Teledyne 7300A, Operating Instructions Manual

Page: 41 / 85

Infrared Gas Analyzer Operation 4
4-5 Teledyne Analytical Instruments
15 OFFSET: This function helps set a non-zero offset to the zero
calibration. It is useful when zeroing the analyzer with a
background gas that is different than the sample.
16 CAL-INDEPD: Not generally accessed buy the end user.
Forces analyzer to be in independent calibration mode.
17 STANDBY : Remove power to outputs and displays, but
maintain power to internal circuitry.
Any function can be selected at any time. Just scroll through the MAIN
MENU with the DOWN/UP keys to the appropriate function, and ENTER it.
The analyzer will immediately start that function, unless password restrictions
have been assigned. (Password assignment is explained further on.)
All of these functions are described in greater detail in the procedures
starting in section 4.3. The VFD screen texts used to illustrate the procedures
are reproduced in a
Monospaced
type style.
4.2.2 Data Entry
4.2.2.1 ENTER
When the selected option is a function on the Main Menu screen, the
function name appears between the arrows on the screen. You activate the
function by the ENTER key.
When the selected option is a function or subfunction, ENTER moves
the display to the VFD screen for that function or subfunction.
When the selected option is a modifiable item, theUP or DOWN keys
can be used to increment or decrement that modifiable item to the value or action
you want. Then you ENTER the item, which also puts you into the next field to
continue programming.
When the last field is entered, ENTER takes you to the next screen in the
process, or if the process is completed, ENTER takes you back to the ANA-
LYZE screen.
4.2.2.2 ESCAPE
Pressing the ESCAPE key takes you back to the previous screen.