Yokogawa Data Acquisition with PID Control CX2000 - Manual (Page 348)

13-4
IM 04L31A01-01E
13.3 Replacement of Parts
Recommended Replacement Period
To preserve the reliability of the CX2000 and to use the CX2000 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 CX2000 is used under standard
operating conditions. For the actual replacement period, consider the actual conditions
of use.
Replacements will be carried out by a YOKOGAWA engineer or an engineer certified by
YOKOGAWA. When replacement is required, contact your nearest YOKOGAWA dealer.
Item Replacement Name Specifications Quantity Used
Period
LCD 5 years Backlight module 1
Battery 10 years Lithium battery 1
Rubber strip 5 years Dust and water proof Panel attachment section 1 of each
rubber strip
Operation cover
Floppy disk drive 5 years 1
Zip drive 5 years 1
Relay 100,000 times Control relay* 1 2 per control output
terminal block (for 2
loops)
PWB assembly 5 years Power supply ASSY* 2 1
5 years Sub power supply ASSY* 2 1
5 years AD ASSY* 2 Depends on the
specifications made at
the time of purchase
*1 Life time under rated load of relay contact. The replacment period varies depending on the load
conditions and frequency of use.
* 2 Replacement Period at the Upper Limit of the Normal Operating Temperature (50°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 replacement period indicates the half life of the brightness when the brightness
is set to the factory default setting. The half life is shortened as the brightness is set
higher. The deterioration of brightness varies depending on the condition of use, and its
determination is subjective. Consider these facts for determining the actual replacement
period.
• The color of the LCD may become yellowish as time elapses. The discoloration tends to
progress faster as the brightness is set higher.
Replacement of the Terminal Block
Replacements of the terminal block will be carried out by a YOKOGAWA engineer or an
engineer certified by YOKOGAWA. When replacement is required, contact your nearest
YOKOGAWA dealer.