Yokogawa Value Series FX1000 - Manual (Page 246)

11-1
IM 04L21B01-01EN
Maintenance
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App
Index
11.1 Periodic Inspection
Check the operation periodically to keep the FX in good working order.
Perform the following inspections, and then contact your YOKOGAWA dealer if
necessary.
• Is the display and storage functioning properly?
If not, see chapter 10, “Troubleshooting.”
• Has the brightness of the LCD backlight deteriorated?
Service Life of Consumable Parts
The service lives for parts that wear down are shown in the following table.
These service lives are estimated values that have been calculated assuming that the
product is used under standard operating conditions. These values are not guaranteed.
Item Replacement Period Part Name
LCD 8 years LCD
Battery 10 years Sub board
Rubber packing for
dust and water protection
5 years Packing
Aluminum electrolytic
capacitor
5 years* Power supply assembly
5 years* AD assembly
* The replacement period when the FX is used at the upper limit of the normal operating
temperature (50°C) varies depending on the usage environment temperature and the FX
specifications. When the usage environment temperature is 30°C, the replacement period
may be 10 years or more.
Note
• The service life of the LCD indicates the point in time when the LCD brightness is half of its
initial value. The brighter that you set the LCD, the shorter its replacement period becomes.
The decrease in the LCD brightness varies depending on the usage conditions, and the
judgment of the LCD’s brightness is subjective.
• With the passage of time, the LCD may be tinged yellow. The brighter that you set the LCD,
the faster it will discolor.
• If the rubber packing has come loose, attach it so that the protrusions are on the bottom
as shown in the figure below. Attaching it upside down will hamper the dust proofing and
waterproofing. Attach it firmly, depressing the rib lightly with a finger.
Chapter 11 Maintenance