U1281A Datasheet, PDF (8/18 Pages) Keysight Technologies – U1280 Series Handheld Digital Multimeters

08 | Keysight | U1280 Series Handheld Digital Multimeters - Data Sheet
General specifications
Display
Power consumption
Battery type
Battery life
Connectivity
Fuse
Operating environment
Storage compliance
Safety compliance
Measurement category
Electromagnetic compatibility (EMC)
Ingression protection rating
Temperature coefficient
Common mode rejection ratio (CMRR)
Normal mode rejection ratio (NMRR)
Dimensions (H x W x D)
Weight
Warranty
Calibration cycle
5-digit liquid crystal display (LCD) with maximum reading of 66,000-count
Automatic polarity indication.
250 mVA / 330 mVA with backlight
4x 1.5 V AA alkaline battery (ANSI/NEDA 15A or IEC LR6), or;
4x 1.5 V AA zinc chloride battery (ANSI/NEDA 15D or IEC R6), or; 4x 1.5 V AA Lithium battery
(ANSI/NEDA 15-LF or IEC FR6)
800 hours typical based on new alkaline batteries for DC voltage measurement
Infrared (IR) port, connect with:
–– IR-USB cable, or;
–– U1117A IR-to-Bluetooth adapter (Bluetooth Class 1), or;
–– U1177A IR-to-Bluetooth adapter (Bluetooth Class 2)
10 x 35 mm, 440 mA / 1000 V, 10 kA minimum fast-acting fuse
10 x 38 mm, 11 A / 1000 V, 20 kA minimum fast-acting fuse
Full accuracy from –20 °C to 55 °C; and up to 80 % R.H. for temperature up to 30 °C decreasing
linearly to 50 % R.H. at 55 °C
Pollution Degree II
Altitude up to 3000 meters
–40 °C to 70 °C, 0 to 80 % R. H. (with battery removed)
EN/IEC 61010-2-030: 2010
EN/IEC 61010-1: 2010
CAT III 1000 V / CAT IV 600 V
Susceptibility and Emissions: commercial limits per EN/IEC 61326-1
IP-67, protected against dust and the effect of immersion between 15 cm and 1 m
0.05 x (specified accuracy) / °C (from –20 °C to 18 °C or 28 °C to 55 °C)
> 120 dB at DC, 50/60 Hz ± 0.1 % (1 kΩ unbalanced)
> 60 dB at 50/60 Hz ± 0.1 %
218 x 96 x 59 mm
701 grams (with batteries)
Three years for main unit
Three months for standard shipped accessories
One year, or;
Two years (with 1.5 times of one year specification)
Specification assumptions
–– Accuracy is given as ± (% of reading + counts of least significant digit) at 23 °C ± 5 °C,
with relative humidity less than 80 % R.H.
–– Accuracy is specified for 1-year after calibration, at operating temperature of room
temperature. Multiply 1.5 times of the accuracy for 2-year after calibration.
Example ± (1.5 X % of reading + 1.5 X counts of least significant digit).
–– AC and AC µA / mA / A specifications are AC coupled.
–– True RMS measurement is valid from 5 % of range to 100 % of range.
–– For non-sinusoidal waveforms, add (0.1 % of reading + 0.3 % of full scale) typically
–– The maximum circuit limitation of peak signal is 300 % typically for voltage and current
except 250 % and 150 % typically for range 600 V and 1000 V respectively.
–– The crest factor is according to the maximum circuit limitation of peak signal
–– Specification is based on 5 times/second of data refresh rate
–– CMRR and NMRR are based on 5 times/second of data refresh rate