Instrument Controls - Extech Instruments 7470 Operation Manual

3.2 Instrument Controls

3.2.1 Front Panel Controls
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1. POWER SWITCH: Rocker style power switch with international ON (  ) and OFF (0)
markings.
2. RESET BUTTON: Momentary contact switch used to reset the instrument. If a
failure condition occurs during a test, you will need to reset the system to shut off
the alarm and signal the system that you are aware of a failure condition. The
reset button must be pressed before you can proceed to the next test or change any
of the set-up parameters. This switch also serves as an abort signal to stop any
test in progress controlled by the High Withstand Voltage Tester.
3. TEST BUTTON: Momentary contact switch used to start tests. Press the green
button to activate the test that is set up in the test buffer shown on the display.
4. MEMORY: Use this key to select one of the 50 memories to modify or run stored
test parameters.
5. LOCK/LOCAL: Use this key to select key lockout mode. A password may be used
when setup in the calibration mode. Use this key when you wish to go from the
Remote operation of the instrument to the Local mode.
6. UP-DOWN ARROW KEYS: Use these keys to enter and move through the function
parameter menu for test parameter setup.
7. SETUP: Use this key to enter the setup menu and view or change the display
contrast, alarm volume, and PLC remote settings.
8. EXIT: Use this key to exit any menu or to clear an unwanted entry in a parameter
field.
9. LCD DISPLAY: The 2x20-character display indicates test function, memory location,
test parameter and failure type as well as test measurements during a test.
10. DATA ENTRY KEYS:
the ENTER key.
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Use these keys to input numeric parameters followed by
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