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Replace the fuse(s) as follows, refer to Figures 5 and 6:
1. Remove the test leads and turn the calibrator off.
2. Remove the battery door.
3. Remove the three Phillips-head screws from the case bottom and turn the case over.
4. Gently lift the top cover from the end nearest the input jacks until it unsnaps from the
bottom cover.
5. Replace the fuse(s) with a 0.125 A 250 V fast fuse, Littelfuse
F1 and F2 are the same type on the 715 and 712 V1.2.
6. (712, 714, and 715 only)
Fit the top and bottom covers together, engaging the two snaps. Make sure that the
gasket is properly seated. Reinstall the three screws.
(717 and 718 only)
Carefully fit the case top and circuit board assembly together, making sure that the O-
ring is properly seated between the pressure sensor and the pressure fitting on the
case top. Fit the case bottom onto the case top, engaging the two snaps near the
display end of the case. Reinstall the three screws.
7. Replace the battery door.
Figure 5. Replacing the Fuses (715 shown)
F2
F1
Process Calibrators
Basic Maintenance
®
type 2AG.
Snaps
it08f.eps
23
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