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PA-2S User Manual 

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version 1.5 

 

 

page 6 

2.3. System 

Grounding 

 
The 19" cabinet is grounded by the power cable through the ground pin of the mains 
connector (= protective earth). In order to avoid ground loops the internal ground is isolated 
from the protective earth. The internal ground is used on the BNC connectors or GROUND 
plugs of the modules that are inserted into the EPMS-07 housing. The internal ground and 
mains ground (= protective earth) can be connected by a wire using the ground plugs on the 
rear panel of the instrument. It is not possible to predict whether measurements will be less or 
more noisy with the internal ground and mains ground connected. We recommend that you 
try both arrangements to determine the best configuration. 
 

2.4. Technical 

Data 

 
- 19” rackmount cabinet, 3U high (1U=1 3/4” = 44.45 mm), for up to 7 plug-in units 
- Power supply: 115/230 Volts AC, 60/50 Hz, fuse 2 A / 1 A slow, 45-60 W 

Summary of Contents for PA-2S

Page 1: ...PA 2S TWO CHANNEL AMPLIFIER MODULE FOR EPMS SYSTEMS with 8 kHz Lowpass Filter VERSION 1 5 npi 2006 npi electronic GmbH Hauptstrasse 96 D 71732 Tamm Germany Phone 49 0 7141 601534 Fax 49 0 7141 601266...

Page 2: ...Table of Contents About this Manual 3 1 Safety Regulations 4 2 EPMS 07 Modular Plug In System 5 2 1 Components of the EPMS 07 Housing 5 2 2 General System Description Operation 5 2 3 System Grounding...

Page 3: ...mall bio electrical signals please read the manual completely The experienced user should read at least chapter 3 Important Please read chapter 1 carefully It contains general information about the sa...

Page 4: ...nly at 115 230 Volt 60 50 Hz AC Please check for appropriate line voltage before connecting any system to mains Always use a three wire line cord and a mains power plug with a protection contact conne...

Page 5: ...plug in units are connected to power by a bus at the rear panel The plug in units must be kept in position by four screws M 2 5 x 10 The screws are important not only for mechanical stability but als...

Page 6: ...l ground is used on the BNC connectors or GROUND plugs of the modules that are inserted into the EPMS 07 housing The internal ground and mains ground protective earth can be connected by a wire using...

Page 7: ...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...

Page 8: ...element in lowercase letters Then a short description of the element is given The PA 2S has two channels with identical operation elements that are numbered and described only once 1 AMP No LED The P...

Page 9: ...1 Hz DC the input signal is DC coupled 0 the input of the PA 2S is grounded possible offsets are not affected 6 INPUT BNC BNC connector to connect the input signal Input impedance 1 M other impedance...

Page 10: ...rk Ogden D ed 1992 Microelectrode Techniques The Plymouth Workshop Handbook Second Edition The Company of Biologists Ltd Cambridge Windhorst U Johansson H eds 1999 Modern Techniques in Neuroscience Re...

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