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NOTE: When you want to re-install the front panel, please reverse the steps
shown above. Make sure all the parts are properly seated and secured.

4.5

Assembly Drawings

The mechanical drawings provided in this section will help you to
disassemble and re-assemble the M3500A multimeter quickly. Section
4.5.1 shows the front panel assembly, section 4.5.2 shows the chassis and
transformer assembly, section 4.5.3 is the main board assembly, and
section 4.5.4 provides the chassis assembly drawings.

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Содержание M3500A

Страница 1: ...PICOTEST M3500A 6 5 Digit Digital Multimeter Service Manual Printed date 11 2011 ...

Страница 2: ...2 1 Current Input Fuse 7 A 18 2 3 PASS FAIL OUTPUT FROM USB CONNECTOR 21 2 4 MCUS DSP FIRMWARE UPGRADE 22 3 TROUBLESHOOTING 26 3 1 INTRODUCTION 26 3 2 SYSTEM FUNCTION BLOCKS 28 3 3 PANEL MODULE 29 3 4 MAIN BOARD MODULE 30 3 4 1 Power Supply Circuitry 31 3 4 2 Analog Front end Circuitry 32 3 4 3 ADC MCU 33 3 4 4 Main Control Circuitry 34 3 5 SELF TEST 35 4 DISASSEMBLY RE ASSEMBLY 39 4 1 INTRODUCTIO...

Страница 3: ...5 3 LAYOUT DRAWINGS 82 6 SIMPLE CALIBRATIONPROCEDURES 85 6 1 THE CALIBRATION SECURITY CODE 85 6 2 THE ZERO ADJUSTMENT 85 6 3 THEGAINADJUSTMENTFORDCV DCI 4W FREQ 86 6 4 THEGAINADJUSTMENTFORACV 87 6 5 CALIBRATIONCOUNT 88 6 6 CALIBRATIONDATE 88 6 7 THE CALIBRATION ERROR MESSAGES 88 APPENDIX 89 A SPECIFICATION LIST 89 B GENERAL SPECIFICATIONS 92 ...

Страница 4: ...r repair this product must be returned to a service facility designated by PICOTEST Please contact your local service representative Excluded Items This warranty does not include consumptive parts such as fuses buttons and relays Neither does this warranty cover defects caused by improper installation improper or insufficient maintenance unauthorized modification and improper operation ignorance o...

Страница 5: ...ead the manual before operating this device This manual is for reference only Please consult your local service representative for further assistance The contents of this manual may be amended by the manufacturer without notice Never dismantle the equipment by any unauthorized personnel or equipment may be damaged The equipment has been strictly tested for quality before delivery from our factory ...

Страница 6: ...fety information before using the product To avoid possible electric shock or personal injury please read and follow these guidelines carefully Follow the guidelines in this manual and DO NOT use the Meter if the case is damaged Check the Meter case and terminals and make sure all the devices are in the proper positions Do not apply excessive voltage to the Multimeter Apply voltage within the rate...

Страница 7: ...sentative Return the product to PICOTEST service department if necessary 1 6 Symbols and Terms This symbol indicates hazards that may cause damages to the instrument or even result in personal injury This symbol indicates high voltage may be present Use extra caution before taking any action This symbol indicates the frame or chassis terminal presented need to be connected to the actual earth grou...

Страница 8: ...re damage to your instrument 2 1 1 Voltage Selector Normally the line voltage is selected for your country properly when the multimeter is shipped from the factory Refer to your local power utility voltage to see if the setting is correct Follow the steps below to select a properly line voltage for your instrument if the setting is not fit your requirement NOTE In some areas the power utility volt...

Страница 9: ...timeter as shown in Figure 2 1 Also you should remove all the leads connected to it Figure 2 1 Step 3 Open the cap and remove the voltage setting selector from the right middle seam as shown in Figure 2 2 You might need a flat blade screwdriver to do so Figure 2 2 Window ...

Страница 10: ...de Figure 2 3 Step 5 Insert the voltage setting selector back into the socket and close the cap as shown in Figure 2 4 Check the setting from the window again Figure 2 4 NOTE Before re connecting the power line cord to your multimeter make sure that power switch is in the POWER OFF state ...

Страница 11: ...ing Do not perform this action unless you are qualified to do so For more information please contact your local service representative Step 1 Turn off the power and disconnect the line cord from your multimeter as shown in Figure 2 5 Also you should remove all the leads connected to it Figure 2 5 Step 2 Remove the handle and then the metal cover Please refer to section 4 2 for more detail Warning ...

Страница 12: ...try according to the regular line voltage selections for your country as shown in Figure 2 8 Figure 2 8 Step 4 Please refer to the Table 2 1 to connect the wires for your need Figure 2 9 Power Line Voltage Wire color 100 Vac Brown 120 Vac Red 220 Vac Orange 240 Vac Yellow Table 2 1 Power Entry Transformer ...

