Yokogawa DR240 - Manual (Page 234)

13-1 IM DR232-01E
Trouble-shooting and Maintenance
13
13.1 Periodic Maintenance and Recommended Parts
Replacement Period
Periodic maintenance
Check the recorder’s operation periodically to keep it in good operating condition. Especially
check the following items and replace consumable parts as needed. Do not use a lubricant for
periodic maintenance.
• Are display and recording functioning properly?
• Are there blurred or broken sections of the recording or printout characters?
When replacing the ribbon cassette, refer to Section 3.4, “Installing the Chart and Ribbon
Cassette.”
• Is the chart paper feeding properly? When replacing the ribbon cassette, see Section 3.4,
“Installing the Chart and Ribbon Cassette.”
• Is there enough chart paper left?
• The remaining chart paper length is printed in the left margin of the chart at 20-cm intervals.
• When replacing the chart paper, see Section 3.4, “Installing the Chart and Ribbon Cassette.”
If problems develop with the recorder, see Section 13.3, “Troubleshooting.”
Recommended parts replacement period
It is necessary that recorder parts be replaced periodically for use of the recorder over an extended
period of time. The table below shows the recommended parts replacement periods for specific
parts that wear out. These replacement periods indicate where the recorders have been used under
normal operating conditions. When replacing parts, refer to these replacement periods taking the
actual operating conditions into consideration. When replacing parts other than the chart paper,
ribbon cassette, or fuse, please contact your nearest Sales representative. Addresses may be found
on the back cover of this manual.
Part Part number Replacement Description
period (in years)
Display B9233KJ 3.4 30,000 hours
Fuse A1350EF 2 For AC power supply (2.5A, time-lag fuse)
Fuse B9573TZ 10 For printer board (500 mA)
Motor B9233EA 5 For chart paper
Motor (DR232) B9232CM 5 For carriage (with a screw shaft)
Motor (DR242) B9233EF 5 For carriage (with a screw shaft)
Motor B9233GR 3 For ribbon cassette
Lithium battery B9234XZ 10 For backup of information that has been set
Fluorescent lamp B9628ZN 3,4 Internal assembly lighting (30,000 hours)
Printer head B9233HZ 3 1.5
× 10 8 dots (depend on the set conditions)
Carriage B9233GA 5 Depends on the set conditions.