Siemens SITRANS RD300 Operating Instructions Manual page 92

SIT SITRANS RD300RANS RD300
8. Set the display for the high input calibration, in the same way as it
was set for the low input calibration, typically 20.000 mA.
The graphic above shows the calibration of the current input. The
voltage input is calibrated in a similar way.
Tips:

Low and high input signals can be any valid values within the
range of the meter.

Observe minimum input span requirements between input 1
and input 2.

Low input should be less than high input signal.
Page 86 SITRANS RD300 – OPERATING INSTRUCTIONS A5E31917845