Extech Instruments 7630 Operation Manual
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Extech Instruments 7630 Operation Manual

Touch current tester
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7630
Touch Current Tester
Operation Manual
EXTECH Electronics Co., Ltd.
TEL: 886-26570123
FAX: 886-26573066
11F-1, No. 408, Ruiguang Rd., Neihu
Website: http://www.extech-electronics.com
District, Taipei 114, Taiwan
EVR 1.07
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Summary of Contents for Extech Instruments 7630

  • Page 1 7630 Touch Current Tester Operation Manual EXTECH Electronics Co., Ltd. TEL: 886-26570123 FAX: 886-26573066 11F-1, No. 408, Ruiguang Rd., Neihu Website: http://www.extech-electronics.com District, Taipei 114, Taiwan EVR 1.07...
  • Page 3 WARRANTY EXTECH ELECTRONICS CO., LTD., certifies that the instrument listed in this manual meets or exceeds published manufacturing specifications. This instrument was calibrated using standards that are traceable to Chinese National Laboratory Accreditation (CNLA). Your new instrument is warranted to be free from defects in workmanship and material for a period of (3) years from date of shipment.

  • Page 5: Table Of Contents

    1. Introduction ......................1   1.1 Safety Symbols ........................ 1  1.2 Glossary of Terms (As used in this manual) ..............2  1.3 Safety ..........................3  1.3.1 Service and Maintenance ................... 3  1.3.2 Test Station ......................... 4  1.3.3 Test Operator ......................5  1.3.4 Instrument Connections .....................
  • Page 6 5. Operating Instructions ..................73   5.1 Instrument Connections ....................73  5.2 Perform Tests ......................... 75  5.2.1 Load File ........................75  5.2.2 Single Step ....................... 76  5.2.3 Fail Stop ........................76  5.2.4 Results ........................77  5.3 Displayed Messages ....................... 78  5.3.1 Test Status Messages ....................

  • Page 7: Introduction

    1. Introduction 1.1 Safety Symbols Product will be marked with this symbol when it is necessary to refer to the operation and service manual in order to prevent injury or equipment damage. Product will be marked with this symbol when hazardous voltages may be present. Product will be marked with this symbol at connections that require earth grounding.

  • Page 8: Glossary Of Terms (As Used In This Manual)

    1.2 Glossary of Terms (As used in this manual) Alternating Current, AC: Current that reverses direction on a regular basis, commonly in the U.S.A. 60 per second, in other countries 50 times per second. Breakdown: The failure of insulation to effectively prevent the flow of current sometimes evidenced by arcing.

  • Page 9: Safety

    1.3 Safety • This product and its related documentation must be reviewed for familiarization with safety markings and instructions before operation. • This product is a Safety Class I instrument (provided with a protective earth terminal). • Before applying power, please verify that the instrument is set to the correct line voltage (115V or 230V) and the correct fuse is installed.

  • Page 10: Test Station

    User Modifications Unauthorized user modifications will void your warranty. EXTECH Electronics will not be responsible for any injuries sustained due to unauthorized equipment modifications or use of parts not specified by EXTECH Electronics. Instruments returned to EXTECH Electronics with unsafe modifications will be returned to their original operating condition at the customers expense.

  • Page 11: Test Operator

    or enclosure during the test. If possible, the guards or enclosure should also contain safety switches that will not allow the tester to operate unless the guards are in place or the enclosure closed. Keep the area clean and uncluttered. All test equipment and test leads not necessary for the test should be removed from the test bench and put away.

  • Page 12: Key Safety Points To Remember

    Never perform a hipot test on energized circuitry or equipment. The instrument is equipped with a safety ground connection, be sure that this is connected to a good earth ground. Always connect the return lead first, regardless of whether the item under test is a sample of insulating material, a component tested with the high voltage test lead, or a cord-connected device with a two or three prong plug.

  • Page 13: Introduction To Product Safety Testing

    1.4 Introduction to Product Safety Testing The Importance of Safety Testing Product Safety Tests are specified during the design and development stages of a product as well as in the production of the products to insure that it meets basic safety requirements. These tests are designed to verify the safety of the electrical products in that they do not jeopardize the safety of the people, domestic animals, and property of anyone who may come in contact with these products.
  • Page 14 The equipment used for this test, a dielectric-withstand tester, is often called a "hipot" (for high potential tester). The "rule of thumb" for testing is to subject the product to twice its normal operating voltage, plus 1,000 volts. However, specific products may be tested at much higher voltages than 2X operating voltages + 1,000 volts.
  • Page 15 AC testing advantages 1. AC testing is generally much more accepted by safety agencies than DC testing. The main reason for this is that most items being hipot tested will operate on AC voltages. AC hipot testing offers the advantage of stressing the insulation alternately in both polarities, which more closely simulates stresses the product will see in real use.

  • Page 16: Insulation Resistance Test

    typically be much less than what would be required in an AC tester to test the same product. DC testing disadvantages 1. Unless the item being tested has virtually no capacitance, it is necessary to raise the voltage gradually from zero to the full test voltage. The more capacitive the item the more slowly the voltage must be raised.

