U1241C Datasheet, PDF (3/15 Pages) Keysight Technologies – U1240 Series Handheld Digital Multimeters

03 | Keysight | U1240 Series Handheld Digital Multimeters - Data Sheet
Test Confidently and Efficiently
Harmonics ratio
Regular maintenance to keep the production line running seamlessly is the ultimate goal
for industrial test engineers. In real life there is the presence of harmonics due to many
electronic devices powered by switched mode current pulses that travels back into the
power source. If these unwanted harmonics become too large, they have unwanted side
effects: overheating that shortens the lifespan of motors, generators and transformers;
premature tripping of circuit breakers; and blown fuses. Hence an accurate, dependable
U1240C Series DMM helps to ensure early detection of harmonics in the AC supply. One
of the fastest ways to detect and gauge the percentage of distortion due to harmonics is
by measuring the harmonic ratio of the incoming AC voltage.
The U1240C Series offers a fast one-button check with its harmonic ratio function. The
ratio percentage helps you to decide if further analysis of the power source is required
with an oscilloscope or a spectrum analyzer.
Low impedance mode
Stray voltages are usually encountered in non-energized electrical wiring adjacent to
powered wires due to capacitive or inductive coupling between these wires. The low
impedance mode helps to reduce false readings by dissipating these stray voltages thus
improves safety and measurement efficiency during voltage measurement.
Vsense for non-contact voltage detection
The U1240C Series handheld DMM have Vsense — a unique method of non-contact
voltage detection that safeguards users from exposure to hot or live wires while making
measurements in dangerous working environments. Upon detection of voltage, it
produces a unique combination of beeping alert and blinking LED light to alert users.
This feature is especially useful to make measurements more efficiently in dark or noisy
environment.