Table of Contents
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Table of Contents
Related Manuals for Keysight EL30000 Series
Summary of Contents for Keysight EL30000 Series
- Page 1 Service Guide EL30000 Series DC Electronic Loads...
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Page 2: Table Of Contents
Constant Voltage (CV) verification Constant Current (CC) verification Constant Resistance (CR) verification Constant Power (CP) verification Test Record Forms Test record form - Keysight EL33133A Test record form - Keysight EL34143A Test record form - Keysight EL34243A Calibration Adjustment Procedures Closed–case electronic calibration... - Page 3 Saving calibration data Calibration auto save Calibration Test Setup Calibration procedure Save the calibration data Keysight EL30000 Series Service Guide...
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Page 4: Notices
No part of this manual may be reproduced in any form or by any means (including electronic storage and retrieval or translation into a foreign language) without prior agreement and written consent from Keysight Technologies as governed by United States and international copyright laws. -
Page 5: U.s. Government Rights
FAR and the DFARS and are set forth specifically in writing elsewhere in the EULA. Keysight shall be under no obligation to update, revise or otherwise modify the Software. With respect to any technical data as defined by FAR 2.101, pursuant to FAR 12.211 and 27.404.2 and DFARS 227.7102, the U.S. -
Page 6: Safety Information
A WARNING notice denotes a hazard. It calls attention to an operating procedure, practice, or the like that, if not correctly per- formed or adhered to, could result in personal injury or death. Do not proceed beyond a WARNING notice until the indicated con- ditions are fully understood and met. Keysight EL30000 Series Service Guide... -
Page 7: Service And Maintenance
User Replaceable Parts Battery Replacement Disassembly This chapter provides the specifications and service information on cleaning, troubleshooting, repair, and replaceable parts of the EL30000 Series. This chapter also explains how to assemble and disassemble the EL30000 Series. Keysight EL30000 Series Service Guide... -
Page 8: Specifications And Characteristics
Types of service available If your instrument fails during the warranty period, Keysight Technologies will repair or replace it under the terms of your warranty. After your warranty expires, Keysight offers repair services at competitive prices. You also have the option to purchase a service contract that extends the coverage after the standard warranty expires. -
Page 9: Troubleshooting
– Verify the power-line voltage setting. Self-Test Procedures Refer to EL30000 Series User's Guide for details. User Replaceable Parts You can find the instrument support part list at Keysight's Test & Measurement Parts Catalog http://www.keysight.com/find/parts. Keysight EL30000 Series Service Guide... -
Page 10: Battery Replacement
(see red arrow below). The top of the small spring clips should be visible after the battery is seated (see red circle below). 5. Replace the top cover when finished. 6. Reset the date and time. Properly dispose of the old battery in accordance with local laws and regulations. Keysight EL30000 Series Service Guide... -
Page 11: Disassembly
Remove the side trims from the front panel. Remove four Pozi screws from the front panel using a Pozi M4 bit. Pull out the front panel To install back the front panel, perform the above steps in reverse order. Keysight EL30000 Series Service Guide... -
Page 12: Removing/Installing The Knob
Cover both side with the plastic cap. Secure both side of the strap handle with 2 (M5*10) screws. Removing/Installing the GPIB module (EL34143A and EL34243A only) Refer to the EL30000 Series User's Guide for details. Keysight EL30000 Series Service Guide... -
Page 13: Verification And Adjustments
Test Record Forms Calibration Adjustment Procedures This chapter contains the performance verification procedures which verify that the EL30000 Series is operating within its published specifications. This chapter also provides information on adjustments performed after a performance verification fails. Keysight EL30000 Series Service Guide... -
Page 14: Performance Verification
Guildline 9230A-100 Power Supplies 150 V, 60 A, 350 W minimum Keysight N7977A (160 V, 12.5 A) and Keysight N7971A (20 V, 100 A) Test considerations – Ensure that the calibration ambient temperature is stable at 23 °C ± 5 °C. -
Page 15: Measurement Techniques
Connect all leads to the input terminals as shown in the following figure. The following figures show the verification test set-ups. Connect all leads to the input terminal as shown below. CC Verification Test Setup CV Verification Test Setup CR and CP Verification Test Setup Keysight EL30000 Series Service Guide... -
Page 16: Constant Voltage (Cv) Verification
12. Record the voltage reading from the DMM and the voltage measured over the interface. The readings should be within the limits specified in the test record form for the appropriate model under “Voltage Programming & Readback - Low range, Maximum voltage”. Keysight EL30000 Series Service Guide... -
Page 17: Constant Current (Cc) Verification
(Iin). Also record the current reading measured over the interface. The readings should be within the limits specified in the test record form for the appropriate model under “Current Programming & Readback, Medium range, Maximum current”. Keysight EL30000 Series Service Guide... - Page 18 (Iin). Also record the current reading measured over the interface. The readings should be within the limits specified in the test record form for the appropriate model under “Current Programming & Readback, Low range, Maximum current”. Keysight EL30000 Series Service Guide...
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Page 19: Constant Resistance (Cr) Verification
11. Program the load settings as described in the test record form for “Resistance Programming - High range, Minimum resistance”. Turn on the power supply and program it to the power supply settings described in the test record form. 12. Turn the load input on. The load status should be “CR”. Keysight EL30000 Series Service Guide... - Page 20 26. Calculate the resistance value as follows: R = Vin/Iin. Vin is the voltage measured by the second DMM. Convert the input resistance (R) to Siemens by inverting the value: S = 1/R. The value in Siemens should not exceed value listed in the test record under “Resistance Programming - Low range, Minimum resistance”. Keysight EL30000 Series Service Guide...
