Trig-Tek™ 203PC-1 Charge Amplifier User Manual
Contents
1. Maximum Capacity for Fullscale Output at 20 kHz 0 033 uf Amplitude Linearity 1 of best straight line approximation of output vs input amplitude Amplitude Accuracy Freq Response 2 of reading 1 of FS in series with selected filter Introduction 1 4 Astronice Test Systems Publication No 980982 Rev A 203PC 1 User Manual Noise 0 05 pC maximum with 1 0 pC g sensitivity Noise increased 0 006 g 1000 pF of additional capacity at the input Harmonic Distortion Less than 1 DC Offset Less than 10 mV Connector 18 pin PTO 24 14 18S and BNC Velocity Output Voltage Max 10 Volts RMS Sensitivity 100 mV RMS Peak Inch sec Impedance Less than 25 Ohms 10 mA max Maximum Capacity for Fullscale Output at 2 Hz 0 33 uf Frequency Response 3 25 Hz to 3 000 Hz of a 6 dB oct slope in series with any selected filtering Plug in capability will be provided to extend low end response to 5 Hz DC Offset Less than 10 mV Connector 18 pin PTO2A 14 18S and BNC Displacement Output Level 0 10 Volts RMS Impedance Less than 5 Ohms Sensitivity 100 mV RMS Peak MIL Maximum Capacity for Fullscale Output at 2 kHz 0 33 uf Frequency Response 3 30 Hz to 1 000 Hz of a 12 dB slope 5 25 Hz to 3 000 Hz of a 12 dB slope in series with the selected LOW PASS filter Plug in2. e AA AV AD or VV VD e Six Fullscale FS Ranges e 115 or 230 V RMS Power Asironics Test Systems Introduction 1 1 203PC 1 User Manual Introduction 1 2 Publication No 980982 Rev A CHARGE AMPLIFIER lus MODEL 203PC 1 amp LEVEL METER 15 EG ee SENSITIVITY INLINE SE 3 HIGH PASS PET PASS CUTOFF Hz I f cUTOFF Khz f Figure 1 1 203PC 1 Charge Amplifier Astronice Test Systems Publication No 980982 Rev A 203PC 1 User Manual Description The 203PC 1 double integrates the 10 mV RMS g acceleration output signal and provides a velocity and displacement output with a sensitivity of 100 mV RMS PEAK Inch Sec and 100 mV RMS Peak MILS When MV IPS is selected the amplifier will operate with ICP type velocity pickup with the CURR ON or a standard velocity pickup with the CURR OFF The X1 X10 DC OUTPUT switch selects either X1 or X10 multiple for the 10 mV g 100 MV IPS or MILS at the DC output An EXTERNAL CAL signal can be selected by the front panel CAL switch or by the CAL Control Input rear panel An internal switch has three positions A OUT V to place the Low Pass Filter in the Acceleration ahead of the velocity path in A OUT or behind the velocity integrator in the V position A second internal switch marked V D or DC will place the High Pass Filter at the velocity output for V at the displacement output for D and in the DC path only in the DC
3. STRONICS TEST SYSTEMS Trig Tek 203PC 1 Charge Amplifier User Manual Publication No 980982 Rev A Astronics Test Systems Inc 4 Goodyear Irvine CA 92618 Tel 800 722 2528 949 859 8999 Fax 949 859 7139 atsinfo astronics com atssales astronics com atshelpdesk astronics com _http Awww astronicstestsystems com Copyright 2011 by Astronics Test Systems Inc Printed in the United States of America All rights reserved This book or parts thereof may not be reproduced in any form without written permission of the publisher THANK YOU FOR PURCHASING THIS ASTRONICS TEST SYSTEMS PRODUCT For this product or any other Astronics Test Systems product that incorporates software drivers you may access our web site to verify and or download the latest driver versions The web address for driver downloads is http www astronicstestsystems com support downloads If you have any questions about software driver downloads or our privacy policy please contact us at atsinfo astronics com WARRANTY STATEMENT All Astronics Test Systems products are designed to exacting standards and manufactured in full compliance to our AS9100 Quality Management System processes This warranty does not apply to defects resulting from any modification s of any product or part without Astronics Test Systems express written consent or misuse of any product or part The warranty also does not apply to fuses software non rechargeable batter
