Related Manuals for Vanguard Instruments Company IRM-5000
Summary of Contents for Vanguard Instruments Company IRM-5000
- Page 1 MODEL IRM-5000 USER’S MANUAL INSULATION-RESISTANCE METER USER’S MANUAL Vanguard Instruments Company, Inc. 1824 East Elma Court Ontario, California 91764 September 1999...
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Page 2: Safety Summary
(and also cause a display failure) while the test circuit remains energized. When this happens, it is necessary to allow the test circuit enough time to discharge and the IRM-5000 to be turned off before personnel touch any connection. -
Page 3: Table Of Contents
MODEL IRM-5000 USER’S MANUAL TABLE OF CONTENTS SAFET SUMMARY 1.0 FUNCTIONAL DESCRIPTION 1.1 Test Voltage 1.2 High-Voltage Warning Display and Audible Alarm 1.3 Capacitor Discharge 1.4 Voltmeter 1.5 Keypad 1.6 LCD Display 1.7 Built-in Thermal Printer 1.8 Test Report Storage Capability 1.9 Computer Interface... -
Page 4: List Of Tables
Table 3-6. Print Test-report Directory Procedure Table 3-7. Recalling a Test report Table 3-8. Printing a Test Report Table 3-9. Printing a Graphic Report Table 3-10. Delete a Test Report from Memory Table 3-11. Putting the IRM-5000 under Computer Control... -
Page 5: Functional Description
1.1 Test Voltage The IRM-5000 can run tests with preset voltages (500, 1000, 2500, and 5000 V dc), or can be run with user-selected voltages ranging from 50 V dc to 5000 V dc with a resolution of ±1 V dc resolution. -
Page 6: Table 1-1. Irm-5000 Specifications
MODEL IRM-5000 USER’S MANUAL Table 1-1. IRM-5000 Specifications TYPE Insulation Resistance Meter, Y2K Compliant SIZE 18 L by 15 W by 7 H (inches) WEIGHT 18 pounds RESISTANCE RANGE +5% 1 M to 1 T ohm @ 5 kV +5% 1 M to 100 G ohm @ 500 V... -
Page 7: Built-In Thermal Printer
An RS-232C cable is also furnished with the unit. The IRM-5000 requires a 9-pin, D-type, male-to-female connector. The IRM-5000 RS-232C port connector pin outs are shown in Table 1-2 below: Table 1-2. -
Page 8: Test Terminals
Three 5-foot long-voltage test probes are furnished with each IRM-5000. WARNING Do not touch test probes of the IRM-5000 during testing. Failure to heed this warning can cause a lethal shock, resulting in death, or may cause a serious injury. - Page 9 MODEL IRM-5000 USER’S MANUAL Figure 1-1. IRM-5000 Controls and Indicators...
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Page 10: Table 1-4 Irm-5000 Controls And Displays
MODEL IRM-5000 USER’S MANUAL Table 1-4 IRM-5000 Controls and Displays Index no PANEL MARKING FUNCTIONAL DESCRIPTION TEMPERATURE PROBE Connector, 4-pin (Display, no panel marking) CHARGER Battery charging indicator 120 Vac, 6A, 50/60Hz Power plug and fuse holder Fuse: 250Vac, 1A Fast-Blow... -
Page 11: Replacement Parts
MODEL IRM-5000 USER’S MANUAL 1.14 Replacement Parts When performing operator maintenance (e.g., replacing fuses or batteries), it is extremely important that these components be replaced only with identically functioning parts. A list of part numbers and manufacturers of authorized replacement parts appears below. Failure to heed... -
Page 12: Test Mode Summary
(steps) will produce decreasingly lower resistance values. A typical Step Voltage test duration is 5 minutes. The IRM-5000 will sequentially take resistance readings of the DUT at one-fifth increments of the final test voltage at 1-minute duration each. -
Page 13: Operating Procedures
MODEL IRM-5000 USER’S MANUAL 3.0 OPERATING PROCEDURES 3.1 Insulation-Resistance Test Procedure Using Standard Voltages This test measures insulation resistance at selected voltages. Since the insulation resistance is continuously monitored during this test, users can plot resistance value vs time or current vs time. -
Page 14: Insulation-Resistance Test-In-Progress Display
MODEL IRM-5000 USER’S MANUAL 3.2 Insulation-Resistance Test In Progress Display A typical Insulation Resistance Test-in-Progress display is shown in Figure 3-1. Bat:------- Time: 09:39 Resistance: 516 M Current: 4.87 uA TEST VOLTAGE: 2505V Figure 3-1. Typical Insulation Resistance Display Figure 3-1 example display readout data are interpreted as follows: 1. - Page 15 MODEL IRM-5000 USER’S MANUAL 3.3 Insulation-Resistance Test Final Display A typical Insulation Resistance result display is shown on Figure 3-2. Res=515M 4.87 uA 2505V 0.00uF 10.00 TERMINAL VTG: Figure 3-2. Typical Insulation Resistance Result Display Figure 3-2 example display readout data are interpreted as follows: 1.