Страница 13: ...o the AC receptacle in the line voltage selector protects the power line input of the instrument Verify that the power line fuse is good and replace a new one if it is damaged The multimeter is shipped from the factory with a fuse 0 25 A 250 V slow blow 5 20 mm Picotest part number 024 001 000004 the reference number FS102 installed This is the correct fuse type for all line voltage settings Pleas...

Страница 14: ... For continued protection against fire or instrument damage only replace fuse with the same type and rating If the instrument repeatedly blows fuses locate and correct the cause of the trouble before replacing the fuse Step 3 Remove the broken fuse from the selector and replace a new one as shown in Figure 2 11 You must replace the fuse with the same type or same rating Figure 2 11 ...

Страница 15: ...d rear current input terminals to protect your multimeter against damage of strong current pulse The front and rear current input fuses used in M3500A are the type 3 15A 250 V 5 20 mm fast acting HBC and Ceramic Tube with high breaking character Picotest part number 024 001 000007 the reference number FS101 If you need to replace them please follow the steps shown below Warning For continued prote...

Страница 16: ...in Figure 2 13 Also you should remove all the test leads that connected to your instrument Figure 2 13 Step 2 Push the current input terminal and turn it right as shown in Figure 2 14 Figure 2 14 Step 3 Pull out the terminal fuse holder gently and you will find the current input ...

Страница 17: ...use and replace a new one with the same type or same rating as shown in Figure 2 16 Figure 2 16 Step 5 Insert the fuse holder back and turn it left as shown in Figure 2 17 Make sure the fuse holder is properly seated and secured Current input Fuse Fuse Current Fuse Holder ...

Страница 18: ...2 2 1 Current Input Fuse 7 A The current input Fuse provides an additional level of current protection The diagram in the below Figure 2 18 would let you know the function more clearly The fuse in M3500A is the type 7A 5 x 20 mm fast acting and Ceramic Tube Picotest part number 024 001 000006 the reference number FS103 To replace the fuse you have to release a holder by a flat blade screwdriver as...

Страница 19: ...onnect the power line cord as shown in Figure 2 19 Also you should remove all the test leads that connected to your instrument Figure 2 19 Step 2 Please use a flat blade screwdriver with a suitable pushing strength to turn it left for releasing the holder ...

Страница 20: ... terminal fuse holder gently and you will find the current input fuse as shown in Figure 2 21 Figure 2 21 Step 4 Remove the broken fuse and replace a new one with the same type or same rating as shown in Figure 2 22 Current input Fuse ...

Страница 21: ...ector When the USB interface is disabled IEEE 488 interface is selected the internal pass and fail TTL output signals limit testing will be connected to the USB connector The pass and fail signals are low true and indicate the Math Pass Fail Limit Test result for the next reading to be output to the GPIB interface The signals are active low for approximately 2ms 100 µ sec for each reading taken Fi...

Страница 22: ...ERFACE USB ENABLE DISABLE Or you can do this by the other way Procedure CONFIG SHIFT RATIO OUTPUT ENALBLE DISABLE Warning You can t use the USB interface if you want to enable the Pass Fail signal output You must use the GPIB interface for remote control Please disconnect the USB cable from you multimeter The signal from the USB cable may make the Pass Fail signal output abnormal 2 4 MCUs DSP Firm...

Страница 23: ... Download the latest firmware file for your instrument Step 2 Unzip the downloaded file you will find the files as shown in Figure 2 25 Please read the document include in the downloaded zip file for detail Figure 2 25 NOTE You can select the firmware file for the MCU that you want to upgrade only Please refer to Table 2 3 to choose the firmware file you need The code x at last of the file name in...

Страница 24: ... firmware file that you want to update for example DATA_X1_10A bin as shown in Figure 2 26b and open it Figure 2 26a Figure 2 26b Step 4 Restart your multimeter when the window as Figure 2 27 shows up Please ignore the ERR annunciator on the panel if it is lit after you restart your instrument It will disappear after you complete whole installation ...

Страница 25: ...e first code xx xx is the firmware version of the DSP Digital Signal Processor the second code xx is for the panel microprocessor and the last one indicates the front end MCU s firmware version If the result is incorrect update it again Also you can check the firmware version of DSP by pressing DISPLAY NEXT PREV button The DSP s firmware version will show on the lower raw display panel by the form...

Страница 26: ... supply circuitry analog front end circuitry DSP MCU and main control circuitry Self Test Explain to the self test procedures built in M3500A Warning Some procedures in this section may expose you to hazardous voltage or damage your instrument Do not perform these procedures unless you are qualified to do so Be sure to read the following considerations before making any repairs to the M3500A Repai...

