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Summary of Contents for WPI ISDB
- Page 1 WORLD PRECISION INSTRUMENTS INSTRUCTION MANUAL ISDB ISO-DAM 8A and BRIDGE8 Serial No._____________________ www.wpiinc.com 060920...
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Page 3: Table Of Contents
ISDB CONTENTS BRIDGE8 ............................1 Introduction ..........................1 Unpacking ..........................2 Instrument Description ......................2 Operations ..........................2 Positioning the Output to Zero ..................3 Bridge Switch ........................3 Transducer Calibration ...................... 4 Example ..........................4 General Amplification ......................4 Specifications .......................... - Page 4 World Precision Instruments...
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Page 5: Bridge8
ISDB BRIDGE8 The following symbols are used in this guide: This symbol indicates a CAUTION. Cautions warn against actions that can cause damage to equipment. Please read these carefully. This symbol indicates a WARNING. Warnings alert you to actions that can cause personal injury or pose a physical threat. -
Page 6: Unpacking
Concealed damage should be reported at once to the carrier and an inspection requested. Please read the section entitled “Claims and Returns” on page 15 of this manual. Please contact WPI Customer Service if any parts are missing at 941.371.1003 or customerservice@wpiinc.com. -
Page 7: Positioning The Output To Zero
ISDB + O UT - 5 V + 5 V - O UT G ND TRA NS DUCE R P L UG (S O L DE R S IDE) S HIE L D Fig. 2—Wiring schematic for the 8-pin DIN connection. -
Page 8: Transducer Calibration
Transducer Calibration Bridge-8 provides fixed and accurate decade amplification steps. Of most interest to the user, however, may be the conversion factor from the physical variable—grams, mm of Hg, mm of displacement—to output voltage. Since the transducer’s conversion factor is often not exactly known and varies with the voltage applied to the sensor (10 volts from Bridge-8), it is therefore necessary for the user to calibrate the system using known forces, pressures or displacements to scale the output of Bridge-8 quantitatively with the original physical parameter being measured. - Page 9 175 Sarasota Center Boulevard Sarasota, FL 34240-9258 USA As the manufacture/distributor of the apparatus listed, declare under sole responsibility that the product(s): WPI PN: ISDB SERIES To which this declaration relates is/are in conformity with the following standards or other normative documents: Safety:...
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Page 10: Iso-Dam8A
ISO-DAM8A The following symbols are used in this guide: This symbol indicates a CAUTION. Cautions warn against actions that can cause damage to equipment. Please read these carefully. This symbol indicates a WARNING. Warnings alert you to actions that can cause personal injury or pose a physical threat. -
Page 11: Introduction
Problems caused by “ground loops” are eliminated. Electrodes or other signal sources may be connected directly to the Iso-DAM8A input connector, or an optional active headstage (WPI Part #74040) may be used. The headstage connects to the Iso-DAM8A through a 5-foot cable. It contains a high impedance differential amplifier in a small metal housing. -
Page 12: Instrument Description
plastic surrounded with at least 100mm (four inches) of shock absorbing material. For further details, please read the section entitled “Claims and Returns” on page 15 of this manual. Instrument Description Noise and Interference Electrical noise and interference originating from the current and voltage in the power mains and room lighting power is a primary source of concern for low level bioelectric recording. -
Page 13: Input Cable
ISDB Input Cable For convenience of connection to signal sources, each Iso-DAM8A module is supplied with a 5-foot length of shielded input cable. One end is terminated in a DIN plug which mates with the module. The other end has unterminated tinned leads. The wires are... -
Page 14: Filters
Pin 13 Pin 1 Pins 14 ~ 25 (bottom row) NOT USED Fig. 6—The 25-pin connector is used with data acquisition systems. Filters Iso-DAM8A provides selected filtering at both the high and low ends of its frequency spectrum. The Low Filter settings are DC, 0.1, 1, 10 and 300Hz. The High Filter settings are 100, 500Hz, 1kHz, 3kHz, and 10kHz. -
Page 15: Input Connections
ISDB Input Connections CAUTION: The inputs to the Iso-DAM8A and the headstage can be damaged by electrostatic discharge. We recommend that you momentarily touch the Iso-DAM8A chassis or any grounded metal object before connecting wire or electrodes to the inputs. -
Page 16: Output Connections
Output Connections The output from each Iso-DAM8A module is available on the rear panel from a standard BNC connector or all channels are available at the 25-pin connector. See Fig. 6 for pin designations. The Iso-DAM8A output is suitable for application to any recording or data acquisition device. -
Page 17: Specifications
ISDB The GAIN control should be set so that the desired signal produces a significant (>30% of full scale or so) on the recording device. If the recording device has a gain or sensitivity control, it is usually preferable to set the recording device to a low gain and the Iso-DAM8A to a high gain. - Page 18 World Precision Instruments...
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Page 19: Warranty
WPI shall not be liable for any damage to data or property that may be caused directly or indirectly by use of this product. - Page 20 175 Sarasota Center Blvd., Sarasota FL 34240-9258 Tel: 941-371-1003 • Fax: 941-377-5428 • E-mail: sales@wpiinc.com 1 Hunting Gate, Hitchin, Hertfordshire SG4 0TJ Tel: 44 (0)1462 424700 • Fax: 44 (0)1462 424701 • E-mail: wpiuk@wpi-europe.com Germany Pfingstweide 16, D-61169 Friedberg (Hessen), Germany Tel: +49 (0)6031 67708-0 •...
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