Dilution Ratio - Teledyne 100E Instruction Manual

Operating Instructions

6.5.7. Dilution Ratio

The dilution ratio is a software option that allows the user to compensate for any dilution
of the sample gas before it enters the sample inlet. Using the dilution ratio option is a 4-
step process:
1. Select reporting range units: Follow the procedure in Section 6.5.6.
2. Select the range: Use the procedures in Section 6.5.2 – 6.5.5. Make sure that the
SPAN value entered is the maximum expected concentration of the undiluted
calibration gas and that the span gas is either supplied through the same dilution
inlet system as the sample gas or has an appropriately lower actual concentration.
For example, with a dilution set to 100, a 1 ppm gas can be used to calibrate a
100 ppm sample gas if the span gas is not routed through the dilution system. On
the other hand, if a 100 ppm span gas is used, it needs to pass through the same
dilution steps as the sample gas.
3. Set the dilution factor as a gain (e.g., a value of 20 means 20 parts diluent and 1
part of sample gas):
DIL only appears
if the dilution ratio
option has been
installed
Toggle these keys to set the dilution
factor.
This is the number by which the
analyzer will multiply the SO
concentrations of the gas passing
through the reaction cell.
The analyzer multiplies the measured gas concentrations with this dilution factor and
displays the result.
4. Calibrate the analyzer. Once the above settings have been entered, the instrument
needs to be recalibrated using one of the methods discussed in Chapter 7.
70
SAMPLE* RANGE = 500.000 PPB
< TST TST > CAL
PRIMARY SETUP MENU
SETUP C.3
CFG DAS
RNGE
SETUP C.3
MODE SET UNIT
SETUP C.3
0 0 0
2
SETUP C.3
0 0 2
Model 100E Instruction Manual
SO2 =X.XXX
SETUP
PASS CLK MORE EXIT
RANGE CONTROL MENU
EXIT
DIL
DIL FACTOR: 1.0 GAIN
ENTR EXIT
1 .0
DIL FACTOR: 20.0 GAIN
0 .0 ENTR EXIT
EXIT ignores the
new setting.
ENTR accepts the
new setting.
045150102 Rev XB1