4. position The unit has overload circuits to alert if fullscale peak levels are exceeded Figure 1 2 shows a block diagram of the circuit operation 500 50 100 10 O s s O wt Gr ti FULKSGALE FURAGCALE I l 1 I i 1 1 I 300 300 f vol 1 1 1 l 1 rej AAA vu soucr Figure 1 2 203PC 1 Charge Amplifier Block Diagram Astronics Test Systems Introduction 1 3 203PC 1 User Manual Publication No 980982 Rev A Specifications Input Connector BNC or 3 pin PT02A 8 33P charge Sene 0 100 to 199 9 pC g mV g or MV IPS with three selectable ranges X0 1 X1 and X10 Frequency Response 3 from 5 Hz to 40 000 Hz referred to 100 Hz filters OUT Overload Recovery 100 overdrive of a 1 ms half sine input pulse will cause no effect at the output except clipping Amplitude Stability vs Temperature Less than 2 change from 30 to 130 F Amplitude Stability vs Input Capacity Less than 0 1 change per 1 000 pF Shunt Resistance Will operate with any input impedance above 200 kilohms Filtering Low Pass 48 dB per octave or greater roll off with cutoffs selectable from 100 Hz to 20 kHz in 100 Hz steps Filtering High Pass 48 dB oct roll off from 5 Hz to 999 Hz in 1 Hz steps Acceleration Output Voltage max 10 Volts RMS Sensitivity 10 mV RMS Peak g Impedance Less than 25 Ohms 10 mA max
5. sorger ek bars ac ei to barato etario 3 1 gi rele se A st 3 2 A O ran 4 1 Galibration Tes ta 4 1 TOSTEGJUPMONt iia 4 1 SWITCI SONGS adidas 4 1 bront Panelni bs caveat cued seve ba betes mm g gggggggggggggg 4 1 Asironics Test Systems 203PC 1 User Manual Publication No 980982 Rev A Internal u iii ii 4 2 Charge Converter AdiUustment iiE conca nn cnc kk kk E kk a kk ka kk a kk KA kk KA KA KA KA KA KA HAA KWA 4 2 Meter and Output Units Scaling u kk kk keka kek kek KAKA KAKA KAKA KAKA KAKA KAKA KA 4 2 ii Astronics Test Systems Publication No 980982 Rev A 203PC 1 User Manual List of Figures Figure 1 1 203PC 1 Charge Amplifler LE Ek kk kk kk kk KE kr KA KAKA AKA kk KA KA 1 2 Figure 1 2 203PC 1 Charge Amplifier Block Diagram uii kk kk k ke 1 3 Figure 4 1 Switch and Resistor Adjustment Locations ccccccceeeeeseeeeeeeeeeaeeeeeeeseeeeeseaeeesaeeeeneeee 4 2 Asironics Test Systems 203PC 1 User Manual Publication No 980982 Rev A This page was left intentionally blank iv Astronics Test Systems Publication No 980982 Rev A 203PC 1 User Manual DOCUMENT CHANGE HISTORY Revision Date Description of Change A 06 07 2011 Document Control release Astronics Test Systems 203PC 1 User Manual Publication No 980982 Rev A This page was left intentionally blank vi Astronics Test Systems Publication No 980982 Rev
6. 19 99 for each range selected by the multiplier switch FULL SCALE UNITS Switch Selects 10 20 50 100 200 or 500 g s RED and 1 2 5 10 20 or 50 for IPS or MILS as fullscale units for the LEVEL meter Selects either single ended isolated or SE ISO DIFF Switch ON differential configuration at the input when CURR OFF in pC g mode and CURR ON or OFF in the mV g or mV IPS modes DIFF BAL ADJ A7 W18A Sets the Balance on the DIFF Input R2 on A7 W18A Adjustment to optimize the COMMON mode ISO Adjustment A7 W18A rejection when using the ISO Input Mode R1 on A7 W18A IN LINE FILTER GAL Switch Turns ON OFF the in line filter and CAL mode IN LINE FILTER L M H Switch L 5 kHz cutoff works with IN LINE Switch On M 10 kHz cutoff H 20 kHz cutoff Factory Adjust Asironics Test Systems Introduction 1 7 203PC 1 User Manual Publication No 980982 Rev A Indicators DVM 3 1 2 digital panel meter indicating g s or IPS peak or MILS pk pk llluminates when the CAL mode is selected CAL Light red either local or remote OVERLOAD OL LED Accel Vel Displ or DC illuminates when 4 ea red parameter is overloaded Mode selected pC g mV g or mV IPS MODE LED 8 er LED illuminate 77 J MULTIPLIER DP LED 3 yellow Selected decimal point LED illuminates Power 120 or 240 V RMS 50 400 Hz 15 watts nom
