Agilent 4285A Precision LCR Meter (Including Option 001, 002, 201, 202, 301) Maintenance Manual SERIAL NUMBERS This manual applies directly to instruments whose serial number prefix is 3009J-, and whose ROM-based firmware is version 01.00. For additional important information about serial numbers, read CHAPTER 1, SERIAL NUMBER of the 4285A Operation Manual. '. ; .' '-::';~:" Agilent Technologies Agilent Part No.
Notice The information contained in this document is subject to change without notice. This document contains proprietary information that is protected by copyright. All rights are reserved. No part of this document may be photocopied, reproduced, or translated to another language without the prior written consent of the Agilent Technologies. Agilent Technologies Japan, Ltd.
Manual Printing History The manual printing date and part number indicate its current edition. The printing date changes when a new edition is printed. (Minor corrections and updates that are incorporated at reprint do not cause the date to change.) The manual part number changes when extensive technical changes are incorporated. April 1990 ............................................ First Edition (part number: 04285-90030) April 2000 .........................................
Certification Agilent Technologies certifies that this product met its published specifications at the time of shipment from the factory. Agilent Technologies further certifies that its calibration measurements are traceable to the United States National Institute of Standards and Technology, to the extent allowed by the Institution's calibration facility, or to the calibration facilities of other International Standards Organization members.
Exclusive Remedies The remedies provided herein are buyer's sole and exclusive remedies. Agilent Technologies shall not be liable for any direct, indirect, special, incidental, or consequential damages, whether based on contract, tort, or any other legal theory. Assistance Product maintenance agreements and other customer assistance agreements are available for Agilent Technologies products. For any assistance, contact your nearest Agilent Technologies Sales and Service Office.
Safety Summary The following general safety precautions must be observed during all phases of operation, service, and repair of this instrument. Failure to comply with these precautions or with specific WARNINGS elsewhere in this manual may impair the protection provided by the equipment. In addition it violates safety standards of design, manufacture, and intended use of the instrument. The Agilent Technologies assumes no liability for the customer's failure to comply with these requirements.
Safety Symbols General definitions of safety symbols used on equipment or in manuals are listed below. Instruction manual symbol: the product is marked with this symbol when it is necessary for the user to refer to the instruction manual. Alternating current. Direct current. On (Supply). o Off (Supply) . ...c:J... In position of push-button switch. Out position of push-button switch. Frame (or chassis) terminal.
HOW TO USE THIS MANUAL This manual consists of Chapter 1 (Performance Tests). Chapter 1 provides the information to performance test the 4285A.
4285A Precision LCR Meter Documentation Map Getting Started Guide The Getting Started Guide walks you through system setup and initial power-up, shows how to make basic measurements and explains commonly used features. Operation Manual The Operation Manual provides general information, specifications, GPIB programing information, and in depth reference information. Maintenance Manual The Maintenance Manual explains how to verify conformance to published specifications.
TABLE OF CONTENTS CHAPTER 1. PERFORMANCE TESTS 1-1 1-1. INTRODUCTION 1-1 1-2. TEST EQUIPMENT 1-1 1-3. PERFORMANCE TEST RECORD 1-3 1-4. INITIAL OPERATING PROCEDURE 1-4 1-5. SYSTEM RESET 1-4 1-6. TEST FREQUENCY ACCURACY TEST 1-5 1-7. TEST SIGNAL LEVEL MONITOR ACCURACY TEST 1-6 1-7 -1. 1-7-2. Low Frequency Test High Frequency Test 1-6 1-8 1-8. TEST SIGNAL LEVEL ACCURACY TEST 1-11 1-9. IMPEDANCE MEASUREMENT ACCURACY TEST 1-13 1-10. STORE AND LOAD FUNCTION TEST 1-24 1-11.
Agilent 4285A Precision LCR Meter Maintenance Manual Manual Change Agilent Part No. N/A June 2012 Change 1 Revised Minimum, Maximum & Measurement Uncertainty in Test Signal Frequency Accuracy Test. Test Frequency Minimum 100 kHz 99.990 kHz Measured Value Maximum Measurement Uncertainty 100.010 kHz 1.00 Hz 149 kHz 148.985 kHz 149.015 kHz 1.49 Hz 1 MHz 0.99990 MHz 1.00010 MHz 10.0 Hz 10 MHz 9.9990 MHz 10.0010 MHz 100 Hz 16 MHz 15.9984 MHz 16.0016 MHz 160 Hz 17 MHz 16.9983 MHz 17.
Change 3 Revised Minimum, Maximum & Measurement Uncertainty in Test Signal Level Accuracy Test. Test Frequency Test Signal Level Minimum 100 kHz 1V 1 MHz 1 MHz 1 MHz Monitor Reading Maximum Measurement Uncertainty 0.919 V 1.081 V 0.042 V 5 mV 3.580 mV 6.420 mV 0.210 mV 20 mV 17.32 mV 22.68 mV 0.840 mV 100 mV 90.6 mV 109.4 mV 4.200 mV 1 MHz 1V 0.915 V 1.085 V 0.042 V 1 MHz 2V 1.831 V 2.169 V 0.084 V 10 MHz 1V 0.879 V 1.121 V 0.060 V 30 MHz 1V 0.799 V 1.201 V 0.
