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Table of Contents
Related Manuals for Keysight Technologies U8480 Series
Summary of Contents for Keysight Technologies U8480 Series
- Page 1 Keysight U8480 Series USB Thermocouple Power Sensor Service Guide...
- Page 2 DOCUMENT IS PROVIDED “AS IS,” software,” as defined by Federal AND IS SUBJECT TO BEING Acquisition Regulation (“FAR”) 2.101. © Keysight Technologies 2013 - 2020 CHANGED, WITHOUT NOTICE, IN Pursuant to FAR 12.212 and 27.405-3 No part of this manual may be FUTURE EDITIONS.
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Page 3: Safety And Regulatory Symbols
Forty years is the expected useful life Cet appareil ISM est conforme a la of the product. norme NMB-001 du Canada. ISM GRP.1 Class A indicates that this is an Industrial Scientific and Medical Group 1 Class A product. Keysight U8480 Series Service Guide... -
Page 4: General Safety Information
Repair or service that is not covered in this manual should only be performed CAUTION by qualified personnel. Keysight U8480 Series Service Guide... -
Page 5: Environmental Conditions
Operating up to 4.6 km (15000 ft) Storage condition Environmental cond ition Requirement Temperature –40 °C to 71 °C (non-operating) Humidity –40 °C to 71 °C (non-operating) Altitude Non-operating up to 4.6 km (15000 ft) Keysight U8480 Series Service Guide... -
Page 6: Regulatory Information
Regulatory information The U8480 Series USB thermocouple power sensor complies with the following EMC requirements: – IEC 61326-1/EN 61326-1 – Canada: ICES/NMB-001 – Australia/New Zealand: AS/NZS CISPR11 Keysight U8480 Series Service Guide... -
Page 7: Waste Electrical And Electronic Equipment (Weee) Directive 2002/96/Ec
To contact Keysight for sales and technical support, refer to the support links on the following Keysight websites: – www.keysight.com/find/usbthermosensor (product-specific information and support, software and documentation updates) – www.keysight.com/find/assist (worldwide contact information for repair and service) Keysight U8480 Series Service Guide... - Page 8 THIS PAGE HAS BEEN INTENTIONALLY LEFT BLANK. Keysight U8480 Series Service Guide...
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Page 9: Table Of Contents
......... .38 Disassembly/Reassembly Procedure ......41 Keysight U8480 Series Service Guide... - Page 10 ......45 Returning the U8480 Series for Service ......46 Packaging the U8480 Series for shipment .
- Page 11 List of Figures Figure 3-1 U8480 Series (AC-coupled) block diagram ..34 Figure 4-1 Illustrated parts breakdown .....39...
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- Page 13 List of Tables Table 4-1 Replaceable parts list for the U8480 Series ..40 Keysight U8480 Series Service Guide...
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- Page 15 Keysight U8480 Series USB Thermocouple Power Sensor Service Guide General Information Specifications and Characteristics Cleaning This chapter provides the specifications and maintenance information of the U8480 Series USB Thermocouple Power Sensor.
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Page 16: General Information
General Information Specifications and Characteristics For the characteristics and specifications of the U8480 Series USB Thermocouple Power Sensor, refer to the datasheet at http://literature.cdn.keysight.com/litweb/pdf/5991-1410EN.pdf. Keysight U8480 Series Service Guide... -
Page 17: Cleaning
General Information Cleaning Use a clean, water-dampened cloth to clean the body of the U8480 Series. Connector care A solution of pure isopropyl or ethyl alcohol can be used to clean the connector but make sure to keep in mind its flammable nature. - Page 18 General Information THIS PAGE HAS BEEN INTENTIONALLY LEFT BLANK. Keysight U8480 Series Service Guide...
- Page 19 Zero Set Performance Verification Internal Calibration Performance Verification Adjustments This chapter contains the performance verification procedures which verify that the U8480 Series is operating within its published specifications. This chapter also provides information on adjustments performed after a performance verification fails.
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Page 20: Performance Verification And Adjustments
For valid performance verification, the following conditions must be met: NOTE – The U8480 Series and test equipment must be allowed a 1-hour warm up period for all specifications. – The ambient temperature must be within 25 ºC ± 10 ºC. - Page 21 Operating system: Windows XP Professional Service Pack 2 or — above (32-bit) Software: Keysight BenchVue Power Meter/Power Sensor Control & Analysis App and Keysight IO Libraries Suite 16.0 or above [a] DUT stands for Device-Under-Test. Keysight U8480 Series Service Guide...
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Page 22: Voltage Standing Wave Ratio (Vswr) Performance Verification
3 Calibrate the network analyzer using the appropriate calibration kit. Perform calibration for the open, short, and load circuits of the network analyzer. 4 After calibration, connect the U8480 Series to the test port of the network analyzer. Turn on Correction on the network analyzer to perform the VSWR measurement. - Page 23 85058B/E for the U8488A, and 85059B for the U8489A). Perform calibration for the open, short, and load circuits of the network analyzer. 4 After calibration, connect the U8480 Series to the test port of the network analyzer. Turn on Correction on the network analyzer to perform the VSWR measurement.
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Page 24: Power Linearity Performance Verification
Power Linearity Performance Verification The power linearity performance verification measures the relative linearity error of the U8480 Series. All measurements are performed at 50 MHz. The reference power level for the linearity measurement is 0 dBm for the U8481A, U8485A, U8487A, U8488A, and U8489A. - Page 25 Procedure 1 Turn on the signal generator and power meter (with the reference sensor connected). Connect the DUT (U8480 Series) to the computer. Allow them to warm up for approximately an hour. 2 Zero and calibrate the DUT using the BenchVue Power Meter/Power Sensor Control &...