Страница 27: ...ontainers designed to prevent static charge 2 Disassemble instruments only in a static free area 3 Ground yourself with a suitable wrist strap 4 Handle the devices only at a properly grounded work station 5 Minimize handling and do not touch the pins during handling the devices 6 Remove all plastic styrofoam vinyl paper and other materials that may generate static from your work station 7 Only use...

Страница 28: ...the same functions and users can choose one of them for their convenience Both front and rear terminal have a fused current input terminal Input I to protect against potential catastrophic damage caused by accidental input connection The current input fuses used in M3500A is the type 3 15A 250 V 5 20 mm fast acting ceramic tube with a high breaking character Picotest part number 024 001 000008 the...

Страница 29: ...y through data lines If any key is pressed a key down parameter will be sent to panel MCU Panel MCU U3 interprets the key down data and sends the data to the main controller on the main board module Main controller U1601 will operate according to the received data and then return the result to U3 According to the result from U1601 U3 sends control signals to the VFD vacuum fluorescent display for ...

Страница 30: ...cuit and then convert to digital signal by the ADC Digital signals are sent to main control circuit via opto couplers The calculated data will send to panel module and display the result on VFD The powers needed in these circuits are supplied by the power supply circuit The discussion about power supply circuit is provided in section 3 4 1 the circuitry theories of the analog front end circuit and...

Страница 31: ...t line voltage for your multimeter according to your local power utility voltage or damage may occur The power transformer has a total five secondary windings to produce AC and DC voltages for M3500A AC voltage is used to provide the VFD filament voltage and each DC supply uses a regulator circuit for various purposes Please refer to Figure 3 4 to check the purpose of each supplied voltage Power S...

Страница 32: ...the PGA circuit The PGA circuit switches the various signals for measurement In addition to the input signal it also switches among reference and zero signals at various phases of the measurement cycle DC input signals from Input HI terminal are routed via a protection circuit to the function switching circuit If an overload condition occurs the protection circuit will disconnect the analog input ...

Страница 33: ...g voltage drop is then routed through the protection circuit and measured by the function switching circuit For 4 wire ohms measurements Sense HI and Sense LO are connected to the function switching circuit too AC input voltage from the Input HI terminal is sent to a RMS to DC converter via protection circuit RMS to DC converter changes the input AC voltage to a DC voltage and then sends it to the...

Страница 34: ...the ADC circuit are then sent to the main controller on the main board module through the Tx lines via opto couplers When the multimeter is triggered an analog to digital conversion is performed The ADC starts by clearing the integrator slope count in the front end MCU and the slope count is latched at the end of the integration period The slope count provides the most significant bits of the inpu...

Страница 35: ... test procedures are built in M3500A for checking that the logic and measurement hardware are functioning properly Every time when the multimeter is powered on a set of test procedures is performed to make sure the basic function of the multimeter works properly If any error occurs during self test procedures it indicates that parts of the multimeter are not operating properly and need to be servi...

Страница 36: ...test failure This error is only readable from the remote interface 603 Front End MCU does not respond The main CPU U1601 attempts to establish serial communications with the front end processor U2001 Communication must function in both directions for this test to pass 604 A D noisy test failed This test configures to the 10V dc range with the internal 0V A 20ms ADC measurement is performed and the...

Страница 37: ... of the current source is measured A 20ms ADC measurement is performed and the result is checked against a limit of 0 12V 0 01V 614 DC 1000V zero failed This test configures to the 1000V dc range with no input applied A 20ms ADC measurement is performed and the result is checked against a limit of 0V 5 mV 615 Ohms 10 uA source failed This test configures to the 1000V dc range with the internal 10M...

Страница 38: ...ed against a limit of 0 12V 0 01V 620 AC rms zero failed This test configures for the 100mV ac range with the ac input grounded The internal residual noise of the ac section is measured and checked against a limit of 10mV to 70mV at the output of the rms to dc converter 621 AC rms full scale failed This test configures for the 100mV ac range The 1mA ohms current source is switched on to charge the...

Страница 39: ...arning Do not disassemble the M3500A multimeter unless you are qualified to do so 4 2 Case Cover Removal If you need to remove the case cover when you are troubleshooting your multimeter or you want to replace a component this section will show you how to do Warning Do not remove the case cover before you disconnect the line cord and all the test leads connecting to the multimeter or electric shoc...

Страница 40: ... with the multimeter and pull it out as shown in Figure 4 1 Figure 4 1 Step 2 Pull the front mounting ear out as shown in Figure 4 2 Figure 4 2 NOTE When re installing the front mounting ear make sure the ear is in the correct direction ...