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Page 16: Typical Resistance Test Printout
MODEL IRM-5000 USER’S MANUAL 3.4 Typical Resistance Test Printout. A typical Insulation Resistance printout is shown in Figure 3-3 (below). Figure 3-3. Typical Resistance Printout Figure 3-3 example display of readout data are interpreted as follows: 1. Time and Date of test are shown on top of test report. -
Page 17: Typical Resistance Plot And Current Plot
MODEL IRM-5000 USER’S MANUAL 3.5 Typical Resistance Plot and Current Plot. A typical Resistance vs time and Current vs time plot for an Insulation Resistance test is shown in Figures 3-4 and 3-5. Figure 3-4. Resistance vs Time Plot Figure.3-5. Current vs Time Plot... -
Page 18: Polarization Index (Pi) Test Using Standard Voltages
MODEL IRM-5000 USER’S MANUAL 3.6 Polarization Index (PI) Test Using Standard Voltage The Polarization Index test is derived from the ratio of insulation resistance value at 10 minutes divided by the insulation value at 1 minute. Users can use standard voltages: 500 V, 1000 V, 2500 V, 5000 V, or any selectable voltage from 50V to 5000V. -
Page 19: Pi Test-In-Progress Display
MODEL IRM-5000 USER’S MANUAL 3.7 PI Test In Progress Display A typical PI Test-in-Progress LCD screen display is shown in Figure 3-4 (below). Bat:------- Time: 09:39 Resistance: 2.055 G Current: 0.488 nA TEST VOLTAGE: 1005V Figure 3-6. Typical PI Test-in-Progress Display Figure 3-6 example display readout data are interpreted as follows: 1. -
Page 20: Polarization Index Test Final Display
MODEL IRM-5000 USER’S MANUAL 3.8 Polarization Index Test Final Display A typical Polarization Index Test result display is shown on Figure 3-7. Res=3.012 G PI=1.47 1005V 0.00uF 10.00 TERMINAL VTG: Figure 3-7. Typical Polarization Index Result Display Figure 3-7 example display of readout data are interpreted as follows: 1. -
Page 21: Polarization Index (Pi) Test Printout
MODEL IRM-5000 USER’S MANUAL 3.9 Polarization Index (PI) Test Print Out A typical Polarization Index Test printout is shown in Figure 3-8 (below). Figure 3-8. Typical Polarization Index (PI) Test Printout Figure 3-8 example display readout data are interpreted as follows: 1. -
Page 22: Pi Resistance And Current Plot
MODEL IRM-5000 USER’S MANUAL 3.10 PI Resistance and Current Plot Typical Resistance vs Time and Current vs Time plots for a PI test are shown in Figures.3-9 and 3-10. NOTE The one-minute marker is highlighted on both the resistance and the current plots. -
Page 23: Step Voltage (Sv) Test
MODEL IRM-5000 USER’S MANUAL 3.11 Step Voltage (SV) Test For the Step Voltage Test, the IRM-5000 measures the Insulation Resistance at 5 different voltages. The default test duration for each test voltage is 1 minute or a total test time of 5 minutes. -
Page 24: Step Voltage Test-In-Progress Display
MODEL IRM-5000 USER’S MANUAL 3.12 Step Voltage Test-In-Progress Display A typical SV Test-in-Progress LCD screen display is shown on Figure 3-11 (below). Bat:------- Time: 09:39 Resistance: 98.9 M Current: 0.243 nA TEST VOLTAGE: 500V Figure 3-11. Typical Step-Voltage Test-in-Progress Display Figure 3-7 example display readout data are interpreted as follows: 1. -
Page 25: Step Voltage Test Result Display (Screen #1)
MODEL IRM-5000 USER’S MANUAL 3.13 Step Voltage Test Result Display (Screen #1) A typical Step Voltage Test result display is shown on Figure 3-12. 98.9M @ 01:00, 500V 2509V 0.00F 5:00 Figure 3-12. Typical Step Voltage Test Result Display Figure 3-12 example display readout data are interpreted as follows: 1. -
Page 26: Step Voltage Test Printout
MODEL IRM-5000 USER’S MANUAL 3.14 Step Voltage Test Print Out A typical Step Voltage Test printout is shown in Figure 3-13 (below). Figure 3-13. Typical Step-Voltage Test Printout Figure 3-13 example display readout data are interpreted as follows: 1. Time and Date of test are shown at top of test report. -
Page 27: Step Voltage Test Resistance And Current Plots
MODEL IRM-5000 USER’S MANUAL 3.15 Step Voltage Test Resistance and Current Plots Resistance and current plot for the SV test (previous page) is shown in Figures 3-14 and 3-15. Fig 3-14 Resistance vs Time Plot of a SV test NOTE Resistance value does not vary significantly for a good insulation reading (i.e., straight line). -
Page 28: Dielectric Discharge (Dd) Test
3.16 Dielectric Discharge (DD) Test Dielectric Discharge Test measures the dielectric absorption of a tested material. A typical DD test takes 30 minutes. The IRM-5000 performs this test automatically. Follow the steps below to start a DD test. Table 3-4. Dielectric Discharge Test Procedure... -
