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Summary of Contents for Amptec Research 620UK-B
- Page 1 AMPTEC RESEARCH MODEL 620UK-B OPERATION AND MAINTENANCE MANUAL 13231 Rooster Springs Rd. Austin, TX 78737 amptec.com T: (512) 858-4045 E: info@amptec.com...
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Page 2: Table Of Contents
620UK-B Operation and Maintenance Manual – Rev J – January 2020 TABLE OF CONTENTS SECTION A: RECEIVING AND INITIAL INSPECTION A-1 Introduction to AMPTEC 620UK-B Bonding Milliohmmeter p. 3 A-2 Unpacking and Inspection p. 3 A-3 Setup and Preparation for Use p. -
Page 3: Section A: Receiving And Initial Inspection
Class 1, Division 1, Groups A, B, C, and D locations for ambient temperatures from -20° C to 50° C (T3 zones). The AMPTEC 620UK-B meter is also MIL. STD. 810 MTD. 511 approved for use in explosive and volatile atmospheres. -
Page 4: Setup And Preparation For Use
For a more detailed instructional information on how to use the 620UK-B meter, see section D-4 on page 11. The 620UK-B meter may be used in any area where the environment does not exceed the specifications listed in section B on page 5. When possible, avoid exposing the meter to extremes of temperature, which will affect accuracy and shorten battery life. -
Page 5: Section B: 620Uk-B Specifications
620UK-B Operation and Maintenance Manual – Rev J – January 2020 SECTION B: 620UK-B SPECIFICATIONS B-1 Specifications for AMPTEC 620UK-B Bonding Milliohmmeter Resistance Range/Resolution: RANGE 200 mΩ 2 Ω NOMINAL CURRENT 100 mA 100 mA RESOLUTION 0.01 mΩ 0.1 mΩ... -
Page 6: Section C: 620Uk-B Compatible Accessory Items
620UK-B Operation and Maintenance Manual – Rev J – January 2020 SECTION C: 620UK-B COMPATIBLE ACCESSORY ITEMS C-1 Available Accessories and Test Leads* 620UK-B Product Packages: 620UK-B NSN PKG: Includes meter, case (630-100), and probes (630-406S) 620UK-B Meter Accessories: 630-100: Padded F.O.D. resistant case 620UK-B Test Leads and Probes: 600-PG: 5’... -
Page 7: Section D: Operation, Function, And Use
D-2 Front Panel The below sub-sections, D-2.1 through D-2.7, provide information on the features, design, and uses of the 620UK-B meter’s front panel. The below photo also shows the details of the 620UK-B’s front panel. D-2.1 Test Leads and Chassis Ground Connections The AMPTEC 620UK-B meter test lead connection uses a 4 terminal-in connector on its front panel, as seen in the diagram on the next page. -
Page 8: D-2.2 Connections And 4 Wire Kelvin Information
The 620UK-B meter measures DC resistance with a 4-Wire Kelvin, or 4 terminal ohms, technique. Fundamentally, the 4-Wire Kelvin resistance method avoids measurement errors induced from the resistance of the test lead/probes and the contact resistance of the lead/probes to the device under test. -
Page 9: D-2.3 Main Power Switch
Under the rubber boot, there is a rubber o-ring for added weather resistance. The 620UK-B meter is set to automatically turn itself off after 5 minutes of no use in order to preserve battery life. Contact AMPTEC if you would like to have this feature deactivated. - Page 10 620UK-B Operation and Maintenance Manual – Rev J – January 2020 This autolock feature within the meter works by taking 16 resistance measurements in the positive polarity and averaging them. Another 16 resistance measurements are then taken in the negative polarity and averaged. The two averaged values from the positive and negative polarities are then averaged together to produce the final autolocked measurement, which is the reading displayed while the backlight is on.
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Page 11: 620Uk-B Padded Carrying Case Photo And Information
D-4 Detailed Use Description The below provides a detailed description on the best way to use the 620UK-B meter for bond measurements. You may also view the diagram on the following page for a visual example. - Page 12 620UK-B Operation and Maintenance Manual – Rev J – January 2020 test (no paint or coating), and the metal chassis of your test item. Pointed probes work best on aluminum parts as this type of material often has a thin coating (aluminum oxide) that is a non-conductor.
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Page 13: Section E: Maintenance, Repair, And Calibration
SECTION E: MAINTENANCE, REPAIR, AND CALIBRATION E-1 General Maintenance, Repair, and Calibration Information The AMPTEC 620UK-B meter was designed with the intent of using high quality, strong, and reliable components both internally and externally. As a result, the unit is extremely reliable and rarely requires repair. -
Page 14: Block Diagram And Circuit Description
The 1.9999 Ω range outputs a constant 100 mA DC level of test current. On a 1 Ω resistor, the 620UK-B 100mA output should get a 100mV drop (0.10V/0.10A). For DVM scaling on the 2 Ω range, voltage drop is amplified using a x10 (for range scaling), hence a 10 mV drop becomes 100mV. -
Page 15: E-6.1 Current Source Pcb Diagnostic Test Routine
E-7 620UK-B Calibration Procedure The 620UK-B’s rear panel calibration sticker must be removed to access the two adjustment potentiometers located on the DVM PCB. Please note that if the tamper- proof calibration sticker is removed, this voids the product’s calibration and warranty. -
Page 16: E-7.1 Recommended Calibration Standards
E-7.1 Recommended Calibration Standards We recommend using our 630-304 4-Wire banana jack test lead set to calibrate the 620UK-B meter. If you are interested in purchasing a set of these leads, please contact AMPTEC. If you need to purchase resistance standards, we recommend using a reputable manufacturer and insuring that all standards are N.I.S.T. -
Page 17: Battery Compartment Design And Description
620UK-B Operation and Maintenance Manual – Rev J – January 2020 Note that the below diagram is of the 620LK meter. However, the 620UK-B Removing the PCB from the 620UK-B meter is identical in function and design, and as such the diagram is accurate. -
Page 18: Section F: Safety Approvals And Classifications
620UK-B Operation and Maintenance Manual – Rev J – January 2020 SECTION F: SAFETY APPROVALS AND CLASSIFICATIONS F-1 UL-913 Intrinsically Safe Certification The AMPTEC 620UK-B meter is independently UL- 913 approved as an intrinsically safe apparatus for use in Class 1, 2, 3, and 4, Division 1, Groups A, B, C, and D locations from temperatures -20°... -
Page 19: Section G: Revision History And Manual Notes
620UK-B Operation and Maintenance Manual – Rev J – January 2020 SECTION G: REVISION HISTORY AND MANUAL NOTES G-1 Manual Revision History The below table details changes made over time to this manual. Revision Name Date Description Revision history table added, manual notes added, Rev.
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