Yokogawa Button Operated MV2000 - Manual (Page 50)

7-2
SM MV1000-01E
7.2 Recommended Replacement Periods for Worn
Parts
To preserve the reliability of the MV and to use the MV in a good condition for an
extended time, it is recommended that periodic replacements be made on parts. The
replacement parts may change to accommodate preventive maintenance over extended
time. Be sure to check with your nearest YOKOGAWA dealer.
The following table shows the recommended replacement period for expendable parts.
The replacement period shown here applies when the MV is used under standard
operating conditions. For the actual replacement period, consider the actual conditions
of use. Replacement of parts will be carried out by a YOKOGAWA engineer or an
engineer certified by YOKOGAWA. Contact your nearest YOKOGAWA dealer when such
replacement is necessary.
MV1000
Item
Replacement
period
Name Part No.
Quantity
Used
Notes
LCD 5 years Bezel Assembly B8805BA 1
Battery 10 years Battery Assembly B9900BR 1
Aluminum
electrolytic
capacitor
5 years* Power supply Assembly – 1
5 years* AD Assembly Depends on the model
* Replacement Period at the Upper Limit of the Normal Operating Temperature (40°C)
The replacement period varies depending on the temperature in which the instrument
is operated, and the instrument’s specifications. If the instrument is used in a 30°C
environment, it may be operational for 10 years or more.
MV2000
Item
Replacement
period
Name Part No.
Quantity
Used
Notes
LCD 5 years Bezel Assembly
B8806BA 1 For English
B8806BB 1 For Japanese
Battery 10 years Battery Assembly B9900BR 1
Aluminum
electrolytic
capacitor
5 years* Power supply Assembly – 1
5 years* AD Assembly Depends on the model
* Replacement Period at the Upper Limit of the Normal Operating Temperature (40°C)
The replacement period varies depending on the temperature in which the instrument
is operated, and the instrument’s specifications. If the instrument is used in a 30°C
environment, it may be operational for 10 years or more.
Note
• The LCD should be replaced when the brightness of the LCD is reduced by half its original
brightness. The brighter the display, the shorter the “half-life” of the LCD. Reductions in
brightness vary depending on operating conditions, and is a subjective determination. The
actual replacement period should be determined based on these considerations.
• The LCD screen may start to yellow over time. The brighter the screen, the faster such
changes may progress.