Amptec Research 620UK-B Manuale di installazione, funzionamento e manutenzione - Pagina 7
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Stampa la pagina620UK-B Operation and Maintenance Manual – Rev J – January 2020
SECTION D: OPERATION, FUNCTION, AND USE
D-1 General Use
The AMPTEC 620UK-B is a milliohmmeter designed to safely measure low level DC
resistance from 0.01 to 1999.9 mΩ. The 620UK-B meter uses internal solid state
voltage reference(s) that permit the product to be used immediately after the unit has
been turned on (temperature range limits permitting). If you flip the carrying case lid
completely open, and connect the carrying case strap to the unit's front buckle, the unit
can be carried hands free.
To use the 620UK-B meter to make a resistance measurement, first connect the desired
measurement leads to the Trident connector on the front panel of the meter. Place the
measurement leads across the unknown resistance value that needs to be measured.
At this point, the 620UK-B meter should start updating the LCD screen once an
electrical connection has been made. After approximately 3 seconds, the meter will
produce a beeping sound, and the backlight will turn on to illuminate the LCD screen. If
the measurement leads are removed from the component that was being measured, the
meter will hold the resistance reading on the screen. The 620UK-B meter will resume
measuring resistance once the measurement leads sense a new applied resistance
value, or by pressing the "Auto Measure Reset" button.
If you have any other general use questions, please contact AMPTEC.
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.
The unit's front panel chassis ground panel jack (which also accepts an external banana
jack) is wired to its all metal case, metal front panel, rear panel, battery compartment,
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