Teledyne gfc 7000ta operation manual Calibration Mode, To view and clear warning messages

Operating Instructions Model GFC7000TA Carbon Dioxide Analyzer

To view and clear warning messages:

TEST deactivates warning

messages

NOTE:

If the warning message persists after several attempts to clear it, the message may indicate a real problem and not an artifact of the warm-up period

SAMPLE	SYSTEM RESET		CO2 = 0.00
TEST	CAL	MSG	CLR	SETUP
SAMPLE		RANGE=500.000 PPM	CO2 = 0.00
< TST TST > CAL		MSG	CLR	SETUP
SAMPLE		SYSTEM RESET	CO2 = 0.00
TEST	CAL	MSG	CLR	SETUP

MSG displays warning messages.

Press CLR to clear the current

message.

If more than one warning is active, the

next message will take its place

Once the last warning has been cleared, the analyzer returns to SAMPLE mode

Figure 6-3: Viewing and Clearing GFC 7000TA WARNING Messages

6.3. Calibration Mode

Pressing the CAL key switches the GFC 7000TA into multi-point calibration mode. In this mode, the user can calibrate the instrument or check the instruments calibration with the use of calibrated zero or span gases.

If the instrument includes either the zero/span valve option or IZS option, the display will also include CALZ and CALS keys. Pressing either of these keys also puts the instrument into multipoint calibration mode.

∙The CALZ key is used to initiate a calibration of the zero point.

∙The CALS key is used to calibrate the span point of the analyzer. It is recommended that this span calibration is performed at 90% of full scale of the analyzer’s currently selected reporting range.

Because of their critical importance and complexity, calibration operations are described in detail in Section 7 of this manual. For more information concerning the zero/span, zero/span and IZS valve options, See Section 5.4.

Teledyne Analytical Instruments 68