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Keithley 2260B-250-13 Adjustment Manual - Programmable Power Supplies

Other manuals for 2260B-250-13: Quick Start Manual
Manual is about: 2260B series Multi-Range Programmable DC Power Supplies

Summary of 2260B-250-13

  • Page 1

    Verification and adjustment manual 077104802 / november 2016 *p077104802* 077104802 series 2260b multi-range programmable dc power supplies a greater measure of confidence www.Tek.Com/keithley.

  • Page 2: Programmable Power Supplies

    Programmable power supplies verification and adjustment manual © 2016, keithley instruments cleveland, ohio, u.S.A. All rights reserved. Any unauthorized reproduction, photocopy, or use of the information herein, in whole or in part, without the prior written approval of keithley instruments is stri...

  • Page 3: Safety Precautions

    Safety precautions the following safety precautions should be observed before using this product and any associated instrumentation. Although some instruments and accessories would normally be used with nonhazardous voltages, there are situations where hazardous conditions may be present. This produ...

  • Page 4

    For safety, instruments and accessories must be used in accordance with the operating instructions. If the instruments or accessories are used in a manner not specified in the operating instructions, the protection provided by the equipment may be impaired. Do not exceed the maximum signal levels of...

  • Page 5: Table Of Contents

    Introduction ............................................................................................................... 1-1 welcome .............................................................................................................................. 1-1 extended warranty .................

  • Page 6

    Table of contents series 2260b programmable power supplies verification and adjustment manual constant voltage adjustment ................................................................................... 8-1 connect device equipment ....................................................................

  • Page 7: Welcome

    In this section: welcome .................................................................................. 1-1 extended warranty ................................................................... 1-1 contact information .................................................................. 1-1 series ...

  • Page 8

    Section 1: introduction series 2260b programmable power supplies verification and adjustment manual 1-2 077104802 / november 2016 series 2260b available models the 2260b series consists of 12 models, divided into three different model types covering four power capacities: 360 watt models, 720 watt m...

  • Page 9: Verification Information

    In this section: verification information ............................................................. 2-1 verification equipment .............................................................. 2-1 verification information in order to ensure that the power supply is working properly and performance ...

  • Page 10: Verification Equipment

    Section 2: verification preparation series 2260b programmable power supplies verification and adjustment manual 2-2 077104802 / november 2016 verification equipment here is a list of the recommended equipment used for verifying the specifications of the programmable dc power supplies: type specifica...

  • Page 11

    In this section: constant voltage (cv) verification tests ................................... 3-1 constant voltage (cv) verification tests there are four verification tests in this series. These tests verify display panel accuracy, verify programmed voltage, measure output voltage changes based on l...

  • Page 12

    Section 3: constant voltage verification series 2260b programmable power supplies verification and adjustment manual 3-2 077104802 / november 2016 before proceeding, make sure that the 2260b instrument is off. To perform voltage programming and measurement accuracy: 1. Connect the ac power supply to...

  • Page 13

    Series 2260b programmable power supplies verification and adjustment manual section 3: constant voltage verification 077104802 / november 2016 3-3 before proceeding, make sure that the 2260b instrument is off. To perform cv load regulation verification: 1. Connect the ac power supply to the 2260b. 2...

  • Page 14

    Section 3: constant voltage verification series 2260b programmable power supplies verification and adjustment manual 3-4 077104802 / november 2016 before proceeding, make sure that the 2260b instrument is off. To perform cv line regulation verification: 1. Connect the ac power supply to the 2260b. 2...

  • Page 15

    Series 2260b programmable power supplies verification and adjustment manual section 3: constant voltage verification 077104802 / november 2016 3-5 constant voltage ripple and noise verification this test measures the dc output voltage with the (10:1) 50 Ω probe. Hazardous voltages may be present on ...

  • Page 16

    Section 3: constant voltage verification series 2260b programmable power supplies verification and adjustment manual 3-6 077104802 / november 2016 before proceeding, make sure that the 2260b instrument is off. To perform cv ripple and noise verification: 1. Connect the ac power supply to the 2260b. ...

  • Page 17

    In this section: constant current verification tests ............................................ 4-1 constant current (cc) verification tests there are four verification tests in this series. These tests verify display panel accuracy, verify programmed voltage, measure output voltage changes based ...

  • Page 18

    Section 4: constant current verification series 2260b programmable power supplies verification and adjustment manual 4-2 077104802 / november 2016 before proceeding, make sure that the 2260b instrument is off. To perform current programming and measurement accuracy: 1. Connect the ac power supply. 2...

  • Page 19

    Series 2260b programmable power supplies verification and adjustment manual section 4: constant current verification 077104802 / november 2016 4-3 constant current load regulation verification this test measures the change in output current resulting from a change from full scale to short circuit. H...

