Keysight U1211A Manuale utente
Keysight U1211A,
U1212A, and U1213A
Clamp Meter
Quick Start
Guide
Contacting Keysight
www.keysight.com/find/assist
(worldwide contact information for
repair and service)
Safety and EMC Information
The U1211A, U1212A, and U1213A
is safety-certified in compliance
with EN/IEC 61010-1, ANSI/UL
61010-1, and CAN/CSA-C22.2
No.61010-1-04.
EMC is designed in compliance
with IEC61326-1/EN61326-1,
CISPR 11/EN 55011 Group 1 class
A, ICES-001, AS/NZS CISPR11.
Safety Notices
CAUTION
A CAUTION notice denotes a
hazard. It calls attention to an
operating procedure, practice, or
the like that, if not correctly
performed or adhered to, could
result in damage to the product or
loss of important data. Do not
proceed beyond a CAUTION notice
until the indicated conditions are
fully understood and met.
WARNING
A WARNING notice denotes a
hazard. It calls attention to an
operating procedure, practice, or
the like that, if not correctly
performed or adhered to, could
result in personal injury or
death. Do not proceed beyond a
WARNING notice until the
indicated conditions are fully
understood and met.
Safety symbols
Direct current (DC)
Alternating current (AC)
Earth (ground) terminal
Application around and
removal from HAZARDOUS
LIVE conductors is
permitted
Equipment protected
throughout by double
insulation or reinforced
insulation
Caution, risk of electric
shock
Caution, risk of danger
(refer to this manual for
specific Warning or Caution
information)
Category III 1000 V
overvoltage protection
Category IV 600 V
overvoltage protection
CAT III
1000 V
CAT IV
600 V
2 Keysight U1211A, U1212A, and U1213A Quick Start Guide
For further safety information details, refer to the
Keysight U1211A, U1212A, and U1213A Clamp Meter User’s Guide.
ENGLISH
Keysight U1211A, U1212A, and U1213A Quick Start Guide 3
ENGLISH
The following items are included with your clamp
meter:
4Standard test leads with 4 mm probes
4Soft carrying case
4Quick Start Guide
4Certificate of Calibration
If any item is missing or damaged, contact your
nearest Keysight Sales Office.
For more detailed information, please refer to the
Keysight U1211A, U1212A, and U1213A Clamp
Meter User’s and Service Guide on Keysight
Website: www.keysight.com/find/handheld-tools
U1211A U1212A U1213A
4 Keysight U1211A, U1212A, and U1213A Quick Start Guide
ENGLISH
Knowing Your Clamp Meter
Clamp jaw
Handle
Hand guard
Annunciator
Jaw
markings
Rotary
switch
Function
buttons
Hold/
Max Min
button
Red input
terminal
Black input
terminal
Front
panel
Keysight U1211A, U1212A, and U1213A Quick Start Guide 5
ENGLISH
Functions and Features
Rotary switch
Function buttons
Measurements
and power off
functions
Actions Steps
Freeze measured value Press Hold/Max Min
– Record maximum, minimum, and
calculate true average
– Toggle between maximum, average,
and minimum
–PressHold/Max Min > 1 second
–PressHold/Max Min again
Toggle measurement type Press Shift/Peak
Toggle peak hold test Press Shift/Peak > 1 second
Enable frequency or duty cycle[a] on
secondary display
Press Hz/
Turn on backlight Press Hz/ > 1 second
Offset measured value Press ΔNull
6 Keysight U1211A, U1212A, and U1213A Quick Start Guide
ENGLISH
[a] Duty cycle % function is only available for U1213A.
Change measuring range manually Press Range/Auto
Turn on auto range Press Range/Auto > 1 second
Actions Steps
Keysight U1211A, U1212A, and U1213A Quick Start Guide 7
ENGLISH
Annunciator Display
No. Annunciator Status
1 AUTO Indicates auto ranging
2Zeroingmode
3 DH Data hold
4 MAX AVG MIN Dynamic recording mode on present reading.
MAX: maximum reading, MIN: minimum reading,
AVG: average reading
5 Direct current or voltage
6 Alternating current or voltage
7 Capacitor measurement unit
8 Audible continuity indicator
9 A Current measurement unit
10 Low battery indicator when battery voltage drops
below 6.0 V
11 V Voltage measurement unit
12 M k ΩResistance measurement unit and range
13 Diode measurement indicator
14 % Duty cycle (for U1213A only)
8 Keysight U1211A, U1212A, and U1213A Quick Start Guide
ENGLISH
15 kHz Frequency measurement unit
16 Secondary display (for frequency and duty cycle
measurement and temperature unit)
17 Analog bar-graph with scale indicator
18 Auto power off enabled
19 Negative polarity
20 Primary display
No. Annunciator Status
Keysight U1211A, U1212A, and U1213A Quick Start Guide 9
ENGLISH
Input Terminals
[a] DC current measurement is only available for U1212A and U1213A.
[b] Temperature function is only available for U1212A and U1213A.
WARNING
Ensure the terminal connections are correct for a
particular measurement before making any
measurement. To avoid damage to the device, do not
exceed the input limit.
Measurement
functions
Input terminals Input limits
AC current Clamp jaw 1000 Arms
DC current[a]
AC voltage VCOM
CAT III 1000 Vrms
CAT IV 600 VrmsDC voltage
Resistance
COM
1000 Vrms for
short circuit <
0.3 A
Capacitance
Diode
Temperature[b]
Common terminal for
all measurements
Voltage, resistance, diode,
capacitance, and
temperature[b] measurements
10 Keysight U1211A, U1212A, and U1213A Quick Start Guide
ENGLISH
Performing Current Measurement
1Set the rotary switch to ~A.
2Press Shift to switch between AC current, DC
current (for U1212A and U1213A only), and
AC+DC current (for U1213A only)
measurements.
3Press the handle to open the clamp jaw.
4Clamp around a conductor and ensure that
the conductor fits the markings on the jaw.
5Read the display. Press Hz to view the
frequency indication on the secondary
display.
WARNING
Ensure the test leads are disconnected from the input
terminals when measuring current with the clamp
meter.
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