Change 5 Revised Minimum, Maximum & Measurement Uncertainty in Impedance Measurement Accuracy Test (10pF STANDARD (0 m)). 10 pF STANDARD (0 m) C.V.: (Cal.Value at 1MHz) Test Frequency: 1MHz Upper Value: Capacitance (Cp) Lower Value: Dissipation Factor (D) Test Signal Level 5 mV 20 mV 100 mV 1V 2V Maximum Measurement Uncertainty C.V. - 0.0689 pF C.V. + 0.0689 pF 0.0025 pF -0.0069 0.0069 0.0002 C.V. - 0.0307 pF C.V. + 0.0307 pF 0.0025 pF -0.0031 0.0031 0.0002 C.V. - 0.0244 pF C.V. + 0.
Change 6 Revised Minimum, Maximum & Measurement Uncertainty in Impedance Measurement Accuracy Test (100pF STANDARD (0 m)). 100 pF STANDARD (0 m) C.V.: (Cal.Value at 1MHz) Test Frequency: 1MHz Upper Value: Capacitance (Cp) Lower Value: Dissipation Factor (D) Test Signal Level 5 mV 20 mV 100 mV 1V 2V Maximum Measurement Uncertainty C.V. - 0.636 pF C.V. + 0.636 pF 0.0250 pF -0.0064 0.0064 0.0002 C.V. - 0.222 pF C.V. + 0.222 pF 0.0250 pF -0.0022 0.0022 0.0002 C.V. - 0.153 pF C.V. + 0.
Change 7 Revised Minimum, Maximum & Measurement Uncertainty in Impedance Measurement Accuracy Test (1000pF STANDARD (0 m)). 1000 pF STANDARD (0 m) C.V.: (Cal.Value at 1MHz) Test Frequency: 1MHz Upper Value: Capacitance (Cp) Lower Value: Dissipation Factor (D) Test Signal Level 5 mV 20 mV 100 mV 1V 2V Maximum Measurement Uncertainty C.V. - 3.59 pF C.V. + 3.59 pF 0.5000 pF -0.0036 0.0036 0.0002 C.V. - 1.52 pF C.V. + 1.52 pF 0.5000 pF -0.0015 0.0015 0.0002 C.V. - 1.52 pF C.V. + 1.52 pF 0.
Change 8 Revised Minimum, Maximum & Measurement Uncertainty in Impedance Measurement Accuracy Test (20 cm AIR LINE (0 m)). 20 cm AIR LINE (0 m) C.V.: (Cal.Value at 1MHz) Test Frequency: 1MHz Upper Value: Capacitance (Cp) Lower Value: Dissipation Factor (D) Test Frequency Test Signal Level 1.1 MHz 1V 1.1 MHz 2V 2 MHz 1V 2 MHz 2V 5 MHz 1V 5 MHz 2V 10 MHz 20 mV 10 MHz 100 mV 10 MHz 1V 10 MHz 2V 20 MHz 1V 20 MHz 2V 30 MHz 1V 30 MHz 2V Maximum Measurement Uncertainty C.V.
Change 9 Revised Minimum, Maximum & Measurement Uncertainty in Impedance Measurement Accuracy Test (100pF STANDARD (1 m)). 100 pF STANDARD (1 m) C.V.: (Cal.Value at 1MHz) Test Frequency: 1MHz Upper Value: Capacitance (Cp) Lower Value: Dissipation Factor (D) Maximum Measurement Uncertainty C.V. - 0.220 pF C.V. + 0.220 pF 0.0250 pF -0.0022 0.0022 0.0002 C.V. - 0.285 pF C.V. + 0.285 pF 0.0250 pF -0.0029 0.0029 0.
Change 11 Revised Minimum, Maximum & Measurement Uncertainty in Impedance Measurement Accuracy Test (20 cm AIR LINE (1 m)). 20 cm AIRLINE (1 m) C.V.: (Cal.Value at 1MHz) Test Frequency: 1MHz Upper Value: Capacitance (Cp) Lower Value: Dissipation Factor (D) Test Frequency Test Signal Level 10 MHz 1V 10 MHz 2V 30 MHz 1V 30 MHz 2V Maximum Measurement Uncertainty C.V. - 0.2022 pF C.V. + 0.2022 pF 0.0230 pF -0.0150 0.0150 0.0016 C.V. - 0.1889 pF C.V. + 0.1889 pF 0.0230 pF -0.0140 0.
Change 13 Revised Minimum, Maximum & Measurement Uncertainty in Impedance Measurement Accuracy Test (1000pF STANDARD (2 m)). 1000 pF STANDARD (2 m) C.V.: (Cal.Value at 1MHz) Test Frequency: 1MHz Upper Value: Capacitance (Cp) Lower Value: Dissipation Factor (D) Test Signal Level 1V 2V Minimum Measured Value C.V. - 2.19 pF Maximum Measurement Uncertainty C.V. + 2.19 pF 0.5000 pF -0.0022 0.0022 0.0002 C.V. - 2.55 pF C.V. + 2.55 pF 0.5000 pF -0.0025 0.0025 0.
Change 15 Revised Minimum, Maximum & Measurement Uncertainty in DC BIAS LEVEL ACCURACY TEST (OPTION 001 ONLY). Maximum Measurement Uncertainty -0.0010 V 0.0010 V 0.001 mV 0.1 V 0.0989 V 0.1011 V 0.011 mV 2V 1.9970 V 2.0030 V 0.022 mV 6V 5.9920 V 6.0080 V 0.062 mV 14 V 13.981 V 14.019 V 0.198 mV 30 V 29.960 V 30.040 V 0.390 mV 40 V 39.950 V 40.050 V 0.510 mV -0.1 V -0.1011 V -0.0989 V 0.011 mV -2 V -2.0030 V -1.9970 V 0.022 mV Bias Voltage Minimum 0.
