Inspection And Cleaning - Omron NT31 Operation Manuals

Inspection and Cleaning

11-4 Inspection and Cleaning
Cleaning Method
Notice
Inspection Method
636
Clean and inspect the NT31/NT31C regularly to ensure that it is always used in its
optimum condition.
If the display is dirty the screen is difficult to see. Clean the screen from time to
time as follows.
- In daily cleaning, wipe the display with a soft dry cloth. If the soiling is particu-
larly heavy, attempting to remove it by wiping with a dry cloth may damage the
front sheet of the unit. In this case, wipe with a damp cloth.
- If the soiling cannot be removed with a dry cloth, wet the cloth with diluted neu-
tral detergent (2%), wring it out well and wipe the display with it.
- If rubber or vinyl products, tape, etc., are left stuck to the display for long peri-
ods they will cause staining. If such items are stuck to the display, remove
them during cleaning.
Never use volatile solvents such as benzene or thinners, or chemical dusters.
In normal environments, inspect the NT31/NT31C at intervals of between 6
months and a year. In environments that are extremely hot and humid, or very
dusty environments, shorten the inspection interval.
S Items required for the inspection
Prepare the following items before starting the inspection.
- Screwdrivers (Philips, flat head)
- Tester (or digital voltmeter)
- Industrial alcohol
- 100% cotton cloth
- Hygrometer (required in some cases)
- Thermometer (required in some cases)
- Synchroscope (required in some cases)
- Pen-writing oscilloscope (required in some cases)
Section 11-4