Thermo Fisher Scientific Micro-Tech 9101/9201 Reference Manual, Rev J A-45
“Channel 2,” bottom connector has jumpers J19 and J20 that allow
selection of either external excitation sense (6-wire LC hook-up) or
internal excitation sense (4-wire LC hook-up).
One of four different interrupt channels can be selected from J1 jumper.
J1 is board interrupt 1-2 this is a factory installed jumper, do not move.
Load-Cell Sense Jumper Defaults
Jumper
Four-Wire Load-Cell
(internal sense)
Six-Wire Load-Cell
(external sense)
J14 1-2 2-3
J15 1-2 2-3
J19 1-2 2-3
J20 1-2 2-3
Factory option jumpers W2 and W3 allow the A/D converters to operate
at either 10 conversions per second or at 80 conversions per second,
which may be useful for “loss-in-weight” applications. The standard
board is hard-wired for 10 conversions per second. Altering the W2/W3
option jumpers allows software selection of the desired conversion rate,
so do not change.
Jumper Locations
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