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Introduction
Digi-Sense Industrial Digital Multimeters (model 20250-53;
TRMS model 20250-54) are a must-have on your electrical
tool belt—especially for those who need a rugged and
reliable meter. These versatile and simple-to-use units safely
measure the full range of common parameters including voltage,
current, resistance, capacitance, frequency, temperature, and
more. All this technology is packaged in a double-insulated
housing that meets IP67 requirements. The instruments are fully
tested and calibrated to NIST-traceable standards. Careful use of
the meter will provide years of reliable service.
Safety
Safety Warnings
The following safety information must be
observed to insure maximum personal safety
during the operation at this meter:
• Measurements beyond the maximum selected range
must not be attempted.
• Extreme care
must be taken when measuring above 50 V,
especially on live bus-bars.
• To measure voltage, the instrument
must not be switched
to a current or resistance range, or to the diode check or
buzzer position.
• Circuits
must be de-energized and isolated before
carrying out resistance tests.
• The rotary function switch must only be turned
after
removing test connections.
• All external voltages
must be disconnected from the
instrument before removing the battery.
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