  • Page 17: Ground Continuity Test Or Ground Bond Test

    1.5.3 Ground Continuity Test or Ground Bond Test The Ground Bonding test determines whether the safety ground circuit of the product under test can adequately handle fault current if the product should ever become defective. A low impedance ground system is critical in ensuring that in case of a product failure, a circuit breaker on the input line will act quickly to protect the user from any serious electrical shock.
  • Page 18 Current is the current that flows from any enclosure part through a person back to ground if it were contacted by a person. The Applied Part Leakage Current or Patient Lead Leakage Current is any leakage that flows from an applied part, between applied parts or into an applied part.

  • Page 19: Getting Started

    DUT Input Power Lead *1 1151 40A DUT Power Cable *1 1148 (For 7630 without OPT. 753) Hipot Return Lead *2 1102 (For 7630 without OPT. 753) OPT.753 HV & GB Link Module TC Receptacle Adaptor Box *1...

  • Page 20: Installation

    Returning the Instrument When it is necessary to return the instrument for servicing or calibration, repackage the instrument in its original container, please include all accessories and test leads. Indicate the nature of the problem or type of service needed. Also, please mark the container "FRAGILE"...

  • Page 21: Environmental Conditions

    appropriate AC power source, the cable will connect the chassis to earth ground. The type of power cable shipped with each instrument depends on the country of destination. Return Connection The output power supplies of this instrument are referenced directly to earth CAUTION ground.

  • Page 22: Specifications And Controls

    3. Specifications and Controls 3.1 Specifications INPUT Voltage 115V / 230Vac ± 15% Frequency 50Hz / 60Hz ± 5% Current max. 2A Line Condition Power Switch Reverse polarity switch for normal condition (on / off / auto setting) Neutral Neutral switch on / off selection for single fault condition Switch Ground Ground switch on / off selection for class I single fault condition...
  • Page 23 8.40mA - 20.00mA 8.40mA - 20.00mA Resolution 0.01mA 1uA / 0.01mA 1uA / 0.01mA Accuracy (AC + DC) DC : ± 2% of reading + 3 counts Range 1 - 5 15Hz < f < 100kHz : ± 2% of reading + 3 counts 100kHz <...
  • Page 24 Range 6 DC : ± 5% of reading (> 10.0uA) MD Major MD Major Resistance MD Major Resistance is Ranges Resistance is 0.5KΩ is 1KΩ 1.5KΩ Range 1 N / A N / A N / A Resolution N / A N / A N / A Range 2...
  • Page 25 Resolution 1uA / 0.01mA 16.00mA - 8000uA - 8399uA, 5300uA - 8399uA, Range 6 30.00mA 8.40mA - 30.00mA 8.40mA - 30.00mA Resolution 0.01mA 1uA / 0.01mA 1uA / 0.01mA Accuracy (AC + DC) DC : ± 2% of reading + 3 counts Range 1 - 15Hz <...
  • Page 26 Range 3 0uA - 63uA 0.0uA - 31.5uA 0.0uA - 21.0uA Resolution 1uA 0.1uA 0.1uA Range 4 0uA - 252uA 0uA - 126uA 0uA - 84uA Resolution 1uA Range 5 0uA - 1008uA 0uA - 504uA 0uA - 336uA Resolution 1uA Range 6 0uA - 1800uA 0uA - 1800uA...
  • Page 27 Accuracy (AC) 15Hz < f < 30Hz : ± 3% of reading + 5 counts Range 1 - 5 30Hz < f <100kHz : ± 2% of reading + 3 counts 100kHz < f < 1MHz : ± 5% of reading (> 10.0mV) Range 6 15Hz <...
  • Page 28 Resolution 0.1mV 0.1mV Range 4 0mV - 126mV 0mV - 126mV 0mV - 126mV Resolution Range 5 0mV - 504mV 0mV - 504mV 0mV - 504mV Resolution Range 6 0mV - 600mV 0mV - 1200mV 0mV - 1800mV Resolution Accuracy (AC + DC) DC, 15Hz <...
  • Page 29 15Hz < f < 100kHz : ± 10% of reading + 2 counts Accuracy (AC) Range 1 - 5 15Hz < f <1MHz : ± 10% of reading + 2mV Range 6 15Hz < f < 100kHz : ±10% of reading + 2 counts MD Major MD Major Resistance is MD Major...
  • Page 30 Range 5 0mV - 504mV 0mV - 504mV 0mV - 504mV Resoluti Range 6 0mV - 900mV 0mV - 1800mV 0mV - 2700mV Resoluti Accuracy (AC + DC) DC : (± 2% of reading + 2mV) + (2% of reading + 0.2% of range) 15Hz <...
  • Page 31 Display Resolution 0.1V / step Accuracy ± (1.5% of reading + 2 counts) , 30.0 - 277.0VAC 0.5 - 999.9s for AC + DC; 1.8 - 999.9s for AC / DC only Auto range; 1.3 - 999.9s for Range Delay time AC / DC only Fixed range setting Resolution...
  • Page 32 AC Power Range 0 - 10KW High / Low Resolution Limit Setting Range 0.0 - 1000.0W / 1000 - 10000W AC Power Resolution 0.1W / 1W Display Accuracy ± (5% of reading + 9 counts) Power Factor Range 0.000 - 1.000 High / Low Resolution 0.001...
  • Page 33 *1. If the final measured signal is >range 5 then the maximum composite signal that can be measure is 28 volts peak. If the final measured signal is ≤ range 5 then the maximum composite signal that can be measure is 12 volts peak.

