Tektronix DMM4020 Technical Reference Manual page 4

DMM4020
Technical Reference
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Cleaning ............................................................................................................. 2-4
Storing and Shipping the Meter ......................................................................... 2-4
Power Considerations ........................................................................................ 2-4
Selecting the Line Voltage ............................................................................ 2-4
Replacing the Fuses ....................................................................................... 2-5
Line-Power Fuse ....................................................................................... 2-5
Current-Input Fuses ................................................................................... 2-6
If the Meter Does Not Turn On .......................................................................... 2-7
Display Tests ...................................................................................................... 2-7
Performance Verification and Calibration ......................................... 3-1
Introduction ........................................................................................................ 3-3
Required Equipment .......................................................................................... 3-3
Direct Voltage Verification................................................................................ 3-4
Alternating Voltage Verification ....................................................................... 3-5
4-Wire Ohms Verification ................................................................................. 3-6
2-Wire Ohms Verification ................................................................................. 3-7
Direct Current Verification ................................................................................ 3-8
Alternate Current Verification ........................................................................... 3-11
Frequency Verification ...................................................................................... 3-12
Adjustment (Calibration) ................................................................................... 3-12
Equipment for Calibration ............................................................................. 3-12
Adjustment Process ....................................................................................... 3-12
Front Panel Adjustments ............................................................................... 3-12
RS-232 Calibration (Manual) ........................................................................ 3-17
Calibration Points ...................................................................................... 3-18
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