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Fast Shipping Brand New Keysight U1241B Handheld Multimeter Low Interference Circuit For Sensitive Electronic Circuit Tests
10K counts DMM with switch/relay counter for glitch detection in installation and maintenance troubleshooting.
HIGHLIGHTS
• Better viewability with dual-intensity backlighting
• Detect glitches swiftly with built-in switch/relay counter
• Log measurements easily to PC or mobile device (requires U1179A IR connectivity bracket)
• CAT III 1000 V and CAT IV 600 V Overvoltage Protection
What's included:
• Standard 3-Year Warranty (90 days for un-serialized accessories)
• Test Lead Set
• Quick Start Guide
• 4 x 1.5 V Batteries
• Certificate of Calibration
Key Features
• 10,000-count display
• Up to 0.09% basic DCV accuracy
• Longer battery life up to 400 hours 1
• Certified to IP 67 for water and dust protection 1
• Tested to withstand a 3-meter (10-ft) drop 1 – CAT III 1000 V / CAT IV 600 V overvoltage protection
• Special features:
o Harmonic ratio measurement to quickly identify the presence of harmonics in AC signals
o ZLOW, low impedance mode 2 to eliminate false readings caused by stray voltages
o Vsense 2 for non-contact voltage detection
o T1 – T2 differential temperature 2 measurement
o Built-in flashlight 3
Harmonics ratio
In real life, harmonics are present in AC power due to the fact that many electronic devices are powered
by switched-mode current pulses which travel back into the power source. If these unwanted harmonics
become too large, the undesirable side effects include overheating that shortens the lifespan of motors,
generators, and transformers, premature tripping of circuit breakers, and blown fuses. 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. You can perform this very easily on the U1242B/C handheld DMM, with
just a button press. The percentage helps you to decide if further analysis of the power source is required
with an oscilloscope or a spectrum analyzer.
Low impedance mode (Zlow)
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 improving safety and measurement efficiency during
voltage measurement.
Vsense for non-contact voltage detection
Vsense is 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 high AC
voltage, it produces a unique combination of beeping audio and blinking LED lights to alert users.
Dual and differential temperature
In the installation, maintenance, and troubleshooting of heating, ventilation, and air-conditioning (HVAC)
systems, temperature measurements are essential. As an example, to ensure boiler temperature adheres
to safety requirements, you would need to measure both boiler and air temperature simultaneously to
achieve accurate real-time readings. With a faulty air conditioning system, viewing the temperature
difference between the warm return air and cool air supply helps to reveal the cooling behavior of the
evaporator with respect to time. Now with the convenience of the U1242B/C DMM, you need only one
instrument to efficiently get dual and differential measurements.
Built-in flashlight with ergonomics in mind
Designed for handheld users working in poorly lit environments, the U1240C Series fits comfortably in
your palm, allowing you to single-handedly illuminate the test area with its easily activated built-in LED
flashlight. With ergonomics in mind, you can swiftly make more measurements without straining your
hands even over a longer period of time.
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