Agilent Technologies U1401A User manual

U1401A Quick Start Guide
Agilent U1401A Handheld
Multi-Function Calibrator/Meter
Quick Start Guide
The following items are included with your instrument:
✔Carrying case and protective holster
✔Rechargeable battery pack (1.2 V NiMH AA ×8)
✔Power cord and AC power adapter
✔Silicone test leads, alligator clips, and a yellow test lead for mA
simulation
✔Certificate of calibration
✔Printed Quick Start Guide
If anything is missing or damaged, please contact the nearest Agilent
Sales Office.
NOTE
Your multimeter is capable of remote data logging. To use this feature, you will need an IR-USB
cable (U5481A, purchased separately) and the Agilent GUI Data Logger Software (downloadable
from www.agilent.com/find/hhTechLib).
WARNING
Ensure that the terminal connections are correct for that particular measurement
selection before starting any measurement. To avoid damage to the device, do not
exceed the rated input limit.
CAUTION
Degradation of some product specifications can occur in the presence of ambient
electromagnetic (EM) fields and noise that are coupled to the powerline or I/O cables
of the instrument. The instrument will self-recover and operate to all specifications
when the source of ambient EM field and noise are removed or when the instrument
is protected from the ambient EM field or when the instrument cabling is shielded
from the ambient EM noise.
Agilent Technologies
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U1401A Quick Start Guide
Performing Voltage Measurements
Performing Current Measurements
Percentage scale of DC mA measurement
With the rotary switch at mA, another option selectable with the key is the
percentage scale of DC mA measurement.
Frequency measurement
During AC/DC voltage or AC/DC current measurement, you can measure the signal frequency
by pressing at any time.
Measuring AC voltage
1Set the rotary switch to V
or mV. Press to select .
2Connect the red (+) and black
(–) test leads to the INPUT
terminals.
3Probe the test points and read
the display.
4Press to display dual
measurements.
Measuring DC voltage
1Set the rotary switch to V
or mV. Press to select .
2Connect the red (+) and black
(–) test leads to the INPUT
terminals.
3Probe the test points and read
the display.
4Press to display dual
measurements.
Measuring AC current
1Set the rotary switch to
mA. Press to select
.
2Connect the red (+) and black
(–) test leads to the INPUT
terminals.
3Probe the test points in series
with the circuit and read the
display.
Measuring DC current
1Set the rotary switch to
mA. Press to select
.
2Connect the red (+) and black
(–) test leads to the INPUT
terminals.
3Probe the test points in series
with the circuit and read the
display.
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U1401A Quick Start Guide
Performing Resistance Measurement and Continuity Test
Performing Temperature Measurements
CAUTION
Disconnect circuit power and discharge all high-voltage capacitors before measuring
resistance to prevent possible damage to the instrument or the device under test.
WARNING
• Before measuring the temperature of a circuit or device, disconnect its power.
• The bead type thermocouple probe is suitable for measuring temperature from
–40 °C to 204 °C in PTFE compatible environments. The probes may emit toxic
gas above this temperature range.
1Set the rotary switch to .
2Connect the red (+) and black
(–) test leads to the INPUT
terminals.
3Probe the resistor (or shunt)
leads and read the display.
4To perform continuity test,
press to toggle the
audible continuity function on
or off.
For continuity test, the instrument will
beep if the resistance is less than the
values indicated below:
Measurement range
Resistance
threshold
500.00 Ω10 Ω
5.0000 kΩ100 Ω
50.000 kΩ1 kΩ
500.00 kΩ10 kΩ
5.0000 MΩ100 kΩ
50.000 MΩ1 MΩ
1Set the slide switch to the M
position to disable the output.
2Set the rotary switch to mV.
3Press and hold for more
than 1 second.
4Plug the thermocouple probe
(with adapter) into the INPUT
terminals.
5Touch the surface to be
measured with the
thermocouple probe and read
the display.
Best practices:
•Do not bend the thermocouple
leads at sharp angles.
Repeated bending may break
the leads.
•Do not immerse the
thermocouple probe in any
liquid.
•Clean the surface to be
measured and make sure that
the probe is securely touching
the surface.
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U1401A Quick Start Guide
Constant Voltage and Current Outputs
Autoscan and autoramp outputs
The voltage and current outputs can also be generated in predefined steps or ramp. Refer to
the User's and Service Guide for the detailed procedures.
