BF-48DGX manual ver2_2 - NPI Electronic Instruments
Contents
1. A 0 8 A slow inserted Front covers MV NNNN SN The EPMS E 07 housing is designed for low noise operation especially for extracellular and multi channel amplifiers with plugged in filters It operates with an external power supply to minimize distortions of the signals caused by the power supply version 2 2 page 4 BF 48DGX User Manual 2 5 EPMS 03 The following items are shipped with the EPMS 03 housing V EPMS 03 cabinet with built in power supply Mains cord V Fuse 034 A 0 2 A slow inserted V Front covers DPA 2FS npi OFFSET D 10V Oe di o 2 E x i M ug DA 0 RO Figure 2 Left front view of EPMS 03 housing Right rear panel detail of EPMS 03 and EPMS 07 housing In order to avoid induction of electromagnetic noise the power supply unit the power switch and the fuse are located at the rear of the housing see Figure 2 right 2 6 PWR 03D The external power supply PWR 03D is capable of driving up to 3 EPMS E housings Each housing is connected by a 6 pole cable from one of three connectors on the front panel of the PWR 03D to the rear panel of the respective EPMS E housing see Figure 3 Figure 4 A POWER LED indicates that the PWR 03D is powered on see Figure 3 left Power switch voltage selector and fuse are located at the rear panel see Figure 3 right Note The chassis of the PWR 03D is connected to protective earth and it provides protective earth to the EPMS E2. The filter is either an eight pole or a four pole Bessel LOWPASS FILTER and has 16 corner frequencies 20 Hz 20 kHz The filter can also be bypassed A type label on the rear panel indicates which filters are installed in the purchased version of the BF 48DGX according to the following table 1 8H 4HL 8L 4L Highpass I pole Bessel I pole Bessel 8 pole Bessel 4 pole Bessel 8 pole Bessel 4 pole Bessel version 2 2 page 7 BF 48DGX User Manual The position of the GAIN switch and of the FILTER switch es can be read from the respective monitor outputs 1V step 3 3 Signal Flow Diagram The signal is passed through the BF 48DGX as shown below LIN AC 0 DC Selection z Differential Offset Notch p Highpass Gar e Lowpass OUT N AC O DC _Input Compensation Filter Filter Filter selection 3 4 Description of the Front Panel 7 8 9 CO BF 48DGX npi O LOWPASS FILTER o Q O 10 0 00 13 50 og 20k 10 30 50 O0 n 300 G 0 5 800 rg DC n HICHPASS FILTER e FILTER o ei LOWPASS BYPASS MONITOR 600020 HICHPASS GAIN MONITOR MONITOR OUTPUT INPUT INPUT O O ZERO ADJUST OFFSET RANGE e Figure 5 BF 48DGX front panel view version 2 2 page 8 BF 48DGX User Manual In the following description of the front
3. 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 specified type STATIC ELECTRICITY Electronic equipment is sensitive to static discharges Some devices such as sensor inputs are equipped with very sensitive FET amplifiers which can be damaged by electrostatic charge and must therefore be handled with care Electrostatic discharge can be avoided by touching a grounded metal surface when changing or adjusting sensors Always turn power off when adding or removing modules connecting or disconnecting sensors headstages or other components from the instrument or 19 cabinet TEMPERATURE DRIFT WARM UP TIME All analog electronic systems are sensitive to temperature changes Therefore all electronic instruments containing analog circuits should be used only in a warmed up condition 1 e after internal temperature has reached steady state values In most cases a warm up period of 20 30 minutes is sufficient HANDLING Please protect the device from moisture heat radiation and corrosive chemicals version 2 2 page 3 BF 48DGX User Manual 2 EPMS 07 Modular Plug In System 2 1 General System Description Op
