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Summary of Contents for Kinemetrics EpiSensor FBA ES-T
- Page 1 User Guide EpiSensor Force Balance Accelerometer Model FBA ES-T Document 301900 Revision D October 2005...
- Page 2 Trademarks This manual copyright © Kinemetrics, Inc., 2005. All rights reserved. Kinemetrics products are covered by U.S. and foreign patents, issued and pending. Printed in U.S.A. The trademarks used throughout this manual, registered or not, are: Kinemetrics, QuickTalk!, QuickLook! , K2! , Mt. Whitney! , Etna! ,...
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Page 3: Table Of Contents
301900, R OCUMENT EVISION Table of Contents 1. Introduction The EpiSensor FBA ES-T................1 Inspecting the EpiSensor................2 2. Installation Basics Requirements for Installation.................3 Required Tools..................3 Required Supplies ..................4 Required Equipment ................4 Mounting & Orienting the EpiSensor ............4 Required Cables ..................7 Grounding the EpiSensor................7 Safety First .....................7... - Page 4 301900, R OCUMENT EVISION EpiSensor Configuration................20 Opening the EpiSensor Case..............21 Pin Numbering System ................21 Jumper Selectable Options................22 Setting the Full-scale Range ................22 Headers and Connectors on Oscillator Board..........25 Output Voltage Level...................26 Power & Noise Configurations..............27 Low-Noise Power Control ..............28 Power Supply Options .................29 Calibration Coil....................29 Calibration Coil Disconnect..............29 Calibration Coil Test Connector ............30...
- Page 5 301900, R OCUMENT EVISION Long Cables ..................45 User-Supplied Cable ................46 Grounding ....................46 Use with Non-Kinemetrics Data Loggers...........48 Power Supply ..................48 Output Voltage..................50 Calibration Sequence ................50 Ground Loop Prevention..............51 Custom Cable Assembly................52 Cable Assembly Instructions ...............55 Identical Assembly Procedures............55 Final Assembly of the Recorder End ...........60 Testing Connector Assembly #1............62...
- Page 6 301900, R OCUMENT EVISION Figure 19: Amplitude, phase, and step response of the EpiSensor response model................39 Figure 20: X, Y and Z coordinates...............41 Figure 21: EpiSensor to Altus recorder cable ..........52 Figure 22: Parts for recorder-end mating connector assembly ....54 Figure 23: Preparing 3/8"-wide foil tape from 1"...
- Page 7 Safety Symbols & Terms The following symbols may appear on Kinemetrics equipment or in this manual. When you see this symbol, pay careful attention. Refer to the similarly marked, relevant part of this manual before servicing the instrument. This symbol means a low-noise earth ground. The noted item should be grounded to ensure low-noise operation, and also to serve as a ground return for EMI/RFI and transients.
- Page 8 If you plan to power the EpiSensor from a recorder, connect the recorder to a power supply/charger supplied by Kinemetrics, as described in each recorder's user manual. To supply power directly to the EpiSensor, you need a low-noise, regulated "...
- Page 9 Sicherheit Symbole & Begriffe Diese Symbole können auf Kinemetrics Geräte oder in diesen Manuel erscheinen: Bedeutet Achtung! Wenn sie dieses Symbol auf ein Gerät sehen, muss den gleich markierten Teil dieses Manuels beachet werden. Bevor irgend eine Unterhaltsarbeit angefangen wird, muss dieser Teil des Manuels gelesen werden.
- Page 10 Ihrer eigenen Stromquelle "12 V versorgt werden. Sollten Sie planen, die EpiSensor mit Strom von einem Recorder zu versorgen, verbinden Sie den Recorder mit unserem Kinemetrics Stromladegerät, wie es in unserem “User Manuel” beschrieben ist. Um die EpiSensor direkt mit Strom zu versorgen, müssen Sie ein Ladegerät "12 V, welches mit allen Sicherheitsbedingunge ausgestattet ist, benutzen.
- Page 11 Seguridad Símbolos & Términos Estos símbolos podrían aparecer en los equipos Kinemetrics o en este manual: Significa poner atencion! Cuando Usted vea este símbolo en el instrumento, referirse a las partes de este manual marcadas similarmente. Antes de intentar cualquier servicio en este instrumento, Usted tiene que leer las partes relevantes de este manual.
