Teledyne gfc 7000ta operation manual Flow Calibration, Signal I / O Next

Operating Instructions Model GFC7000TA Carbon Dioxide Analyzer

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:

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
					Exit at
					any time
SETUP X.X	SECONDARY SETUP MENU				to return
					to main
COMM VARS DIAG			EXIT		the
					SETUP
					menu
SETUP X.X	ENTER DIAG PASS: 818
8 1 8		ENTR EXIT
DIAG	SIGNAL I / O
NEXT		ENTR EXIT Adjust these values until
				the	displayed flow rate
			equals the flow rate being
					measured by the
Repeat Pressing NEXT until . . .			independent flow meter.

Adjust these values until the displayed flow rate equals the flow rate being measured by the independent flow meter.

DIAG	FLOW CALIBRATION
PREV NEXT		ENTR EXIT
DIAG FCAL ACTUAL FLOW: 654 CC / M
0 6 5	4	ENTR EXIT

Exit returns to the previous menu

ENTR accepts the

new value and returns to the previous menu EXIT ignores the new value and

returns to the

previous menu

Teledyne Analytical Instruments 139