Страница 41: ...ring the rear bezel on the chassis as Figure 4 3 shown Pull the bezel and the rear mounting ear out together Figure 4 3 Step 4 Remove one screw that secures the metal cover on the chassis The screw is on the bottom as shown in Figure 4 4 Figure 4 4 ...

Страница 42: ... the main board Of course you must complete the metal cover removal first Step 1 Remove the scanner card and GPIB card If there are no scanner card and GPIB card installed in your instrument please skip this step Remove two fasteners of GPIB card and two captive screws that secure the scanner card on the rear panel as shown in Figure 4 6 Pull out the scanner card gently ...

Страница 43: ...3 Figure 4 6 Loose the screw that secures the GPIB card on the plastic cylinder and remove the GPIB card carefully Figure 4 7 Disconnect the cable from GPIB card to the connector J1605 on the main board ...

Страница 44: ...power entry An incorrect connection will make the power supplied to the multimeter improperly and cause damage to your instrument For more information about the power transformer please refer to section 2 1 2 To remove the power switch rod from power entry turn the multimeter to the bottom Place the edge of a flat blade screwdriver in the notch on the pushrod and twist the driver gently while pull...

Страница 45: ...o grounding cords that connect between the rear panel and the left and right chassis are fastened by the screws pointed by blue arrows in Figure 4 10 Make sure the connections are correct when you re install the rear panel Grounding cord fastening screw Grounding cord fastening screw ...

Страница 46: ...om the chassis Remove the fastener of the front terminal set by the same way Figure 4 11 Step 3 Remove the transformer Loose the tow fastening screws as shown in Figure 4 12 Figure 4 12 Unplug the three cables to the connectors J2201 J2202 and J2203 and then remove the transformer Terminal set fastener ...

Страница 47: ...tch on the pushrod and twist the driver gently while pulling the rod from the shaft as shown in Figure 4 13 Figure 4 13 Step 5 Unplug the ribbon cable from the display panel to the connector J1604 and then remove the screw that secure the main board on the chassis as shown in Figure4 14 Figure 4 14 ...

Страница 48: ...o re install the main board please reverse the steps shown above Make sure all the parts are properly seated and secured 4 4 Front Panel Disassembly Follow the steps below to remove the front panel This procedure assumes that you removed the metal cover and main board already Step 1 Unscrew the input terminal heat conducting header and remove it as shown in Figure 4 16 Fixed point Fixed point ...

Страница 49: ...49 Figure 4 16 Step 2 Remove the fasteners of the right left chassis as shown in Figure 4 17 and then remove the chassis Figure 4 17 Heat conducting header ...

Страница 50: ... PCB board as Figure 4 18 Slide the front panel board to the right carefully to leave the fixed points and then remove the front panel board Figure 4 18 Step 4 Now you can remove the conductive keypad module easily as shown in Figure4 19 Figure 4 19 Fix Points Fix Points ...

Страница 51: ... 4 5 Assembly Drawings The mechanical drawings provided in this section will help you to disassemble and re assemble the M3500A multimeter quickly Section 4 5 1 shows the front panel assembly section 4 5 2 shows the chassis and transformer assembly section 4 5 3 is the main board assembly and section 4 5 4 provides the chassis assembly drawings ...

Страница 52: ...52 4 5 1 Front Panel Assembly ...

Страница 53: ...53 4 5 2 Chassis and Transformer Assembly ...

Страница 54: ...54 4 5 3 Main Board Assembly ...

Страница 55: ...55 ...

Страница 56: ...56 4 5 4 Chassis Assembly ...

Страница 57: ...57 ...

Страница 58: ...he M3500A s case cover For more information about case cover removal please refer to the Section 4 2 Case Cover Removal Then the GPIB assembly in the following just can proceed Step 1 Remove the screws by available tools Step 2 Remove the screws on the other side by available tools ...

Страница 59: ...59 Step 3 Remove the GPIB OPTION cover Step 4 Connect the GPIB cord to the socket of the main board Step 5 Adjust the card to a proper position Step 6 Fasten the card with a screw by a screwdriver ...

Страница 60: ...60 Step 7 Fasten the terminal by hand s assistance Step 8 Do it again on the other side Step 9 Fasten the terminal by tool s assistance Step 10 Do it again on the other side And finished ...

Страница 61: ...om layer 5 2 Parts List Parts list of M3500A main board Picotest Part NO Description Part Reference 056 001 000001 220pF 1206 NPO 200V 5 C101 056 001 000001 220pF 1206 NPO 200V 5 C103 056 001 000001 220pF 1206 NPO 200V 5 C511 056 001 000003 100nF 0603 X7R 50V 10 C1003 056 001 000003 100nF 0603 X7R 50V 10 C1004 056 001 000003 100nF 0603 X7R 50V 10 C1005 056 001 000003 100nF 0603 X7R 50V 10 C1006 05...

