Agilent Technologies U1241B Manuale utente

Agilent Technologies

Agilent U1241B and U1242B

Handheld Digital Multimeter

Quick Start Guide

The following items are included with your multimeter:

✔Silicone test leads and 4mm probes

✔Printed Quick Start Guide

✔Four 1.5 V AAA alkaline batteries

✔Certificate of Calibration

If anything is missing or damaged, please contact the nearest Agilent Sales

Office.

For more detailed information, please refer to the Agilent U1241B and

U1242B Handheld Digital Multimeter User’s and Service Guide on Agilent

Web site (www.agilent.com/find/handheld-tools).

WARNING

Ensure the terminal connections are correct for that

particular measurement selection before starting any

measurement. To avoid damage to the device, do not

exceed the input limit.

U1241/42B Quick Start Guide

Measurement Functions Input Terminal Overload Protection

Voltage

COM

1000 V R.M.S

Diode 1000 V R.M.S

< 0.3 A short circuit

current

Resistance

Capacitance

Current (μA and mA) µA.mA COM 440 mA/1000 V

30 kA/fast-acting fuse

Current (A) A COM 11 A/1000 V 30

kA/fast-acting fuse

Temperature +T1 –T1 1000 V R.M.S

Temperature (for

U1242B)

+T2 –T2 440 mA/1000 V

30 kA/fast-acting fuse

Annunciator

Keypad

Rotary Switch

Input terminal

U1241B U1242B

U1241/42B Quick Start Guide

Annunciator Display

No. Descriptions No. Descriptions

121-segment analog bar graph

display

12 MINMAX Recording mode

2Capacitor discharge indicator 13 Harmonic Ratio mode (for

U1242B)

3Cold junction of ambient

temperature

14 Data logging mode (for

U1242B)

4Audible continuity for

resistance and diode function

15 Data logging viewing mode (for

U1242B)

5Primary display 16 Auto or manual data logging

mode and datalog viewing

mode

6AC or DC measurement mode 17 Secondary display

(temperature display)

7Auto range 18 Null math function

8Diode / Audible continuity 19 Thermocouple type for

temperature measurement

9T1, T2 and T1 – T2 temperature

measurements scan

(for U1242B)

20 Primary measurement units

21 Measurement range

10 Data hold 22 Low battery indicator

11 T1, T2* and T1 – T2*

temperature measurements

23 Auto power off indicator

*T2 temperature measurement and delta (T1 – T2) are only available for U1242B.

11 13

15 17

12 16

U1241/42B Quick Start Guide

Functions and Features

Function First level

functions

Range Second level functions

(press )

Range

OFF Turn off the

meter

DCV

measurement

0.1 mV

1000 V

ACV measurement 50 mV

1000 V

Harmonic ratio (for

U1242B)

0.0% to

99.9%

Diode

measurement

Switch counter

measurement

Resistance

measurement

0.1 Wto

100 MW

Audible continuity

measurement

Capacitance

measurement

0.1 nF to

10 mF

DCµA 0.1 μA to

10 mA

ACµA measurement 50 μA

10 mA

DCmA 0.01 mA

440 mA

ACmA measurement 5 mA to

440 mA

mA% scale

DCA 0.001 A

to 10 A

ACA measurement 0.5 A to

10 A

T1 T1 temperature –40 °C to

1000 °C

T2 and T1–T2

temperature

measurements (for

U1242B)

–40 °C

1000 °C

Keypad

Rotary Switch

U1241/42B Quick Start Guide

Action Steps

Turns ON backlight Press .

Checks battery capacity Press and hold for >1 s.

Freezes the measured value Press .

Starts MIN/MAX/AVG recording Press and hold for >1 s.

Offsets the measured value Press .

Scan the measured temperature (for

U1242B only)

Press and hold for > 1 s.

Changes the measuring range Press .

Turns on auto range Press and hold for > 1 s.

Measures frequency for AC signal Press .

Starts manual data logging Press and hold for > 1 s.

Tilt Stand

Tilt stand at 60 º Tilt stand at 30 º

Safety Notices Safety Information

The Agilent U1241B and U1242B are

safety-certified in compliance with the

following safety and EMC requirements:

• IEC 61010-1:2001 / EN61010-1:2001

• USA: UL 61010-1:2004

• Canada: CSA C22.2 No. 61010-1:2004

• IEC 61326-1:2005/ EN 61326-1:2006

• Canada: ICES/NMB-001:2004

• Australia/New Zealand: AS/NZS

CISPR11:2004

Safety Symbols

CAUTIONCAUTION

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.

Earth (ground) terminal

Equipment protected

throughout by double

insulation or reinforced

insulation

Caution, risk of electric

shock

Caution, risk of danger (refer

to the instrument 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

For further safety information details, refer to the

Agilent U1241B and U1242B Handheld Digital Multimeter

User’s and Service Guide.

Printed in Malaysia

U1241-90055

Third Edition, August 16, 2013

Agilent Technologies

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