  • Page 34: Front Panel Controls

    3.2 Front Panel Controls 1. POWER SWITCH Rocker style power switch with international ON ( | ) and OFF (0) markings. 2. GRAPHIC LCD 320 X 240 Monographic LCD. 3. EXIT KEY Key used to escape from parameter editing and returning to prior screens. 4.
  • Page 35 The reset button must be pressed before you can proceed to the next test or change any of the set-up parameters. This switch also serves as an abort signal to stop any test in progress controlled by the 7630.

  • Page 36: Rear Panel Controls

    3.3 Rear Panel Controls 1. DUT POWER INPUT CONNECTOR This connector provides the Line and Neutral input power connections on pin 1 and 2 respectively. An external single phase unbalanced AC power supply with a single Hot or Line conductor should be connected here, to supply power to the DUT while performing the leakage test.
  • Page 37 Rear Panel Controls (Continuing) 4. GND TERMINAL This terminal is where the Ground or Earth terminal from the adapter box is connected. 5. PROBE HI / PROBE LO Probe HI terminal is an input to one side of the MD(measuring device) and will be enabled during a Touch Current test when ever Probe-HI has been selected at setup.
  • Page 38 Rear Panel Controls (Continuing) 8. INTERFACE Standard connector for interconnection to the RS-232 Bus interface. Optional IEEE 488 interface or Opt.751 Multi-function Interface Card may be substituted for the RS-232. Multi-function interface card including USB port A type, combination of RS-232, RS-485 port, and Bar Code Input with internal memory capability.
  • Page 39 Rear Panel Controls (Continuing) 14. POWER CONTROL BUS (OPTION) This is only for OPT.752 RUN Test Function. The power source must be connected to this Connector, then it can supply power to DUT by 7128. 15. SCANNER OUTPUT This is an I/O signal control bus. There are 7 signals are provided by seven normally open internal relays.

  • Page 40: Opt.753 Hv & Gb Link Module

    3.4 OPT.753 HV & GB Link Module 1. PROBE HI / PROBE LO Probe HI terminal is an input to one side of the MD(measuring device) and will be enabled during a Touch Current test when ever Probe-HI has been selected at setup. This terminal is provided for performing Enclosure leakage or Applied Part leakage tests.
  • Page 41 OPT.753 HV & GB Link Module (continuing) 5. RETURN OUTPUT JACK Connector used to attach the Return test lead, or test fixture return lead to the instrument. This connection provides the return current path for the high voltage, ground bond and continuity current.

  • Page 42: Description Of Setting

    At the Main Menu screen, press the “Perform Tests” soft key. The Perform Tests screen will now be displayed. The Perform Test screen will appear as follows: The 7630 comes pre-loaded with one default test file , and the left side of the display shows...
  • Page 43 STARTED. Remote Interlock 7630 is equipped with a featured referred to as “Remote Interlock”. Remote Interlock is a feature that utilizes a set of closed contacts to enable the instruments output. In other words, if the Interlock contacts open, the output of the instrument will be disabled. Remote Interlock could also be referred to as a remote system lockout, utilizing “Fail When Open”...

  • Page 44: Setup System Menu

    4.1 Setup System Menu From the Main Menu screen, press the “Setup System” soft key, the Setup System Menu will now be displayed. From the Setup System screen, six different Hardware and Software controls may be accessed; Time and Date, Calibration Alert, Hardware, Security, and Power On Screens. Pressing the EXIT key at any time will return you to the Main Menu.
  • Page 45 4.1.1.1 Set Date From the Time and Date setting screen, highlight the Set Date parameter by using the up and down arrow keys. The up and down arrow keys will toggle the highlighted area of the screen between the Set Date and Set Time. Within the Set Date parameter are three separate fields, month, day, and year.

  • Page 46: Calibration Alert

    4.1.2 Calibration Alert Calibration Alert is a feature that will allow the instrument to give an advanced alert that the calibration for the instrument is coming due. From the System Setup screen, press the “Calibration Alert” soft key. The Cal. Alert setting screen will now be displayed. From the Cal.

