Marathon Computer UNIPRO V3.5 - Manual (Page 14)

Marathon Monitors Inc
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Unipro 3.5 Process Control 1 Aug. 1997
Analog Inputs
The UNIPRO allows for three analog inputs with their individual
functions determined by "daughter board" located on the analog
input board inside the unit. The standard connection, at TBD, will
have the first input as a thermocouple, the second for the oxygen
probe, and the third optionally used to input voltage or milliamp
signals.
Analog Outputs
Two, separate, isolated analog outputs are provided on TBD and
can be selected as 4-20 mV (for maximum accuracy, see
Specifications for further details) or 0-10 V output through DIP
switch settings on the analog output board. Additionally, outputs
can be calibrated by placing a jumper on the two terminals supplied.
DIP Switch Setup
The user may use the UNIPRO in a multi-instrument system by
giving the instrument a unique HOST address, specified by using
the DIP switches on the Interface Board inside the UNIPRO
To get to the DIP switches, loosen the black knurled knob on the
front panel by turning in a counterclockwise direction. Carefully
remove the front panel but DO NOT remove the ribbon cable
connecting the front panel to the Interface Board. Safely support
the front panel near the instrument. Adjust the DIP switches per
Section 2.16 for the desired operating mode. When switch
adjustment is complete, replace the front panel to prevent
contamination.