Page 29: Dielectric Discharge Test Result
MODEL IRM-5000 USER’S MANUAL 3.17 Dielectric Discharge Test Result Display A typical Dielectric Discharge Test result display is shown on Figure 3-12. Res=1.99M DD=4.7 100V 3.08uF 10:00 Figure 3-16. Typical Dielectric Discharge Test Result Display Figure 3-16 example display readout data are interpreted as follows: 1. -
Page 30: Dielectric Discharge Test Printout
MODEL IRM-5000 USER’S MANUAL 3.18 Dielectric Discharge Test Printout A typical Dielectric Discharge Test printout is shown in Figure 3-17 (below). Figure 3-17. Typical Dielectric Discharge Test Printout Figure 3-17 example display readout data are interpreted as follows: 1. Time and Date of test are shown at top of test report. -
Page 31: Dielectric Discharge Voltage Vs Time And Current Vs Time
MODEL IRM-5000 USER’S MANUAL 3.19 Dielectric Discharge Voltage vs Time and Current vs Time Plots Resistance and current plot for the DD test (previous page) is shown in Figures 3-18 and 3-19. Fig 3-18 Resistance vs Time Plot of a DD test... -
Page 32: Save Test Report In Memory
3.20 Save Test Report In Memory The IRM-5000 is capable of saving up to 90 test reports in Flash EEPROM. This feature allows the user to recall test reports generated in the field, which reports can be printed in an office or down-loaded to an IBM PC. -
Page 33: Print Test Report Directory
MODEL IRM-5000 USER’S MANUAL 3.21 Print Test Report Directory To print the Test Report Directory of the IRM-5000, follow the steps listed in Table 3-6 below: Table 3-6. Print Test-report Directory Procedure STEP DESCRIPTION ACTION RESULTING DISPLAY Select Utilities menu Select key “2”... -
Page 34: Recall Test Report From Memory
MODEL IRM-5000 USER’S MANUAL 3.22 Recall Test Report From Memory To recall a specific test report from memory, follow the steps below: Test report can then be printed. Table 3-7. Recalling a Test Report STEP DESCRIPTION ACTION RESULTING DISPLAY Select Utilities menu Select key “2”... -
Page 35: Print Tabulated Test Report
MODEL IRM-5000 USER’S MANUAL 3.23 Print Tabulated Test Report To print a test report, follow the steps in Table 3-8. Table 3-8 Printing a Test Report STEP DESCRIPTION ACTION RESULTING DISPLAY Select Utilities menu Select key “2” 1. PRINT 2. SAVE/RES 3. -
Page 36: Print Graphic Test Report
MODEL IRM-5000 USER’S MANUAL 3.24 Print Graphic Test Report Follow the steps in table 3-9 below to print a graphic report Table 3-9. Printing a Graphic Report STEP DESCRIPTION ACTION RESULTING DISPLAY Select Utilities menu Select key “2” 1. PRINT 2. SAVE/RES 3. -
Page 37: Delete A Test Report From Memory
MODEL IRM-5000 USER’S MANUAL 3.25 Delete a Test Report From Memory To delete a specific test report, follow the steps in Table 3-10 below: Table 3-10. Delete a Test Report from Memory STEP DESCRIPTION ACTION RESULTING DISPLAY Select Utilities menu Select key “2”... -
Page 38: Computer Interface
MODEL IRM-5000 USER’S MANUAL 3.26 Computer Interface A built-in RS-232C port allows the IRM-5000 to be connected to an IBM PC. The RS-232C port is controlled by the main CPU board and is optically isolated from the high -voltage generator board. -
Page 39: Appendix A Polarization Index Ratio
MODEL IRM-5000 USER’S MANUAL Appendix A Polarization Index Ratio The Polarization Index (PI) number is derived from the ratio of the resistance value at 10 minutes to the resistance value reading at 1 minute. Since the resistance readings are taken very closely in time, the temperature is virtually the same at both resistance measurement times. -
Page 40: Appendix B Dielectric Discharge Ratio
The Dielectric Discharge test incorporated in the IRM-5000 has a standard test voltage of 500 V and a standard test time of 30 minutes. During this time some charge migrates into the dielectric material under test, as described above. -
Page 41: Appendix C Guard Terminal Application
Surface leakage currents, which may flow along the surface of the exposed wires, will flow from the Positive HV Test lead to the Guard lead. These currents are not measured by the IRM-5000. The cable itself will also have some inherent leakage current that will flow from the Positive HV lead, through the cable, and out the Negative HV lead. - Page 42 MODEL IRM-5000 USER’S MANUAL Vanguard Instruments Company, Inc. 1824 East Elma Court Ontario, California 91764 Tel: 909-937-6850 Fax: 909-937-6851...
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