NPI DPA-2FL Operating Instructions Manual Download | Manualshive

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OPERATING INSTRUCTIONS AND

SYSTEM DESCRIPTION FOR THE

DPA-2FL

LOW-NOISE DIFFERENTIAL

AMPLIFIER / FILTER MODULE

FOR EPMS SYSTEMS

VERSION 1.1

npi 2010

npi electronic GmbH, Hauptstrasse 96, D-71732 Tamm, Germany

Phone +49 (0)7141-9730230; Fax: +49 (0)7141-9730240

[email protected]; http://www.npielectronic.com

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Summary of Contents for DPA-2FL

Page 1: ...THE DPA 2FL LOW NOISE DIFFERENTIAL AMPLIFIER FILTER MODULE FOR EPMS SYSTEMS VERSION 1 1 npi 2010 npi electronic GmbH Hauptstrasse 96 D 71732 Tamm Germany Phone 49 0 7141 9730230 Fax 49 0 7141 9730240 support npielectronic com http www npielectronic com ...

Page 2: ...ntents 1 Safety Regulations 3 2 EPMS 07 Modular Plug In System 4 2 1 Components of the EPMS 07 Housing 4 2 2 General System Description Operation 4 2 3 System Grounding 5 2 4 Technical Data 5 3 DPA 2FL Differential Amplifier Filter Module 6 3 1 DPA 2FL Components 6 3 2 System Description 6 3 3 Signal Flow Diagram 6 3 4 Description of the Front Panel and Operation 7 4 Literature 10 5 Technical Data...

Page 3: ... only 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 connected to ground protective earth Before opening the cabinet unplug the instrument Unplug the instrument when replacing the fuse or changing line voltage Replace fuse only with an appropriate specifie...

Page 4: ...in a 19 rackmount cabinet 3U containing a power supply and has room for up to 7 plug in units The 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 also for proper electrical connection to the system housing Free area must be protected with covers In ord...

Page 5: ...nal 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 th...

Page 6: ...ical signals The input voltage range is 12 V the inputs are protected up to 15 V All inputs and the output are BNC connectors The input impedance is 1 M Using the differential input configuration common mode signals and noise are removed allowing recordings of signals with very small amplitudes An optional NOTCH filter removes 50 Hz 60 Hz noise DC offsets can be compensated either by the using the...

Page 7: ...ge 7 3 4 Description of the Front Panel and Operation Figure 2 DPA 2FL front panel view In the following description of the front panel elements each element has a number that is related to that in Figure 2 The number is followed by the name in uppercase letters written on the front panel and the type of the element in lowercase letters Then a short description of the element is given ...

Page 8: ... Compensation procedure Set the input switches to OFF to ground the inputs and set the HIGH PASS FILTER to 100 Hz Set the GAIN range switch to 10 and adjust the baseline to zero using the ZERO ADJ trim pot Switch the GAIN factor switch to all positions and readjust to zero if necessary Note The overall OFFSET compensation is the product of the reading of both controls range switch and potentiomete...

Page 9: ...n In differential configuration the signal which is connected to IN is subtracted from the signal that is connected to IN Note If only one input is used single ended configuration the other should be grounded to avoid coupling of noise see also 10 and 11 10 11 input switches ON OFF toggle switches for grounding the BNC connectors 8 and 9 In OFF position the inputs are grounded 12 HIGH PASS FILTER ...

Page 10: ...ater maze performance exploratory activity inhibitory avoidance and hippocampal plasticity in aged superior and inferior learners Eur J Neurosci 16 2175 2185 Kettenmann H Grantyn R eds 1992 Practical Electrophysiological Methods Wiley Liss New York Lalley P M A K Moschovakis and U Windhorst 1999 Electrical Activity of Individual Neurons In Situ Extra and Intracellular Recording in U Windhorst and ...

Page 11: ... set by potentiometer range x0 1 or x1 set by toggle switch HIGH PASS FILTER single pole attenuation 6 dB octave corner frequencies Hz DC 0 1 1 100 300 600 LOW PASS FILTER single pole attenuation 6 dB octave corner frequencies Hz 50 100 1k 3k 5k 8 NOTCH FILTER 50 Hz or 60 Hz GAIN rotary switch 10 100 1k 2 5k 5k 10k Output range 12 V into 1 k 1 V into 50 Size front panel 12 HP 60 6 mm x 3U 128 5 mm...

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