7-10
- .
It may be necessary to replace the fuses in the 2700 SELECT. New fuses may be purchased
from YSI or obtained from many local electrical component suppliers. Be sure to obtain the
correct fuse rating as indicated below.
UNPLUG THE INSTRUMENT FROM THE MAINS SUPPLY.
Using a small screw driver, pry open the fuse holder on the power receptacle (see Figure 7.4).
110-120V Selected
220-240V Selected
Figure 7.5
Fuse Replacement
Fuse Requirements
Fuse Type: 110-120 VAC Operation -- 1 Amp (YSI #062443, Fast acting)
3AG, 250 volt, 0.25D x 1.25L inches
For Europe and UK use fuse type:
220-240 VAC Operation -- 1/2 Amp (YSI #019722)
Anti-surge(T), 250 volt, 5mm x 20mm (L), IEC127 & BS4265
Install new fuses in place of the old ones and return the fuse holder to the power receptacle. Be
certain the correct voltage is selected. The arrowhead on the power selector must be pointing to
the small rectangle on the housing, as shown (inset).
With the power switch in the off (O) position, plug the power cord into the instrument and then
into the power mains. Refer to Section 2.5 Power Up, to confirm correct power up response.
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