7. A 203PC 1 User Manual Chapter 1 Introduction The 203PC 1 Charge Amplifier Figure 1 1 covers the frequency range from 3 Hz to 40 000 Hz It double integrates the 10 mV g acceleration output signal to provide a velocity and displacement output with a sensitivity of 100 mV per IN SEC or MILS The charge amplifier operates with high temperature accelerometers where pyroelectric effects may be encountered A four position thumbwheel sensitivity control in conjunction with a three position toggle switch accommodates pickups having sensitivities from 0 100 to 199 9 pC g mV g or mV ips A MODE switch selects pC g AA AV or AD mV g AA AV or AD mV IPS VV or VD The DC output switch selects X1 or X10 mV unit for g s IPS or MILs at the DC output An external CAL signal can be selected by a front panel CAL switch or by the CAL Control Input rear panel A Low Pass Filter has 100 Hz to 19 9 kHz cutoff frequencies in 100 Hz steps and a High Pass filter has 1 to 999 Hz cutoff frequencies in 1 Hz steps A digital front panel meter displays selectable fullscale levels of 10 20 50 100 200 or 500 g s pk or 1 2 5 10 20 or 50 IPS or MILS pk The 203PC 1 is packaged as a plug in module Either a single chassis or one that will accept up to six modules is available Features include e PCor mV Mode e Digital Level Indicator e Accel or Vel Input e 0 100 199 9 Sensitivity e HP and LP Filters e Plug in module e Overload Detection
8. fails to operate satisfactorily shows visible damage has been stored under unfavorable conditions has sustained stress Do not operate until performance is checked by qualified personnel Publication No 980982 Rev A 203PC 1 User Manual Table of Contents Chapter Tass 1 1 MPV CE ON N daa 1 1 Bal DER DYA DD a hin oti i Rin ei A 1 3 Spec ON a 1 4 O a a eo Le 1 4 Acceleration Output trial tsar 1 4 Velocity QUIPUE Wi A A eeo 1 5 Displacement OUtDUL 3 5 x nnmy len datada 1 5 DC OUTPUT QISA MER e ee EEE 1 6 COM Sia A a a daa 1 7 INICIOS a AA A AA A coe el tei 1 8 Ie A aia 1 8 SIZE 1 8 CGhapler2arsrau a eee le 2 1 ODeLAL ON sy si ori i ka Pl x r d keva ka Wel K RE WEY VU kud Da Wa kwa kud W KE WA WE Dl E d u RE WE W SE YEW A DEVE KE WE VE SE KE U DEY EY EYA 2 1 MO DE Witch a aw ie a va E ea A eee 2 1 SENSITIVITY SW C s yiyi null vie uanmeldt 2 1 LEVEL Switch 4x344 yny 1 A AA a eee 2 2 FULL SCALE UNITS Switch 1 a 14 44 5331342 i1yay i sk eun bal cnn Aa a cnc 2 2 DC Output Switch XA AX TD ac Ghee enn ae aeons 2 2 HIGH PASS Within aaa 2 2 LOW PASS SW lO Hiii sieniin hi cate a dad ee 2 2 SE ISO DIFF and OFF CURR ON SwitC uuE kk kk nano cnn kek KAKA KA KARA KAKA KAKA 2 3 GAL MOder ia N N N A E ea 2 3 Chapter 3 GR 3 1 Performance Testo isin deen nen ened 3 1 TOStEGUPMEN zee Fes e ita 3 1 SWITCH Settings DN DA rrr ba ota 3 1 Front Panel 3 1 Internal
