HP-11153A-Manual 电路图.pdf

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1、I . : HP Archive . . This vintage Hewlett Packard document was preserved and distributed by www. Please visit us on the web ! . . On-line curator: Tony Gerbic RadioFans.CN 收音机爱 好者资料库 OPERATING AND SERVICE MANUAL MODEL 11153A TRUE R M S CONVERTER -hp Part No. 11 153A-90000 Copyright Hewlett-Packard C

2、ompany 1970 P.O. Box 301, Loveland, Colorado 80537 U.S.A. Printed: OCT 1970 RadioFans.CN 收音机爱 好者资料库 - u .: . .; Y - . CERTIFICATION The Hewlett-Packard Company certifies that this instrument was thoroughly tested and inspected and found to meet its published specifications when it was shipped from t

3、he factory. The Hewlett- Packard Company further certifies that its calibration measure- ments are traceable to the U.S. National Bureau of Standards to the extent allowed by the Bureaus calibration facility. WARRANTY AND ASSISTANCE All Hewlett-Packard products are warranted against defects in mater

4、ials and workmanship. This warranty applies for one year from the date of delivery, or, in the case of certain major compo- nents listed in the operating manual, for the specified period. W e will repair or replace products which prove to be defective during the warranty period provided they are ret

5、urned to Hewlett- Packard. No other warranty is expressed or implied. W e are not liable for consequential damages. Service contracts or customer assistance agreements are available for Hewlett-Packard products that require maintenance and re- pair on-site. For any assistance, contact your nearest H

6、ewlett-Packard Sales and Service Office. Addresses are provided at the back of this manual. 4 I 1 1 -3 1 RadioFans.CN 收音机爱 好者资料库 Model 11 153A Table of Contents . 8 ! I TABLE OF CONTENTS Section Page Section Page I . GENERALINFORMATION . 1-1 V . MAINTENANCE . 5-1 1.1 . Introduction . 1-1 1 4 . Speci

7、fications . 1-1 Section Page I1 . INSTALLATION . 2-1 2.1 . Introduction . 2-1 2.2 . Initial Inspection . 2-1 2.3 . Installation . 2-1 2 4 . Repackaging for Shipment . 2-2 Section Page I11 . OPERATING INSTRUCTIONS . 3-1 3.1 . Introduction . 3-1 3.2 . AC Voltage Measurements . 3-1 5.1 . Introduction .

8、 5-1 5.2 . Test Equipment Required . 5-1 5.3 . Performance Checks . 5-1 5 4 . AC Voltage Accuracy Checks . 5-1 5.7 . Adjustment Procedures . 5-3 5.10 . Amplifier Zero Adjustments . 5-3 5-1 1 . Mid Band and Low Freq . Adjustments . 5-3 5.12 . High Frequency Adjustments . 5 4 5.13 . Servicing Informat

9、ion . 5-5 5.14 . Clean Handling Techniques . 5-5 5-1 5 . Reed Replacement . 5-5 5-1 8 . Thermocouple Replacement . 5-7 5.19 . AC Converter Assembly Exchange . 5-7 5.20 . Troubleshooting . 5-7 5.21 . Reed Relay Checks . 5-7 5.24 . Input Amp . Bias Adj . Range . 5-7 5.25 . Post Amp . Bias Adj . Range

10、. 5-7 5.26 . Thermocouple Protection Circuit . 5-8 5.27 . 1 /lo Scale Adjustment Range . 5-8 3.3 . AC or DC Coupled Measurement . 3-1 Section Page 34 . 3.7 . Response Time . 3-1 VI . REPLACEABLE PARTS . 6-1 6.1 . Introduction . 6-1 3-1 1 . Maximum Input Voltages . 3-1 3.10 . Measuring Speed . 3-1 Au

11、toranging Time . 3-1 3-1 2 . High Frequency Measurements . 3-1 6 4 . Ordering Information . 6-1 3.13 . AC Voltage Measurement Procedure . 3-2 6-6 . Non-Listed Parts . 6-1 Section Page Section Page IV . THEORY OF OPERATION . 4-1 VI1 . CIRCUIT DIAGRAMS . 7-1 4.1 . Introduction . 4-1 7.1 . Introduction