Agilent 4285A Precision LCR Meter Maintenance Manual Manual Change Agilent Part No. N/A July 2007 Change 1 Change the figure 1-15 of DC Bias Level Accuracy Test Setup without the Interface Box (page 1-27) as follows.
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CHAPTER 1 PERFORMANCE TESTS 1-1. INTRODUCTION This chapter provides the test procedures to verify that the HP 4285A meets the specificaAll tests can be performed without accesstions listed in the HP 4285A Operation Manual. , ing the interior of the instrument. Performance tests are used to perform incoming inspection and to verify that the HP 4285A is within its performance specifications after troubleshooting or adjustment have been performed.
Table 1-1. Recommended Test Equipment (1 of 2) Equipment Requirements Recommended Model Electronic Counter Frequency: 75 kHz to 30 MHz Accuracy: <<0.01 % HP 5334B RMS Voltmeter Frequency: 75 kHz to 1 MHz Voltage range: 5 mVrms to 2 Vrms Accuracy: «4% HP 3458A Power Meter Frequency: 1 MHz to 30 MHz Accuracy: «4% HP 436A Power Sensor No substitute HP 8482A LCR Meter 1 No substitute HP 4284A DC Voltmeter 2 Voltage range: -40 V to 40 V Accuracy:: <<0.
Table 1-2.
1-4. INITIAL OPERATING PROCEDURE Before starting the performance tests, the following procedure must be performed. [Procedure] 1. Turn the HP 4285A ON. NOTE Steps 2 through 4 must be performed only when the HP 4285A is equipped with Option 002 Accessory Control Interface. 2. Press the CATALOG SYSTEM key and the 'SYSTEM CON FIG' softkey to display the SYSTEM CON FIG page. 3. Move the cursor to the CON FIG field, using the CURSOR arrow keys. 4.
PERFORMANCE TESTS 1-6. TEST FREQUENCY ACCURACY TEST This test verifies that the HP 4285A test frequency accuracy is within ±0.01 %. The accuracy is specified for an ambient temperature range of 23°C ±5 °C. HP 4285A ELECTRONIC COUNTER _ClClClOCICIO CI CI CI CI CI CI CI CI CI CICICI ClCICICIOO CI CICICICI CI CI CICIO e ......... e D~DDDD~~ 8 ~DDD 0 o o o e L...-J 0 000i 0 0 000 0 0000 CI 0 CI I = L---I I L--J BNC(m)-BNC(m) Cable. 61 em Figure 1-1.
PERFORMANCE TESTS 1-7. TEST SIGNAL LEVEL MONITOR ACCURACY TEST This test verifies that the HP 4285A test signal level monitor accuracy is within ±[(4+O.2xfm)% of reading + Vm x 0.002]. (fm:test frequency [MHz], Vm: test signal level setting) The accuracy is specified for an ambient temperature range of 23 0 C ±5 0 C. The test consists of a Low Frequency Test and a High Frequency Test. 1·7 -1.
PERFORMANCE TESTS EQUIPMENT: Interface Box Multimeter BNC(m)-BNC(m) Cable, 61 cm BNC(f) to dual banana plug Adapter HP HP HP HP PN 04284-65007 3458A PN 8120-1839 PN 1251-2277 PROCEDURE: 1. Set up the equipment as shown in Figure 1-2. NOTE If the Interface Box is not available, use the following cables and adapters as a substitute. Figure 1-3 shows the test setup without the interface box. BNC(m)-BNC(m) Cable, 30 cm Tee, BNC(m)(f)(f) Adapter HP PN 8120-1838 2 ea. HP PN 1250-0781 2.
PERFORMANCE TESTS Table 1-4. Test Signal Level Monitor Accuracy Test Limit Test Frequency 100 1 1 1 1 Test Signal Level kHz MHz MHz MHz MHz 1 20 100 1 2 Test Limit V mV mV V V M.R. M.R. M.R. M.R. M.R. ± 0.042xM.R. ± 0.044xM.R. ± 0.044xM.R. ± 0.044xM.R. ± 0.044xM.R. M.R.: Multimeter Reading 1-7-2. HIGH FREQUENCY TEST HP 4285A I D I o I~oM oo~oo~: o . I I o o 0 o 0 '--~.,...J Power Meter OCiO' 0 CI 000 0 OCiOO 0 000 000 = 0 INTERFACE BOX TEST SIGNAL §.........
PERFORMANCE TESTS EQUIPMENT: Interface Box Power Meter Power Sensor Power Splitter BNC(m)-BNC(m) Adapter BNC(m)-N(f) Adapter BNC(m)-BNC(m) Cable, 30 cm HP HP HP HP HP HP HP PN 04284-65007 436A 8482A PN 04192-61001 PN 1250-0216 PN 1250-1477 PN 8120-1838 PROCEDURE: 1. Calibrate the Power Meter for the Power Sensor. 2. Set up the equipment as shown in Figure 1-4. NOTE If the Interface Box is not available, use the following cables and adapters as a substitute.