9. 191 Function Generator Trig Tek 346B Calibrator Switch Settings Front Panel Place the MODE switch to mV g AA the ON CURR OFF switch to OFF the FULL SCALE UNITS switch to 100 the DC OUTPUT switch to X1 the LOW PASS FILTER Switch to 19 9 kHz the HIGH PASS FILTER Switch to 010 Hz the MULTIPLIER switch to X10 the SENSITIVITY Thumb Switch to 100 0 and the In Line Filter switch is OFF center position Internal CAUTION The S1 115 230 VAC switch must be at the proper setting If 230 V Power is applied when this switch is set for 115 V RMS circuitry will be damaged e HIGH PASS and LOW PASS Filters S2 and S3 should be in same position as during NORMAL operation HP filter set to 20 Hz and LP filter set to 19 9 kHz Astronics Test Systems Performance Test 3 1 203PC 1 User Manual Publication No 980982 Rev A e 4 DC Output Selector NOR FS to NOR e Connect the power cord of the rack assembly into the power line and turn the POWER switch at the left of the rack to PWR Procedure Connect a 61 4 0 2 Hz sinewave with a level of 707 0 5 millivolts RMS on the ACCEL INPUT jack 2 Connect the AC Voltmeter to the ACCEL OUTPUT jack 3 Observe an indication of 100 0 3 0 millivolts RMS on the AC voltmeter The front panel meter should indicate 10 0 0 3 g s Place the SENSITIVITY MULTIPLIER switch to X1 5 Observe an indication of 1000 0 30 millivolts RMS on the AC voltmeter The front panel meter should i
10. at X10 the DC output sensitivities are all 10 times greater The DC output has a switch S5 that permits selecting either FS units Volt or NORM normalized mV unit The units are set in the NORM mode at the factory HIGH PASS Switch The HIGH PASS filter thumb has three sections to select fiom 1 Hz to 999 Hz 3dB frequency cutoff The filter is an 8 section Butterworth An internal HP Filter Selector has three settings V Vel D Displ and DC DC Output It is set at the factory for D to filter the displacement output only LOW PASS Switch Operation 2 2 The LOW PASS LP filter three section thumb switch selects from 00 1 to 19 9 kHz 3dB frequency cutoffs in 100 Hz steps The filter is an 8 section Butterworth An internal LP Filter selector has three settings A Acceleration OFF and V Velocity It is set at the factory for V to filter velocity and displacement CAUTION The thumb switch used does not provide stops Only the 0 and 1 of the most significant digits used Astronics Test Systems Publication No 980982 Rev A 203PC 1 User Manual SE ISO DIFF and OFF CURR ON Switch This switch selects single ended input SE isolated ISO or differential DIFF input when the pC g mode is selected The SE position establishes the signal ground at amplifier input In the ISO mode the amplifier has common mode rejection and in the DIFF the unit will operate with sensors that have a differential output When either th
11. d the FULL SCALE switch to 50 IPS Set the VEL FS ADJ R5 for a 5 00 0 03 Volts indication on the AC Voltmeter the front panel should read 50 0 1 IPS Place the MODE switch to AD pC g Set the generator for a 98 9 0 2 Hz Connect the AC Voltmeter to the DISPL OUTPUT Pin 11 of P1 DISPL OUTPUT of the Connector Board Assembly Set the DISPL FS ADJ R6 for a 5 00 0 05 Volts indication on the AC Voltmeter and the front panel meter should read 50 1 5 MILS Pk Pk Place the FULL SCALE UNITS switch to 10 g s and the MODE switch to AA Connect the generator to the CALIB INPUT Pin 5 of PI Set the generator frequency for approximately 150 Hz and the level for 707 0 5 0 mVRMS Depress the CAL switch to CAL Set CAL ADJ R7 for a 10 00 0 05 g s indication on the front panel meter Astronics Test Systems Calibration Test 4 3 203PC 1 User Manual Publication No 980982 Rev A This page was left intentionally blank Calibration Test 4 4 Astronics Test Systems
