Agilent Technologies U1211A User manual

Agilent Technologies
Agilent U1211A, U1212A,
and U1213A Clamp Meter
Quick Start Guide
The following items are included with your clamp meter:
✔Standard test leads with 19 mm probes and 4 mm probes
✔Soft carrying case
✔Quick Start Guide
✔Certificate of Calibration
If any item is missing or damaged, contact your nearest Agilent Sales
Office.
For more detailed information, please refer to the Agilent U1211A, U1212A,
and U1213A Clamp Meter User’s and Service Guide on Agilent Website:
www.agilent.com/find/handheld-tools
U1211A U1212A U1213A

Quick Start Guide
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

Quick Start Guide
Functions and Features
Rotary switch
Function buttons
[1] Duty cycle %function is only available for U1213A.
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
•Press Hold/Max Min > 1 second
•Press Hold/Max Min again
Toggle measurement type Press Shift/Peak
Toggle peak hold test Press Shift/Peak > 1 second
Enable frequency or duty cycle[1] on
secondary display
Press Hz/
Turn on backlight Press Hz/ > 1 second
Offset measured value Press DNull
Change measuring range manually Press Range/Auto
Turn on auto range Press Range/Auto > 1 second

Quick Start Guide
Annunciator Display
No. Annunciator Status
1 AUTO Indicates auto ranging
2 Zeroing mode
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
15 kHz Frequency measurement unit
16 Secondary display (for frequency measurement and
temperature unit)
17 Analog bar-graph with scale indicator
18 Auto power off enabled
19 Negative polarity
20 Primary display

Quick Start Guide
Input Terminals
[1] DC current measurement is only available for U1212A and
U1213A.
[2] 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[1]
AC voltage
VCOM
CAT III 1000 Vrms
CAT IV 600 Vrms
DC voltage
Resistance
COM 1000 Vrms for
short circuit < 0.3 A
Capacitance
Diode
Temperature[2]
Common terminal for
all measurements
Voltage, resistance, diode,
capacitance, and
temperature[2] measurements

Quick Start Guide
Performing Current Measurement
WARNING
Ensure the test leads are disconnected from the input
terminals when measuring current with the clamp meter.
Conductor
Press
Read
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.

Quick Start Guide
CAUTIONCAUTION
Ensure that the clamp meter measures only one conductor
at a time. Measuring multiple conductors may cause
inaccuracy in measurement reading due to vector sum of
currents flowing in the conductors.
Correct Incorrect
Current
flow
Current
flow

Quick Start Guide
Performing Voltage Measurement
Press
Connect
1Set the rotary switch to ~V.
2Connect the red and black test leads to input terminals V (red) and
COM (black) respectively.
3Press Shift to switch between AC voltage, DC voltage, and AC+DC
voltage (for U1213A only) measurements.
4Probe the test points and read the display. Press Hz to view the
frequency indication on the secondary display.
Probe
and read

Quick Start Guide
Performing Resistance Measurement and
Continuity Test
Connect
Probe
and read
Audible
continuity
1Set the rotary switch to Ω.
2Connect the red and black test leads to input terminals Ω (red) and
COM (black) respectively.
3Probe the test points (by shunting the resistor) and read the display.
4To perform continuity test, press Shift once. The buzzer will sound
when the resistance is below 10.0 Ω.

Quick Start Guide
Performing Diode Measurement
Connect
Probe
and read
1Set the rotary switch to .
2Connect the red and black test leads to input terminals (red) and
COM (black) respectively.
3Probe the test points and read the display.