4. housing if connected OUTPUT A ESS eee CU Kc cue E LL ge SS PWR 03D npi OUTPUT B OUTPUT C POWER ep 1 6A 115VAC p s 50 60 Hz a t E T npi electronic GmbH E m C D 71732 Tamm Germany R www npielectronic com OFF J DE 62724752 Figure 3 Left PWR 03D front panel view Right PWR 03D rear panel view Note This power supply is intended to be used with npi EPMS E systems only version 2 2 page 5 BF 48DGX User Manual 2 7 System Grounding EPMS 07 EPMS 03 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 EPMS E 07 POWER The 19 cabinet is connected to the CHASSIS connector at the rear panel It can be connected to the SYSTEM GROUND SIGNAL GROUND on the rear panel of the instrument see Figure 4 The chassis can be linked to PROTECTIVE EARTH by c
5. panel elements each element has a number that is related to that in Figure 5 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 1 HIGHPASS MONITOR connector BNC connector monitoring the position of the HIGHPASS FILTER 6 5V wwe IV step OFF 6V MONITOR 2 LOWPASS MONITOR connector BNC connector monitoring the position of the LOWPASS FILTER 6 5V 74 V step 3 NOTCH switch optional NOTCH OFF 4 HIGHPASS FILTER switch optional Switch to set the NOTCH filter SO Hz 60 Hz or to bypass the NOTCH filter switch position OFF HIGHPASS Hz 10 30 s50 PFA 16 position rotary switch for selecting the corner frequency of the HIGHPASS ZA FILTER range 0 1 Hz to 3 kHz In DC position the HIGHPASS FILTER is bypassed Important If the HIGHPASS FILTER is used the OFFSET control is disabled 5 OFFSET potentiometer 10 turn potentiometer to compensate for the OFFSET of a DC signal The OFFSET range is set by a switch 11 Note Position 5 of the OFFSET control corresponds to 0 mV offset The offset compensation only works if the input coupling switch 12 14 is set to DC and the HIGHPASS FILTER is set to OFF version 2 2 page 9 BF 48DGX User Manual 6 LOWPASS FILTER switch LOWPASS Hz 16 position rotary switch for selecting th
6. Electronic f Instruments for the Life Sciences oaa e made OPERATING INSTRUCTIONS AND SYSTEM DESCRIPTION FOR THE BF A45DGX DIFFERENTIAL AMPLIFIER FILTER MODULE FOR EPMS SYSTEMS BF 48DGX VERSION 2 2 npi 2015 npi electronic GmbH Bauhofring 16 D 71732 Tamm Germany Phone 49 0 7141 9730230 Fax 49 0 7141 9730240 support npielectronic com http www npielectronic com BF 48DGX User Manual Table of Contents te Say RS OULALL OS ts edet or a a MED EN a CALIDAD DR MD ILI ON MM M UA DIDD 2 JPNIS 07Modulat PluseIn o VSbelflo su semine spatii e Men Ri R Dex spetta uai tates 2 General System Description ODeratlOE custodiat oe et oa ua ie er etai t Post uae i 2 2 JEPNISSOT HOUD deo soto dio bleus ca uu ria exea Cdi D oie be va uU Cus dus cO CU n oa Ne tai UN EUE P255 NIB S udi sm ELO e o1 10 rcm 2 4 EPMS E 07 2 5 EPMS 03 2 6 PWR 03D PLOUGH yates ar ic crac a diet naw eeetessaians 2I AY SUC Ui GITOUTIGI fase aces Sete deco cutie E Santen lone eke lenei iow ena SD ot ue betds EDS TEEN Oe addas e Remap nee pre Men AID Na See ettet e dq seen Sern Mee EPMS E 07 2 0 Techical Da site etoile iso Landau uet toss usce aida aee da see ueste E de EPMS 07 EPMS E 07 and EPMS H 07 00 00 0000 cio cccsccoscceccesccecccscovscsecascovscescassnescasens EPNIS 07 and EPNSSTISQU AL s car cence caste em a oe ea eee os EPMS E 07 EPMS 03 3 BF 48DGX Differential Amplifier Filter Module
7. cc cccccccccccccceeeeeeeeeeeeeeeeeeeeeees 3 1 BF 48DGX 3 2 BF 48DGX 3 3 Signal Flow COMPOR IIS cauaa noctu A tarred aaa meer ease at S VSIETHODECSOEIDUTOTM s 25st ems E RTL en ANS a sU een eeuers Bitur atre ES 24 Descuption OF the Front Panel suadet iet acie irons Fui vba cta ond aeu pde boc ut queas hoo Evi oa dose pieles 4 literature 5 Technical Data version 2 2 page 2 BF 48DGX User Manual 1 Safety Regulations VERY IMPORTANT Instruments and components supplied by npi electronic are NOT intended for clinical use or medical purposes e g for diagnosis or treatment of humans or for any other life supporting system npi electronic disclaims any warranties for such purpose Equipment supplied by npi electronic must be operated only by selected trained and adequately instructed personnel For details please consult the GENERAL TERMS OF DELIVERY AND CONDITIONS OF BUSINESS of npi electronic D 71732 Tamm Germany 1 2 3 4 5 GENERAL This system is designed for use in scientific laboratories and must be operated only by trained staff General safety regulations for operating electrical devices should be followed AC MAINS CONNECTION While working with the npi systems always adhere to the appropriate safety measures for handling electronic devices Before using any device please read manuals and instructions carefully The device is to be operated only at 115 230 Volt 60 50 Hz AC Please check