  • Page 47: Hardware

    left and right arrow keys select the field within the date, you want to edit. Using the numeric keypad enter the new number. Once you begin typing a new number, the parameter will blank and the cursor will begin blinking. This indicates that the parameter is being edited. Once a parameter is edited, it is necessary to complete the edit either by pressing the ENTER key to accept the new number or the EXIT key to escape from the edit and return to the original number.
  • Page 48 4.1.3.1 Alarm Volume From the Hardware setting screen, highlight the Alarm Volume parameter by using the up or down arrow keys. The up and down arrow keys will toggle the highlighted area of the screen between the Alarm Volume, LCD Contrast, PLC Remote and GPIB Address. Use the numeric keypad to set the Volume of the alarm in the instrument.

  • Page 49: Security

    If you attempt to start a test from the front panel Test button and the PLC remote function is turned “ON”, a pop-up message will be displayed. The pop-up message will appear as P L C r e m o t e C o n t r o l F r o n t p a n e l...
  • Page 50 4.1.4.1 Create Password From the initial Security setting screen, you may create a password by pressing the “Create Password” soft key. Press the “Create Password” soft key, the Password setting screen will now be displayed. The Password setting screen will appear as follows: You may now type in the new password using the numeric keypad, press the Enter key to accept the new password or press the exit key to escape.

  • Page 51: Power-On Screen

    Menu. 4.1.5.1 7630 Info The 7630 Information screen is the very first screen to appear when the instrument is powered up. You have the option to PAUSE the instrument at this screen after power up or CONTINUE through to the next screen after the Information screen is displayed for four seconds.
  • Page 52 Configure 7630 to go Directly to the Perform Test screen Set 7630 Info to CONTINUE, and set the Main Menu selection to OFF. Now when the instrument is powered on it will go directly to the Perform Test screen. GPIB Interface This option may be substituted for the RS232 interface.

  • Page 53: Setup Tests Menu

    From this screen, test parameters are entered and edited, and the order of the test steps are arranged and then stored to test files. The 7630 is capable of performing a 30 step sequential test from a single test file.

  • Page 54: Edit

    For a detailed description of how to set up a test sequence, please refer to section 4.4 Setting Up a Test. For a detailed description of the screens and parameters that are associated with Test selection softkeys on this screen please refer to section 4.4 Test Parameters. 4.2.2 Edit From the Setup Tests screen, use the up, down arrow keys, and scroll the highlighted area to the step you wish to edit.

  • Page 55: File

    4.2.5 File From the Setup Tests screen, press the “File” soft key. The File Setup screen will now be displayed. From the File Setup screen, five different file-handling controls may be accessed: New File, Save, Save As, Delete, and Load. The File Setup screen will appear as follows: 4.2.5.1 New File From the File Setup screen, press the “New File”...

  • Page 56: Fail Stop

    4.2.5.5 Load To load a test file, use the up, down arrow keys and scroll the highlighted area to the file you wish to load and press the “Load” soft key. 4.2.6 Fail Stop Fail Stop is a function that will stop a sequence of tests at the step if a failure occurs. If this function is turned off, the sequence of tests will continue to the end of the sequence regardless of whether or not a failure has occurred.

  • Page 57: Test Parameters

    4.3 Test Parameters From the Setup Tests screen, press the “Add” soft key. The Setup Test, Tests Selection screen will now be displayed. From this screen, you may choose what type of test to perform, Touch Current, or RUN Test. If you have OPT.754, you will also have the Run Test selection. The Setup Test, Tests Selection screen will appear as follows: Test Parameter Notes Once you begin typing a new number, the parameter will blank and the cursor will begin...

  • Page 58: Description Of Test Parameters

    4.3.1 Description of Test Parameters Voltage-HI: The maximum voltage allowable at the DUT Power Input Terminal that when exceeded triggers a failure. Voltage-LO: The minimum voltage allowable at the DUT Power Input Terminal that when not exceeded triggers a failure. Amp-HI: The maximum allowable current-flow through the DUT that when exceeded triggers a failure.

  • Page 59: Run Test (Opt.752)

    multiple parameter allows for set up of the scanner channels. The individual scanner channel parameters may be accessed using the arrow keys and the state of the scanner channel may be selected using a softkey labeled “Scanner Channel Output Select”. The three different selectable scanner states are L (scanner channel set to the return point), H (scanner set to the high voltage point) and O (OFF).
  • Page 60 Enter the new voltage via the numeric keypad and then press the ENTER key to accept the new parameter or press the EXIT key to escape from the edit. 4.3.2.2 Current Setting (Amp-HI and Amp-LO) Please use the up and down arrow keys or the ENTER key and scroll the highlighted area to the Amp-HI or Amp-LO parameter.
  • Page 61 4.3.2.4 Leakage Setting (Leakage-HI and Leakage-LO) Please use the up and down arrow keys or the ENTER key and scroll the highlighted area to the Leakage-HI or Leakage-LO parameter. The display will appear as follows: Leakage-HI Leakage-LO Enter the new Leakage current via the numeric keypad and then press the ENTER key to accept the new parameter or press the EXIT key to escape from the edit.
  • Page 62 Power-HI Power-LO Enter the new power via the numeric keypad and then press the ENTER key to accept the new parameter or press the EXIT key to escape from the edit. 4.3.2.6 Power Factor (PF-HI and PF-LO) Please use the up and down arrow keys or the ENTER key and scroll the highlighted area to the PF-HI or PF -LO parameter.

