Dilution Ratio - Teledyne T360 Operation Manual

Operating Instructions

4.8.7. Dilution Ratio

DIL only appears
if the dilution ratio
option has been
installed
Toggle these buttons to set the
dilution factor.
This is the number by which the
analyzer will multiply the CO
concentrations of the gas passing
through the reaction cell.
Once the above settings have been entered, the instrument needs to be recalibrated using one of
102
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 (Section 4.8.6).
2. Select the range: Use the procedures in Sections 4.8.2 – 4.8.5. 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 10 ppm gas
can be used to calibrate a 1000 ppm sample gas if the span gas is not routed
through the dilution system. On the other hand, if a 1000 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 diluting
gas and 1 part of sample gas):
SAMPLE
< TST TST > CAL
SETUP C.3
CFG DAS RNGE
SETUP C.3
MODE SET UNIT
SETUP C.3
0 0
2
SETUP C.3
0 0
The analyzer multiplies the measured gas concentrations with this dilution factor
and displays the result.
the methods discussed in Section 5.
Teledyne API Model T360/T360M Operation Manual
RANGE = 500.000 PPM CO2 =X.XXX
PRIMARY SETUP MENU
PASS CLK MORE
RANGE CONTROL MENU
DIL
DIL FACTOR: 1.0 GAIN
0 1 .0 ENTR
DIL FACTOR: 20.0 GAIN
2 0 .0 ENTR
NOTE
SETUP
EXIT
EXIT
EXIT ignores the
new setting.
ENTR accepts the
new setting.
EXIT
EXIT
07272B DCN6552