12、 . 7-1 4.2 . Attenuator Amplifier . 4-1 7.2 . Notes . 7-1 4.6 . Converter Thermocouple . 4-1 Appendices 4.8 . Thermocouple Protection . 4-1 A . CODE LIST OF MANUFACTURERS 4.9 . Output Attenuator and Filter . 4-1 B . SALES AND SERVICE OFFICES 4.5 . 4.7 . Post Amplifier . 4-1 Converter Amplifier . 4-1

13、 LIST OF TABLES Page Number Page Number 1.1 . Specifications . 1-1 5.3 . VAC Reed Relay Checks . 5-6 5-4 . Input Amp . Bias . 5-7 5 . 5 . Post Amp . Bias . 5-8 6.1 . Replaceable Parts . 6-2 5.1 . Required Test Equipment . 5-0 5.2 . AC Voltage Accuracy Checks . 5-2 LIST OF ILLUSTRATIONS Number Page N

14、umber Page 2.1 . AC Converter Installation . 2-1 2.2 . Function Switch Limit Stops . 2-2 4.1 . True RMS Converter Block Diagram . 4-0 5.1 . AC Voltage Accuracy Checks . 5-1 5.2 . Mid Band and Low Frequency Adjustments . 5 4 5.3 . 10 MHz, 1000 mV Adjustment . 5-5 5 4 . 1 MHz, 10 V Adjustment . 5-5 1

15、/lo Scale Coarse Adjustment . 5-8 5 . 5 . iii Table of Contents Model 11153A LIST OF ILLUSTRATIONS (Contd) Schematics and Diagrams Number Page Number 7-1. A7 Converter Assembly . . . . . . . . . . . . . . . , . . . 7-2 7-2. Attenuator Amplifier and Post Attenuator . . . . . . . 7-3 7-3. A7 Converter

16、 Assembly . . . . . . . . . . . . . . . 7 4 74. Post Amplifer and Converter Amplifier . . . 7-5. True RMS Converter Relay Connections . - iv 1 1 1 1 1 1 1 1 1 1 .I 1 1 Model 11153A Section I SECTION I GEN ERA1 INFORMATION 1-1. INTRODUCTION. 1-2. The Hewlett-Packard Model 11153A True RMS Converter is

17、 designed to be installed in the Model 3484A Multifunction Unit as an optional accessory, Option 043. The Model 3484A with the 11153A True RMS Converter installed allows the Model 3480A/B Digital Voltmeter to make true rms ac voltage measurements up to 1000 V. Five ranges of 100 mV, 1000 mV, 10 V, 1

18、00 V, and 1000 V are provided. Measurements up to 50% overrange are possible on all ranges except the 1OOOV range. Range may be 1-3. Two modes of ac voltage measurement are provided. The ac coupled mode, VAC(AC), makes ac measurements from 1OHz to lOMHz, while the dc coupled mode, VAC(DC), extends t

19、he range down to 1 Hz and makes true rms measurements of voltages containing both ac and dc. Mode of operation may be selected manually or remotely. 1-4. SPEC1 F lCATl0 NS. AC voltage measurement specifications for the 1 1 153A/3484A/3480A/B combination are given in Table selected manually, automati

20、cally or remotely. 1-1 Table 1-1. Specifications. Full Scale Voltage Ranges 50% Overrange capability on all ranges; maximum input 1500 V peak Range Selection Automatic Ranging Response AC Coupled - VAC(AC) Function DC Coupled - VAC(DC) Function (Selection of AC or DC coupling may be manual or remote

21、) Accuracy Conditions: 90 days, 25OC * 5OC Full-scale sinusoidal input voltage DC AC 100 mV, 1000 mV, 10 V, 100 V, 1000 V Manual, Automatic, or Remote Upranges at 140% of range Downranges at 10% of range Responds to true rms value of ac input signal (Internally ac coupled) Responds to true rrns valu

