User Manual

ASR-2000 Series User Manual
108
EXT GAIN - AC+DC-EXT and AC-EXT mode
Overview
Select AC+DC-EXT or AC-EXT mode to use
ASR-2000 as an amplifier specifically for signal
input from the external signal input port on the
rear panel. The impedance of input is 1MΩ,
whilst the frequency range of input is from DC
to 999.9 Hz.
External Input
Gain Range
External Input Gain
Setting
100V Range
200V Range
Setting Range
0.0 to 250.0
0.0 to 500.0
Resolution
0.1
0.1
Initial Value
100.0
200.0
Equation
Output voltage (V) =
External input signal (V) x Gain (V/V)
Diagram
External Input
Signal
Output
ADC
Note
 It is suggested to use an input voltage of ±2.5
V or less to prevent from clipping of the
output voltage.
 In addition, never allow an input voltage to pass
±5.5V to avoid issues from the input block.