Страница 62: ...X7R 50V 10 C1510 056 001 000003 100nF 0603 X7R 50V 10 C1515 056 001 000003 100nF 0603 X7R 50V 10 C1601 056 001 000003 100nF 0603 X7R 50V 10 C1607 056 001 000003 100nF 0603 X7R 50V 10 C1608 056 001 000003 100nF 0603 X7R 50V 10 C1609 056 001 000003 100nF 0603 X7R 50V 10 C1610 056 001 000003 100nF 0603 X7R 50V 10 C1611 056 001 000003 100nF 0603 X7R 50V 10 C1612 056 001 000003 100nF 0603 X7R 50V 10 C1...

Страница 63: ...00nF 0603 X7R 50V 10 C301 056 001 000003 100nF 0603 X7R 50V 10 C303 056 001 000003 100nF 0603 X7R 50V 10 C402 056 001 000003 100nF 0603 X7R 50V 10 C403 056 001 000003 100nF 0603 X7R 50V 10 C404 056 001 000003 100nF 0603 X7R 50V 10 C405 056 001 000003 100nF 0603 X7R 50V 10 C501 056 001 000003 100nF 0603 X7R 50V 10 C502 056 001 000003 100nF 0603 X7R 50V 10 C503 056 001 000003 100nF 0603 X7R 50V 10 C...

Страница 64: ...0nF 0603 X7R 50V 10 C901 056 001 000003 100nF 0603 X7R 50V 10 C902 056 001 000003 100nF 0603 X7R 50V 10 C906 056 001 000003 100nF 0603 X7R 50V 10 C907 056 001 000004 1nF 0805 X7R 200V 10 C302 056 001 000005 220pF 0603 NPO 5 50V C401 056 001 000006 47pF 0603 NPO 5 50V C1311 056 001 000006 47pF 0603 NPO 5 50V C512 056 001 000006 47pF 0603 NPO 5 50V C806 056 001 000006 47pF 0603 NPO 5 50V C807 056 00...

Страница 65: ...603 NPO 50V 5 C1638 056 001 00000H 100pF 0603 NPO 50V 5 C1639 056 001 00000H 100pF 0603 NPO 50V 5 C1640 056 001 00000H 100pF 0603 NPO 50V 5 C1641 056 001 00000H 100pF 0603 NPO 50V 5 C1642 056 001 00000H 100pF 0603 NPO 50V 5 C1643 056 001 00000H 100pF 0603 NPO 50V 5 C1644 056 001 00000H 100pF 0603 NPO 50V 5 C1906 056 001 00000H 100pF 0603 NPO 50V 5 C1907 056 001 00000H 100pF 0603 NPO 50V 5 C1908 05...

Страница 66: ...56 001 00000q 100nF 0805 X7R 50V 10 C2209 056 001 00000q 100nF 0805 X7R 50V 10 C2237 056 001 00000S 33nF 0603 X7R 16V 10 C1009 056 001 00000S 33nF 0603 X7R 16V 10 C1011 056 001 00000U 10nF 1812 X7R 1kV 10 C2238 056 001 00000U 10nF 1812 X7R 1kV 10 C2239 056 001 00000U 10nF 1812 X7R 1kV 10 C2240 056 001 00000U 10nF 1812 X7R 1kV 10 C2241 056 001 00000U 10nF 1812 X7R 1kV 10 C2242 056 001 00000U 10nF 1...

Страница 67: ...009 000001 BLM18AG102SN1D 0603 L1301 057 009 000001 BLM18AG102SN1D 0603 L801 057 009 000001 BLM18AG102SN1D 0603 L802 057 009 000002 BLM18BD601SN1D 0603 L1201 057 009 000002 BLM18BD601SN1D 0603 L1202 057 009 000002 BLM18BD601SN1D 0603 L1203 057 009 000002 BLM18BD601SN1D 0603 L1204 057 009 000002 BLM18BD601SN1D 0603 L1205 057 009 000002 BLM18BD601SN1D 0603 L1206 057 009 000002 BLM18BD601SN1D 0603 L1...

Страница 68: ...060 002 000002 1M 1206 tolerance 1 1 4W R109 060 002 000003 10K 0603 tolerance 1 1 10W R1106 060 002 000003 10K 0603 tolerance 1 1 10W R119 060 002 000003 10K 0603 tolerance 1 1 10W R1306 060 002 000003 10K 0603 tolerance 1 1 10W R1614 060 002 000003 10K 0603 tolerance 1 1 10W R1615 060 002 000003 10K 0603 tolerance 1 1 10W R1616 060 002 000003 10K 0603 tolerance 1 1 10W R1617 060 002 000003 10K 0...

