Verifying/Replacing The Line Fuse; Accessing The Line Fuse; Line Fuse Ratings - Data I/O 298 Manual

2.4.2 VERIFYING/REPLACING THE LINE FUSE
The line fuse is located behind the same door that covers
the voltage wheel selector. After you determine that your
298 is set to the proper operating voltage, perform the
following procedure to verify that the line fuse is correct
and intact. In the event that the fuse is blown, replace it
with one of the correct size. Procedure steps are illustrated
in figure 2.4.
1 . Gently pry open the door that covers the fuse holder
using a flat-blade screwdriver (figure 2-4a).
NOTE
There are two fuse receptacles; only the
one on the bottom is connected to the
programmer's circuitry. The top
receptacle is a spare fuse tray. See the
next subsection (2.4.3) for more
information on this spare tray.
2. Pull the bottom fuse holder out of its slot (figure 2-4b).
3. Check to determine whether the fuse is intact. If it is
intact, proceed to step 4. If it is blown, install a new
fuse. See table 2-1 for line fuse ratings.
CAUTION
For continued protection against the
possibility of fire, replace only with a
fuse of specified voltage, current and
type ratings.
Table 2-1. Line Fuse Ratings
Operating Line Fuse Rating Data 1/0
Voltage Current Voltage Type Part Number
100 2.5 amp 'BJV slow-blowal
41~1240-001
120 2.5 amp 'BJV slow-blowal
41~
1240-001
220 1 amp 200V slow-blow bl
41~
1571-001
240 1 amp 200V slow-blow bl 41~ 1571-001
(alUttlefuse type "313," Bussman type "MDA"
(blUttlefuse type "218," Bussman type "GDC," Schurter
type "001-2504."
4. Insert the fuse holder into its slot so that the arrow on
the fuse holder points in the same direction as the
arrows on the door (figure 2-4c).
5. Snap the door closed.
2.4.3 SPARE LINE FUSE TRAY
All 298 programmers are equipped with two line fuse trays
(see figure 2-4 (b)). The white fuse tray accepts 1 /4 x 1
1I4 inch fuses; the black tray accepts 5 x 20 millimeter
fuses, commonly available in Europe. Only the right-hand
fuse receptacle is connected to the programmer's circuitry.
2-4
10-990-0013
2-4a) Pry open door that covers
fuse holder using a
flat-blade screwdriver.
2-4b) Pull out fuse holder. The
bottom fuse holder is
used, the top fuse
holder is not.
2-4c) Reinsert fuse holder so
that arrow on fuse
holder points in same
direction as arrows on
door.
Figure 2-4. Accessing the Line Fuse ·