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Agilent Technologies 85037A, Operating And Service Manual

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Agilent Technologies 85037A Operating And Service Manual Download Page 48

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Summary of Contents for 85037A

Page 1: ...recision Detectors Serial Numbers This manual applies directly to Agilent 85037A B detectors with serial number 00101 and above Part Number 85037 90013 Printed in USA October 2002 Supersedes November...

Page 2: ...n or for incidental or consequential damages in connection with the furnishing performatnce or use of this material Hewlett Packard to Agilent Technologies Transition This documentation supports a pro...

Page 3: ...NTIES EITHER EXPRESS OR IMPLIED WITH REGARD TO THIS MANUAL AND ANY INFORMATION CONTAINED HEREIN INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURP...

Page 4: ...icated conditions are fully understood and met Warning Warning denotes a hazard It calls attention to a procedure which if not correctly performed or adhered to could result in injury or loss of life...

Page 5: ...D 2 2 Static Safe Workstation 2 2 Static Safe Practices 2 2 Power Requirements 2 3 Cable Lead Identi cation 2 3 Mating Connectors 2 3 Connecting an 85037A B 2 3 Mating a Precision 3 5 mm Connector to...

Page 6: ...quency Response at a Nominal 010 dBm 4 5 Description 4 5 Procedure 4 6 Con guring the System 4 6 Measuring the Source 4 7 Measuring the Detector 4 7 Computing the Maximum Error 4 8 Dynamic Power Accur...

Page 7: ...r Messages 7 1 Repair 7 1 Replacing the Detector 7 2 Removing the Covers 7 2 Replacing the Cable Assembly W1 7 3 A Caring for Connectors Visual Inspection A 1 Cleaning A 1 Mechanical Inspection A 2 In...

Page 8: ...ng Adjustment 5 2 5 2 Coarse Zero Adjustment 5 3 5 3 Feedthrough Nulling Adjustment 5 4 6 1 Detectors and Cable Marker Kit 6 2 6 2 Module Exchange Program 6 4 7 1 Removing the Detector Covers 7 2 7 2...

Page 9: ...DC detection modes For improved power measurement accuracy versus frequency each Agilent 85037 series precision detector includes detector speci c frequency response data stored in an internal EEPROM...

Page 10: ...work analyzer One of the following A directional bridge A directional coupler A sweep oscillator or synthesized sweeper For ratio measurements use A power splitter or dual directional coupler AC Detec...

Page 11: ...11 0 40 040 0 40 0 80 050 0 85 1 30 055 0 85 1 30 Temperature Coe cient of Linearity 0 01 dB C temp change after calibration 1 The 85037A B speci cations only apply when used with the 8757D scalar ne...

Page 12: ...0 11 0 40 030 0 11 0 40 040 0 40 0 80 050 0 85 1 30 055 0 85 1 30 Temperature Coe cient of Linearity 0 01 dB C temp change after calibration 1 The 85037A B speci cations only apply when used with the...

Page 13: ...mm 85037A Option 001 Recession of the center conductor2 0 to 0 003 in Collet resilience After you depress the collet it must spring back out Precision 3 5 mm 85037B Recession of the male center conduc...

Page 14: ...onal Bridge Compatible with 8757D AC DC detection 85027A B C Power Meter 436A 437B or 438A Calibrated Power Sensor Type N Precision 7 mm Precision 3 5 mm 8481A 8481A Option 001 8485A 10 dB Attenuator...

Page 15: ...ectrically Either make a measurement or test to speci cations See Chapter 3 Operation or Chapter 4 Performance Tests If any of the following conditions exist notify your nearest Agilent o ce incomplet...

Page 16: ...fe station using two types of ESD protection that you can use either together or separately A conductive table mat and wrist strap combination A conductive oor mat and heel strap combination Figure 2...

Page 17: ...torque wrench See Table 1 4 Caution When tightening a connector do not apply more than the recommended torque value If you torque the connectors with more pressure than is recommended it can deform t...

Page 18: ...female connector contact ngers are tight Also some SMA male pins are not true pins but are the cut o ends of the center conductor in semi rigid coaxial cable In this case misalignment and burrs are l...

Page 19: ...Figure 2 3 SMA and 3 5 mm Connector Cross Sections and SWR Performance Installation 2 5...

Page 20: ...Packaging Containers and materials identical to those used in factory packaging are available Contact your local Agilent o ce for information If you package the detector using commercially available...

Page 21: ...box number because products cannot be returned to a P O box 2 A technical contact person with a complete phone number 3 The complete model and serial number of the detector 4 The type of service requi...

Page 22: ......

Page 23: ...nd ampli ed The ampli ed signal is a signal like that produced by AC detection Cautions Electrostatic discharge ESD can damage the highly sensitive microcircuits in this device charges as low as 100 V...

Page 24: ...lues Tighten the 85037A type N connector nger tight only Tighten the 85037A Option 001 with a torque wrench part number 8710 1766 set at 13 8 cm kg 12 in lb Tighten the 85037B with a torque wrench par...