- Page 12 Los últimos dos términos mencionados arriba podrían también aparecer en el equipo Kinemetrics que Usted ha comprado, pero no necesariamente # indiferentemente, Usted debe definitivamente tomar notas serias de las precauciones y advertencias en este manual.
- Page 13 No Opere en Atmósferas Explosivas El EpiSensor no proporciona ninguna protección explosiva para descargas estáticas componentes que generen arcos eléctricos. No operar el equipo en una atmósfera de gases explosivos. ENSOR UIDE AFETY...
- Page 14 Sécurité Symboles & Terminologie Les symboles suivant peuvent figurer sur les équipements Kinemetrics ou dans ce manuel: Signifie Attention! Quand vous rencontrez ce symbole sur un instrument, veuillez vous référer à la section de ce manuel signalée par la même marque.
- Page 15 Si vous alimentez le EpiSensor avec l’enregistreur, connectez l’enregistreur en utilisant le système d’alimentation fourni par Kinemetrics, et decrit dans le manuel d’utilisation délivré avec l’enregistreur. Pour fournir une alimentation au EpiSensor, vous avez besoin d’une source à...
- Page 16 Ne Pas Utiliser en Atmosphère Explosif Le EpiSensor ne comprend pas de protection contre les explosions dues aux décharges statiques ou aux composants pouvant provoquer des arcs. Ne pas utiliser ces composants en présence de gaz explosifs. AFETY ENSOR UIDE...
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Page 17: Introduction
Kinemetrics is committed to ensuring a successful installation. For assistance with planning, installation, operation or maintenance, contact Kinemetrics at the locations listed in the front of this manual. Kinemetrics also has an extensive Services Group that can install, maintain, and analyze the data from your EpiSensor. -
Page 18: Inspecting The Episensor
Although Kinemetrics takes every precaution in packing its systems, shipping damage can still occur. If you find a problem, note the condition of the shipping container. Then contact the freight forwarder and Kinemetrics as soon as possible. Caution: Damage to sensors. Dropping the EpiSensor onto a hard surface can damage the sensors. -
Page 19: Installation Basics
Requirements for Installation Listed below are the tools, supplies and equipment required to install the EpiSensor in a typical configuration (remotely from a Kinemetrics recorder, and attached to that recorder via cable). However, certain installations may require additional tools, supplies or equipment, depending on specific sites and needs. -
Page 20: Required Supplies
EpiSensor to the recorder. If custom cable is required, refer to Chapter 6. Depending on the length required, you might have purchased either Kinemetrics P/N 700045 or the Belden cable stocked by Kinemetrics as P/N 840356. Heat-shrink tubing (1/4" diameter), cable tie-wraps, and electrical tape. -
Page 21: Figure 2: Episensor Mounting Dimensions
301900, R OCUMENT EVISION Use the EpiSensor mounting kit to attach the sensor to the mounting surface. The kit includes a heavy-duty wedge-type expansion anchor stud with 1/4-20 thread and a nut/washer unit. Decide on the location of the EpiSensor, keeping in mind the working space dimensions in Figure 2. -
Page 22: Figure 3: Drilling Episensor Mounting Hole
301900, R OCUMENT EVISION Figure 3: Drilling EpiSensor mounting hole Percussion or hammer drill Concrete pad Drill bit with diameter to fit anchor stud Drill slightly deeper than length of anchor stud (>2") Hammer Nut aligned with top of anchor bolt 3/8"... -
Page 23: Required Cables
Required Cables If you purchased pre-made cables from Kinemetrics, you can proceed with the following instructions. If you are making your own cables, please see page 6-10 in the Advanced Installations section for instructions on custom cable fabrication. -
Page 24: Emi/Rfi
301900, R OCUMENT EVISION Since the EpiSensor contains no high voltage circuitry and is not connected to AC power, safety concerns arise from the instrument-end of the connection cable. When using your own power system, be sure that AC power is fully isolated from the DC power supplied to the EpiSensor and that the power supply is safely grounded. -