8. ctrical signals The input voltage range is 12 V Two overload LEDs indicate if the linear region of the amplifier is exceeded All inputs and the output are BNC connectors The INPUT impedance is 1 MQ other values possible Using the differential INPUT configuration common mode signals and noise are removed allowing processing of signals with small amplitudes The INPUT stage is followed by the offset compensation Important To avoid noise interference the respective INPUT toggle switch should be in the zero position if one of the inputs is not used DC offsets can be compensated either by the using the OFFSET control or they can be eliminated using the AC position of the input switches or by using the HIGHPASS FILTER optional The BALANCE monitor allows fine tuning of DC offsets in the range of 30 mV Three OFFSET ranges can be selected Optionally a NOTCH filter can be used to eliminate 50 Hz or 60 Hz noise respectively The NOTCH filter can be bypassed with a toggle switch See type label on the rear panel for the type of NOTCH filter installed in the purchased version of the BF 48DGX The BF 48DGX can be equipped with a one pole Bessel HIGHPASS FILTER option The filter has 15 corner frequencies 0 1 Hz 3 kHz a DC position and can be bypassed The GAIN stage allows the amplification of the input signal from 1 to 1000 The gain is selected by a ten position rotary switch An output filter is applied to the amplified signal
9. e corner frequency of the LOWPASS FILTER range 20 Hz to 20 kHz The LOWPASS FILTER can be bypassed using switch 17 7 9 OVER LEDs LEDs that indicate if the amplifier 1s 10 below its positive or negative limit 10 V The linear range of the amplifier is 12 V 8 BALANCE monitor The analog monitor that displays the offset in the range of 300 mV for optimal cancellation of the OFFSET 10 position rotary switch to set the amplification factor of the incoming signal range 1 to 1000 11 ZERO ADJUST potentiometer Use this potentiometer to adjust the output offset while applying high gain 12 OFFSET RANGE switch 0 1V IV OFF Se 4 position rotary switch to set the range of the OFFSET potentiometer 5 OFF 0 1 V 1 V 10V OFFSET RANGE version 2 2 page 10 BF 48DGX User Manual 13 15 DC 0 AC switch The position of the input coupling switch decides how the input signal is coupled AC the input signal is AC coupled with a corner frequency of 0 1 Hz DC the input signal is DC coupled 0 the input signal 1s grounded Switch to select the coupling of an incoming signal AC or DC Position 0 links the respective INPUT connector 13 15 to ground 14 16 INPUT connectors BNC connectors to connect the signal to be processed The INPUTS can be used in single ended or differential configuration In differential configuration the signal that is connected to INPUT is subt
10. eration The npi EPMS 07 is a modular system for processing of bioelectrical signals in electrophysiology The system is housed in a 19 rack mount cabinet 3U 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 2 2 EPMS 07 Housing The following items are shipped with the EPMS 07 housing V EPMS 07 cabinet with built in power supply Mains cord V Fuse2 A 1 A slow inserted V Front covers i Sererers Hee 9 9585 9 VB UNSNTUTS TANE eee ee eee ee A F Figure 1 Left front view of empty EPMS 07 housing In order to avoid induction of electromagnetic noise the power supply unit the power switch and the fuse are located at the rear of the housing see Figure 2 right 2 3 EPMS H 07 Housing In addition to the standard power supply of the EPMS 07 the EPMS H 07 has a built in high voltage power supply This is necessary for all MVCS MVCC modules the HVA 100 HV TR150 and HVC 03M modules The output voltage depends on the modules in use 2 4 EPMS E 07 Housing The following items are shipped with the EPMS E 07 housing EPMS E 07 cabinet External Power supply PWR 03D Power cord PWR 03D to EPMS E 07 Mains chord Fuse 1 6