12. e mV g or mV IPS modes are selected this switch will also turn the sensor excitation current ON or OFF CAL Mode When in the CAL mode the CAL light will illuminate and the signal at the calibrate jack at rear panel will be connected to the input The required level for the different sensitivity settings must be calculated The CAL input sensitivity is 1 mV pC The CAL mode is selected either by putting the CALIB CONTROL input rear panel at ground potential to CAL all channels in the rack or by placing the IN LINE CAL switch to CAL to select CAL to the single unit When in CAL mode the MODE switch will determine the input sensitivity See Input Sensitivity in the Specifications section of Chapter 1 Astronics Test Systems Operation 2 3 203PC 1 User Manual Publication No 980982 Rev A This page was left intentionally blank Operation 2 4 Astronics Test Systems Publication No 980982 Rev A 203PC 1 User Manual Chapter 3 Performance Test The 203PC 1 Charge Amplifier is a plug in module with the circuitry on a single printed circuit board The 203PC 1 may be located into a single unit cabinet or one that holds six units The following procedure is for a single unit and must be repeated for each module In the event that a reading is out of tolerance the unit may require calibration see Chapter 4 Annual calibration is recommended Test Equipment Note Equivalent test equipment can be substituted AC DC Voltmeter Keithley
13. ector Board Assembly TT 3408 to provide an interface for monitoring For adjustment location refer to Figure 4 1 Test Equipment Note Equivalent test equipment can be substituted AC or DC Voltmeter Keithley 191 Function Generator Trig Tek 346B Calibrator Power Cord Assembly TT 1535 Assembly Printed Circuit Connector TT 3408 Board Assembly Place the module to be tested on the bench and plug the Printed Circuit Connector Board Assembly TT 3408 to the printed board connector at the rear of the module and the Power Cord Assembly TT 1535 to the power receptacle Connect to 115 VAC power Switch Settings Front Panel Place the SE ISO DIFF switch to SE the MODE switch to pC g AA the IN LINE Blue Filter switch OFF center position the FULL SCALE UNITS switch to 100 the DC OUTPUT switch to X1 the HIGH PASS FILTER switch to 010 Hz and the LOW PASS FILTER switch to 19 9 kHz Place the MULTIPLIER to XIO the SENSITIVITY Thumb Switch to 100 0 Asironics Test Systems Calibration Test 4 1 203PC 1 User Manual Publication No 980982 Rev A Internal Az R5 R6 S2 S3 OQO HIGH PASS and LOW PASS Filters S2 and S3 should be in same position as during NORMAL Operation HP filter set to 20 Hz and LP filter set to 19 9 kHz S4 DC Output Selector NOR FS to NOR Charge Converter Adiustment 1 Connect the AC Voltmeter to Pin 8 of P1 ACCEL OUTPUT of the connector board assembly Connect a 100 5 Hz signal wi
14. ies damage from battery leakage or problems arising from normal wear such as mechanical relay life or failure to follow instructions This warranty is in lieu of all other warranties expressed or implied including any implied warranty of merchantability or fitness for a particular use The remedies provided herein are buyer s sole and exclusive remedies For the specific terms of your standard warranty contact Customer Support Please have the following information available to facilitate service 1 Product serial number 2 Product model number 3 Your company and contact information You may contact Customer Support by E Mail atshelpdesk astronics com Telephone 1 800 722 3262 USA Fax 1 949 859 7139 USA RETURN OF PRODUCT Authorization is required from Astronics Test Systems before you send us your product or sub assembly for service or calibration Call or contact Customer Support at 1 800 722 3262 or 1 949 859 8999 or via fax at 1 949 859 7139 We can also be reached at atshelodesk astronics com If the original packing material is unavailable ship the product or sub assembly in an ESD shielding bag and use appropriate packing materials to surround and protect the product PROPRIETARY NOTICE This document and the technical data herein disclosed are proprietary to Astronics Test Systems and shall not without express written permission of Astronics Test Systems be used in whole or in part to solicit quotat