Page 25: Powering The Episensor
Polyphaser Corporation provides an excellent practical treatment of grounding techniques. In sites exposed to high levels of EMI/RFI, such as, hill top “Antenna Farms” additional EMI/RFI protection may be required. The Kinemetrics EpiSensor Protection Enclosure (KMI 301931) can be purchased for such sites. -
Page 26: Zero-Adjusting The Episensor
301900, R OCUMENT EVISION First, apply power to the system without connecting the cable to the EpiSensor and then verify that the power connections are correct. For a dual supply EpiSensor, verify that +12V is present on Pin J and –12V is present on Pin H, both referenced to power common Pin K. -
Page 27: Note On Full-Scale Range
301900, R OCUMENT EVISION 2. Gently insert a hex ball (5/64" or 2mm) wrench, perpendicular to the case, as far as it will go into the adjustment hole and make very minimal adjustments – counterclockwise for negative adjustments and clockwise for positive. Important: Give the unit a moderate tap with a screwdriver handle. -
Page 28: Figure 4: Episensor & Packaging Components
301900, R OCUMENT EVISION induced variations of the zero level of the sensor. It is particularly important to prevent airflow from heating/cooling equipment from blowing directly on the sensor housing. The best results are obtained by using thick insulation comprising glass wool insulation and thermal radiation barriers, such as “Space Blankets”. -
Page 29: Figure 5: Large Packaging Piece Installed
301900, R OCUMENT EVISION Figure 5: Large Packaging Piece Installed Now install the cable as shown in Figure 6 below: Figure 6: Cable Installed ENSOR UIDE... -
Page 30: Figure 7: Second Packaging Piece Installed Over Connector Shell
301900, R OCUMENT EVISION Now place the thin piece of foam with the hole and the slot over the EpiSensor placing the connector through the hole. This is shown in Figure 7 below. Figure 7: Second Packaging Piece Installed over Connector Shell Finally the last piece of packaging can be placed over the connector and cable as shown below in Figure 8. -
Page 31: Figure 8: Final Packaging Piece Installed
301900, R OCUMENT EVISION Figure 8: Final Packaging Piece Installed Our testing has shown that this simple measure can significantly reduce the short term variations due to changes in air temperature and air currents. ENSOR UIDE... -
Page 33: Operating Basics
Power supply options Polarity Conventions Unlike previous generations of Kinemetrics force balance accelerometers, the EpiSensor uses a right-handed X Y, Z coordinate system with a positive output for acceleration along each axis. For information on polarity conventions, see page 5-6 in the Reference chapter. -
Page 34: Episensor External Features
A bubble level for leveling the unit External mounting bracket Required Power If you are using the EpiSensor with a Kinemetrics Altus instrument, the +/-12V power will be supplied from the recorder. If you are using a Kinemetrics recorder with the EpiSensor configured to use the low-noise option, read the appropriate section in Chapter 6 to be sure your Altus instrument can provide sufficient current for the EpiSensor. -
Page 35: Performing A Functional Test With An Altus Recorder
Altus instrument firmware released after August 1, 1998 performs a dual polarity pulse test on EpiSensors as the standard functional test when correctly configured. This firmware is available at the Kinemetrics website. Figure 10: Display of functional test The height of the pulse will depend on the full-scale setting of the instrument but will correspond to a g level of approximately 0.125g. -
Page 36: Sensor Response Test