22、e of dc and ac input signal Reading = JDCI2 + (ACrms)2 With external 10 microfarad coupling capacitor, responds to ac component only, for measurement down to 1 Hz. k 1.0%, all ranges (plus temperature coefficient error deter- mined by Graph E when ambient temperature is between OC and 2OoC or 3OoC a

23、nd 5OoC) Graphs A, B, and C show accuracy specifications for full-scale sinusoidal input voltages. For inputs below full-scale, the full-scale accuracy specification must be modified by the multiplier indicated in Graph D to find the total error in percent of reading. In addition, at ambient tempera

24、tures between OC and 2OoC or 3OoC and 5OoC, the temperature coefficient error as determined by Graph E must be added. 1-1 Section I Table 1-1. Specifiitions. (Contd) Model 11153A 100 mV and lo00 mV Ranges Less than lo7 Volt-Hertz 10 V and 100 V Ranges Less than lo8 Volt-Hertz lo00 V Range Less than

25、lo8 Volt-Hertz Accuracy Multiplier (below fullscale) Temperature Coefficient .(OC to 50C) m.0 I.0 0 . 1 0 . 0 1 I m ms m IO FREQUENCY IN HERTZ ._ IIIu1-9-zQan Id IO. 1 0 IO FREQUENCY IN HERTZ 0.1 0 . 0 0 I 1 0 d lo lo. ,m,.-awoo FREQUENCY IN HERTZ so Do IS0 .I-= READINQ IN X OF FULL SCALE E 1.0 I- Y

26、 0 0 . 1 Y BP 8.: W P I 0.01 I W s W m o . w ( IIIIY-C300OS S0 100 REAMNQ M X OF FULL SCALE J 1 1 1 1 1 I 1 1 I 1 1 1-2 Model 11153A Section I Table 1-1. Specifications (Contd) Measuring Speed Reading Period Reading Rate (without range change) Internal Trigger Manual Trigger External Trigger Respons

27、e Time (without range change) From 10% of full-scale to full-scale, or from full-scale to 10% of full-scale. AC Coupled - VAC(AC) DC Coupled - VAC(DC) Autorange Time AC Coupled - VAC(AC) DC Coupled - VAC(DC) Input Characteristics Input Impedance Front Terminals Rear Terminals Crest Factor Maximum In

28、put Voltage AC Coupled - VAC(AC) DC Coupled - VAC(DC) Warm-up Time 950 microseconds Variable from 1 to 25 per second with front panel control Front panel pushbutton 0 to lo00 per second 1 second to within 5 counts of final reading 15 seconds to within 5 counts of final reading 1 second per range cha

29、nge 3 seconds per range change 150 nH - INPUT 200 nH 150 nH INPUT I - 150nH 7:l at full-scale, derated linearly from 35 Hz to 1.5:l at 5 Hz Crest factor is less above fullscale and greater below full-scale than specified at full-scale. The relationship is approxi- mately linear. 1500 V peak ac 10 Vd

30、c maximum, 100 mV range 100 Vdc maximum, all other ranges 1500 V maximum peak ac + dc 1000 V rms 1500 V maximum peak ac + dc 30 minutes to rated full-scale accuracy 1 -3 Model 11 153A Section I1 SECTION II I N STA LLATl 0 N 2-1. INTRODUCTION. ON THE SWITCHES OR PRINTED CIR- This section contains inf

31、ormation and instructions for PERFORMANCE OF THE INSTRU- CUlT BOARDS WILL DEGRADE THE MENT. BE CAREFUL NOTTO APPLY ANY PRESSURE TO REED RELAYS. installing the Model 11 153A True RMS Converter assembly within the Model 3484A Multifunction Unit. Also included are instructions for repackaging for shipm

32、ent. 2-2. INITIAL INSPECTION. This assembly was carefully inspected both mechanically and electrically before shipment. It should be examined for physical damage in transit. When installed in the Model 3484A, the electrical performance of the Model 11 153A should be tested, using the Performance Che