15. inal o N O 7 inches high x 2 7 inches wide x 13 inches deep up to six units mounted side by side in standard 19 inch wide rack Introduction 1 8 Astronice Test Systems Publication No 980982 Rev A 203PC 1 User Manual Chapter 2 Operation The 203PC 1 Charge Amplifier Figure 1 1 is in a modular package with a self contained power supply Insert the amplifier into one of the six rack spaces of a six module rack or the single module cabinet If necessary set switch S1 on the internal circuit board located near the transformer for the voltage to be used Connect the AC line into 115 or 230 Volts RMS 60 Hz power The rack power is controlled by the switch on the power panel PLACE THIS SWITCH TO POWER CAUTION The S1 115 230 switch must be at the proper setting If 230 V Power is applied when this switch is set for 115 V RMS circuitry will be damaged MODE Switch The 203PC 1 has three input modes pC g mV g mV IPS The MODE switch selects the mode and the units In the pC g mode the units to the meter and DC output are AA ACCEL g s peak AV VEL IPS peak or AD DISPL MILS Peak The same for the mV g mode When the VV or VD mode is selected the meter and DC output units are VV IPS peak or VD MILS Peak When operating in the mV g or VV or VD modes the excitation current can be turned ON or OFF by the CURR ON OFF switch When the CURR OFF position is selected in the VV or VD mode the i
16. ions from a competitive source or used for manufacture by anyone other than Astronics Test Systems The information herein has been developed at private expense and may only be used for operation and maintenance reference purposes or for purposes of engineering evaluation and incorporation into technical specifications and other documents which specify procurement of products from Astronics Test Systems TRADEMARKS AND SERVICE MARKS All trademarks and service marks used in this document are the property of their respective owners e Racal Instruments Talon Instruments Trig Tek ActivATE Adapt A Switch N GEN and PAWS are trademarks of Astronics Test Systems in the United States DISCLAIMER Buyer acknowledges and agrees that it is responsible for the operation of the goods purchased and should ensure that they are used properly and in accordance with this document and any other instructions provided by Seller Astronics Test Systems products are not specifically designed manufactured or intended to be used as parts assemblies or components in planning construction maintenance or operation of a nuclear facility or in life support or safety critical applications in which the failure of the Astronics Test Systems product could create a situation where personal injury or death could occur Should Buyer purchase Astronics Test Systems product for such unintended application Buyer shall indemnify and hold Astronics Test Systems its officers em
17. ndicate 100 0 3 0 g s 6 Connect the DC voltmeter to the DC output 7 Observe an indication of 1000 20 millivolts DC on the DC voltmeter 8 Set the generator for a level of 70 7 0 5 mV RMS and place the DC 10 Connect the AC voltmeter to the VEL OUTPUT jack 12 11 13 14 21 22 23 24 Performance Test 3 2 QUTPUT switch to X10 Observe an indication of 1000 25 millivolts DC on the DC Voltmeter Set the generator for a level of 354 2 millivolts RMS 61 4 0 2 Hz Place the MODE switch to the mV g AV the FULLSCALE switch to 50 DC Output Switch to X1 Observe an indication of 5 0 0 15 Volts RMS on the AC voltmeter the front panel meter should indication 50 0 1 5 IPS Pk Set the generator for 98 9 0 2 Hz 15 16 17 18 19 20 Connect the AC voltmeter to the DISPL OUTPUT jack Observe an indication of 5 00 0 15 Volts RMS on the AC Voltmeter Place the MODE switch to mV g AD Observe an indication of 50 0 1 5 MILS Pk Pk on the front panel meter Place the MODE switch to mV g AA Set the generator for 3 54 02 Volts RMS level and a frequency of approximately 150 Hz at the ACCEL INPUT jack Observe an indication of 500 15 g s on the front panel meter Reduce the generator level to 7 07 05 millivolts RMS Place the FULL SCALE UNITS switch to 10 g s Observe an indication of 1 00 0 12 g s on the front panel meter Astronics Test Systems Publication No 980982 Rev A 203PC 1 U
