INR-01T Manual - NPI Electronic Instruments
Contents
1. 7 INR SO TESTI CCOIpoOneDEs cascos abt a a 7 35 2 INR OTIST System Descrip puoi edad ee mede stem a bane vena eta ER optet 7 3 4 Description of the Front Panel and 7 a Woo PREMO RR dc ee renee eee 9 D Lechnfe ab Datis tutte dr eti d used dab cde sod UE 11 version 1 2 2 INR 01 T 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 602. D Electronic f Instruments for the Life Sciences TA E ade OPERATING INSTRUCTIONS AND SYSTEM DESCRIPTION FOR THE INR 01 T SIGNAL ENVELOPE INTEGRATOR MODULE FOR EPMS SYSTEMS INR OIT OFFSET 2 0 CULL D Or O AN em eo fay E 9 o 75 s e 4 gt ny 7 99 U oy QR D THR OUT OUT VERSION 1 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 INR 01 T User Manual Table of Contents le DALCLY ResulattOllS onis gamete E Eoo Seah dean on dem fU du idea 3 2 EPMS 07 Mod l In Sy SEED eed on opu eve koe Pado bee adesto exec eed ute caedit ooo 4 2 1 General System Description Operation 4 2 25 PEMS T TOUS IG 4 Deer EEMS Eae caries 4 2251 ottica od detulit bci 4 2 9s PEMS ree ee bos diee MAD I Le cai 5 20 PWR 1p TT 5 A E EAE O T T A E EE E A E E E E 6 a 6 PEMS SEO m 6 Zos MCC TMC AD GUA E 6 EPMS 07 EPMS E 07 and EPMSESEF 6 EPM S 07 ant BEPNLS ED UT envie doa ts emo aa rt daa oa dado 6 EPMS F aene ti eoo up eun ecce E Ree een ne eer ae 6 LEMS Me CR 6 3 INR 0I T Signal Envelope Integrator Module
3. 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 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 1 2 page 3 INR 01 T User Manual 2 EPMS 07 Modular Plug In System 2 1 General System Description Operat
4. NR 01 T User Manual 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 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 0 2 A slow inserted V Front covers DPA 2FS 6 OFFSET 10V PAREA Lif x 18 3 ST a Mi DA v Ne 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 PWH 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 15 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 E housing if connected p Figure 3 Left PWR 03D front pa
5. Output impedance 249 Q INPUT voltage range V GAIN factor x1 x11 continuous adjustment Output voltage range 11 V max Integration time constants 5 10 20 50 100 500 ms selectable by rotary switch OFFSET range 0 1 V THRESHOLD range V version 1 2 page 11
6. fication factor of the integrated signal Range x1 x11 8 THRESHOLD ON OFF switch Switch to enable THRESHOLD or disable OFF the threshold function Note The THR OUT output is always active regardless of the position of the THRESHOLD ON OFF switch version 1 2 page 8 INR 01 T User Manual 4 Examples All traces were recorded with an integrator time constant of 5 ms and a gain of 2 Envelope gt THR OUT Source 0 500 1000 1500 2000 ms Figure 6 Example using a triangle voltage as signal source no THRESHOLD set 5000 4000 3000 2000 Envelope 1000 THR OUT 0 Source 1000 2000 4 3000 0 500 1000 1500 2000 ms Figure 7 Example using a triangle voltage as source with THRESHOLD set version 1 2 page 9 INR 01 T User Manual 4000 3000 2000 1000 Envelope THR OUT 1000 Source 2000 d PA EP P EE FR 3000 i PUN 4000 0 50 100 150 200 ms Figure 8 Example using 50 Hz noise as source no THRESHOLD Envelope gt THR OUT Source 0 90 100 150 200 Figure 9 Example using 50 Hz noise as source with THRESHOLD set version 1 2 page 10 INR 01 T User Manual 5 Technical Data Input impedance 1 MQ 20 pF
7. ion 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 Y Fuse2 1 A slow inserted V Front covers 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 A 0 8 A slow inserted Front covers SSNS version 1 2 page 4 I
8. lways 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 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 03 Power supply 115 230 Volts AC 60 50 Hz fuse 0 4 A 0 2 A slow Maximum current supply 500 mA version 1 2 page 6 INR 01 T User Manual Dimensions 3U high 1U 1 3 4 44 45 mm 254 mm deep 265 mm wide 3 INR 01 T Signal Envelope Integrator Module 3 1 INR 01 T Components The following items are shipped with the INR 01 T V Integrator module for the EPMS 07 system V User manual 3 2 INR 01 T System Description The INR 01 T module is designed for generating envelopes from noisy INPUT signals e g to facilitate detection of oscillations from extracellular measurements in excitable tissues The INPUT signal is rectified by an absolute value circuit and subsequently applied to a leaky integrator for filtering The time constant of integration can be set using a 6 position switch Additionally a THRESHOLD can be set in order to mask the noise around the baseline that contains no information of inte
9. nel view Right PWR 03D rear panel view Note This power supply is intended to be used with npi EPMS E systems only version 1 2 page 5 INR 01 T 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 connecting 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 Bs amp X PWR 03D see Figure 3 Best performance is generally achieved without SONA connection of the chassis to protective earth Important A
10. rest and the OUTPUT envelope can be corrected for OFFSETs before amplification 3 4 Description of the Front Panel and Operation CO INR 01 T npi T ms OFFSET Figure 5 INR 0I T front panel view version 1 2 page 7 INR 01 T User Manual In the following description of the front 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 T ms switch 6 position switch for setting the time constant of the leaky integrator 2 THRESHOLD potentiometer 10 turn potentiometer for setting the threshold of the signal to be processed Used to blank a noisy baseline that contains no signal of interest Range 1 V 3 OFFSET potentiometer 10 turn potentiometer for canceling the offset of the OUTPUT Range 0 1 V 4 OUT connector BNC connector providing the processed signal 5 THR OUT connector BNC connector providing the signal processed by the THRESHOLD electronics This signal will be rectified and integrated if the THRESHOLD mode 15 selected see 8 Note The output is always active regardless of the position of the THRESHOLD ON OFF switch 6 IN connector BNC connector for the input of the signal to be processed 7 GAIN potentiometer 10 turn potentiometer for continuous setting the ampli
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