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Keithley 2260B-30-36 Adjustment Manual Download 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 Function key. 

The function key lights up, the display indicates "F - 01." Additionally, note that the "x" in the diagram 
below indicates that the value is not fixed. 

 

 

2.  Rotate the voltage knob until it indicates "F - 00". 

 

 

3.  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 

Password 

 

2260B-30-36 

3036 

 

2260B-30-72 

3072 

 

2260B-30-108 

3010 

 

2260B-80-13 

8013 

 

2260B-80-27 

8027 

 

2260B-80-40 

8040 

 

2260B-250-4 

2545 

 

2260B-250-9 

2509 

 

2260B-250-13 

2515 

 

2260B-800-1 

8014 

 

2260B-800-2 

8028 

 

2260B-800-4 

8043 

4.  Press the voltage knob to enter analog interface adjustment. 

The display will indicate "C000" when completed. 

 

Summary of Contents for 2260B-30-36

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: ...pproval of Keithley Instruments is strictly prohibited All Keithley Instruments product names are trademarks or registered trademarks of Keithley Instruments Other brand names are trademarks or regist...

Page 3: ...s may be connected to mains These instruments will be marked as category II or higher Unless explicitly allowed in the specifications operating manual and instrument labels do not connect any instrume...

Page 4: ...ead the associated information very carefully before performing the indicated procedure The CAUTION heading in the user documentation explains hazards that could damage the instrument Such damage may...

Page 5: ...ation 3 5 Constant current verification 4 1 Constant current CC verification tests 4 1 Current programming and measurement accuracy verification 4 1 Constant current load regulation verification 4 3 C...

Page 6: ...stment Manual Constant voltage adjustment 8 1 Connect device equipment 8 1 Constant voltage adjustment procedure 8 2 Constant current adjustment 9 1 Connect device equipment 9 1 Constant current adjus...

Page 7: ...puts are also available for remote monitoring and analog control Extended warranty Additional years of warranty coverage are available on many products These valuable contracts protect you from unbudg...

Page 8: ...Output current Power 2260B 30 36 0 V to 30 V 0 A to 36 A 360 W 2260B 30 72 0 V to 30 V 0 A to 72 A 720 W 2260B 30 108 0 V to 30 V 0 A to 108 A 1080 W 2260B 80 13 0 V to 80 V 0 A to 13 5 A 360 W 2260B...

Page 9: ...ng the power supply in a new environment Removing the cover for any reason The following are the environmental conditions that are required when performing verification and adjustment Indoor location...

Page 10: ...a slew rate of 1 A s or better Various manufacturers of programmable DC power supply for electronic loads 500 V 60 A minimum with transient capability and a slew rate of 0 4 A s or better 1000 V 12 A...

Page 11: ...d terminals To prevent electrical shock that could cause injury or death never make or break connections to any of the instruments used for this verification test while instruments are powered on Turn...

Page 12: ...to its maximum rated value see Series 2260B available models on page 1 1 8 Record the DMM output voltage reading and the voltage indicated on the 2260B The readings should be within the limits specif...

Page 13: ...ngs in steps 7 and 8 is the load effect which should not exceed the value listed in the test record form see Verification test record forms on page 5 1 for the appropriate model under CV load regulati...

Page 14: ...0B available models on page 1 1 6 On the 2260B press the Output button 7 On the electronic DC load instrument set the electronic output load to 1 A Note that CV is displayed on the 2260B front panel I...

Page 15: ...e instruments used for this verification test while instruments are powered on Turn off the 2260B instrument from the front panel or disconnect the main power cord from the rear of the instrument befo...

Page 16: ...0 mV Sampling mode to average and the measurement to peak to peak 5 Press the Set button on your 2260B and program the power supply to output current to its maximum value and the output voltage to its...

Page 17: ...als To prevent electrical shock that could cause injury or death never make or break connections to any of the instruments used for this verification test while instruments are powered on Turn off the...

Page 18: ...Note that CC is displayed on the 2260B front panel 6 Record the precision current shunt PCS 1000 input current readings and the current indicated on the 2260B The readings should be within the limits...

Page 19: ...that you have Category I Figure 6 2260B Constant current load regulation Before proceeding make sure that the 2260B instrument is off To perform CC load regulation verification 1 Connect the AC power...

Page 20: ...ry or death never make or break connections to any of the instruments used for this verification test while instruments are powered on Turn off the 2260B instrument from the front panel or disconnect...

Page 21: ...utput button on your 2260B 7 With the electronic load in CR mode short the load and program the 2260B output voltage to 15 volts Note that CC is displayed on the 2260B front panel If CC is not display...

Page 22: ...the test device and any unprotected leads wiring with double insulation for up to 800 volts depending on the power supply that you have Category I Figure 8 2260B Constant current noise verification B...

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 verification record 5 8 Section 5 Verification test record forms...

Page 24: ...Constant voltage tests Voltage programming and measurement Model Minimum specifications Results Maximum specifications Minimum voltage out All 10 1 mV 10 1 mV Measurement accuracy All 20 1 mV 20 1 mV...

Page 25: ...mA Measurement accuracy 30 36 40 mA 40 mA 30 72 70 mA 70 mA 30 108 100 mA 100 mA Rated current out 30 36 35 934 A 36 066 A 30 72 71 898 A 72 102 A 30 108 107 862 A 108 138 A Measurement accuracy 30 36...

Page 26: ...ty Constant voltage tests Voltage programming and measurement Model Minimum specifications Results Maximum specifications Minimum voltage out All 10 1 mV 10 1 mV Measurement accuracy All 20 1 mV 20 1...