18. nput impedance is set for 10 K Ohms All channels can be placed in the CAL mode by grounding the center pin of the CAL control jack rear panel or independently by depressing the CAL switch on the front panel of a unit When in the mV g mode the input can be used as voltage input by placing the CURR switch to OFF SENSITIVITY Switch The sensitivity thumb switch sets 0 100 to 199 9 sensitivity in three ranges The ranges are selected by the MULTIPLIER switch For example to set the 25 pC g place the multiplier switch for X10 and the sensitivity control for 025 0 CAUTION Only the 0 and 1 of the most significant digit will respond Astronics Test Systems Operation 2 1 203PC 1 User Manual Publication No 980982 Rev A LEVEL Switch The Level Meter is a 3 1 2 digit meter that monitors the input level for the units and fullscale selections FULL SCALE UNITS Switch The FULL SCALE UNITS switch has six positions that work in conjunction with the UNITS switch When the UNITS switch is in g s RED the FULL SCALE UNITS switch selects 10 20 50 100 200 or 500 g s as the fullscale units for the meter When the UNITS switch is at IPS or MILS the FULL SCALE UNITS switch selects 1 2 5 10 20 or 50 IPS or MILS as the fullscale units for the meter and DC output DC Output Switch X1 X10 The X1 position of the DC output switch scale the DC output for 10 mV g PK 100 mV IPS peak or 100 mV MILS Peak When the DC OUTPUT switch is
19. ployees subsidiaries affiliates and distributors harmless against all claims arising out of a claim for personal injury or death associated with such unintended use FOR YOUR SAFETY Before undertaking any troubleshooting maintenance or exploratory procedure read carefully the WARNINGS and CAUTION notices RISK OF ELECTRICAL SHOCK human life and safety and is capable of inflicting DO NOT OPEN personal injury CAUTION This equipment contains voltage hazardous to If this instrument is to be powered from the AC line mains through an autotransformer ensure the common connector is connected to the neutral earth pole of the power supply Before operating the unit ensure the conductor green wire is connected to the ground earth conductor of the power outlet Do not use a two conductor extension cord or a three prong two prong adapter This will defeat the protective feature of the third conductor in the power cord 1 Maintenance and calibration procedures sometimes call for operation of the unit with CAUTION power applied and protective covers removed Read the procedures and heed warnings a ra gt to avoid live circuit points Before operating this instrument 1 Ensure the proper fuse is in place for the power source to operate 2 Ensure all other devices connected to or in proximity to this instrument are properly grounded or connected to the protective third wire earth ground If the instrument
