Instructions

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.