  • Page 63: Touch Current Test

    first after first step test is finished. When Continuous is OFF, whenever two link steps are at the same line status or not, it will stop output first after the step test is finished. Then it will restart to process next step. 4.3.3 Touch Current Test From the Setup Tests, Tests Selection screen, press the “Touch Current”...
  • Page 64 4.3.3.1 Leakage Setting (Leakage-HI and Leakage-LO) Please use the up and down arrow keys or the ENTER key and scroll the highlighted area to the Leakage-HI or Leakage-LO parameter. The display will appear as follows: Leakage-HI Leakage-LO Enter the new current via the numeric keypad and then press the ENTER key to accept the new parameter or press the EXIT key to escape from the edit.
  • Page 65 Enter the new time via the numeric keypad and then press the ENTER key to accept the new parameter or press the EXIT key to escape from the edit. If the dwell time is set to “0”, the instrument will operate in a continuous mode. It will stop when the DUT (Device Under Test) goes into failure or the “RESET”...
  • Page 66 Unless the REVERSE parameter is “ON”, the OFFSET setting always and indicates the value that S2 is on the A position(OFF). When the REVERSE parameter is “AUTO”, system will display the offset value of A position and save the value of B position to RAM to further calculate the leakage of A and B position then indicates the max.
  • Page 67 Pressing NEUTRAL or GROUND softkey will toggle it between its two available states ON and OFF. Pressing REVERSE softkey will toggle it between its three available states ON , OFF and AUTO. When REVERSE parameter is set to AUTO, system will measure the circuits of REVERSE is ON and OFF and display the larger value after TEST key is pressed.
  • Page 68 State 2：CLOSED、 S2：B、S3：OPEN State 3：S1：OPEN、 S2： A、 S3：OPEN State 4：S1：OPEN、 S2： B 、S3：OPEN State 5：S1：CLOSED、S2：A 、S3：CLOSED State 6：S1：CLOSED、S2：B、S3：CLOSED...
  • Page 69 State 7：S1：OPEN、S2：A 、S3：CLOSED State 8：S1：OPEN、S2：B、S3：CLOSED 4.3.3.6 Meas. Device Setting Please use the up and down arrow keys or the ENTER key and scroll the highlighted area to the Meas. Device parameter. The display will appear as follows: The Measuring Device is an impedance circuit that simulates the human body. The Measuring device is specified differently for different agencies, applications and specifications.
  • Page 70 Medical Equipment. UL544NP、UL484、UL923、UL471、 UL867、UL697 UL1563 Electric Spas, Equipment Assemblies and Associated Equipment. IEC60950、IEC61010-1 Fig A.2 (2Kohm) Information Technology. Laboratory Equipment. (For Opt. 752) External External External Frequency The Touch Current test can be configured to The selection is intended to be used for Check verify the bandwidth of the leakage current meter verification only and has no...
  • Page 71 R&C External Measuring Device The 7630 has an access panel on the back of the instrument that can be removed to access the MD external PCB. The MD external PCB may be configured for a simple resistive measuring device or a two-pole measuring device similar to MD 7. The PCB comes configured with a 1kΩ...
  • Page 72 MD Block Diagram MD7：RUN MD IEC60950、 MD5：UL544NP、UL484、UL923、 IEC61010-1 Fig A.2 (2Kohm) UL471、UL867、UL697 MD6：UL1563 MD4：UL544P MD2：IEC60990(Fig 5 U1 & MD1：IEC60990(Fig 4 U1 & U2)、 MD3：IEC60601-1 U3) , IEC60598-1 IEC60598-1、IEC60950-1、 IEC60065、 IEC61010、IEC60335-1 4.3.3.7 Probe Configuration Please use the up and down arrow keys or the ENTER key and scroll the highlighted area to the Probe parameter.
  • Page 73 Ground To Neutral Earth Leakage Current A 、 B AUTO Earth Leakage Current Note：1. If REVERSE parameter is ON or AUTO, probe will not have the Ground To Neutral and AUTO selection items. 2. It belongs to the application of Standard IEC 60335-1 Fig.2 that both the switch SH and SL are on the A position.
  • Page 74 (PH-PL)：SH and SL are on B position，Probe Switch is on A Probe-HI To Probe-LO position. 4.3.3.8 Leakage Setting Please use the up and down arrow keys or the ENTER key and scroll the highlighted area to the Leakage parameter. The display will appear as follows: The Touch Current test can be configured to meter the leakage current in RMS or Peak.
  • Page 75 4.3.3.9 Extended Meters When Extended Meters is on, it can be switched to display I-maximum or MD Voltage by press ENTER key during testing. When Extended Meters is off, the switch function is disable. I-maximum function will measure and display the max. current for each test. MD Voltage function will measure and display the voltage between two terminal of MD.