  • Page 20

    Section 4: constant current verification series 2260b programmable power supplies verification and adjustment manual 4-4 077104802 / november 2016 constant current line regulation verification this test measures the change in output current that results from a change in ac line voltage from the mini...

  • Page 21

    Series 2260b programmable power supplies verification and adjustment manual section 4: constant current verification 077104802 / november 2016 4-5 before proceeding, make sure that the 2260b instrument is off. To perform cc line regulation verification: 1. Connect the ac power supply. 2. Connect the...

  • Page 22

    Section 4: constant current verification series 2260b programmable power supplies verification and adjustment manual 4-6 077104802 / november 2016 constant current noise verification this test measures the ac output voltage with the pcs-1000 and dmm. Hazardous voltages may be present on all output a...

  • Page 23

    In this section: 30 volt verification test record .................................................. 5-1 80 volt verification test record .................................................. 5-4 250 volt verification record ....................................................... 5-6 800 volt verificat...

  • Page 24

    Section 5: verification test record forms series 2260b programmable power supplies verification and adjustment manual 5-2 077104802 / november 2016 30 volt verification test record print this page and record your verification results that can be used for reference in the future. Make sure to keep th...

  • Page 25

    Series 2260b programmable power supplies verification and adjustment manual section 5: verification test record forms 077104802 / november 2016 5-3 constant current tests: current programming and measurement model minimum specifications results maximum specifications minimum current out 30-36 -30 ma...

  • Page 26

    Section 5: verification test record forms series 2260b programmable power supplies verification and adjustment manual 5-4 077104802 / november 2016 80 volt verification test record print this page and record your verification results that can be used for reference in the future. Make sure to keep th...

  • Page 27

    Series 2260b programmable power supplies verification and adjustment manual section 5: verification test record forms 077104802 / november 2016 5-5 constant current tests: current programming and measurement model minimum specifications results maximum specifications minimum current out 80-13 -10 ma...

  • Page 28

    Section 5: verification test record forms series 2260b programmable power supplies verification and adjustment manual 5-6 077104802 / november 2016 250 volt verification record print this page and record your verification results that can be used for reference in the future. Make sure to keep this r...

  • Page 29

    Series 2260b programmable power supplies verification and adjustment manual section 5: verification test record forms 077104802 / november 2016 5-7 constant current tests: current programming and measurement model minimum specifications results maximum specifications minimum current out 250-4 -5 ma ...

  • Page 30

    Section 5: verification test record forms series 2260b programmable power supplies verification and adjustment manual 5-8 077104802 / november 2016 800 volt verification record print this page and record your verification results that can be used for reference in the future. Make sure to keep this r...

  • Page 31

    Series 2260b programmable power supplies verification and adjustment manual section 5: verification test record forms 077104802 / november 2016 5-9 constant current tests: current programming and measurement model minimum specifications results maximum specifications minimum current out 800-1 -2 ma ...

  • Page 32: Adjustment Equipment

    In this section: adjustment equipment ............................................................. 6-1 adjustment equipment here is a list of the recommended equipment used for calibrating the programmable dc power supplies: type specifications recommended instrument precision current shunt 3 a (0....

  • Page 33: Remove Top Cover

    In this section: remove top cover .................................................................... 7-1 confirm location of adjustment points ...................................... 7-2 analog interface adjustment procedure .................................... 7-3 remove top cover hazardous voltag...

  • Page 34

    Section 7: analog interface adjustment series 2260b programmable power supplies verification and adjustment manual 7-2 077104802 / november 2016 before you can make adjustments on the instrument, you will need to remove the 2260b top cover. On the 360 watt models (2260b-30-36, 2260b-80-13, 2260b-250...

  • Page 35

    Series 2260b programmable power supplies verification and adjustment manual section 7: analog interface adjustment 077104802 / november 2016 7-3 make sure that you connect the following devices as indicated in the next figure. Also, make sure that you set the model 2220-30-1 dc power supply, channel...

  • Page 36

    Section 7: analog interface adjustment series 2260b programmable power supplies verification and adjustment manual 7-4 077104802 / november 2016 4. Use the current knob to select the appropriate password for the model that you are calibrating. Here's the list of models and passwords: model number pa...

  • Page 37

    Series 2260b programmable power supplies verification and adjustment manual section 7: analog interface adjustment 077104802 / november 2016 7-5 make sure that the reading on the dmm is within the specified voltage range. If not, adjust the voltage resistor (vr401) on the 2260b instrument (see confi...

  • Page 38

    Section 7: analog interface adjustment series 2260b programmable power supplies verification and adjustment manual 7-6 077104802 / november 2016 make sure that the reading on the pcs-1000 current meter is within the specified current range. If not, adjust the current resistor (vr400) on the 2260b in...

