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OPERATING INSTRUCTIONS AND
SYSTEM DESCRIPTION FOR THE
INR-01-T
SIGNAL ENVELOPE / INTEGRATOR
MODULE FOR EPMS SYSTEMS
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
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Summary of Contents for NPI INR-01-T
- Page 1 OPERATING INSTRUCTIONS AND SYSTEM DESCRIPTION FOR THE INR-01-T SIGNAL ENVELOPE / INTEGRATOR MODULE FOR EPMS SYSTEMS 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...
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Page 2: Table Of Contents
EPMS-07 and EPMS-H-07 ..................6 EPMS-E-07 ........................6 EPMS-03 ........................6 3. INR-01-T Signal Envelope / Integrator Module ..............7 3.1. INR-01-T Components ....................7 3.2. INR-01-T System Description ..................7 3.4. Description of the Front Panel and Operation ............. 7 4. -
Page 3: 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. -
Page 4: Epms-07 Modular Plug-In System
2.1. General System Description / Operation 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. -
Page 5: Epms-03
Note: The chassis of the PWR-03D is connected to protective earth, and it provides protective earth to the EPMS-E housing if connected. 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 1.2 page 5... -
Page 6: System Grounding
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. -
Page 7: Inr-01-T Signal Envelope / Integrator Module
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”... - Page 8 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.
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Page 9: Examples
INR-01-T User Manual 4. Examples All traces were recorded with an integrator time constant of 5 ms and a gain of 2. 5000 4000 3000 2000 Envelope 1000 THR.OUT Source -1000 -2000 -3000 1000 1500 2000 Figure 6: Example using a triangle voltage as signal source, no THRESHOLD set. - Page 10 INR-01-T User Manual 4000 3000 2000 1000 Envelope THR.OUT Source -1000 -2000 -3000 -4000 Figure 8: Example using 50 Hz noise as source, no THRESHOLD. 4000 3000 2000 1000 Envelope THR.OUT Source -1000 -2000 -3000 -4000 Figure 9: Example using 50 Hz noise as source, with THRESHOLD set.
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Page 11: Technical Data
INR-01-T User Manual 5. Technical Data Input impedance: 1 MΩ / 20 pF Output impedance: 249 Ω INPUT voltage range : ±1 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...
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