PERFORMANCE TESTS Power Splitter Vo' P [w]::: Power Sensor Vo' (V] ::: J50 (ohm] X P [w] 50 [ohm] + 50 [ohm] 50 Vo [V] ::: X Vo' ::: 2 X J 50 (ohm] X P (w] P: Power Meter Reading 50 [ohm] Figure 1-6. Test Signal Voltage Calculation 9. Calculate the test limit according to the Calculation Sheet. 10. Confirm that the Level Monitor reading (Vm) is within the specified test limits. 11. Perform the test for a" settings listed in Table 1-5 by repeating steps 5 to 10 for each listed setting.
PERFORMANCE TESTS 1-8. TEST SIGNAL LEVEL ACCURACY TEST This test verifies that the HP 4285A test signal level accuracy is within ±[(8+O.4xfm)% of reading + 1 mY]. (fm:test frequency [MHz]) The accuracy is specified for an ambient temperature range of 23 0 C ±5 0 C. NOTE The Test Signal Level Monitor Accuracy Test, described in paragraph 1-7, must be successfully completed before performing this test, because the test signal level accuracy is measured by the Test Signal Level Monitor.
PERFORMANCE TESTS 7. Confirm that the Level Monitor reading (Vm) is within the specified test limits listed in Table 1-6. 8. Set the test frequency and the test signal level according to Table 1-6, and confirm that the Level Monitor readings are within the specified test limits listed in Table 1-6. Table 1-6. Test Signal Level Accuracy Test Limits Test Frequency 100 1 1 1 1 1 10 30 kHz MHz MHz MHz MHz MHz MHz MHz Test Signal Level 1 5 20 100 1 2 1 1 V mV mV mV V V V V Test Limit 0.919 3.580 17.32 90.
PERFORMANCE TESTS 1-9. IMPEDANCE MEASUREMENT ACCURACY TEST This test verifies the HP 4285A Impedance Measurement accuracy. 20 em Air Line / 0 S HP 4284A B 0 Dr--~ o DOD DODD : o MODO 0 0 ~OD 0 DODD 0 o D 00000 0 . 0 I OS I = o ohm L.-.-I L.-.-I g CJ I 1 o o Terminal Adapter Standard Capacitor Figure 1-8. Air Line Calibration Setup HP 4285A D~ o DOD OOOO~: o ODD' O 0 o 0M 0 DOD o 0 DODD 0 0 OCi"Oo o . 0 I = I Test Leads (1 m.
PERFORMANCE TESTS HP 4285A Test Leads (1 m. 2 m) g OS OS 20 em Air Line 20 em Air Line Terminal Adapter Terminal Adapter Figure 1-10.
PERFORMANCE TESTS PROCEDURE: NOTE The Impedance Measurement Accuracy Test consists of the following seven blocks. Air Line Calibration Steps 1 to 27 om Low Frequency Test Steps 28 to 45 o m High Frequency Test Steps 46 to 61 1 m Low Frequency Test Steps 62 to 76 1 m High Frequency Test Steps 77 to 86 2 m Low Frequency Test Steps 87 to 101 2 m High Frequency Test Steps 102 to 111 Air Line Calibration 1.
PERFORMANCE TESTS 6. Move the cursor to the FREQ1 field, and press the 'MEAS OPEN' softkey to store the open correction data. 7. Connect the SHORT Termination to the HP 4284A's UNKNOWN terminals. 8. Press the 'MEAS SHORT' soft key to store the short correction data. 9. Press the MEAS SETUP MENU key to display the MEAS SETUP page. 10. Move the cursor to the FREQ field, and set the test frequency to 1.00000 MHz. 11.
PERFORMANCE TESTS o m Low Frequency Test 28. Initialize the HP 4285A by performing a SYSTEM RESET as described on page 1- 4. 29. Move the cursor to the INTEG field, and press the 'LONG' softkey to set the integration time to long. 30. Move the cursor to the LEVEL field, and set the test signal level to 0.5 V. 31. Press the MEAS SETUP MENU key and the 'CORRECTION' softkey to display the CORRECTION page. 32. Set the CORRECTION page as shown in Figure 1-12.
PERFORMANCE TESTS 41. Press the 'DISPLAY FORMAT MENU' key to display the MEAS DISPLAY page. 42. Connect the 1 pF Standard to the HP 4285A's UNKNOWN terminals. 43. Move the cursor to the LEVEL field, and set the test signal level to 5 mY. 44. Press the TRIGGER key, and confirm that the HP 4285A's reading is within the specified test limits listed in table 1-7. 45. Perform the test for all standards and settings listed in Table 1-7, by repeating steps 42 to 44 for each listed setting and standard. Table 1-7.
PERFORMANCE TESTS 52. Connect the 0 terminal. n Termination (04191-85030) to the Terminal Adapter's OUTPUT 53. Move the cursor to the SHORT field. 54. Press the 'MEAS SHORT' softkey to store the short correction data. 55. Press the 'DISPLAY FORMAT MENU' key to display the MEAS DISPLAY page. 56. Connect the 20 cm Air Line to the Terminal Adapter's OUTPUT terminal. 57. Connect the 0 S Termination to the 20 cm Air Line. 58. Move the cursor to LEVEL field, and set the test signal level to 1 V. 59.
