 200E Instruction Manual

Operating Instructions

6.5.5. Auto Range Mode (AUTO)

In AUTO range mode, the analyzer automatically switches the reporting range between two
user-defined ranges (low and high). The same low and high span settings are applied
equally to NO, NO and NO
2
when either the NO, or NO
return from high range back to low range once both the NO and NO
below 75% of the low range span.
In AUTO range mode 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
(Section 6.9.1). To set individual ranges press the following keystroke sequence.
SAMPLE RANGE = 500.0 PPB
< TST TST > CAL
PRIMARY SETUP MENU
SETUP X.X
CFG DAS RNGE PASS CLK MORE
SETUP X.X RANGE CONTROL MENU
MODE SET UNIT
SETUP X.X RANGE MODE:
SNGL DUAL AUTO
Low and high ranges have separate slopes and offsets for computing the NO and
NOx concentrations. Hence, the two ranges must be calibrated independently.

6.5.6. Range Units

The M200E can display concentrations in parts per billion (10
6
million (10 mols per mol, PPM), micrograms per cubic meter (µg/m
3
cubic meter (mg/m , MG). Changing units affects all of the display, COM port and iDAS
values for all reporting ranges regardless of the analyzer's range mode. To change the
concentration units:
52
readings. The unit will switch from low range to high range
X
concentration exceeds 98% of the low range span. The unit will
X
NOX=X.X SETUP X.X
SETUP SNGL DUAL AUTO
SETUP X.X
MODE SET
EXIT
SETUP X.X
EXIT 0 0
SETUP X.X
SNGL
ENTR EXIT 0 0
NOTE
Model 200E Instruction Manual
X
RANGE MODE: AUTO
ENTR EXIT
RANGE CONTROL MENU
UNIT EXIT
LOW RANGE:
500.0 Conc
5 0 0 .0 ENTR EXIT
HIGH RANGE:
500.0 Conc
5 0 0 .0 ENTR EXIT
9
mols per mol, PPB), parts per
concentrations fall
EXIT x 2 returns
to the main
SAMPLE display
Toggle the numeral
keys to set the
LOW and HIGH
range value.
ENTR accepts the
new setting, EXIT
ignores the new
setting.
3
, UG) or milligrams per
044100102 Rev A