Page 25: ...haracterized using the built in correction routine in the 8757D Once this is done the detector will meet the enhanced corrected speci cation for dynamic accuracy for both AC and DC measurements This c...

Page 26: ...ct NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN Start Freq and use the keypad to enter a value 6 Select NNNNNNNNNNNNNNNNNNNNNNNNNNNNN Stop Freq and use the keypad to enter a value 7 Select NNNNNNNNNNNNNNNNNNNNNNN...

Page 27: ...improved corrected power accuracy speci cation on the 8787D Option 002 only Measurements can be performed without this characterization such as on instruments without Option 002 however only the defau...

Page 28: ...envelope The envelope is provided through a 27 778 kHz square wave amplitude modulation of the RF test signal Test set connections vary depending on the source Figure 3 2 illustrates a typical measure...

Page 29: ...isplayed on the analyzer This could occur if the detector is defective or if you simply forgot to connect the detector under test to the Power Cal Output of the 8757D Upon completion of this routine t...

Page 30: ......

Page 31: ...eturn loss 2 dynamic accuracy AC and DC uncorrected 3 frequency response Equipment Required Preceding each test is an equipment table that lists which equipment you will need for that particular test...

Page 32: ...onnected to the test port of the bridge and its return loss is measured on the 8757D The three main sources of error in these measurements come from 1 bridge directivity 2 source match of the bridge 3...

Page 33: ...60001 Procedure 1 Connect the equipment as shown in Figure 4 1 with nothing connected to the bridge test port On the 8757D Press 4PRESET5 Press Channel 425 425 Pressing twice turns channel 2 o Allow...

Page 34: ...he detector under test to the test port of the bridge Press Function 4SCALE5 455 4dB5 Press 4CURSOR5 Use the cursor to nd the highest trace value the worst case measurement in each speci cation range...

Page 35: ...cond the DUT is characterized Finally a point by point di erence is computed plotted and compared to the speci cation window The manual test described in this procedure has an approximate root sum of...

Page 36: ...7B Power Splitter 11667B Power Meter 436A 437B 438A Calibrated Sensor 8485A 10 dB Attenuator 8493C Option 010 Crystal Detector 8473D Procedure Configuring the System 1 Connect the equipment as shown i...

Page 37: ...t frequencies as shown on the work sheet For example 4CW5 4 015 4GHz5 6 Using the Cal Factor Chart on the Power Sensor a Set the Cal Factor on the power meter to the value indicated for the test frequ...

Page 38: ...3 Repeat this step until all of the same frequency points have been measured Computing the Maximum Error 14 Using the values recorded in steps 6 and 12 subtract the value in step 6 from the value in s...

Page 39: ...y Response Graph Table 4 3 Worksheet Recommended Test Frequencies Frequency in GHz Measured Power dBm Source Power dBm Meas Power minus Source Power dB 0 01 0 04 0 10 2 6 10 14 16 18 20 22 24 26 5 Per...

Page 40: ...eci cations can be performed by using either of the two alternative setups shown in Figure 4 5 or Figure 4 6 Testing of the raw dynamic accuracy performance is the only test required The manual test p...

Page 41: ...DC 15 Repeat steps 6 through 12 for DC mode The detector should be rezeroed between the 030 and 040 dBm steps Figure 4 4 Dynamic Power Accuracy Test Setup First Alternate Dynamic Power Accuracy Descr...

Page 42: ...ure 1 Set the 8757D for CW DC mode cursor on 2 Set the step attenuator to 20 dB 3 Adjust the 8116 for a 50 MHz sinewave and adjust the amplitude for a cursor reading of 0 0 dBm 4 Adjust the step atten...

Page 43: ...Table 4 5 Test Record for 85037A Test Facility Report Number Date Customer Tested by Model Ambient temperature C Serial Number Relative humidity Options Special Notes Performance Tests 4 13...

Page 44: ...Table 4 5 Test Record for 85037A 2 of 3 Model Report Number Date Test Equipment Used Model Number Trace Number Cal Due Date 1 2 3 4 5 6 7 8 4 14 Performance Tests...

Page 45: ...GHz 60 30 dB 60 18 dB 0 04 to 18 GHz 60 20 dB 60 25 dB Dynamic Power Accuracy AC Mode uncorrected 19 dBm 60 4 dB 60 2 dB 10 dBm 60 4 dB 60 13 dB 030 dBm 60 4 dB 60 22 dB 040 dBm 60 8 dB 60 30 dB 050...

Page 46: ...4 16 Performance Tests...

Page 47: ...Table 4 6 Test Record for 85037A Option 001 Test Facility Report Number Date Customer Tested by Model Ambient temperature C Serial Number Relative humidity Options Special Notes Performance Tests 4 17...

Page 48: ...Table 4 6 Test Record for 85037A Option 001 2 of 3 Model Report Number Date Test Equipment Used Model Number Trace Number Cal Due Date 1 2 3 4 5 6 7 8 4 18 Performance Tests...