The resulting file contains the information needed to compute the sensor response. For more information on the sensor response test consult the Kinemetrics website. EpiSensor Configuration This section describes how to configure the EpiSensor by placing 2-pin jumpers on specific headers located on either the EpiSensor modules (X, Y or Z axis) or the oscillator board (P/N 110375). -
Page 37: Opening The Episensor Case
301900, R OCUMENT EVISION These jumpers are normally configured by Kinemetrics at the time of manufacture. If your EpiSensor is set to the correct range, the following instructions for re-configuring are unnecessary. However, if you wish to change the settings, it is possible to do so in a laboratory environment. -
Page 38: Jumper Selectable Options
Additional jumpers are shipped with the EpiSensor to allow different configurations to be set. If you need more jumpers, they can be ordered from Kinemetrics as P/N 851152. Setting the Full-scale Range The full-scale range is configured by putting jumpers on headers X1 and X4 on the feedback board of individual FBA modules. -
Page 39: Figure 13: Feedback Board
301900, R OCUMENT EVISION Table 2: Range/sensitivity calculations Full-scale Single-ended Single-ended Differential Differential " 2.5V output " 10V output " 5V output " 20V output range 1/4g 10 V/g 40 V/g 20 V/g 80 V/g 1/2g 5 V/g 20 V/g 10 V/g 40 V/g 2.5 V/g... -
Page 40: Figure 14: Full-Scale Range Jumper Settings
301900, R OCUMENT EVISION Configure each range by installing jumpers (indicated by the black rectangles) as shown in the figure below. Note: For clarity, we have numbered each connector pin in the figure below, however, only #1 will appear on the actual feedback board. Figure 14: Full-scale range jumper settings Header X1 Header X4... -
Page 41: Headers And Connectors On Oscillator Board
301900, R OCUMENT EVISION Headers and Connectors on Oscillator Board The following two figures show the location of all of the headers and connectors on the oscillator board used to configure the following options. Figure 15: Top view of oscillator board ENSOR UIDE... -
Page 42: Output Voltage Level
301900, R OCUMENT EVISION Figure 16: Bottom view of oscillator board with headers indicated Output Voltage Level There are three, 3-pin jumper-header configurations that control the output voltage level. While referring to Table 3, install one jumper at each connector location to select the voltage output level for that axis. For the 2.5V output, install the jumper between pins 1 and 2;... -
Page 43: Power & Noise Configurations
301900, R OCUMENT EVISION Table 3: Output voltage-level jumper settings Axis Header 2.5V Output 10V Output Power & Noise Configurations There are three 12-pin jumpers that route the sensor output signals to the desired amplifier – low-power or low-noise. They also configure the output as either single-ended or differential. -
Page 44: Low-Noise Power Control
301900, R OCUMENT EVISION The figure below shows the jumpers installed for each of the three valid configurations. Figure 17: Jumper configurations Pin 2 Pin 12 Low power amplifier Pin 1 Pin 11 White Square Pin 2 Pin 12 Low-noise amplifier with single-ended output... -
Page 45: Power Supply Options
301900, R OCUMENT EVISION Power Supply Options The triaxial EpiSensor is offered in two power supply configurations; the standard dual supply configuration and the optional single supply configuration. The jumpers for these options are set at the factory and should not be changed. Caution: Damage to instrument. -
Page 46: Calibration Coil Test Connector
Small, white connectors are used for access to the individual calibration coils for X, Y and Z sensor calibration. They can be purchased from Kinemetrics (P/N 851461) or from the manufacturer – (Molex P/N 51021-0200). Table 7: Calibration coil test headers... - Page 47 301900, R OCUMENT EVISION 3. After checking that the O-ring is not pinched, screw the three large seal screws through the cover and tighten to a torque of 18-20 inch pounds (2.26-2.94 N.m). 4. Re-install the connector nut and tighten to a torque of 18-20 inch pounds (2.26-2.94 N.m).
