PA-2S User Manual
___________________________________________________________________________
___________________________________________________________________________
version 1.5
page 7
3. PA-2S Amplifier Module
3.1. PA-2S
Components
The following items are shipped with the PA-2S system:
Amplifier module for the EPMS-07 system
User manual
3.2. System
Description
The PA-2S amplifier is a plug-in unit for the npi EPMS-07 modular system. It is designed to
amplify small bio-electrical signals. Two channels are available and can be used
independently from each other in AC or DC mode. DC offsets can be compensated either by
the using the OFFSET controls (coarse and fine) or they can be eliminated using the AC
position of the input switches. The inputs and outputs are BNC connectors.
Input and output configurations are selectable. The PA-2S can be connected internally to
other modules of the EPMS-07 system, e.g. to one channel of an EXT-08, to a DPA-2F or to
an INT-20M module. Both INPUT and OUTPUT signals can be linked internally to other
EPMS modules. The LC Display shows which amplifier / channel is used (see below) and
indicates if the linear region of the amplifier is exceeded.
The input impedance is 1 M
Ω
(other impedances are available on request). The GAIN range
is x10 to x1000 and can be set by a rotary switch (10-20-50-100-200-500-1000 switch). The
OUTPUT is filtered by an 8 kHz lowpass filter.
