YOKOGAWA UM350 User Manual

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<Toc> <4. Troubleshooting and Maintenance>
IM 05F01D02-41E 1st Edition : May 31,2000-00
4.2.4 Replacing Parts with a Limited Service Life
The following UM350/UM330 parts have a limited service life.
The service life given in the table assume that the controller is used under normal operating
conditions.
Part
Aluminum electrolytic condenser
About 10 years (rated)
Service life
EEPROM About 100,000 times of writings
Alarm 4 output relays About 100,000 more ON-OFF operations or with resistance load

YOKOGAWA UM350 Specifications

General

Brand	YOKOGAWA
Model	UM350
Category	Touch Panel
Language	English