PERFORMANCE TESTS 64. Move the cursor to CABLE CORRECTION MENU field. 65. Press the 1 and ENTER keys to start the 1 m Cable Correction. 66. Perform the 1 m Cable Correction according to the instruction on the HP 4285A's LCD. 67. Press the MEAS SETUP MENU key and the 'CORRECTION' softkey to display the CORRECTION page. 68. Move the cursor to CABLE field, and press the '1 m' softkey to set the cable length to 1 m. 69. Connect the 1 m Test Leads (HP 16048A) to the UNKNOWN terminals. 70.
PERFORMANCE TESTS 1 m High Frequency Test 77. Connect the Terminal Adapter to the HP 4285A's UNKNOWN terminal with the 1 m Test Leads. 78. Move the cursor to the LEVEL field, and set the test signal level to 0.5 V. 79. Store the OPEN CORRECTION data and the SHORT CORRECTION data, refer to steps 48 to 54. 80. Press the 'DISPLAY FORMAT MENU' key to display the MEAS DISPLAY page. 81. Connect the 20 cm Air Line to the Terminal Adapter's OUTPUT terminal. 82. Connect the 0 S Termination to the 20 cm Air Line. 83.
PERFORMANCE TESTS 2 m Low Frequency Test 87. Move the cursor to the LEVEL field, and set the test signal level to 0.5 V. 88. Press the CATALOG SYSTEM MENU key and 'CABLE CORREC' softkey to display the CABLE CORRECTION page. 89. Move the cursor to the CABLE CORRECTION MENU field. 90. Press the 2 and ENTER keys to start the 2 m Cable Correction. 91. Perform the 2 m Cable Correction according to the instructions displayed on the HP 4285A's LCD. 92.
PERFORMANCE TESTS 2 m High Frequency Test 102. Move the cursor to the LEVEL field, and set the test signal level to 0.5 V. 103. Connect the Terminal Adapter to the HP 4285A's UNKNOWN terminals using the 2 m Test Leads. 104. Store the OPEN CORRECTION data and the SHORT CORRECTION data, refer to steps 48 to 54. 105. Press the 'DISPLAY FORMAT MENU' key to display the MEAS DISPLAY page. 106. Connect the 20 cm Air Line to the Terminal Adapter's OUTPUT terminal. 107.
PERFORMANCE TESTS 1-10. STORE AND LOAD FUNCTION TEST This test verifies the HP 4285A's ability to store information to, and load information from a memory card. EQUIPMENT: HP PN 04278-89001 Memory Card PROCEDURE: 1. Perform a SYSTEM RESET as described on page 1-4. 2. Insert a memory card into the MEMORY card slot. 3. Display the MEAS SETUP page. NOTE This test should be performed from the MEAS SETUP page. 4. Change the measurement function from Cp-D to Cp-G, in the FUNC field. 5.
PERFORMANCE TESTS 1-11. HP-IB INTERFACE TEST This test verifies the HP 4285A'S HP-IB function. HP-IB Cable HP 4285A / D~~o~~~ D~ 0 D DOD. 0 B O D ODo D 00= 0 o 00000 ~ 0 0 J COMPUTER I Q 0---_ n U -- I ~ Figure 1-13. HP-IB Interface Test Setup EQUIPMENT: HP 9000 Series 200 Model 226 HP 10833A Personal Technical Computer HP-IB Cable PROCEDURE: 1. Set the HP 4285A's HP-IB address to 17. 2. Set up the equipment as shown in Figure 1-13. Set the computer's interface Select Code to (7). 3.
PERFORMANCE TESTS 6. Press the HP 4285A LCL key. 7. Confirm that the LTN lamp stays ON, the RMT lamp is OFF, and the soft key label page can be changed by pressing the MENU keys. 8. Press the computer's STEP key to execute line 30 and confirm that the TLK lamp is ON. 9. Step to line 40 and confirm that the following message is displayed on the computer. "HEWLETT-PACKARD,4285A,O,REV01.00" 10. Step to line 60, and confirm that the SRQ, LTN, and RMT lamps are ON. 11.
PERFORMANCE TESTS 1-12. DC BIAS LEVEL ACCURACY TEST (OPTION 001 ONLY) This test verifies that the HP 4285A Internal DC Bias Level accuracy meets the following specifications. The accuracy is specified for an ambient temperature range of 23 ° C ± 5 °C. Voltage Range ±(O.OOO ±(4.002 ±(8.005 ±(20.01 to to to to Setting Accuracy ±(0.1 % ±(0.1 % ±(0.1 % ±(0.1 % 4.000) V 8.000) V 20.000) V 40.
PERFORMANCE TESTS PROCEDURE: 1. Connect the equipment as shown in Figure 1-14. NOTE If the Interface Box is not available, use the following cables and adapters as a substitute. Figure 1-15 shows the test setup without the interface box. The center conductors of HeuR and HpOT are connected to the Hiinput of the multimeter. The center conductors of the LeuR and LpOT are connected to Lo-input of the multimeter. HP PN 8120-1838 2 ea.
PERFORMANCE TESTS 1-13. VOLTAGE RATIO MONITOR ACCURACY TEST (OPTION 002 ONLY) This test verifies that the HP 4285A voltage Ratio Monitor accuracy is within ± 1%. The accuracy is specified for an ambient temperature range of 23 0 C ±5 0 C. NOTE The detailed voltage ratio monitor specification is described in the HP 42851A Operation Manual. HP 4285A I HP 42851A D o Accessory Control IF Cable I o~ I~8 M oo~oo lkJfI o o 0 000 0 CJCJ CJ CJCJoo 0 I = 0 0 0 D I BNC(m)-BNC(m) Cable. 30 cm .0.
