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B-1

APPENDIX B. DIFFERENCES BETWEEN THE AM416 AND THE AM32

The AM416 differs from Campbell Scientific's

AM32 multiplexer in the following ways:

1. The AM416 switches sixteen sets of four

lines at a time (4 x 16). The AM32 switches

thirty-two sets of two lines at a time (2 x 32).

2. The AM416 is packaged in an aluminum

case that should decrease temperature

gradients across the multiplexer terminal

strips.

3. The AM416 is smaller.

4. The AM416 contains terminals and circuitry

for sensor shield wires. This circuitry allows

sensor shield wires to be routed through the

multiplexer and grounded at the datalogger.

5. The packaging of the AM416 allows for

strain relief of lead wires on the

multiplexer's case.

6. The AM416 contains diodes between

shields and power ground for transient

protection.

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Campbell AM416 Bedienerhandbuch Seite 29