3. PRECAUTIONS
3-1. Line voltage selection
This instrument must be operated with the correct line voltage selector switch setting
and the correct line fuse for the line voltage selected to prevent damage.
The instrument operates from either a 90V to 132V or 198V to 250V line source.
Before line voltage is applied to the instrument , make sure the line voltage selector
switch is set correctly.
In the case of the line voltage selector switch selected , must be operated to the
correct line fuse.
※ This instrument is theⅡ of category
To change the line voltage selection
1. Make sure the instrument is disconnected from the power source.
2. Pull out the line voltage selector switch on the bottom panel.
Select the arrow mark position of the switch from Table 3-1.
Select the arrow mark to the desired position and plug it in.
3. Pull out the line fuse holder containing the fuse for overload protection.
Replace the fuse in the holder with the correct fuse from table3-1 & plug it in.
Table 3-1. Line voltage Selection & Fuse Ratings
AC 90 ~ 110
100V
AC 108~ 132
120V
AC 198~ 242
220V
AC 207~ 250
230V
3-2. INSTALLATION & HANDLING PRECAUTIONS
When placing the power supply in service at your workplace,observe the following
precautions for best instrument performance and longest service life.
1. Avoid placing this instrument in an extremely hot and cold place.
Specifically, don't leave this instrument in a close car,exposed to sunlight in
midsummer, or next to a space heater.
2. Don't use this instrument immediately after bring it in from the cold.
Allow time for it to warm to room temperature. Similary don't move it from a
warm place to a very cold place,as condensation might impair its operation.
3. Do not expose the instrument to wet or dusty enviroments.
[4]
Line Voltage
Arrow Mark Position
Fuse Ratings (250V)
GP-505
GP-305/503
GP-3010
T8A
T4A
T5A
T2.5A
T6.3A
T3.15A