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Page 49: Maintenance
By tilting the sensor, an acceleration of " 1g can be measured. Kinemetrics can supply a tilt table and training in order to perform more accurate calibrations/verifications in the field. Kinemetrics can also provide on-site or factory calibrations traceable to national standards. -
Page 50: Desiccant Replacement
This is shown by the ink on the desiccant pack turning from its original blue to pink. When this happens it should be replaced. New desiccant can be ordered from Kinemetrics as P/N 700403. Be sure to follow electro-static discharge (ESD) precautions when the sensor case is opened. -
Page 51: Reference
301900, R OCUMENT EVISION 5. Reference Theory of Operation The EpiSensor consists of three orthogonally mounted force balance accelerometers (FBAs) – X-axis, Y-axis and Z-axis – inside a sensor casing. Each accelerometer module is identical and plugs into a board that provides the final output circuit and the carrier oscillator. -
Page 52: Working Principle
301900, R OCUMENT EVISION Working Principle The oscillator applies an AC signal of opposite polarity to the two moving capacitor plates (also referred to as "the moving mass"). When the accelerometer is "zeroed" and when no acceleration is applied, these plates are symmetrical to the fixed central plate and no voltage is generated. -
Page 53: Features
301900, R OCUMENT EVISION The low-noise amplifier (selected by jumpers) provides a lower noise output at the cost of additional power. This amplifier again amplifies the signal by 1 or 4 to give a single-ended output of either "2.5V or "10V. A second amplifier is also present which inverts the signal from the first and can be connected to the negative output lead (via jumpers). -
Page 54: Pole Zero Representation Of The Episensor
Figure 19 on the next page show the amplitude, phase and step response of this pole zero representation. Additional references to pole zero responses and damping are available on the Kinemetrics website. Application Note 39 gives the response of the FIR filters used in the Altus Recorders. The FIR filter response dominates the overall system response at sample rates up to 250 samples per second. -
Page 55: Figure 19: Amplitude, Phase, And Step Response Of The Episensor
301900, R OCUMENT EVISION Figure 19: Amplitude, phase, and step response of the EpiSensor response model Frequency Response: Amplitude Frequency Frequency Response: Phase -100 -120 -140 -160 -180 Frequency ENSOR UIDE... -
Page 56: Polarity Conventions
Positive polarity is the international standard in weak motion seismology. With Kinemetrics' decision to adopt a positive polarity with the EpiSensor FBA, it is now the standard in strong motion seismology as well. -
Page 57: Figure 20: X, Y And Z Coordinates
301900, R OCUMENT EVISION Figure 20: X, Y and Z coordinates Y-AXIS NORTH/SOUTH X-AXIS EAST/WEST Z-AXIS VERTICAL ENSOR UIDE... -
Page 58: Electrical Interface
301900, R OCUMENT EVISION Electrical Interface Table 8: Input connections Name Description X + signal Output + X axis signal output X – signal Output – X axis signal output X shield X shield Y + signal Output + Y axis signal output Y –... -
Page 59: Advanced Installations
EVISION 6. Advanced Installations This chapter contains information on various advanced installation topics that may apply to your system. Kinemetrics’ Service Group can provide additional information on these topics. CE Compliant Installations The EpiSensor has not yet been CE certified. -
Page 60: The Etna
If this is the configuration you wish to use, we suggest using one of the following solutions: Run only one of the EpiSensors on the low-noise setting Contact Kinemetrics about modifying the ADC/DSP board to supply more power Use the single supply option on the EpiSensors, powering the units from the +12V battery power on the K2 or Mt. -
Page 61: Long Cables
Altus unit’s power output is only 11.6V. This limits cable length to 50 feet for the standard Belden cable (P/N 9874) and 100 feet for the Kinemetrics 700045 cable. Note that this configuration will seldom be used with standard Altus recorders because the output does not match the 2.5V input of the recorder. -
Page 62: User-Supplied Cable
301900, R OCUMENT EVISION User-Supplied Cable If you are using your own cable, be sure that is has sufficient conductors of the required wire gauge for your installation and that it provides adequate shielding to maintain the noise performance of the EpiSensor. The conductors used for the signals and the control signals (Cal and CCE) carry little current. - Page 63 EpiSensor end. This may be required if significant current flows in the shield between the two grounds. This may result in better system noise performance. However, Kinemetrics cannot be responsible for any EMI/RFI emissions that may occur due to this change in the cabling. The EpiSensor should still be grounded using the grounding stud on the flange.