PERFORMANCE TESTS 3. Move the cursor to the CONFIG field, and press the 'Q Adapter' softkey to set the H P 4285A to Q measurement mode. 4. Perform a SYSTEM RESET as described on page 1-4. 5. Press the MEAS SETUP MENU key to display the MEAS SETUP page. 6. Move the cursor and set the HP 4285A as follows. FREQ: TUNE: LEVEL: TRIG: 1 MHz FIX-C 150 mV MAN 7. Press the DISPLAY FORMAT MENU key to display the MEAS DISPLAY page. 8. Set the step attenuator to 0 dB. 9.
PERFORMANCE TESTS 1-14. ACCESSORY CONTROL INTERFACE FUNCTION TEST (OPTION 002 ONLY) This test verifies the Accessory Control Interface functions. EQUIPMENT: HP PN 42841-65001 HP 6214C Bias Interface Simulator DC Power Supply PROCEDURE: 1. Set all switches of S1 and S2 on the bias interface simulator to '1' as shown in Figure 1-17. S2 DI8 TO 15 S1 DIO TO 7 o 8 -"-"0 ~~~~~~~~ -"-"0 ~~~~~~~~ o t TP1 TP2 CJ CJ~O ®®~~OC~O .00011.OO0".0000.oOQoeooo. 000000000000;>0000000000000 Figure 1"-17.
PERFORMANCE TESTS NOTE DC power for the bias interface simulator can be supplied from the HP 4285A instead of from an external DC power supply. For further details, see paragraph 1-18, SUPPLYING DC POWER TO THE SIMULATOR on page 1-44. 3. Interconnect the bias interface simulator and bias interface connector on the rear panel of the HP 4285A with the bias interface cable as shown in Figure 1-18.
PERFORMANCE TESTS 9. Press the 'TEST START' softkey. NOTE Check the settings of S1 and S2 described in the Step 1, if the HP 4285A's LCD displays "E74:lIlegal test setup". 10. Confirm that the /RESET LED on the bias interface simulator turns ON. 11. Confirm that the CSO and CS1 LEOs on the simulator turn ON as the HP 4285A's output signal is displayed on the LCD. (Refer to Figure 1-19). 12.
PERFORMANCE TESTS 1-15. HANDLER INTERFACE FUNCTION TEST (OPTION 201 ONLY) Perform this test only when troubleshooting the Option 201 Handler Interface Board. This test verifies the Option 201 handler interface functions. EQUIPMENT: Handler Simulator HP PN 04278-65001 PROCEDURE: 1. Disconnect the power cable from the HP 4285A and allow enough time (a few minutes), for the internal capacitors to discharge.
PERFORMANCE TESTS 7. Remove the handler interface board. NOTE Before performing step 8, make a note of the jumper settings so that you can return them to their original settings after you finish this test. 8. Set the jumpers on the handler interface board as shown in Figure in 1-21. Figure 1-21 shows the jumper settings when the board is shipped from the factory. SET: All Jumper Switches to position "N" OPEN (removed) : R101 thru R121 Figure 1-21. Jumper Settings 9.
PERFORMANCE TESTS HP 4285A HANDLER SIMULATOR ggg Figure 1-22. Handler Interface Function Test Set Up 12. Press the CATALOG/SYSTEM MENU key. 13. Press the 'SELF TEST' softkey to display the SELF TEST page. 14. Use the CURSOR arrow keys to move the cursor to the TEST MENU field. 15. Press the 4 and the ENTER keys to select the Handler I/F test. 16. Press the 'TEST START' softkey. 17.
PERFORMANCE TESTS 18. Press the 'TEST END' softkey. ICAUTION I DO NOT EXECUTE ANY SELF TEST EXCEPT FOR THE HANDLER IIF TEST OR THE HP 4285A WILL BECOME INOPERATIVE. THE REMAINING SELF TESTS ARE FOR SERVICE USE ONLY. 19. Return the jumper settings on the handler interface board to their original settings.
PERFORMANCE TESTS 1-16. HANDLER INTERFACE FUNCTION TEST (OPTION 202 ONLY) Perform this test only when troubleshooting the Option 202 handler interface board. This test verifies the Option 202 handler interface functions. When this test is performed the following LEOs WILL NOT turn ON because the signals they represent are not used by the Option 202 handler interface board. PHI-, PLO·, SREJ·, UNBAL- and ALARM· EQUIPMENT: Handler Simulator Cable HP PN 04278-65001 HP PN 04278-61635 PROCEDURE: 1.
PERFORMANCE TESTS OPEN W1, W4, W5, W7, W8, W11, W12 SHORT W2, W3, W6, W9, W10, W13 OPEN (removed) R101 thru R113 Figure 1-24. Jumper Settings 5. Replace the handler interface board, top shield board, rear feet, and the top cover. 6. Turn the HP 4285A ON. 7. Connect the handler interface connector on the HP 4285A's rear panel with the handler simulator as shown in Figure 1-25. HP 4285A HANDLER SIMULATOR Figure 1-25.