  • Page 76: Setting Up A Test

    Channel . 4.5 Setting Up a Test 1. Upon power up, 7630 will initialize with the test file that was last used before power down. New instruments come loaded with one default file, this is the file that the instrument will “Boot Up”...
  • Page 77 7. From the Setup Test, Test Selection screen, press the soft key next to the type of test you wish to add to the test sequence. The Parameter-setting screen for the type of test you have chosen will now be displayed. 8.
  • Page 78 Inserting Tests From the Setup Tests screen, scroll the highlighted area to the step in the sequence where you would like to insert a test. Press the “Add” soft key. The highlighted area will blank and the test that was originally at this step in the sequence, as well as all of following steps, will increment.

  • Page 79: Operating Instructions

    5. Operating Instructions 5.1 Instrument Connections The following diagrams (Fig.3 & Fig.4) show how to connect Safety Tester to the 7630 to the device under test. Figure 3: 7742, DUT and 1931 Series connect to 7630 with Opt.752 & Opt.753...
  • Page 80 Figure 4: 7440, DUT and 1931 Series connect to 7630 with Opt.752 & Opt.753 The PLC Remote setting of 7630 must set to OFF and safety Tester must set to ON. DUT Input Voltage Connections for OPT.752 The Power Source to the device under test (DUT) inputs must be an WARNING unbalanced single-phase supply.

  • Page 81: Perform Tests

    5.2 Perform Tests From the Main Menu screen, press the soft key “Perform Tests”. The Perform Tests Menu will now be displayed. From the Perform Tests screen, four different software controls may be accessed, Load File, Single Step (ON/OFF), Fail Stop (ON/OFF), Results.

  • Page 82: Single Step

    Using the up and down arrow keys, scroll the highlighted area to the File you would like to load and press the “Load” soft key. The file you selected will now load and the screen will revert to the Perform Tests screen. 5.2.2 Single Step Single step is a function that allows you to run one step at a time from a sequence of tests.

  • Page 83: Results

    5.2.4 Results At the end of a test sequence or single step test, you may review the measurements of each test by pressing the “Results” soft key. Results may be accessed from the end of test Summary screen or from the Perform Tests screen. The end of test Summary screen appears as follows: Using the up and down arrow keys, scroll the highlighted area to the step results you wish to review.

  • Page 84: Displayed Messages

    5.3 Displayed Messages Directly above the Metering screens is the Test status display. This portion of the display is active during the test and allows you to view the type of test being performed and status of the test step. At the end of a test, the Test status display will either inform you that the test has passed or give a direct indication of the kind of failure that occurred during the test.
  • Page 85 Volt-HI This message appears on the display if the DUT/IP voltage exceeds the Volt-HI Trip setting. Volt -LO This message appears on the display if the DUT/IP voltage drops below the Volt-LO Trip setting. Amp-HI This message appears on the display if the current exceeds the Amp-HI Trip setting Amp-LO This message appears on the display if the current drops below the Amp-LO Trip setting.

  • Page 86: Fatal Error

    Neutral-V This message appears on the display if there is voltage present on the Neutral of the DUT input receptacle. Leak-OC This message appears on the display if the voltage of MD circuit exceeds the rating voltage. 5.3.2 Fatal Error All of the buttons and keys are not active in this situation.

  • Page 87: Interface

    6. Interface 6.1 Connection of Remote I/O Two 9-pin “D” type connectors are mounted on the rear panel that provide REMOTE-INPUT-OUTPUT control and information. These connectors mate with standard 9 pin D-sub-miniature connector provided by the user. The output mates to a male (plug) connector while the input mates to a female (receptacle) connector.

  • Page 88: Signal Inputs Of Remote I/O And Programmed Test Files

    INTERLOCK functions, and allows the operator to select one of 10 pre-programmed test files. When the PLC Remote mode is on, the 7630 will respond to simple switch or relay contacts closures. A normally open momentary switch can be wired across pins 3 and 5 to allow remote operation of the TEST function.
  • Page 89 Remote Interlock 7630 is equipped with a featured referred to as “Remote Interlock”. Remote Interlock is a feature that utilizes a set of closed contacts to enable the instruments output. In other words, if the Interlock contacts open, the output of the instrument will be disabled.
  • Page 90 If the Interlock contacts are opened during a test, the pop-up message will be displayed and the test will abort. The hardware and has been configured to provide the interlock connections on pins 4 and 5 of the Remote Interface, Signal Input port. The instrument can still be used If the Interlock contacts are opened during a test, the pop-up message will be displayed and the test will abort.

  • Page 91: Scanner & Input Source I/O Signal Control Interface

    6.2 Scanner & Input Source I/O Signal Control Interface One 9-pin “D” type and one 25-pin connectors are mounted on the rear panel to be the signal control interface of SCANNER and input power .There are 7 I/O control signal for REMOTE OUTPUT and SCANNER interface, and the signal cable must be prepared by user.