Page 27: ...mA 40 mA Measurement accuracy 80 13 20 mA 20 mA 80 27 40 mA 40 mA 80 40 50 mA 50 mA Rated current out 80 13 12 87 A 13 13 A 80 27 26 943 A 27 057 A 80 40 39 92 A 40 080 A Measurement accuracy 80 13 1...

Page 28: ...stant voltage tests Voltage programming and measurement Model Minimum specifications Results Maximum specifications Minimum voltage out All 200 mV 200 mV Measurement accuracy All 200 mV 200 mV Rated v...

Page 29: ...ement accuracy 250 4 5 mA 5 mA 250 9 10 mA 10 mA 250 13 20 mA 20 mA Rated current out 250 4 3 991 A 4 001 A 250 9 8 9810 A 9 0190 A 250 13 12 972 A 13 028 A Measurement accuracy 250 4 3 991 mA 4 001 m...

Page 30: ...onstant voltage tests Voltage programming and measurement Model Minimum specifications Results Maximum specifications Minimum voltage out All 400 mV 400 mV Measurement accuracy All 400 mV 400 mV Rated...

Page 31: ...Measurement accuracy 800 1 2 mA 2 mA 800 2 4 mA 4 mA 800 4 6 mA 6 mA Rated current out 800 1 0 997 A 1 003 A 800 2 1 994 A 2 006 A 800 4 3 936 A 4 064 A Measurement accuracy 800 1 0 997 A 1 003 A 800...

Page 32: ...A minimum with transient capability and a slew rate of 2 8 A s or better Various manufacturers of programmable DC electronic loads 500 V 40 A minimum with transient capability and a slew rate of 0 4...

Page 33: ...nstruments are powered on Turn off all of the instruments from the front panel or disconnect the main power cord from the rear of the instrument before handling cables Putting the equipment into an ou...

Page 34: ...l need to remove in order to remove the top cover see next figure The next figure only shows seven screws On the 720 watt models 2260B 30 72 2260B 80 27 2260B 250 9 2260B 800 2 there are ten screws th...

Page 35: ...hannel one and channel two to 10 00 V Figure 11 Analog adjustment devices Analog interface adjustment procedure To start the adjustment procedure 1 Turn on the programmable DC power supply Series 2260...

Page 36: ...2260B 800 4 8043 5 Press the Current knob to enter the password note that the highlighted numeral is the one that you are changing 6 Once the number needed is highlighted press the Current knob to mo...

Page 37: ...72 29 994 30 006 2260B 30 108 29 994 30 006 2260B 80 13 79 984 80 016 2260B 80 27 79 984 80 016 2260B 80 40 79 984 80 016 2260B 250 4 249 950 250 050 2260B 250 9 249 950 250 050 2260B 250 13 249 950...

Page 38: ...rent maximum current 2260B 30 36 35 9928 36 0072 2260B 30 72 71 9856 72 0144 2260B 30 108 107 9784 108 0216 2260B 80 13 13 4973 13 5027 2260B 80 27 26 9946 27 0054 2260B 80 40 40 4919 40 5081 2260B 25...

Page 39: ...ion 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 i...

Page 40: ...r disconnect the main power cord from the rear of the instrument before handling cables Putting the equipment into an output off state does not guarantee that the outputs are powered off if a hardware...

Page 41: ...that the x in the diagram below indicates that the value is not fixed 2 Rotate the voltage knob until it indicates F 00 3 Use the Current knob to select the appropriate password for the model that yo...

Page 42: ...ltage knob to enter voltage adjustment C110 7 Press the voltage knob two times to enter the voltage offset adjustment C111 8 Press the voltage knob to set the offset voltage value C112 The x in the di...

Page 43: ...PCS 1000 voltmeter 13 Press the voltage knob to enter the output voltage full scale adjustment C115 14 Press the voltage knob to set the full scale voltage value C116 The x in the diagram above indic...

Page 44: ...e CV indicator is lit Also the instrument automatically returns to C110 after the automatic OVP adjustment ends 18 Rotate the voltage knob to go to save mode C130 19 Rotate the current knob until 1 is...

Page 45: ...0B 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 n...

Page 46: ...l or disconnect the main power cord from the rear of the instrument before handling cables Putting the equipment into an output off state does not guarantee that the outputs are powered off if a hardw...

Page 47: ...x in the diagram below indicates that the value is not fixed 2 Rotate the voltage knob until it indicates F 00 3 Use the Current knob to select the appropriate password for the model that you are cali...

Page 48: ...he voltage knob to enter voltage adjustment C110 7 Rotate the voltage knob to go to current adjustment C120 8 Press the voltage knob to enter the output current offset adjustment C121 9 Press the volt...

Page 49: ...that it is the same as the reading on the PCS 1000 current meter 14 Press the voltage knob to enter the output current full scale adjustment C125 15 Press the voltage knob to set the full scale value...

Page 50: ...ent automatically returns to C120 after the automatic OCP adjustment ends 4 Rotate the voltage knob to go to save mode C130 5 Rotate the current knob until 1 is shown on the bottom display C130 1 6 Pr...

Page 51: ...ent 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...

Page 52: ...In this section Adjustment codes 10 2 Section 10 Adjustment code glossary...

Page 53: ...voltage adjustment mode C111 Standby adjustment offset voltage value C112 X Adjustment offset voltage value C113 Standby adjustment half scale voltage value C114 X Adjustment full scale voltage value...

Page 54: ...onstant current verification 4 1 Constant current verification tests 4 1 Constant voltage CV verification tests 3 1 Constant voltage adjustment 8 1 Constant voltage adjustment procedure 8 2 Constant v...

Page 55: ...operty of Keithley Instruments All other trademarks and trade names are the property of their respective companies Keithley Instruments Corporate Headquarters 28775 Aurora Road Cleveland Ohio 44139 44...

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