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Operating Instructions Model GFC7000TA Carbon Dioxide Analyzer
Teledyne Analytical Instruments 139
6.13.8. Flow Calibration
The flow calibration allows the user to adjust the values of the sample flow rates as they are displayed on
the front panel and reported through COM ports to match the actual flow rate measured at the sample
inlet. This does not change the hardware measurement of the flow sensors, only the software calculated
values.
To carry out this adjustment, connect an external, sufficiently accurate flow meter to the sample inlet (see
Section 11 for more details). Once the flow meter is attached and is measuring actual gas flow, press:
Adjust these values
until the displayed
flow rate equals the
flow rate being
measured by the
independent flow
meter.
SAMPLE RANGE = 500.000 PPM CO2 =X.XXX
< TST TST > CAL SETUP
SETUP X.X
PRIMARY SETUP MENU
CFG ACAL DAS RNGE PASS CLK MORE EXIT
SETUP X.X SECONDARY SETUP MENU
COMM VARS DIAG EXIT
Exit at
any time
to return
to main
the
SETUP
menu
DIAG SIGNAL I / O
NEXT ENTR EXIT
Exit returns
to the
previous menu
Repeat Pressing NEXT until . . .
DIAG FLOW CALIBRATION
PREV NEXT ENTR EXIT
DIAG FCAL
A
CTUAL FLOW: 654 CC / M
0 6 5 4 ENTR EXIT
ENTR accepts the
new value and
returns to the
previous menu
EXIT ignores the
new value and
returns to the
previous menu
Adjust these values until
the displayed flow rate
equals the flow rate being
measured by the
independent flow meter.
SETUP X.X ENTER DIAG PASS: 818
8 1 8 ENTR EXIT