Teledyne T101, Operation Manual, Page: 72 / 375

Operating Instructions Teledyne ML – T101 Operation Manual
68
4.4.4.3. Reporting Range Modes
The T101 provides three analog output range modes to choose from. The actual signals
output on the two analog signal channels depends on whether or not the analyzer includes
a SO
2
/H
2
S multigas measurement option and if so which measurement mode is selected.
•
Single range (SNGL) mode: This mode sets a single maximum range for
the analog output. If single range is selected (see Section 4.4.4.4) both
outputs are slaved together and will represent the same measurement
span (e.g. 0-50 ppm), however their electronic signal levels may be
configured differently (e.g. 0-10 VDC vs. 0-.1 VDC – see Section 4.6.3.1).
In SO
2
/H
2
S multigas measurement mode, although the two inputs are
measuring different gases, the two measurements scales are identical.
Independent range ( IND ) mode: This mode allows the A1 and A2 outputs to be
configured with different measurement spans (see Section 4.4.4.5) as well as separate
electronic signal levels (see Section 4.6.3.1) and, if the instrument is equipped with the
SO
2
/H
2
S multigas measurement option, different gas measurements.
•
Auto range (AUTO) mode: As in single range mode, both outputs are
slaved together and will represent the same measurement span; however
this mode gives the analyzer the ability switch to automatically switch
between the two user selected ranges (High and Low). This switching
occurs dynamically as the concentration value fluctuates.
High/low range status is output via the External Digital I/O Status Bits (see Section
5.1.1.1).
To select the Analog Output Range Type press:
SAMPLE RANGE = 500.0 PPB H2S =XXX.X
< TST TST > CAL SETUP
SAMPLE ENTER SETUP PASS : 818
8 1 8 ENTR EXIT
SETUP X.X
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
EXIT Returns
to the Main
SAMPLE Display
Only one of the
range modes may
be active at any
time.