Page 49: ...0 04 GHz 60 30 dB 60 18 dB 0 04 to 18 GHz 60 20 dB 60 25 dB Dynamic Power Accuracy AC Mode uncorrected 19 dBm 60 4 dB 60 2 dB 10 dBm 60 4 dB 60 13 dB 030 dBm 60 4 dB 60 22 dB 040 dBm 60 8 dB 60 3 dB...

Page 50: ...4 20 Performance Tests...

Page 51: ...Table 4 7 Test Record for 85037B Test Facility Report Number Date Customer Tested by Model Ambient temperature C Serial Number Relative humidity Options Special Notes Performance Tests 4 21...

Page 52: ...Table 4 7 Test Record for 85037B 2 of 3 Model Report Number Date Test Equipment Used Model Number Trace Number Cal Due Date 1 2 3 4 5 6 7 8 4 22 Performance Tests...

Page 53: ...18 dB 0 04 to 18 GHz 60 20 dB 60 25 dB 18 GHz to 26 5 GHz 60 30 dB 60 3 dB Dynamic Power Accuracy AC Mode uncorrected 19 dBm 6 0 4 dB 60 2 dB 10 dBm 6 0 4 dB 60 13 dB 030 dBm 6 0 4 dB 60 22 dB 040 dBm...

Page 54: ......

Page 55: ...ustment Normally these two adjustments do not need to be performed They should only be performed if the zeroing routine fails Before attempting any adjustments Turn on all equipment and allow a minimu...

Page 56: ...pter 7 Service Figure 5 1 Coarse Zero Feedthrough Nulling Adjustment Equipment 8757D scalar network analyzer Procedure 1 Connect the equipment as shown in Figure 5 1 with no input to the detector 2 Pr...

Page 57: ...he 8757D 1 Press 4PRESET5 2 Press Channel 425 425 Pressing twice turns Channel 2 o 3 Press 4SYSTEM5 NNNNNNNNNNNNNN MORE NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN SWEEP MODE NNNNNNNNNNNNNNNNN CW ON to place the...

Page 58: ...l multi turn potentiometer which is on the top side of the PC board the same side as the cable wires Adjust it one half turn either direction See Figure 5 3 13 Repeat steps 9 through 12 until turning...

Page 59: ...es replaceable parts and ordering information Ordering Parts To order a part listed in the replaceable parts Table 6 2 quote the Agilent part number indicate the quantity required and address the orde...

Page 60: ...o ce Figure 6 1 Detectors and Cable Marker Kit Table 6 1 Miscellaneous Parts Item Description and Quantity Agilent Part Number 1 Plastic half body cover 2 85025 40006 2 Label warning max input 1 8503...

Page 61: ...r Gage Kits Type N 85054 80011 7 mm 85050 80012 3 5 mm 11752 60106 Collet Extractor Tool For 85037A Option 001 5060 0370 Adapters Type N f to BNC m 1250 1534 Type N m to Type N m 1250 1475 3 5 mm f to...

Page 62: ...Figure 6 2 Module Exchange Program 6 4 Replaceable Parts...

Page 63: ...tel 1 800 452 4844 Japan tel 81 426 56 7832 fax 81 426 56 7840 New Zealand tel 0 800 738 378 fax 64 4 495 8950 Canada tel 1 877 894 4414 fax 905 206 4120 Latin America tel 305 269 7500 fax 305 269 75...

Page 64: ......

Page 65: ...If the detector appears to be the cause of the problem then the detector needs to have the calibration constants regenerated at the factory Refer to Returning a Detector for Service in Chapter 2 Insta...

Page 66: ...cable end insert a small at blade screwdriver with a blade no greater than 3 5 mm 1 8 in between the side label and the raised edge See Figure 7 1 Make sure you insert the screwdriver as far forward...

Page 67: ...y Caution Do not over tighten the vice you can bend the frame 6 Using a 7 16 inch open ended wrench unscrew the cable hex nut 7 Remove the old cable assembly 8 Remove the metal housing from the cable...

Page 68: ...Repair Figure 7 2 Cable Connections 7 4 Service...

Page 69: ...s burrs scratches rounded shoulders and similar signs of wear or damage Any visible problem can degrade performance clean reinspect and if necessary replace the connector Cleaning Try compressed air r...

Page 70: ...mechanically inspect coaxial connectors Gage a connector at the following times Before you use it for the rst time If either visual inspection or electrical performance indicates that the connector in...

Page 71: ...1 coarse zero adjustment 5 1 computing the maximum error 4 8 worksheet 4 9 connector care A 1 cleaning A 1 mating 2 3 mating a 3 5 mm to an SMA connector 2 4 mechanical inspection A 2 torque values 3...

Page 72: ...nstallation 2 1 M mat use 2 2 measurement errors sources 4 2 measurements AC detection 3 6 DC detection 3 5 measurement system con guration 3 4 measuring the detector 4 7 measuring the source 4 7 mixe...

Page 73: ...rations 2 1 service 7 1 returning detector for service 2 7 setup AC detection mode 3 4 6 DC detection mode 3 4 5 static safe practices 2 2 workstation 2 2 storage and shipment 2 6 environment 2 6 T ta...

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