Extech Instruments 7470 Operation Manual page 37

If the Fail stop is off and a failure occurs during the test sequence, the RESET button
will light and a short alarm will sound but the sequence will continue to the end. At the
end of the test sequence, the RESET button will light and alarm will sound indicating
failure during the sequence. Pressing the RESET button will silence the alarm and
reset the instrument.
A display of the first eight connected memories PASS/FAIL results on items tested is
provided at the conclusion of the last connected memory.
The display will show the results of the eight memories as follows:
Test
Mem 22 23 24 25 26 27 28 29
The pass-fail status is indicated by the letter F (Fail) or P (Pass).
Toggle the Fail Stop function or press the SETUP key to forward to the LCD Contrast
selection. Press the EXIT key to return to the operation mode. The program will
store the Fail Stop setting automatically.
4.1.3. LCD Contrast
Press the SETUP key to advance the menu to the Contrast parameter. The display
will show:
Contrast
Range: 1 - 9
Use the Numeric keys to enter the LCD Contrast level, then press the ENTER key.
The program will change the LCD Contrast immediately when the ENTER key is
pressed, so the setting can be viewed.
The LCD Contrast level may be adjusted from 1 - 9. Level 1 is the lowest contrast and
level 9 is the highest contrast.
Change the LCD Contrast again or press the SETUP key to advance to the Alarm
Volume setting. Press the EXIT key to return to the operation mode. The program
will store the Contrast setting automatically.
4.1.4. Alarm Volume
Press the SETUP key to advance the menu to the Volume parameter. The display will
show:
Alarm
0 - 9
The Audible Alarm Volume range is from 0 - 9. Level 0 is used to disable the Audible
Alarm. Level 1 is the lowest volume and level 9 is the loudest.
P F P F P F P F
=
9=High
= X
0=OFF 9=High
X
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