Issue/Rev. 0.3 (8/02)
MN02004 • 3
Section 2 – Service
Removal and Replacement of Pick-Up
Coil With Meter in Product Line
1. Make certain power has been disconnected to
meter.
2. Remove cover from junction box by turning
counterclockwise.
3. If a preamplifier is being used, disconnect
pick-up coil wires from Terminals 6 and 7 of
PA-6 Preamplifier.
4. Remove junction box from meter by turning
counterclockwise, Figure 1.
Figure 1
5. Remove pick-up coil from meter by turning
counterclockwise, Figure 2.
6. Check resistance of coil (nominal dc coil resistance
-1,020 Ω) to determine if coil is faulty.
7. For reassembly, reverse procedure.
Figure 2
Caution:
Tighten pick-up coil finger tight. Over tightening
will result in damage to coil.
Removal and Replacement of Preamplifier
With Meter in Product Line
1. Remove pick-up coil as outlined above, Steps 1
through 5.
2. For PA-6 removal, remove #6-32 round head
screw, Figures 3 and 4, to permit removal of
metal clip, Figure 5.
Figure 3
Figure 4
Figure 5