20. resistor capability will be provided to extend low end response to 5 Hz DC Offset Less than 10 mV Converter 18 pin PTO2A 14 18S and BNC Astronics Test Systems Introduction 1 5 203PC 1 User Manual Publication No 980982 Rev A DC Output Level 13 Volts DC max Impedance Less than 25 Ohms 10 mA max ar 10 or 100 mV peak g or 0 1 or 1 Volt peak sensitiviiy IPS or Peak MILS Linearity 1 FS Amplitude Accuracy Accel 2 of reading 1 FS Vel 4 of reading 1 FS Displ 5 of reading 1 FS Dynamic Range Accel 70 dB below full scale Vel 50 dB below full scale Displ 40 dB below full scale Connectors Introduction 1 6 18 pin PTO2A 14 18S and 3 pin PTO2A 8 335 Astronice Test Systems Publication No 980982 Rev A 203PC 1 User Manual Controls HP Filter Switch Three section thumb switch selects 1 to 999 Hz cutoff frequencies 48 dB oct Butterworth high pass filter LP Filter Switch Three section thumb switch selects from 00 1 to 19 9 kHz cutoff frequencies 48dB oct or greater Butterworth low pass filter in 100 Hz steps MODE Switch Selects INPUT modes pC g mV g mV IPS and the meter and DC input units AA AV AD or VV VD MULTIPLIER Input Range Selects X0 1 X1 or X10 multiplier for 1 00 Switch to 19 99 pC g mV g or mV IPS sensors SENSITIVITY Switch Selects charge sensitivity from 1 00 to
21. ser Manual 25 26 27 28 29 30 31 32 33 34 35 36 Connect the generator to the CALIB INPUT jack Set the generator frequency for approximately 150 Hz and the level for 707 0 5 0 millivolts RMS Place the MULTIPLIER switch to X10 and place MODE UNITS to AA Place the IN LINE CAL switch to CAL momentary for each reading Observe an indication of 10 0 0 3 g s on the front panel meter Place the MULTIPLIER switch to X1 and set Fullscale Switch to 100 Observe an indication of 100 0 3 0 g s on the front panel meter Place the MULTIPLIER switch to X0 1 FULLSCALE switch to 500 Observe an indication of 1000 30 g s on the front panel meter Set the SENSITIVITY thumb switch to 0 100 and the FULLSCALE UNITS switch to 500 MULTIPLIER TO X1 Observe an indication of 1000 30 g s on the front panel meter For testing CAL in other MODE positions see Input Sensitivity in the Specifications section of Chapter 1 for proper readings Astronics Test Systems Performance Test 3 3 203PC 1 User Manual Publication No 980982 Rev A This page was left intentionally blank Performance Test 3 4 Astronics Test Systems Publication No 980982 Rev A 203PC 1 User Manual Chapter 4 Calibration Test The 203PC 1 Charge Amplifier is a plug in module with the circuitry on a single printed circuit board Too calibrate remove the module and use the Module Power Cord Assembly TT 1535 to apply power and Printed Circuit Conn
22. th a level of 7 07 0 05 Volts RMS to the ACCEL INPUT connector Set the ACCEL ADJ R3 for a 1 000 0 005 Volts indication on the AC Voltmeter Meter and Output Units Scaling Short the ACCEL INPUT BNC Connect the DC Voltmeter to Pin 13 of P1 DC OUTPUT of the connector board assembly Set the zero ADJ R4 for a 0 5 millivolts indication on the DC Voltmeter 4 Connect the 7 07 03 Volts RMS signal at 100 Hz to Pin 17 of P1 ACCEL Calibration Test 4 2 Astronics Test Systems Publication No 980982 Rev A 203PC 1 User Manual INPUT of the Connector Board Assembly Set the DC FS ADJ R8 for a 1 000 0 004 Volts indication on the DC Voltmeter Set the METER ADJ through the hole on DVM board for a 100 0 0 5 g s indication on the front panel DVM Place the FULL SCALE UNITS switch on the 203PC 1 front panel to 200 Set Sensitivity Switch to X1 Set the generator output to 1 414 03 Volts RMS 8 Set the 2 20 ADJ R2 for an indication of 200 1 g s on the front panel Place the FULL SCALE UNITS switch switch to 500 Set Input Voltage to 3 54 4 03 Volts RMS 10 11 14 15 16 18 19 20 21 22 Set the 5 50 ADJ R1 for an indication of 500 1 g s on the front panel meter Connect the AC Voltmeter to Pin 10 of P1 VEL OUTPUT of the Connector Board Assembly and change the generator frequency to 61 4 and level to 3 54 V RMS Place the MODE switch on the 203PC 1 front panel to AV pC g an
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