Square Wave Output
NOTE
The U1401A can generate and measure signals simultaneously. While the mode is
enabled, pressing disables the U1401A output by placing it in the standby
mode ( ). Pressing OUTPUT again toggles the output on ( ).
Constant voltage output
1Set the rotary switch to any
one of the positions.
2Press . The
annunciator appears.
3Press to cycle through
±1.5 V, ±15 V, ±1.5 V,
±15 V, ±1.5 V, and
±15 V output modes.
4Select ±1.5 V or ±15 V.
5Press to output the
signal.
Constant current output
1Set the rotary switch to any
one of the positions.
2Press . The
annunciator appears.
3Press to cycle through
±25 mA, ±25 mA, and
±25 mA output modes.
4Select ±25 mA.
5Press to output the
signal.
1Set the rotary switch to .
2Press . The
annunciator appears.
3Press to cycle through
the adjustment modes for
frequency ( ), duty cycle
( ), pulse width ( ), and
amplitude ( ). Select a
parameter to adjust.
4Press or to adjust the
parameter value.
5Press to output the
square wave signal.
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U1401A Quick Start Guide
Other Functions and Features
Input/Output Terminals and Overload Protection
The output terminals are protected with DC 30 V overload protection. The overload
protection limits of the input terminals are shown in the table below.
Action Procedure
Selects AC, DC, or AC+DC measurement Press
Toggles peak hold mode on and off Press and hold for > 1 s
Freezes the measured value With data hold mode enabled, press . Press and hold
for > 1 s to exit.
Enters or exits the refresh hold mode With refresh hold mode enabled, press
Enters or exits the dynamic recording mode Press and hold for > 1 s
Offsets the measured value Press
Selects the measurement range Press
Turns on autorange Press and hold for > 1 s
Turns on dual display Press
Turns on the frequency measurement function Press
Enables the shifted functions of the keypad Press
Toggles the backlight on or off Press and hold for > 1 s
Selects output mode and range for voltage and current output With rotary switch at or , and with mode
enabled, press
Selects parameter adjustments for square wave output With rotary switch at , and with mode
enabled, press
Selects a digit or the polarity to be adjusted With mode enabled, press or
Adjusts a digit or the polarity With mode enabled, press or
Toggles the output state on and off With mode enabled, press
Functions Overload protection
AC/DC voltage measurement 250 Vrms
Resistance measurement and continuity test
Temperature measurement
AC/DC current measurement 250 V/630 mA, fast-acting fuse
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U1401A Quick Start Guide
Charging the battery
A new rechargeable battery comes in a discharged condition and must
be charged before use (refer to the U1401A User's and Service Guide
for charging instructions). Upon initial use (or after a prolonged
storage period) the rechargeable battery may require three to four
charge/discharge cycles before achieving maximum capacity. To
discharge, simply run the multimeter using the rechargeable battery’s
power until it shuts down or until the low battery warning appears.
In some instances, the multimeter may indicate that the charging is
complete after ten minutes or so when charging a new rechargeable
battery. This is a normal phenomenon with rechargeable batteries.
Remove the rechargeable battery from the device, re- insert it and
repeat the charging procedure.
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Tilt Stand
Safety Information
The instrument can be raised to a standing position by means
of a tilt stand.
This instrument is safety and EMC certified in
compliance with:
• IEC 61010-1:2001/EN61010-1:2001 (2nd Edition)
• Canada: CAN/CSA-C22.2 No. 61010-1-04
• USA: ANSI/UL 61010-1:2004
• IEC61326-2-1:2005/EN61326-2-1:2006
• Canada: ICES-001:2004
• Australia/New Zealand: AS/NZS CISPR11:2004
Measurement Category II 150 V, Pollution Degree 2.
Use with standard or compatible test probes.
Safety Notices
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
CAT II
150 V Category II 150 V overvoltage protection
Double insulation
Earth ground
Caution, risk of danger
Caution, risk of electric shock
For further safety information details, refer to the U1401A Handheld Multi- Function
Calibrator/Meter User’s and Service Guide.
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Agilent Technologies
Second Edition, May 4, 2012
© Agilent Technologies, Inc., 2008–2012
U1401-90011
Printed in Malaysia
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