- Page 21 29. Calculate the resistance value as follows: R = Vin/Iin. Vin is the voltage measured by the second DMM. Convert the input resistance (R) to Siemens by inverting the value: S = 1/R. The value in Siemens should not exceed value listed in the test record under “Resistance Programming - Low range, Maximum resistance”. Keysight EL30000 Series Service Guide...
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Page 22: Constant Power (Cp) Verification
Maximum power”. Program the power supply to the power supply settings described in the test record form. 14. Divide the voltage drop (DMM reading) across the current shunt by the shunt resistance to convert to amps and record this value (Iin). Also record the current measured over the interface. Keysight EL30000 Series Service Guide... - Page 23 21. Calculate the power as follows: P = Iin x Vin. Vin is the voltage measured by the second DMM. The readings should be within the limits specified in the test record form for the appropriate model under “Power Programming & Readback - Low range, Maximum power”. Keysight EL30000 Series Service Guide...
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Page 24: Test Record Forms
Test Record Forms Test record form - Keysight EL33133A Test record form - Keysight EL34143A Test record form - Keysight EL34243A Test record form - Keysight EL33133A Keysight EL33133A Record Number: ______ Date: ______ Description Lower Limits Results Upper Limits Constant Voltage (CV) Tests Voltage Programming &... - Page 25 Power Programming & Readback - Low Range, Minimum power CP mode; 0.02 W; 4W sense 1.25 V; 0.5 A Power Programming & Readback - Low Range, Maximum power CP mode; 5 W; 4W sense 5 V; 1 A Keysight EL30000 Series Service Guide...
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Page 26: Test Record Form - Keysight El34143A
Test record form - Keysight EL34143A Keysight EL34143A Record Number: ______ Date: ______ Description Lower Limits Results Upper Limits Constant Voltage (CV) Tests Voltage Programming & Readback - High range Minimum voltage: 1.4847 V ________ 1.5153 V Voltage measured over interface: - 15.3 mV... - Page 27 Power Programming & Readback - Low Range, Minimum power CP mode; 0.02 W; 4W sense 1.5 V; 0.1 A Power Programming & Readback - Low Range, Maximum power CP mode; 8 W; 4W sense 15 V; 1 A Keysight EL30000 Series Service Guide...
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Page 28: Test Record Form - Keysight El34243A
Test record form - Keysight EL34243A Keysight EL34243A Record Number: ______ Date: ______ Description Lower Limits Results Upper Limits Constant Voltage (CV) Tests Voltage Programming & Readback - High range Minimum voltage: 1.4847 V ________ 1.5153 V Voltage measured over interface: - 15.3 mV... - Page 29 Power Programming & Readback - Low Range, Minimum power CP mode; 0.02 W; 4W sense 0.25 V; 0.5 A Power Programming & Readback - Low Range, Maximum power CP mode; 7 W; 4W sense 12 V; 1 A Keysight EL30000 Series Service Guide...
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Page 30: Calibration Adjustment Procedures
Calibration Adjustment Procedures This chapter includes calibration adjustment procedures for Keysight EL30000 Series Electronic Load. Instructions are applicable for performing the procedures from either the front panel or a controller over the LAN, USB, or GPIB. Perform the verification tests before calibrating your instrument. If the instrument passes the verification tests, the unit is operating within its calibration limits and does not need to be re-calibrated. -
Page 31: Calibration Count
You can only store the calibration message when the instrument is unsecured, but you can execute the CALibration:STRing? query regardless of whether the instrument is secured. A new calibration message overwrites the previous message, and messages over 40 characters are truncated. Keysight EL30000 Series Service Guide... - Page 32 Connect all leads to the output terminals as shown in the following figure. The following figures show the calibration test set-ups. Connect all leads to the input terminal as shown below. CC Calibration Setup CV Calibration Setup Keysight EL30000 Series Service Guide...
- Page 33 Note: Wait 3 minutes for the voltage to stabilize before measuring the voltage with DMM. Enter the measured value, and press Next. CAL:VOLT <reading>, (@<channel>) Read DONE or FAIL on the display. (wait 30 seconds) SYST:ERR? Press Cal Save. CAL:SAVE Keysight EL30000 Series Service Guide...
- Page 34 Note: Wait 3 minutes for the voltage to stabilize before measuring the voltage with DMM. Enter the measured value, and press Next. CAL:VOLT:LOW <reading>, (@<channel>) Read DONE or FAIL on the display. (wait 30 seconds) SYST:ERR? Press Cal Save. CAL:SAVE Keysight EL30000 Series Service Guide...
- Page 35 (I=V/R). Enter the calculated data, and press Next. CAL:CURR <reading>, (@<channel>) Read DONE or FAIL on the display. (wait 30 seconds) SYST:ERR? Press Cal Save. CAL:SAVE Keysight EL30000 Series Service Guide...
- Page 36 (I=V/R) Enter the calculated data, and press Next. CAL:CURR:LOW <reading>, (@<channel>) Read DONE or FAIL on the display. (wait 30 seconds) SYST:ERR? Press Cal Save. CAL:SAVE Keysight EL30000 Series Service Guide...
- Page 37 After completing the voltage, current and current limit calibrations, save the calibration data before exiting the calibration state, or simply exit the calibration state if Auto Save is on. To save the CAL data: CAL:SAVE To enable the CAL Auto Save: CAL:ASAVE ON To exit CAL State: CAL:SEC:STAT 1 <code> Keysight EL30000 Series Service Guide...
- Page 38 This information is subject to change without notice. © Keysight Technologies 2020, 2021 Edition 1, February 4, 2021 Printed in Malaysia EL34243-90008 www.keysight.com...
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