U1251B Agilent Technologies Test Equipment, U1251B Datasheet

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U1251B

Manufacturer Part Number
U1251B
Description
Digital Multimeter, Handheld, Orange
Manufacturer
Agilent Technologies Test Equipment
Datasheet
1.U1251B.pdf (13 pages)

Specifications of U1251B

Accuracy
DC 0.03%
Color, Body
Orange
Current, Range
10 A
Display Resolution
50,000 (Both)
Display Type
Dual
Frequency Range
1 MHz
Includes
Standard Test Leads (with 19-mm and 4-mm tips), Alligator Clips, Battery Charger (for U1252B), Certificate of Calibration, Test Report, Quick Start Guide
Interface
IR to USB
Protection Class
CAT III 1000 V and CAT IV 600 V
Voltage, Range, Ac
1000 V
The Agilent U1250 Series handheld digital
multimeters (DMMs) exceed your
expectations by delivering powerful features
and performance that meet your toughest
requirements and applications. The series’
latest multimeters, the U1251B, U1252B
and U1253B come in vivid orange cases,
offering capabilities and functions
equivalent to the U1250A Series.
[1] U1253A/U1253B model
[2] U1252A/U1252B/U1253A/U1253B models
Key features
Superior contrast from organic LED
(OLED) display
50,000-count dual display
Up to 0.025% basic DCV accuracy
True-RMS AC and AC+DC
measurements
K-type and J-type
measurements
Manual and automated (interval)
data logging; internally to DMM and
externally to PC
CAT III 1000 V and CAT IV 600 V
safety protection
Built-in 20-MHz frequency counter
Built-in programmable square-wave
generator
2
1
2
temperature
2
2
Data Sheet
Test more – more safely
Agilent U1250 Series Handheld
Digital Multimeters
Do more with just one
instrument
The basic model, U1251A/U1251B,
expands your capabilities beyond typical
DMM measurements to include data
logging. The U1252A/U1252B starts with
the same foundation, and then adds a 20-
MHz frequency counter and programmable
square-wave generator — so you’d be able
to perform more tests conveniently with
one tool. What’s more: both models come
bundled with a complete set of accessories
to equip you right from the start at no extra
cost.
Offering the same functionality as the
U1252A/U1252B, the U1253A/U1253B is
the world’s first OLED handheld DMM.
You won’t have to squint to be sure you’re
reading it right: On the go or on the bench,
you’ll get crystal-clear viewing indoors, even
in dark, off-angle situations.
Figure 1: Automate recording of measurements with bundled
GUI data-logging software.
Find problems quickly
Troubleshooting can be tricky, especially
when you’re dealing with elusive problems.
With the U1250 Series’data logging
capability, you can ensure that every
reading gets recorded manually or at
intervals you specify. Better yet:
you can have virtually unlimited data
logging saves when you connect any of
the U1250 Series DMM to a PC with the
optional IR-to-USB cable.
In addition, the U1250 Series lets you
achieve greater confidence in your
measurements with accurate true-RMS AC
measurements, low DCV error rate of up
to 0.025% and high-resolution display of
50,000 counts.
Uncompromising ruggedness
and safety
The U1250 Series DMMs are housed in
robust overmold enclosures, rated at CAT III
1000 V and CAT IV 600 V and operate over a
wide temperature range of –20 °C to +55 °C.
Each DMM also include a 30 kA high energy
fuse to further protect you against violent
fuse failures during high-current measure-
ments. Built tough and certified to stringent
industrial standards, the U1250 DMM is what
you need to face the demands of everyday
tasks.

U1251B Summary of contents

Page 1

... The series’ latest multimeters, the U1251B, U1252B and U1253B come in vivid orange cases, offering capabilities and functions equivalent to the U1250A Series. Key features ...

Page 2

Take a closer look OLED display with approximately 160° viewing angle, and high contrast ratio of 2000:1 for crystal-clear viewing 1 SHIFT key and one-stop function keys for easy access Broad range of measurement functions, including temperature and capacitance Built-in ...

