Setra System Model SRMD - Manual (Page 4)

4.0 CALIBRATION
Power the display(s). If you have the Setra humidity and temperature sen-
sor, then the displays are already calibrated and ready to use. If you are using
other sensors, then you must calibrate the displays output signal to the engi-
neering units, unless your sensors are 0 to 5 or 0 to 10 V output and display 0
to 100 (factory default setting).
Calibration requires a calibrated Voltage Source to simulate the sensor analog
output.
Set range dip switch to either 5 V (for a 0 to 5 V input ) or 10 V (for a 0 to 10 V
input) position.
The factory default calibration of the display is 0 to 5 VDC field sensor input,
which will produce a display reading of 0.0 at 0 V and 100.0 at 5 V. Also, if the
range jumper switch is set to the 10 V input position, then the calibration will
be 0.0 to 0 V and 100.0 at 10 V.
Fig. 4
Input Wiring