Datasheet

08 | Keysight | Handheld Tools For Electronic, Electrical and Industrial Process Testing – Brochure
Industrial and electronics HHDMMs
Recommended for Electronics troubleshooting Industrial
Series model no.
Display
U1250 series U1270 Series U1280 Series
U1251B U1252B U1253B U1271A U1272A U1273A U1273AX U1281A U1282A
Display resolution
(counts)
50,000 30,000 60,000
Dual display
Yes Yes Yes
Analog bar-graph
Yes Yes Yes
Back-light
OLED wdisplay
Yes
OLED wdisplay
Yes
Basic features
AC bandwidth
30 kHz 100 kHz 100 kHz 30 kHz 100 kHz
True RMS
AC AC + DC AC + DC AC + DC
Auto/manual ranging
Yes Yes Yes
Measurements
Voltage AC/DC: range
50 mV to 1000 V 300 mV to
1000 V
30 mV to 1000 V 60 mV to 1000 V
Current AC/DC: range
500 µA to 10 µA 300 µA to 10 A 600 μA to 10 A
Resistance: range
500 Ω to 500 MΩ 300 Ω to
100 MΩ
30 Ω to 300 MΩ 600 Ω to
60 MΩ
60 Ω to
600 MΩ
Frequency: range
99.999 Hz to 999.99 kHz 99.999 Hz to 9.9999 MHz
Capacitance: range
10 nF to 10 mF
Temperature: type,
range
K: –200 to
1372 °C
K: –200 to 1372 °C
J: –210 to 1200 °C
K: –200 to
1372 °C
K: –200 to 1372 °C
J: –210 to 1200 °C
–200 to 1372 °C
Continuity with beeper
Yes Yes Yes
Diode test
Yes Yes Yes
Data management
Min/max recording
Yes Yes Yes
Display hold
Yes Yes Yes
Peak hold
Yes Yes Yes
Manual
datalogging
Yes Yes Yes
Null
Yes Yes Yes
Connectivity
IR-USB / Bluetooth IR-USB / Bluetooth IR-USB / Bluetooth
% scale of 4–20 mA
Yes Yes
Operating temperature
–20 to 55 °C
0 to 80% RH
–40 to 55 °C
0 to 80% RH
–20 to 55 °C
0 to 80% RH
–20 to 55 °C
0 to 80% RH
Altitude
2000 m 3000 m 3000 m
Measurement category
CAT III 1000 V / CAT IV 600 V
Battery type (included)
9 V 8.4 V (rechargeable) 4 x 1.5 V AAA 4 x 1.5 V AAA
(lithium)
4 x 1.5 V AA
Battery life
72 hours 36 hours 8 hours 300 hours 30-60 hours 800 hours
Advanced functions
20 MHz Frequency counter,
square wave output
Low pass lter Harmonic
ratio, Vsense,
Z
LOW
, low
pass lter,
dual and
differential
temperature
(T1-T2)
Smart ohm to remove residual voltage,
Z
LOW
low impedance mode to reduce stray
voltage
Represents key specifications/features