Page 3

... Current can be measured continuously. An additional 0.5% needs to be added to the specified accuracy if the signal measured is in the range of 10 A~20 A for 30 seconds maximum. After measuring a current of > leave the meter to cool down for twice the measuring time used before application of low current measurement. [8] Maximum open voltage: <+ 4.2V. U1251A/U1251B AC SPECIFICATIONS FUNCTION RANGE RESOLUTION 50 ...

Page 4

FUNCTION RANGE RESOLUTION 500.00 µA [4] 5000.0 µA 50.000 mA AC CURRENT [2] 440.00 mA 5.0000 A 10.000 A [5] U1252A/U1252B/U1253A/U1253B AC SPECIFICATIONS FUNCTION RANGE RESOLUTION 50.000 mV 0.001 mV 500.00 mV 0.01 mV 1000.0 mV 0.1 mV TRUE RMS ...

Page 5

... AC CURRENT 440.00 mA 0.01 mA 5.0000 A 0.0001 A 10.000 A 0.001 A [6] U1251A/U1251B/U1252A/U1252B TEMPERATURE SPECIFICATIONS THERMOCOUPLE RANGE TYPE ºC K –200 ~ 1372 ºC J –210 ~ 1200 ºC (for U1252A/U1252B) U1253A/U1253B TEMPERATURE SPECIFICATIONS THERMOCOUPLE RANGE TYPE ºC – ...

Page 6

... for 30 seconds maximum. After measuring a current of >10 A, leave the meter to cool down for twice the measuring time used before application of low current measurement. [7] Input current < 3 Arms. [8] For non-square wave signals, add 5 counts. U1251A/U1251B FREQUENCY SENSITIVITY DURING VOLTAGE MEASUREMENT INPUT RANGE (Maximum input for specified accuracy = 10 x Range or 1000 V) 50 ...

Page 7

FREQUENCY SENSITIVITY DURING CURRENT MEASUREMENT INPUT RANGE 500.00 µA 5000.0 µA 50.000 mA 440.00 mA 5.0000 A 10.000 A PEAK HOLD SIGNAL WIDTH Single event > Repetitive > 250 µs DUTY CYCLE AND PULSE WIDTH [1] FUNCTION DUTY ...

Page 8

MEASURING RATE FUNCTION TIMES/SECOND ACV 7 ACV + dB 7 DCV /nS Diode 14 Capacitance 4 (< 100 µF) DCI 7 ACI Temperature 6 Frequency 1 ...

Page 9

... Certified to IEC/EN 61326: 2002, CISPR 11, and equivalents for Group 1, Class A COMMON MODE REJECTION RATIO (CMRR) U1251A/U1251B/U1252A/U1252B: > DC, 50/60 Hz ± 0. unbalanced) U1253A/U1253B: >100 dB at DC, 50/60 Hz ± 0. unbalanced) NORMAL MODE REJECTION RATIO (NMRR) U1251A/U1251B/U1252A/U1252B: > DC, 50/60 Hz ± 0.1% U1253A/U1253B: > DC, 50/60 Hz ± 0.1% TEMPERATURE COEFFICIENT 0.15 * (specified accuracy)/ C (from ...

Page 10

... Test leads: CAT III 1000 V, CAT IV 600 • Test probes: CAT III 1000 • Medium-sized alligator clips: CAT III 600 • 4-mm banana plugs: CAT II 600 U1253B U1251B U1252B • • – – – ...

Page 11

U1163A SMT grabbers • One pair of SMT grabbers (red and black). Recommended for use with Agilent standard test leads. • Rated CAT II 300 MEASURING ACCESSORIES (NON-TEMPERATURE) U1168A Standard test lead kit Includes two test leads ...

Page 12

MEASURING ACCESSORIES (TEMPERATURE) U1186A K-type thermocouple and adapter • T/C adapter J/K-type • T/C bead J-type: –20 °C to 200 °C CABLE U1173A IR-to-USB cable • For remote control and data logging to PC • Max. baud rate: 19,200 bits ...

Page 13

Agilent Email Updates www.agilent.com/find/emailupdates Get the latest information on the products and applications you select. www.lxistandard.org LXI is the LAN-based successor to GPIB, providing faster, more efficient connectivity. Agilent is a founding member of the LXI consortium. Agilent Channel Partners ...