  • Page 92: Bus Remote Interface Gpib / Rs-232

    RS-232 interface. Please refer to the Option section of this manual for details on the 7630 options. The RS-232 interface also uses the same command set as the GPIB interface for setting of test parameters. However there are many functions of the GPIB 488.2 interface that are not available through RS-232.

  • Page 93: Gpib Connector

    NDAC (not data accepted) indicates when a device has or has not accepted a message byte. DAV (data valid) tells when the signals on the data lines are stable (valid) and can be accepted safely by devices. Interface Management Lines: Five lines are used to manage the flow of information across the interface.

  • Page 94: Gpib Address

    This interface is optional on the 7630. Each device on the GPIB (IEEE-488) interface must have a unique address. You can set the address of the 7630 to any value between 0 and 30. The address is set to 9 when the instrument is shipped from the factory. The address can only be set from the front panel.

  • Page 95: Interface

    A GPIB read command must be sent after the command strings, to retrieve any data from a query command (?). The 7630 GPIB bus will not send any data to the controller without being queried. The RS-232 bus will automatically send any response back to the controller's input buffer.
  • Page 96 must substitute a value for the enclosed parameter. The Pipe ( | ) is used to separate different parameter options for a command. Do not include any of the above characters when sending the commands. The command and the value should be separated with a space. All commands that end with a question mark (?) are query commands and required an IEEE-488 read command to retrieve the data from the device's output buffer.
  • Page 97 Example:1,LLT,10000,0.0,125.0,0.0,99.0,2.5,CLOSED,OFF,OPEN,UL544NP,Probe-HI To Probe-LO,RMS,OFF,MANUAL,AC,OFF State :STEP number,Type,Leakage-HI,Leakage-LO,Voltage-HI,Voltage-LO,Delay,Dwell,(offset,) ◎ Neutral,Reverse,Ground,Meas.Device,Probe,Peak-RMS,Extended meter,Ranging mode,AD/DC,Continuous,Mn,Scanner STEP:EDIT:DWELL nnn.n 0.0~999.9s EDW nnn.n ◎ ◎ EDIT:DWELL? EDW? ◎ ◎ STEP:EDIT:DELAY nnn.n 0.0~999.9s EDE nnn.n ◎ ◎ EDIT:DELAY? EDE? ◎ ◎ STEP:EDIT:Leakage OFFSET nnnn 0~999.9uA ELO nnn.n ◎ EDIT:OFFSET? ELO? ◎...
  • Page 98 EM 6=IEC60990 Fig5,U3 ◎ EM 7=IEC60990 Fig5,U1 ◎ EM 8=External ◎ EM 9=Frequency Check ◎ EDIT:PLC MEM n n=1~7 EPM n ◎ ◎ 1: Recall Memory1 for AC Source; 0.8 times for 1931S 2: Recall Memory2 for AC Source; 0.85 times for 1931S 3: Recall Memory3 for AC Source;...

  • Page 99: Ieee 488.2 Common Commands

    *ESR?, *ESE, *ESE? and *STB?. Command Name Description *IDN? Identification Query EXTECH, Model Number, Serial Number, Firmware Revision *RST Reset Command Resets 7630 *TST? Self-Test Query 00H=OK 01H=TEST EEPROM ERROR *CLS Clear Status Command Clear Standard Event Status Register Clear Service Request Register *OPC...
  • Page 100 0 = Power-on load previous enable registers *PSC? Power-on Status Clear Query *ESR? Standard Event Status Register Query 0 - 255 *ESE Standard Event Status Enable value = 0 - 255 Command *ESE? Standard Event Status Enable Query 0 - 255 *STB? Read Status Byte Query Read Status Byte...

  • Page 101: Status Reporting

    *PSC? Queries the power-on status clear setting. Returns 0 or 1. *ESR? Queries the Standard Event register. Returns the decimal value of the binary-weighted sum of bits. *ESE Standard Event enable register controls which bits will be logically ORed together to generate the Event Summary bit 5 (ESB) within the Status Byte.
  • Page 102 registers and if you wish to clear the register you must set it to a value of 0. Like the event register, the enable register is represented as a decimal number that equals the binary-weighted sum of all bits. The enable register will clear to value of 0 at power up unless the *PSC 0 command had been executed before power-off.

  • Page 103: Calibration

    Press and hold the calibration key on the rear panel with a pen, pencil, or small screwdriver while powering ON the 7630. The 7630 enters calibration mode after the power on sequence is complete. The Initial Calibration screen will appear as follows: The Calibration screen is separated into three sections.