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Page 64: Use With Non-Kinemetrics Data Loggers
Use with Non-Kinemetrics Data Loggers If you are using the EpiSensor with a non-Kinemetrics data logger you must match the power, calibration and output of the EpiSensor with that of the recorder. Kinemetrics Services Group can provide help with this and can also supply conversion boxes to interface to some commonly used seismic instrumentation. -
Page 65: Table 10: Current Requirements
301900, R OCUMENT EVISION Table 10: Current requirements Dual "12V Single 12V Sensor Quiescent Current Supply Supply Low-power unit 12 mA 65 mA Unit with low low-noise amplifiers enabled 35 mA 130 mA Sensor Full-scale Output Current 1 Axis 3 Axes Restoring current for coils per g 2.5 mA/g 7.5 mA/g... -
Page 66: Output Voltage
301900, R OCUMENT EVISION Table 11: Current requirements Examples Quiescent Max Load Quiescent Max Load Dual "12V Dual "12V Single 12V Single 12V Supply Supply Supply Supply EpiSensor 1g low-power amplifier 2.5V single-ended output 12 mA 25 mA 65 mA 104 mA EpiSensor 2g low-noise amplifier, 20V differential output... -
Page 67: Ground Loop Prevention
Cal line will also damage the unit. Ground Loop Prevention When the EpiSensor is used with non-Kinemetrics digitizers it is essential that the ground connections be carefully planned in order to prevent ground loops. -
Page 68: Custom Cable Assembly
Belden cable (P/N 840356). The instructions assume the cable has already been pulled and routed through appropriate conduit. If possible, Kinemetrics recommends that cables be routed in grounded metal conduit. Alternatively, plenum-rated cables can be used. -
Page 69: Table 12: Parts For Recorder Mating Connector Assembly
301900, R OCUMENT EVISION Initial Assembly of the Altus Recorder End To assemble the recorder-end of the 840356 cable, open the assembly kit and pick out the parts listed in Table 12 and illustrated left-to-right in Figure 22. Keep the other parts in the assembly kit bag; you will need them later. To install mating connector P/N 851119, you require the following: Table 12: Parts for recorder mating connector assembly Part Name... -
Page 70: Figure 22: Parts For Recorder-End Mating Connector Assembly
301900, R OCUMENT EVISION Figure 22: Parts for recorder-end mating connector assembly Note: In place of the 3/8" foil, you may have received two 1"-wide foil tapes. If your kit contains this substitution, then make tape that is approximately 3/8" wide as follows: 1. -
Page 71: Cable Assembly Instructions
301900, R OCUMENT EVISION With the parts you need pulled out of the kit and the proper width of tape prepared, begin assembling the recorder-end mating connector. 1. Strip off 3/4" of the outer black rubber tubing on one end of the Shrink-N-Shield tubing (shown on the right side of Figure 24). -
Page 72: Figure 24: Recorder Cable End With Outer Pvc Jacket Removed
301900, R OCUMENT EVISION 3. Spread the shielded pairs of wire outward from the center rope cord, as shown in Figure 24. Figure 24: Recorder cable end with outer PVC jacket removed 4. Cut off and discard the center rope, cellophane and white string. Cut them back as near as possible to the "new"... -
Page 73: Figure 26: Detail Of Foil Shields, Drain Wires And Foil Tape
301900, R OCUMENT EVISION Figure 26 illustrates the steps described below: 1. Cut off all but 3/8" of foil shield from each of the twisted-wire pairs. 2. Separate out the non-insulated, stranded drain wires and pull them toward the cable center. 3. -
Page 74: Figure 27: Drain Wires Twisted Together
301900, R OCUMENT EVISION Figure 27: Drain wires twisted together 9. Wrap and solder the single drain wire to the stripped area of the black wire, then trim off all excess drain wires, as shown in Figure 28. Figure 28: Drain wire-to-black wire connection 10. -
Page 75: Figure 29: Outer Foil Tape And Drain-Wire Shrink Tubing
301900, R OCUMENT EVISION Figure 29: Outer foil tape and drain-wire shrink tubing 3. Now insert the twisted pairs of wires into the grommet. Use the schematic in Figure 30 to find the proper wire-to-solder cup locations. Be sure to follow the proper half of the schematic below, depending on whether you are currently assembling the recorder end or the EpiSensor end of the cable. -
Page 76: Final Assembly Of The Recorder End
301900, R OCUMENT EVISION 4. Once the wires have been run through the correct holes in the grommet, strip 1/8" off the wire tips, then solder tin them as shown in Figure 31. Figure 31: Foil tape and stripped-and-tinned wires Final Assembly of the Recorder End To complete the final assembly of the recorder end of the cable, solder the wires into the recorder mating connector:... -
Page 77: Figure 33: Wrapping Foil Tape Around Outside Of The Connection
301900, R OCUMENT EVISION Figure 33: Wrapping foil tape around outside of the connection Slide the Shrink-N-Shield tubing forward, as shown in Figure 34, then up over the plastic grommet ring. Figure 34: Slipping Shrink-n-Shield tubing into place Carefully place the tubing so its cloth shield is up against-but not covering over-the connector threads, as shown in Figure 35. -
Page 78: Testing Connector Assembly #1
301900, R OCUMENT EVISION Figure 36: Completed assembly of recorder-end of cable 840356 Testing Connector Assembly #1 Now do a "buzzing out" test on the recorder-end of the cable to make sure the correct wires are connected to the correct solder cups (per the schematic in Figure 30), and that none of the wires were shorted in the assembly process. - Page 79 301900, R OCUMENT EVISION 4. Disconnect the DVM lead from connector pin L on the recorder end and, with the other DVM lead still connected to pin M, confirm that pin M is infinite with respect to all the other connector pins. You have now "buzzed out"...
