Marathon Computer UNIPRO V3.5 - Manual (Page 173)

MMI Product Documentation
Unipro 3.5 Process Control 1 Aug. 1997
To Zero the board
calibration
Turn off the power
at the simulator.
Short the input by putting a banana plug
shorting block into the simulator. Short the
jumper ( switch) wired into 17 and 18 to
calibration mode.
This will produce some value in the PROCESS
window and Z-A in the SET window.
Use the left and right arrow keys to change the
adjustment from coarse to fine in the PROCESS
window, and the up and down arrow keys to
change the value. Adjust the PROCESS window
value to zero (0), or as close as possible.
Press the [Enter] key twice to store the value.
Press the [Display] key to change the SET
window to Z-B or Z-C and repeat steps 4 and 5
for inputs B and C.
After all the values are stored, press the [Display] key to return
the SET window to Z-A and press the [Enter] key to change it
to S-A (span).
To set the span
Put the meter leads into the banana plug to
measure mV (300----).
Remove the jumper block from the simulator.
Using a meter to check your input voltage on the
O2 side, enter 1.4 or 1.5 mV from the simulator,
and turn ON the simulator.
Set the span values at 1400 or 1500 (depending
on what the simulator generated) using the
arrow keys to adjust the values.
Press the [Enter] key twice to save the values and
press the [Display] key to change the input type.
Repeat steps 1-5 for each input (A, B, and C),
pressing [Enter] twice to save the values each