  • Page 104: Calibration Points

    automatically scroll to the next calibration point. To manually select calibration points, use the up and down arrows to scroll the highlighted area to the desired calibration point. The load/meter screen and prompt screens will automatically update for the calibration point selected. 7.1.2 Calibration points Each calibration point requires different loads, standards and process.
  • Page 105 Set DUT I/P 120-277VAC. Connect a 40Amp load at DUT output in series with current meter. When the load is connected, press TEST to activate the calibration. Read the measurement from your standard and enter it using the numeric keypad. You may now store the new calibration number by pressing the ENTER key or escape by pressing the EXIT key or the RESET button.
  • Page 106 Set DUT I/P voltage to 220VAC and connect a 5 ohm load. Connect power meter in series with the DUT. When the load is connected, press TEST to activate the calibration. Read the measurement from your standard and enter it using the numeric keypad. You may now store the new calibration number by pressing the ENTER key or escape by pressing the EXIT key or the RESET button.
  • Page 107 Connect 18 VAC to the DUT I/P input. Connect a standard current meter to the DUT outputs from L to G. When the power supply and meter are connected, press TEST to activate the calibration. Read the measurement from your standard and enter it using the numeric keypad. You may now store the new calibration number by pressing the ENTER key or escape by pressing the EXIT key or the RESET button.
  • Page 108 Connect 30.0VDC and a voltmeter to Probe-HI + and Probe-LO -. When the power supply and meter are connected, press TEST to activate the calibration. Read the measurement from your standard and enter it using the numeric keypad. You may now store the new calibration number by pressing the ENTER key or escape by pressing the EXIT key or the RESET button.
  • Page 109 Connect 2.0VDC and a voltmeter to Probe-HI + and Probe-LO -. When the power supply and meter are connected, press TEST to activate the calibration. Read the measurement from your standard and enter it using the numeric keypad. You may now store the new calibration number by pressing the ENTER key or escape by pressing the EXIT key or the RESET button.
  • Page 110 Connect 0.125VDC and a voltmeter to Probe-HI + and Probe-LO -. When the power supply and meter are connected, press TEST to activate the calibration. Read the measurement from your standard and enter it using the numeric keypad. You may now store the new calibration number by pressing the ENTER key or escape by pressing the EXIT key or the RESET button.
  • Page 111 Connect 18.0VAC supply and a voltmeter to Probe-HI + and Probe-LO -. When the power supply and meter are connected, press TEST to activate the calibration. Read the measurement from your standard and enter it using the numeric keypad. You may now store the new calibration number by pressing the ENTER key or escape by pressing the EXIT key or the RESET button.
  • Page 112 Connect 5.0 VAC supply and a voltmeter to Probe-HI + and Probe-LO -. When the power supply and meter are connected, press TEST to activate the calibration. Read the measurement from your standard and enter it using the numeric keypad. You may now store the new calibration number by pressing the ENTER key or escape by pressing the EXIT key or the RESET button.
  • Page 113 Connect1.25VAC supply and a voltmeter to Probe-HI + and Probe-LO -. When the power supply and meter are connected, press TEST to activate the calibration. Read the measurement from your standard and enter it using the numeric keypad. You may now store the new calibration number by pressing the ENTER key or escape by pressing the EXIT key or the RESET button.
  • Page 114 Connect0.32VAC supply and a voltmeter to Probe-HI + and Probe-LO -. When the power supply and meter are connected, press TEST to activate the calibration. Read the measurement from your standard and enter it using the numeric keypad. You may now store the new calibration number by pressing the ENTER key or escape by pressing the EXIT key or the RESET button.
  • Page 115 Connect0.08VAC supply and a voltmeter to Probe-HI + and Probe-LO -. When the power supply and meter are connected, press TEST to activate the calibration. Read the measurement from your standard and enter it using the numeric keypad. You may now store the new calibration number by pressing the ENTER key or escape by pressing the EXIT key or the RESET button.
  • Page 116 Connect0.02VAC supply and a voltmeter to Probe-HI + and Probe-LO -. When the power supply and meter are connected, press TEST to activate the calibration. Read the measurement from your standard and enter it using the numeric keypad. You may now store the new calibration number by pressing the ENTER key or escape by pressing the EXIT key or the RESET button.
  • Page 117 Connect 2.0VDC in series with a current meter to Probe-HI + and Probe-LO -. When the power supply and meter are connected, press TEST to activate the calibration. Read the measurement from your standard and enter it using the numeric keypad. You may now store the new calibration number by pressing the ENTER key or escape by pressing the EXIT key or the RESET button.
  • Page 118 Connect 2.0VDC in series with a current meter to Probe-HI + and Probe-LO -. When the power supply and meter are connected, press TEST to activate the calibration. Read the measurement from your standard and enter it using the numeric keypad. You may now store the new calibration number by pressing the ENTER key or escape by pressing the EXIT key or the RESET button.
  • Page 119 Connect 2.0VDC in series with a current meter to Probe-HI + and Probe-LO -. When the power supply and meter are connected, press TEST to activate the calibration. Read the measurement from your standard and enter it using the numeric keypad. You may now store the new calibration number by pressing the ENTER key or escape by pressing the EXIT key or the RESET button.
  • Page 120 Connect 2.0VDC in series with a current meter to Probe-HI + and Probe-LO -. When the power supply and meter are connected, press TEST to activate the calibration. Read the measurement from your standard and enter it using the numeric keypad. You may now store the new calibration number by pressing the ENTER key or escape by pressing the EXIT key or the RESET button.

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