11. onnecting it to the PWR 03D with the supplied 6 pole cable and by interconnecting the GROUND and PROTECTIVE EARTH connectors on the rear panel of the T PWR 03D see Figure 3 Best performance is generally achieved without connection of the chassis to protective earth SIGNAL HASS GROUND c IS Important Always adhere to the appropriate safety measures Figure 4 Rear panel connectors of the EPMS E 07 2 8 Technical Data EPMS 07 EPMS E 07 and EPMS H 07 19 rackmount cabinet for up to 7 plug in units Dimensions 3U high 1U 1 3 4 44 45 mm 254 mm deep EPMS 07 and EPMS H 07 Power supply 115 230 V AC 60 50 Hz fuse 2 A 1 A slow 45 60 W EPMS E 07 External power supply PWR 03D 115 230 V AC 60 50 Hz fuse 1 6 0 8 A slow Dimensions of external power supply W x D x H 225 mm x 210 mm x 85 mm EPMS 05 Power supply 115 230 Volts AC 60 50 Hz fuse 0 4 A 0 2 A slow Maximum current supply 500 mA Dimensions 3U high 1U 1 3 4 44 45 mm 254 mm deep 265 mm wide version 2 2 page 6 BF 48DGX User Manual 3 BF 48DGX Differential Amplifier Filter Module 3 1 BF 48DGX Components The following items are shipped with the BF 48DGX system V Amplifier Filter module for the EPMS 07 system V User manual 3 2 BF 48DGX System Description The BF 48DGX differential amplifier filter is a plug in unit for the npi EPMS 07 modular system The BF 48DGX is designed to amplify and filter small bio ele
12. racted from the signal that is connected to INPUT Important If only one INPUT is used single ended configuration the other should be connected to ground see also 12 14 to avoid coupling of noise The coupling of the incoming signal is determined by switches 12 and 14 respectively 17 OUTPUT connector BNC connector that provides the processed signal OUTPUT 18 FILTER BYPASS switch Switch to select whether the unfiltered BYPASS position or the filtered FILTER position signal is linked to the OUTPUT 16 version 2 2 page 11 BF 48DGX User Manual 4 Literature Boulton A A Baker G B amp Vanderwolf C H eds 1990 Neurophysiological Techniques Basic Methods and Concepts Humana Press Clifton New Jersey Kettenmann H amp Grantyn R eds 1992 Practical Electrophysiological Methods Wiley Liss New York Ogden D ed 1992 Microelectrode Techniques The Plymouth Workshop Handbook Second Edition The Company of Biologists Ltd Cambridge Windhorst U amp Johansson H eds 1999 Modern Techniques in Neuroscience Research Springer Berlin Heidelberg New York version 2 2 page 12 5 Technical Data INPUT Input range Input Impedance AC coupling at input INPUT PROCESSING Offset Compensation Highpass Filter option Lowpass Filter Gain Overload LEDs OUTPUT Full power bandwidth Output impedance Output voltage Outp
13. ut current Load capacitance Gain frequency monitors DIMENSIONS Front panel Housing version 2 2 BF 48DGX User Manual 12 V 1 MQ related to ground other values possible input capacitance 30 pF corner frequency of 0 1 Hz Gf AC 0 DC switch at BNC connector is switched to AC 0 1 V 1 V or 10 V by toggle switch and ten turn potentiometer gain 1 single pole attenuation 6 dB octave corner frequencies Hz DC 0 1 0 3 0 5 1 3 5 10 30 50 100 300 500 800 1k 3k according to type label on rear panel 8 pole Bessel attenuation 48 dB octave or 4 pole Bessel attenuation 24 dB octave corner frequencies Hz 20 50 100 200 300 500 700 1k 1 3k 2k 3k 5k 8k 10k 13k 20k rotary switch 1 2 5 10 20 50 100 200 500 1000 starting to light up at 10 V 20 kHz 50 max 12 V short circuit protected max 15 mA max 10 nF 1 V step Gain 1 V to 10 V LP filter 8 V to 7 V HP filter 8 V to 7 V 24 HP 121 5 mm x 3U 128 5 mm T 175 mm deep page 13
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