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25 Model 7500 Instruction Manual
Teledyne Analytical Instruments
5. DISPLAY AND OPERATION PANEL
This section describes the display and operation panel of the gas analyzer. It also explains the name and
description of function on the operation panel. See Fig. 5-1.
5.1 Name and description of operation panel
• Display: The measurement screen and the setting items are displayed.
• Controls: The conguration is as shown below.
Name Description Name Description
1. MODE key Used to switch the mode. 5. ESC key Used to return to a previous screen
or cancel the setting midway.
2. SIDE key Used to change the selected
item (by moving the cursor) and
numeral digit.
6. ENT key Used for conrmation of selected
items or values, and for execution
of calibration.
3. UP key Used to change the selected
item (by moving the cursor) and
to increase numeral value.
7. ZERO key Used for zero calibration.
4. DOWN key Used to change the selected
item (by moving the cursor) and
to decrease numeral value.
8. SPAN key Used for span calibration.
Fig. 5-1 Name and description of operation display and panel
Note: The switch for back light is used for turning ON/OFF the back light of display. The life time of back
light is 50,000 hours. Please turn OFF the switch when indicator is not necessary, so the life time will be
longer.