33、cks outlined in Paragraph 5-3. If there is damage or deficiency, see the warranty inside the front cover of this manual. b. With 3484A turned upside down, position ac con- verter assembly component side down over the hinges on the master board A3. See Figure 2-1. The converter input and output wires

34、 are on the hinge side of the assembly. c. Fasten the converter assembly to hinges, using 6-32 x 34 pan head screws with lockwasher, -hp- Part No. 2360-0113. 2-3. INSTALLATION. Use the following procedure to install the 11 153A True RMS Converter assembly in the 3484A Multifunction Unit. d. Connect

35、orange output wire to teflon connector in master board between left hinge and edge of board. See Figure 2-1. e. Connect red input wire to pin mounted in teflon a. Remove 3484A bottom guard cover. WEAR CLEAN RUBBER OR COTTON GLOVES WHEN WORKING WITHIN THE 3484A. DIRT OR FINGERPRINTS insulator near fr

36、ont edge of master board as indicated in Figure 2-1. This pin is connected through a red wire to terminal switch. f. Connect black ground wire to pin on master board next to ground lug. (Figure 2-1 .) g. Insert flex cable into connector 57 on master board. Figure 2-1. AC Converter Installation. 2- 1

37、 Section I1 h. 1. j- k. 1. Some 3484A units may be provided with two short spacers mounted in the master board at positions indicated byin Figure 2-1. If these spacers are present, remove nuts from the screws projecting up through the converter assembly shields. Rotate the assembly to the horizontal

38、 position and fasten in place by inserting the two screws into short spacers. Secure assembly to long spacers at edge of master board, using 6-32 x 318 pan head screws with lock- washer, -hp Part No. 2360-0117. Rotate FUNCTION switch counterclockwise to limit stop. If switch has two blank positions,

39、 omit Steps k through n and proceed to Step 0. If switch rotates only to VDC, proceed with Step k. Set FUNCTION switch to VDC and remove knob by loosening the two set screws. Remove 3484A top guard cover. Remove FUNCTION switch mounting nut and carefully slide the switch as far as possible toward re

40、ar of instrument. m. Rotate the counterclockwise limit stop two positions counterclockwise as indicated in Figure 2-2. Make certain that the clockwise limit stop is in the correct position. n. Replace switch carefully so that stops stay in posi- tion. Replace switch mounting nut. Replace top guard c

41、over. Proceed to Step p. FUNCTION swircn OUNTERCLOCKWISE Wllhoul Ohmi Wllhovl PIC CLOCKWISE STOP COUNTERCLOCKWISE I. .I o , . . POSIT ION STOP POSITION Figure 2-2. Function Switch Limit Stop. Model 11 153A 0. Set FUNCTION switch to VDC and remove knob by loosening the two set screws. p. Two FUNCTION

42、 switch knobs are provided with the Model 11153A. -hp- Part No. 5060-5952 should be used if the instrument does not have an ohms converter, and Part No. 5060-5954 if instrument does have ohms. Select and install correct knob, orienting so that VDC is opposite mark on front panel. Secure knob with tw

43、o set screws. q. Replace 3484A bottom guard cover. r. Check electrical performance of ac converter, using procedure outlined in Paragraph 5-3. 2-4. REPACKAGING FOR SHIPMENT. The following is a general guide for repackaging the 11153A converter assembly for shipment if it should become necessary to s

44、hip the converter assembly separate from the 3484A. NOTE If the assembly is to be shipped to Hewlett-Packard for repair or exchange, attach a tag to the assembly identifying the owner and indicating the repair to be accomplished or noting that the unit is being exchanged. a. If original container an

45、d packing material are avail- able, wrap the assembly carefully and make sure the container is well sealed with strong tape. b. If original container is not available, wrap assembly carefully in suitable packing material, bearing in mind that the reed relays in particular are easily broken. Place in a suitable container and seal well with strong tape. c. Mark shipping container “DELICA