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DM330 Series - Magnetostrictive Level System User's Manual
2.7.2
Intrinsically Safe Barriers
2.7.3
Intrinsically Safe Power Supply
Select either a single or dual channel barrier.
Single channel barrier can only be used if meter (resistive load)
is placed in the positive end of loop and meter has a differential
input. Refer to Figure 2-16.
If the meter (resistive load) must have one side connected to
ground, then a dual channel barrier must be used. Refer to
Figure 2-17.
The I.S. power supply should have at least a 24 VDC output,
and no more than 1000 feet of 16 gauge wire in the loop.
22
Figure 2-14
Single Channel Barrier
Figure 2-15
Dual Channel Barrier
DM330
DM330
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