PERFORMANCE TESTS 8. Press the CATALOG/SYSTEM MENU key. 9. Press the 'SELF TEST' soft key to display the SELF TEST page. 10. Move the cursor to the TEST MENU field. 11. Press the 4 and ENTER keys to select the Handler I/F test. 12. Press the 'TEST START' softkey. 13. Confirm that the LEOs on the handler simulator board turn ON in accordance with the HP 4285A's output signals displayed on the LCD. The LEOs should turn ON in the sequence shown in Figure 1-26. I -' « z ,",,"(T)C"\l.,....
PERFORMANCE TESTS 1-17. SCANNER INTERFACE FUNCTION TEST (OPTION 301 ONLY) Perfonn this test only when troubleshooting the Option 301 scanner interface board. This test verifies the Option 301 scanner interface function. EQUIPMENT: HP PN 04278-65301 HP 6214C Scanner Simulator DC Power Supply Test Leads PROCEDURE: 1. Perform steps 1 through 5 described on pages 10-26. 2. Disconnect the flat cable from the scanner interface board.
PERFORMANCE TESTS ~C!!Jl ~~1 -c::iiI2 -~2 (ii::J 3 c:::J!I 3 SWI C!!i c:::!!J ~ c::::J 4 5 c:!!6 r:::=J 5 r:::=J 6 c:!!J 7 c::::J 7 SW2 c::iiI 8 Cii]8 00000 °0 TPI TP2 TP3 TP4 TPS EXT EXT CO~I VOC GND ~TRG II111!111111!11! II II SCANNER DCV -I s~ lotH iU II S"' o INTERFACE BOARD Figure 1-27. SW1 and SW2 Settings 5. Replace the scanner interface board and reconnect the flat cable. 6. Set the DC power supply output voltage to +5 V.
PERFORMANCE TESTS HP 4285A SCANNER SIMULATOR To DC POWER SUPPLY TP2 GND TP1 Vee 8 o 00 0 ~ 60 I L- SCANNER INTERFACE P Connector [C 0 11~~DD 10001000 0 DD~~ BODO o o ~ 000010 1:1 DODD 0 0 0 0 I "" I L..-J L..-.-J Figure 1-28. Scanner Simulator Connections 8. Turn the HP 4285A ON. 9. Press the CATALOG/SYSTEM MENU key. 10. Press the 'SELF TEST' softkey to display the SELF TEST page. 11. Use the CURSOR arrow keys to move the cursor to the TEST MENU field. 12.
PERFORMANCE TESTS 1-18. SUPPLYING DC POWER TO THE SIMULATOR This paragraph describes the procedure for supplying +5 V DC to the Bias Interface Simulator or the Scanner Simulator from the internal circuits of the HP 4285A interior. PROCEDURE: 1. Disconnect the power cable from the HP 4285A and allow enough time (a few minutes), for the internal capacitors to discharge. IWARNING I DANGEROUS ENERGY/VOLTAGE EXISTS WHEN THE HP 4285A IS IN OPERATION, AND FOR A TIME AFTER IT IS POWERED DOWN.
CALCULATION SHEET TEST SIGNAL LEVEL MONITOR ACCURACY TEST Low Frequency Test Test Test Signal Multimeter Minimum Maximum Frequency Level Reading Limit Limit axO.958 ax1.042 [a] 100 kHz [V] 1V [V] ax1.044 axO.956 1 MHz [mV] 20 mV [mV] 100 mV ax1.044 [V] 1V ax1.044 [V] axO.956 1 MHz [V] 2V [mV] [mV] axO.956 1 MHz [mV] [mV] axO.956 1 MHz [V] [V] ax1.044 [V] [V] High Frequency Test Test Frequency Power Meter Reading [a] Measured Voltage [b]=2x/O.
IMPEDANCE MEASUREMENT ACCURACY TEST 10 pF Cal. Value 10 pF Meas. Value Air Line Meas. Value Air Line Cal.
PERFORMANCE TEST RECORD Hewlett-Packard HP 4285A Tested by Precision LCR Meter Date Serial No. TEST SIGNAL FREQUENCY ACCURACY TEST Test Frequency Minimum Maximum Measured Value Measurement Uncertainty 100 kHz 99.990 kHz 100.010 kHz 0.0010 kHz 149 kHz 148.985 kHz 149.015 kHz 0.0015 kHz 1 MHz 0.99990 MHz 1.00010 MHz 0.00001 MHz 10 MHz 9.9990 MHz 10.0010 MHz 0.00010 MHz 16 MHz 15.9984 MHz 16.0016 MHz 0.00016 MHz 17 MHz 16.9983 MHz 17.0017 MHz 0.00017 MHz 30 MHz 29.
TEST SIGNAL LEVEL ACCURACY TEST Test Test Signal Frequency Level Minimum Measured Value Maximum Measurement Uncertainty 1 Vrms 0.919 V 1.081 V 0.042 V 1 MHz 5 mVrms 3.580 mV 6.420 mV 0.210 mV 1 MHz 20 mVrms 17.32 mV 22.68 mV 0.84 mV 1 MHz 100 mVrms 90.6 mV 109.4 mV 4.2 mV 100 kHz 1 MHz 1 Vrms 0.915 V 1.085 V 0.042 V 1 MHz 2 Vrms 1.831 V 2.169 V 0.084 V 10 MHz 1 Vrms 0.88 V 1.12 V 0.06 V 30 MHz 1 Vrms 0.80 V 1.20 V 0.10 V 30 MHz 2 Vrms 1.60 V 2.40 V 0.