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Page 80: Initial Assembly Of The Episensor End
301900, R OCUMENT EVISION Initial Assembly of the EpiSensor End Now that the connector on the recorder end of the cable, you should now have only those items necessary for assembling the EpiSensor end of the cable left in the assembly kit. To make sure, select the parts listed in Table 14 and illustrated left-to-right in Figure 37. -
Page 81: Figure 38: Preparing 3/8"-Wide Foil Tape From 1" Foil Tape
301900, R OCUMENT EVISION If your kit contains this substitution, then do the following: 1. Divide one of the 1" x 3" pieces into thirds the long way (as shown in the middle grouping in Figure 38), so you have three 3"-long pieces. -
Page 82: Final Assembly Of The Episensor End
301900, R OCUMENT EVISION Table 15: Slide parts over cable jacket in this order: Part Name KMI P/N Thermofit tubing 851186 Connector strain relief grommet Part of 851370 Connector back shell Part of 851370 Shrink-n-Shield tubing 851366 Final Assembly of the EpiSensor End The wires in the "daisy chain"... -
Page 83: Figure 40: Connection Wrapped With Pvc Tape
301900, R OCUMENT EVISION 7. Insert the single, unjoined end of wire #1 into pin R. 8. Insert the joined end of wire #1/#2 into pin P. 9. Insert the joined end of wire #2/#3 into pin N. 10. Insert the remaining single end of wire #3 into the pin K grommet alongside the blue wire. -
Page 84: Figure 41: Wrapping Foil Tape Around Outside Of The Connection
301900, R OCUMENT EVISION Note: The 1"-wide foil tape must be in tight contact with the 3/8"-wide foil tape. Figure 41: Wrapping foil tape around outside of the connection Figure 42: Cable with Shrink-n-Shield tubing (outer tubing trimmed back to show screen mesh) Slide the Shrink-n-Shield tubing up over the grommet. -
Page 85: Figure 43: Shrink-N-Shield Tubing Shrunk And In Position
301900, R OCUMENT EVISION Figure 43: Shrink-n-Shield tubing shrunk and in position Now, using even heat, shrink the tubing until it fits tightly in place over the Shrink-n-Shield and foil tape (as shown in Figure 43), and begin the final assembly process: 1. -
Page 86: Testing Connector Assembly #2
301900, R OCUMENT EVISION Testing Connector Assembly #2 You should also do a "buzzing out" test on this end of the cable, to make sure you connected the proper wires to the proper solder cups (per the schematic in Figure 30), and that no wires have gotten shorted in the assembly process. - Page 87 301900, R OCUMENT EVISION To test the connection of the wire shields to the EpiSensor-end connector shell: 1. At the recorder end, have another technician take the recorder connector and use a test-lead jumper to connect pin L to the recorder-end connector shell.
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Page 89: Appendix
7. Appendix Table 16: EpiSensor specifications Type Triaxial force balance accelerometer Dynamic range 155 dB + (EpiSensor noise model available from Kinemetrics) Bandwidth DC to 200 Hz Calibration coil Standard User-selectable at " 0.25g, " 0.5g, " 1g, Full-scale range "...
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