- Page 26 9 Compare the calculated linearity error to the root sum of the squares (RSS) of the U8480 series linearity specification and the reference power sensor linearity specification in the datasheet. If the verification fails, refer to “Adjustments” on page 31.
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Page 27: Zero Set Performance Verification
Suite installed. Procedure 1 Connect the DUT (U8480 Series) to the computer as shown in the following diagram. Then, launch the Keysight IO Libraries Suite on the computer. 2 Warm up the DUT for approximately 1 hour to allow the temperature to settle. - Page 28 14 Calculate the final Zero Set value by finding the average mean value of the 10 mean values. 15 Compare the calculated final Zero Set value to the specification in the datasheet. If the verification fails, refer to “Adjustments” on page 31. Keysight U8480 Series Service Guide...
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Page 29: Internal Calibration Performance Verification
– computer, with the BenchVue Power Meter/Power Sensor Control & Analysis App and the Keysight IO Libraries Suite installed Procedure 1 Turn on the power meter, and connect the DUT (U8480 Series) to the computer. 2 Launch the Keysight IO Libraries Suite on the computer, and connect the DUT to the 1 mW reference calibration connector of the power meter. - Page 30 7 Read the power level of the DUT by sending “READ?”, and then record the reading. 8 Compare the reading to the specification in the datasheet. If the verification fails, repeat steps 3 to 7. If the verification fails for three times consecutively, refer to “Adjustments” on page 31. Keysight U8480 Series Service Guide...
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Page 31: Adjustments
Performance verification must be completed after any repairs that may have altered the characteristics of the U8480 Series. The U8480 Series is required to be returned to Keysight for adjustments. To arrange this, contact the Keysight Service Center. Refer to “Sales and... - Page 32 Performance Verification and Adjustments THIS PAGE HAS BEEN INTENTIONALLY LEFT BLANK. Keysight U8480 Series Service Guide...
- Page 33 Theory of Operation Theory of Operation Theory of Operation This chapter describes the operation and functions of the U8480 Series assembly. Keysight U8480 Series Service Guide...
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Page 34: Theory Of Operation
Theory of Operation Theory of Operation The U8480 Series is an RF/μW power measurement device which is based on the thermocouple sensing element in order to provide a wider frequency range, and most importantly, higher accuracy and repeatability. This new thermocouple-based USB power sensor is a combination of Keysight's traditional power meter and power sensor packaged in a smaller form factor. - Page 35 The analog circuitry correction is combined with the linearity correction algorithm to achieve the internal calibration process. Internal calibration is allowable if there is RF input to the U8480 Series; it will not impact the U8480 Series performance.
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- Page 37 Keysight U8480 Series USB Thermocouple Power Sensor Service Guide Repair Guide Replaceable Parts Disassembly/Reassembly Procedure This chapter details the replaceable parts of the U8480 Series. It also explains how to assemble and disassemble the U8480 Series.
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Page 38: Repair Guide
NOTE personnel and are not available for trade sales. The following figure illustrates the parts breakdown of the U8480 Series which identifies all the replaceable parts. If you want to order a part, quote the Keysight Keysight U8480 Series Service Guide... - Page 39 Repair Guide part number, specify the quantity required, and address the order to the nearest Keysight Sales and Service office. Figure 4-1 Illustrated parts breakdown Keysight U8480 Series Service Guide...
- Page 40 Repair Guide Table 4-1 Replaceable parts list for the U8480 Series Reference Option Part number Quantity Description designation U8481-66001 U8481A replacement sensor module — AC-coupled U8481A U8481-66002 U8481A replacement sensor module — DC-coupled U8485-66001 U8485A replacement sensor module — AC-coupled...
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Page 41: Disassembly/Reassembly Procedure
Repair Guide Disassembly/Reassembly Procedure Disassemble the U8480 Series only in a static-free workstation. Electrostatic CAUTION discharge renders the U8480 Series inoperative. Disassembly procedure Use the following steps to disassemble the U8480 Series. 1 Remove the top label as shown below. -
Page 42: Reassembly Procedure
3 Replace the defective module with a new module. Reassembly procedure Tools required for reassembly Tool Purpose Quantity Torque value M2 Torx screwdriver To fit the housing 4.0 lbs. in. Reassembly instructions The reassembly procedure is simply the reversal of the disassembly procedure. Keysight U8480 Series Service Guide... - Page 43 Keysight U8480 Series USB Thermocouple Power Sensor Service Guide Contacting Keysight Introduction Returning the U8480 Series for Service This chapter explains the appropriate actions to take if you have a problem with your U8480 Series.
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Page 44: Contacting Keysight
The serial number can be obtained from the serial number label. The serial number label is attached to the side panel of the U8480 Series. This label has two instrument identification entries. The first provides the instrument serial number and the second provides the identification number for each option built into the instrument. -
Page 45: Recommended Calibration Interval
– The suffix indicates an alphanumeric code which is used to ensure unique identification of each product throughout Keysight. SERIAL NUMBER SER MY12345678 Keysight MADE IN MALAYSIA Figure 5-1 Serial number Recommended calibration interval Keysight recommends a one-year calibration cycle for the U8480 Series. Keysight U8480 Series Service Guide... -
Page 46: Returning The U8480 Series For Service
91 kg (200 lb.) bursting strength. The carton must be large and strong enough to accommodate the U8480 Series and allow at least 3 to 4 inches on all sides of the U8480 Series for packing material. - Page 47 This information is subject to change without notice. Always refer to the Keysight website for the latest revision. © Keysight Technologies 2013 - 2020 Edition 8, March 19, 2020 Printed in Malaysia U8481-90004 www.keysight.com...