Specifications

Specifi cations of the U1230 Series Digital Multimeters Continued
For complete specifi cations, please refer to data sheet 5990-7550EN
How to?
Select a Handheld DMM that is Right for You
http://cp.literature.agilent.com/litweb/pdf/5990-5197EN.pdf
Think Safety When Selecting a Handheld Multimeter
http://cp.literature.agilent.com/litweb/pdf/5990-4578EN.pdf
Web link
www.agilent.com/find/U1230DMM
U1231A U1232A U1233A
General
Operating temperature –10 to 55 °C, 0% to 80% RH –10 to 55 °C, 0% to 80% RH –10 to 55 °C, 0% to 80% RH
Battery (included) 4 x 1.5 V Alkaline battery 4 x 1.5 V Alkaline battery 4 x 1.5 V Alkaline battery
Battery life 500 hours 500 hours 500 hours
Warranty 3 years 3 years 3 years
Dimensions (H x W x D) 169 × 86 × 52 mm 169 × 86 × 52 mm 169 × 86 × 52 mm
Installation and maintenance of machinery, electrical systems and more often
require numerous quick checks and fi xes, sometimes under hazardous conditions.
Whether you need to quickly inspect power supplies for harmonics, detect glitches
in switch systems or monitor differential temperature, the U1240 Series of handheld
digital multimeters (DMMs) is up to the task. With all you need in one portable
instrument, you can travel light and fi nish the day’s work with ease. Plus, you’ll be
glad to know it’s easy to own one, even with the DMM’s rich capabilities.
• Low micro-amp and high Mega-ohm ranges
• Switch/Relay counter for glitch detection
• Harmonic ratio measurement in AC supplies
• Dual and differential temperature measurements
• Data logging to instrument on the go
• Bluetooth® wireless connectivity
(optional U1177A Infrared (IR)-to-Bluetooth Adapter required)
Features
U1240 Series - Handheld Digital Multimeters
Applications with U1240 Series Handheld Digital Multimeters
Harmonic ratio measurement for maintenance of facilities, motors, generators
and transformers
Any periodic waveform other than an
absolutely pure sine wave has some
amount of harmonic content. If these
unwanted multiples of the fundamental
frequency 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.
When harmonics are present, the shape of an original sinusoidal
waveform becomes distorted, producing a non-zero harmonic ratio.
Fundamental
Resultant waveform
3
rd
Harmonic 5
th
Harmonic
8