10 pF STANDARD (0 m) C.V. : _ _ _ _ _ (Cal. Value at 1 MHz) Test Frequency: 1 MHz Upper Value: Lower Value: Test Signal Level Minimum Measured Value Capacitance (Cp) Dissipation Factor (D) Maximum Measurement Uncertainty 5 mV C.V. -0.068 pF -0.0068 C.V. +0.068 pF 0.0068 0.0025 pF 0.0002 20 mV C.V. -0.030 pF -0.0030 C.V. +0.030 pF 0.0030 0.0025 pF 0.0002 100 mV C.V. -0.024 pF -0.0024 C.V. +0.024 pF 0.0024 0.0025 pF 0.0002 1 V C.V. -0.024 pF -0.0024 C.V. +0.024 pF 0.0024 0.0025 pF 0.
1000 pF STANDARD (0 m) C.V. : _ _ _ _ _ (Cal. Value at 1 MHz) Test Frequency: 1 MHz Upper Value: Lower Value: Test Signal Level Minimum Measured Value Capacitance (Cp) Dissipation Factor (D) Maximum Measurement Uncertainty 5 mV C.V. -3.5 pF -0.0035 C.V. +3.5 pF 0.0035 0.5 pF 0.0002 20 mV C.V. -1.5 pF -0.0015 C.V. +1.5 pF 0.0015 0.5 pF 0.0002 100 mV C.V. -1.5 pF -0.0015 C.V. +1.5 pF 0.0015 0.5 pF 0.0002 1 V C.V. -1.5 pF -0.0015 C.V. +1.5 pF 0.0015 0.5 pF 0.0002 2 V C.V. -1.8 pF -0.
20 cm AIR LINE (0 m) C.V.: (Cal. Value at 1 MHz) Upper Value: Lower Value: Test Test Signal Frequency Level Minimum Measured Value Capacitance (Cp) Dissipation Factor (0) Maximum Measurement Uncertainty 1.1 MHz 1 V C.V. -0.032 pF -0.0023 C.V. +0.032 pF 0.0023 0.0072 pF 0.0005 1.1 MHz 2 V C.V. -0.028 pF -0.0020 C.V. +0.028 pF 0.0020 0.0072 pF 0.0005 2 MHz 1 V C.V. -0.030 pF -0.0022 C.V. +0.030 pF 0.0022 0.0076 pF 0.0005 2 MHz 2 V C.V. -0.044 pF -0.0032 C.V. +0.044 pF 0.0032 0.
C.V. : _ _ _ _ _ (Cal. Value at 1 MHz) 100 pF STANDARD (1 m) Test Frequency: 1 MHz Upper Value: Lower Value: Maximum Measurement Uncertainty C.V. -0.22 pF -0.0022 C.V. +0.22 pF C.V.0.0022 0.025 pF 0.0002 C.V. -0.28 pF -0.0028 C.V. +0.28 pF 0.0028 0.025 pF 0.0002 Test Signal Level Minimum 1 V 2 V Measured Value Capacitance (Cp) Dissipation Factor (D) (Cal. Value at 1 MHz) C.V. : 1000 pF STANDARD (1 m) Test Frequency: 1 MHz Upper Value: Lower Value: Maximum Measurement Uncertainty C.V.
C.V. : _ _ _ _ _ (Cal. Value at 1 MHz) 100 pF STANDARD (2 m) Test Frequency: 1 MHz Upper Value: Lower Value: Test Signal Level Minimum 1 V 2 V Measured Value Capacitance (Cp) Dissipation Factor (0) Maximum Measurement Uncertainty C.V. -0.22 pF -0.0022 C.V. +0.22 pF 0.0022 0.025 pF 0.0002 C.V. -0.28 pF -0.0028 C.V. +0.28 pF 0.0028 0.025 pF 0.0002 C.V. : _ _ _ _ _ (Cal.
STORE AND LOAD FUNCTION TEST PASS [ ] FAIL [ ] Hp·IB INTERFACE TEST PASS [ ] FAIL [ ] DC BIAS LEVEL ACCURACY TEST (OPTION 001 ONLY) Bias Voltage o Minimum Measured Value Maximum Measurement Uncertainty V -0.0010 V 0.0010 V 0.001 mV 0.1 V 0.0989 V 0.1011 V 0.011 mV 2 V 1.9970 V 2.0030 V 0.022 mV 6 V 5.9920 V 6.0080 V 0.062 mV 14 V 13.981 V 14.019 V 0.198 mV 30 V 29.960 V 30.040 V 0.390 mV 40 V 39.950 V 40.050 V 0.510 mV -0.1 V -0.1011 V -0.0989 V 0.011 mV -2 V -2.
VOLTAGE RATIO MONITOR ACCURACY TEST (OPTION 002 ONLY) C.V. (Step Attenuator 20 dB Cal.Value at 1 MHz): _ _ _ _ _ [dB] Minimum Maximum Measurement Uncertainty C.V.+0.086 dB 0.022 [dB] Measured Value C.V.-0.
APPENDIXA MANUAL CHANGES A-1.INTRODUCTION This appendix contains the information required to adapt this manual to earlier versions or configurations of the HP 4285A than the current printing date of this manual. The information in this manual applies directly to HP 4285A Precision LCR Meters whose serial number prefix is listed on the title page of this manual. A-2.
NOTES A-2
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