Страница 69: ...R509 060 002 000006 1K 0603 tolerance 1 1 10W R531 060 002 000006 1K 0603 tolerance 1 1 10W R804 060 002 000006 1K 0603 tolerance 1 1 10W R818 060 002 000006 1K 0603 tolerance 1 1 10W R903 060 002 000007 100K 0603 tolerance 1 1 10W R2009 060 002 000007 100K 0603 tolerance 1 1 10W R203 060 002 000007 100K 0603 tolerance 1 1 10W R205 060 002 000007 100K 0603 tolerance 1 1 10W R2213 060 002 000007 10...

Страница 70: ...0W R1704 060 002 00000G 4 75K 0603 tolerance 1 1 10W R1705 060 002 00000G 4 75K 0603 tolerance 1 1 10W R1706 060 002 00000G 4 75K 0603 tolerance 1 1 10W R1707 060 002 00000G 4 75K 0603 tolerance 1 1 10W R1708 060 002 00000G 4 75K 0603 tolerance 1 1 10W R1709 060 002 00000G 4 75K 0603 tolerance 1 1 10W R1710 060 002 00000G 4 75K 0603 tolerance 1 1 10W R1711 060 002 00000G 4 75K 0603 tolerance 1 1 1...

Страница 71: ...060 002 00000W 240K 0603 tolerance 1 1 10W R618 060 002 00000X 68 1K 0603 tolerance 1 1 10W R619 060 002 00000Y 56 2K 0603 tolerance 1 1 10W R620 060 002 00000Z 422R 0603 tolerance 1 1 10W R801 060 002 00000Z 422R 0603 tolerance 1 1 10W R815 060 002 000010 4 99K 0603 tolerance 1 1 10W R1008 060 002 000010 4 99K 0603 tolerance 1 1 10W R802 060 002 000010 4 99K 0603 tolerance 1 1 10W R813 060 002 00...

Страница 72: ...nce 1 1 10W R1005 060 002 00002B 348R 0603 tolerance 1 1 10W R1104 060 002 00002D 56R 0603 tolerance 1 1 10W R1109 060 002 00002E 75R 0603 tolerance 1 1 10W R1301 060 002 00002G 5 1K 0603 tolerance 1 1 10W R1313 060 002 00002I 1R 1206 tolerance 1 1 4W R2205 060 002 00002I 1R 1206 tolerance 1 1 4W R2206 060 002 00002J 47K 0603 tolerance 1 1 10W R2214 060 002 00002J 47K 0603 tolerance 1 1 10W R2215 ...

Страница 73: ...W R1624 060 002 00009Q 560K 0603 tolerance 1 1 10W R1108 060 002 0000A6 10R 0603 1 10W 1 R1625 060 002 0000A6 10R 0603 1 10W 1 R1626 060 002 0000A6 10R 0603 1 10W 1 R1627 060 002 0000A6 10R 0603 1 10W 1 R1628 060 002 0000A6 10R 0603 1 10W 1 R1629 060 002 0000A6 10R 0603 1 10W 1 R1630 060 002 0000A6 10R 0603 1 10W 1 R1631 060 002 0000A6 10R 0603 1 10W 1 R1632 060 002 0000A6 10R 0603 1 10W 1 R1801 0...

Страница 74: ... 061 001 00000B SMBJ70CA D2201 061 001 00000B SMBJ70CA D2204 061 001 00000C 1SMB5920BT3 D2208 061 001 00000D MMSZ11T1 VR301 061 001 00000D MMSZ11T1 VR302 061 001 00000D MMSZ11T1 VR303 061 001 00000D MMSZ11T1 VR305 061 001 00000E BZX84C6V2LT1 VR304 061 001 00000G 1SMA5917BT3 D2205 061 001 00000G 1SMA5917BT3 D2207 061 001 00000H MMSZ5243BT1 D403 061 003 000001 MMBF4393LT1 Q202 061 003 000001 MMBF439...

Страница 75: ...0001 DB104S CR2201 061 006 000001 DB104S CR2202 061 006 000001 DB104S CR2203 061 006 000001 DB104S CR2204 061 007 000001 MMBT3904LT1 Q312 061 007 000002 MMBT5089LT1 Q801 061 007 000003 MMBT5087LT1 Q802 061 007 000004 MMBT3906LT1 Q2001 061 007 000004 MMBT3906LT1 Q2002 061 007 000004 MMBT3906LT1 Q313 061 007 000005 MMBFJ177LT1 Q401 061 007 000007 MMBT6520LT1 Q303 061 007 000007 MMBT6520LT1 Q304 061 ...

