CP-3800 GC Operator’s Manual
79
The 1079 is a pressure-controlled injector; thus the column flow decreases
with increasing column temperature if the pressure remains constant. EFC
method parameters and status are accessed via the FLOW/PRESSURE key
on the 3800 keyboard.
The Type 1 EFC status field displays the actual column head pressure (in the
units chosen in Setup), calculated column flow rate, calculated column linear
velocity, and the split ratio. The following screen is an example of a type 1
EFC method.
The example shown below is a constant pressure method.
ACTIVE
METHOD
EDIT
METHOD
CTRL
RUN
TIME
END
TIME
Method 1
Method 1
0.00
20.00
Col Press (psi):10.0 Col Flow (mL/min):2.0
Linear Vel(cm/sec):35 Total Flow (mL/min):25
Split Ratio: OFF
FRONT EFC Type 1 Page 1 of 2
Step
Pressure (psi) Rate (psi/min) Hold (min)
Total (min)
Initial
10.0
-
2.00
2.00
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