  • Page 39

    Series 2260b programmable power supplies verification and adjustment manual section 7: analog interface adjustment 077104802 / november 2016 7-7 18. Press the voltage knob to exit adjustment mode. The "x" in the diagram above indicates that the value is not fixed. 19. Turn off the 2600b instrument a...

  • Page 40: Connect Device Equipment

    In this section: connect device equipment ....................................................... 8-1 constant voltage adjustment procedure ................................... 8-2 connect device equipment hazardous voltages may be present on all output and guard terminals. To prevent electrical shoc...

  • Page 41

    Section 8: constant voltage adjustment series 2260b programmable power supplies verification and adjustment manual 8-2 077104802 / november 2016 constant voltage (cv) adjustment procedure to start the adjustment procedure: 1. Turn on the programmable dc power supply (series 2260b) by pressing the fu...

  • Page 42

    Series 2260b programmable power supplies verification and adjustment manual section 8: constant voltage adjustment 077104802 / november 2016 8-3 5. Use the current knob to enter "constant voltage" adjustment mode. To enter adjustment mode, rotate the current knob until "1" is displayed on the bottom...

  • Page 43

    Section 8: constant voltage adjustment series 2260b programmable power supplies verification and adjustment manual 8-4 077104802 / november 2016 the "x" in the diagram above indicates that the value is not fixed. 12. Rotate the current knob to set the middle voltage value on the 2260b display so tha...

  • Page 44

    Series 2260b programmable power supplies verification and adjustment manual section 8: constant voltage adjustment 077104802 / november 2016 8-5 the display will indicate "ok" when the adjustment is complete for approximately five seconds. Additionally, the output turns on and the cv indicator is li...

  • Page 45

    Section 8: constant voltage adjustment series 2260b programmable power supplies verification and adjustment manual 8-6 077104802 / november 2016 22. Press the voltage knob to exit adjustment mode. The "x" in the diagram above indicates that the value is not fixed. Constant voltage adjustment is comp...

  • Page 46: Connect Device Equipment

    In this section: connect device equipment ....................................................... 9-1 constant current adjustment procedure ................................... 9-2 connect device equipment hazardous voltages may be present on all output and guard terminals. To prevent electrical shoc...

  • Page 47

    Section 9: constant current adjustment series 2260b programmable power supplies verification and adjustment manual 9-2 077104802 / november 2016 constant current (cc) adjustment procedure to start the adjustment procedure: 1. Turn on the programmable dc power supply (series 2260b) by pressing the fu...

  • Page 48

    Series 2260b programmable power supplies verification and adjustment manual section 9: constant current adjustment 077104802 / november 2016 9-3 5. Use the current knob to enter "constant voltage" adjustment mode. To enter the adjustment mode, rotate the current knob until "1" is displayed on the bo...

  • Page 49

    Section 9: constant current adjustment series 2260b programmable power supplies verification and adjustment manual 9-4 077104802 / november 2016 12. Press the voltage knob to set the half-scale current value (c124). The "x" in the diagram above indicates that the value is not fixed. 13. Rotate the c...

  • Page 50

    Series 2260b programmable power supplies verification and adjustment manual section 9: constant current adjustment 077104802 / november 2016 9-5 the display will indicate "ok" when the adjustment is complete. Additionally, the output turns on and the cc indicator is lit. Also, the instrument automat...

  • Page 51

    Section 9: constant current adjustment series 2260b programmable power supplies verification and adjustment manual 9-6 077104802 / november 2016 the "x" in the diagram above indicates that the value is not fixed. Constant current adjustment is complete..

  • Page 52: Adjustment Code Glossary

    In this section: adjustment codes ................................................................... 10-2 section 10 adjustment code glossary.

  • Page 53: Adjustment Codes

    Section 10: adjustment code glossary series 2260b programmable power supplies verification and adjustment manual 10-2 077104802 / november 2016 adjustment codes voltage display current display description f-01 x power applied; function key lights up f-00 0000 enter adjustment mode c000 0 password en...

  • Page 54: Index

    2 2260b adjustment equipment • 6-1 250 volt verification record • 5-6 3 30 volt verification test record • 5-2 8 80 volt verification test record • 5-4 800 volt verification record • 5-8 a adjustment code glossary • 10-1 adjustment codes • 10-2 adjustment equipment • 6-1 analog interface adjustment ...

  • Page 55

    Specifications are subject to change without notice. All keithley trademarks and trade names are the property of keithley instruments. All other trademarks and trade names are the property of their respective companies. Keithley instruments corporate headquarters • 28775 aurora road • cleveland, ohi...