Страница 76: ...001 063 002 000001 ULN2003ADR U1505 063 002 000001 ULN2003ADR U2102 063 003 000001 PDIUSBD12PW TSSOP U2101 063 004 000002 LM317LMX U2209 063 004 00000A TK71733SCL G U1507 063 004 00000F TPS70102PWP U2208 063 004 00000G LP3964EMP ADJ U2202 063 006 000001 CY7C1021CV33 10ZC U1701 063 006 000002 MX29LV400TTC 70 512KB 70ns Boot Top U1702 063 007 000001 XC95144XL 10TQ100C U1201 063 007 000002 SN74HC175D...

Страница 77: ...receptacle J2103 016 001 000001 G20006A HEADER1 TEST PIN J103 017 001 000002 FP2D3063 K2101 017 001 000002 FP2D3063 K301 017 001 000002 FP2D3063 K302 017 001 000002 FP2D3063 K303 024 002 000001 Fuse Holder F103 024 002 000004 Fuse 0 25A 250V 5 x 20 mm Slow Blow located in the voltage setting selector of the rear panel 024 002 000006 Fuse 7A 250V 5 x 20 mm Fast Acting located on the rear panel 024 ...

Страница 78: ...3 1 5L D101 057 002 000001 CG3 1 5L D103 057 017 000001 BK 101KD07 ENC101D 07A RV2201 057 017 000001 BK 101KD07 ENC101D 07A RV2204 057 017 000002 BK 470KD07 ENC470D 07B RV2202 057 017 000002 BK 470KD07 ENC470D 07B RV2203 057 017 000002 BK 470KD07 ENC470D 07B RV2205 057 017 000003 ERZV14D112 RV101 057 017 000003 ERZV14D112 RV102 057 017 000003 ERZV14D112 RV103 058 001 000001 6N137 ISO1101 058 001 0...

Страница 79: ...00007 MC7818CT U2201 063 004 000009 MC7918CT U2203 063 004 00000B LM1117T 5V U2207 063 004 00000C LM1117T 3 3V U2205 063 011 000002 10MHz Y1601 063 011 000003 6MHz Y2101 Table 5 1 Parts list of M3500A panel board Picotest Part NO Description Circuit Design 056 001 000003 100nF 0603 X7R 50V 10 C1 056 001 000003 100nF 0603 X7R 50V 10 C11 056 001 000003 100nF 0603 X7R 50V 10 C15 056 001 000003 100nF ...

Страница 80: ...K 0603 tolerance 1 1 10W R6 060 002 000006 1K 0603 tolerance 1 1 10W R28 060 002 000007 100K 0603 tolerance 1 1 10W R21 060 002 000007 100K 0603 tolerance 1 1 10W R22 060 002 000007 100K 0603 tolerance 1 1 10W R23 060 002 000007 100K 0603 tolerance 1 1 10W R24 060 002 000007 100K 0603 tolerance 1 1 10W R25 060 002 000007 100K 0603 tolerance 1 1 10W R26 060 002 000007 100K 0603 tolerance 1 1 10W R3...

Страница 81: ...B 3 01K 0603 tolerance 1 1 10W R45 060 002 00006B 3 01K 0603 tolerance 1 1 10W R46 060 002 00006B 3 01K 0603 tolerance 1 1 10W R9 061 001 00000A SMAJ14CA D3 061 001 00000A SMAJ14CA D4 061 001 00000B SMBJ70CA D2 061 001 00000F MMSZ39T1 D1 061 007 000008 BC856ALT1 Q1 061 007 000009 2SC2412K Q2 061 007 000009 2SC2412K Q3 063 001 00000G LM393MX U4 063 007 00000B MC74HC165ADR2 U5 063 009 000002 MC68HC9...

Страница 82: ...82 5 3 Layout Drawings Main board PCB components layout top layer Figure 5 1 ...

Страница 83: ...83 Main board PCB components layout bottom layer Figure 5 2 ...

Страница 84: ...84 Panel PCB components layout top layer Figure 5 3 Panel PCB components layout bottom layer Figure 5 4 ...

Страница 85: ... CODE ENTER input 123456 by using the UP button in the Range area NEXT button ENTER Users can execute the calibration adjustment procedures by entering UNSECURED NEXT CALIBRATE ENTER Note 1 The factory default is 123456 which is burned in the permanent memory of the M3500A If the default needs to be defined for purposes please use PT SET software 6 2 The Zero Adjustment Please follow the procedure...

Страница 86: ...NSECURED NEXT CALIBRATE ENTER By using the UP button in the Range area NEXT button to input a value which should be the one multiplying 0 9 to 1 1 with full scale The display will show input full scale such as the range value of the DC 100 mV should be between 0 900000E 01 and 1 100000E 01 refer to table 1 ENTER to do the adjustment Please note that if the operation procedures are failed or the ou...

