Appendix D -- Auxiliary A/D Input Characteristics--Overview
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Appendix D -- Auxiliary A/D Input Characteristics
Overview
The Controller board used in the Gamry Instruments Reference 3000 Potentiostat has jumpers or switches that
configure the input circuitry used for the Aux A/D function. Early units have jumpers and later units have
CMOS switches set using software. The changeover occurred in 2009.
We usually ask that you return your Reference 3000 to Gamry Instruments if you need to change the hardware
jumpers. This information is provided so a qualified service technician can change the Aux A/D input jumpers
in the field.
The CMOS switches are set using a function call in an Explain script. Once the CMOS switches are set, they
remain in the selected position until another script resets them. Note that the settings will return to their default
values on reset or Power Up of the Reference 3000.
Call or Email your local Gamry representative if you need to change your Auxiliary A/D input characteristics and
you are uncertain which type of control board you have.
Jumper Identification
The three jumpers that configure the Aux A/D input are in a cluster located at the upper right side of the
Controller Card. See the figure below for jumper locations.
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