1-4 Return to Section Topics 2100-900-01 Rev. D / September 2011
Section 1: General Information Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual
Safety information
WARNING To avoid possible electric shock, personal injury, or death, please read and
follow these guidelines carefully:
• Follow the guidelines in this manual and DO NOT use the meter if the case is
damaged. Check the meter case and terminals, and make sure all the devices
are in the proper positions.
• Do not apply excessive voltage to the multimeter. Apply voltage within the
rated range only.
• Use caution when measuring voltages above 30V RMS, 42V peak, or 60V DC.
Higher voltages pose an electric shock hazard.
• When using the probes, always keep your fingers behind the finger guards.
• Always connect the common test leads (black) before connecting the live test
leads (red), and disconnect the live test leads (red) before disconnecting the
common test leads (black). This will reduce the chance of an electric shock.
• Disconnect circuit power and discharge all high-voltage capacitors before
testing resistance, continuity, diodes, or capacitance.
• Repairs must only be performed by qualified service personnel.
• When replacing fuses, use only the same type and same rating as specified.
Make sure the unit is disconnected from AC power and any external signals
first.
• Do not try to operate the meter if it is damaged. Disconnect the power from the
equipment and consult your local service representative. Return the product
to a Keithley Instruments service facility if necessary.
Safety symbols and terms
The following symbols and terms may be found on the Model 2100 or used in this manual.
The symbol indicates that the user should refer to the operating instructions located in the
manual.
The symbol shows that high voltage may be present on the terminal(s). Use standard safety
precautions to avoid personal contact with these voltages.
Inspection for damage
The Model 2100 was carefully inspected electrically and mechanically before shipment. After
unpacking all items from the shipping carton, check for any obvious signs of physical damage that
may have occurred during transit. Report any damage to the shipping agent immediately. Save the
original packing carton for possible future shipment.
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