Страница 87: ...3500A the display will show input full scale Please set the standard input voltage at source side in 100 relative to a range with full scale on the M3500A and the 100 value of the full scale must be between the value multiplying 0 9 and 1 1 For instance when users adjust the M3500A s AC range to 100 mV the output voltage of the standard source must be between 90 and 110 mV And the frequency must b...

Страница 88: ...number will turn into 0 6 6 Calibration Date The M3500A will record a calibrated and a future calibration dates as the factory default Please note that the dates are not allowed to be revised 6 7 The Calibration Error Messages Please take a look at the following messages Table 2 as calibration errors occur Table 2 ACV 100mV to 100V 0 9 to 1 1 10 full scale 0 9 to 1 1 100 full scale 0 9 to 1 1 10 f...

Страница 89: ...0 0 0006 0 0040 0 0007 10 00000 V 10 G Ω 0 0015 0 0004 0 0035 0 0005 100 0000 V 10 M Ω 0 0020 0 0006 0 0045 0 0006 1000 000 V 10 M Ω 0 0020 0 0006 0 0045 0 0010 Function Range Shunt Resistance 24 hours accuracy of reading of range 23 o C 1 o C 1 year accuracy of reading of range 23 o C 5 o C DCI DC Current 10 00000 mA 10 1 Ω 0 005 0 010 0 050 0 020 100 0000 mA 10 1 Ω 0 01 0 004 0 050 0 005 1 00000...

Страница 90: ...0 0 0005 0 010 0 001 100 0000 K Ω 10 µ A 0 0020 0 0005 0 010 0 001 1 000000 M Ω 5 µ A 0 002 0 001 0 010 0 001 10 00000 M Ω 500 nA 0 015 0 001 0 040 0 001 100 0000 M Ω 500 nA 10 MΩ 0 300 0 010 0 800 0 010 Diode Test 1 0000 V 1 mA 0 002 0 010 0 010 0 020 Continuity 1000 00 K Ω 1 mA 0 002 0 010 0 010 0 020 Period Frequency Characteristics Function Range Frequency Hz 24 hours accuracy of reading of ra...

Страница 91: ... 4 00 0 50 1 000000 V to 750 000 V 3 5 1 00 0 02 1 00 0 03 5 10 0 35 0 02 0 35 0 03 10 20K 0 04 0 02 0 06 0 03 20K 50K 0 10 0 04 0 12 0 05 50K 100K 0 55 0 08 0 60 0 08 100K 300K 4 00 0 50 4 00 0 50 ACI AC RMS Current 1 000000 A 3 5 1 00 0 04 1 00 0 04 5 10 0 30 0 04 0 30 0 04 10 5K 0 10 0 04 0 10 0 04 3 00000 A 3 5 1 10 0 06 1 10 0 06 5 10 0 35 0 06 0 35 0 06 10 5K 0 15 0 06 0 15 0 06 Note 1 Speci...

Страница 92: ...01 EN61010 1 2001 2nd Edition Over Voltage Category CAT II CAT I 1000V UL61010 1 2004 Installation CAT II Measurement CAT III at max 1000V Pollution Degree 2 EMC EN61326 1 2006 EN61326 2 1 2006 EMI CISPR 11 1997 A1 1999 A2 2002 Class B IEC61000 3 2 2000 IEC61000 3 3 1994 A1 2001 EMS IEC61000 4 2 1995 A1 1998 A2 2000 IEC61000 4 3 2002 IEC61000 4 4 2004 IEC61000 4 5 1995 A1 2000 IEC61000 4 6 1996 A1...

Страница 93: ...ltage AC Digits 5 DC digits Slow 5 1 PLC Range Auto Current AC Digits 5 DC Digits Slow 5 1 PLC Range Auto Frequency and Period Digits 5 Range AUTO Rate Medium 100ms Diode Test Digits 5 Range 1mA Rate 0 1 PLC Resistance 2 wire Digits Slow 5 1 PLC Range Auto Temperature Digits Slow 6 10 PLC Thermocouple Universal Type Triggers Source Immediate Delay Auto Input Resistance 10MΩ ...

Страница 94: ...000 3 3 1994 A1 2001 EMS IEC61000 4 2 1995 A1 1998 A2 2000 IEC61000 4 3 2002 IEC61000 4 4 2004 IEC61000 4 5 1995 A1 2000 IEC61000 4 6 1996 A1 2000 IEC61000 4 8 1993 A1 2000 IEC61000 4 11 1994 A1 2000 Safety IEC61010 1 2001 EN61010 1 2001 2nd Edition UL61010 1 2004 13 Aug 2009 Date Mr Hawk Shang General Manager For more information please contact your local supplier sales office or distributor a Us...

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