PCE Instruments PCE-UT81B Manual de usuario

www.pce-industrial-needs.com

Tursdale Technical Services Ltd

Unit N12B

Tursdale Business Park

Co. Durham

DH6 5PG

United Kingdom

Phone: +44 ( 0 ) 191 377 3398

Fax: +44 ( 0 ) 191 377 3357

info@tursdaletechnicalservices.co.uk

http://www.industrial-needs.com/

Manual

Handheld Oscilloscope

PCE-UT81B

[email protected]



Tableofcontents

Before You Start ...................................................................................................................................... 3

Overview.............................................................................................................................................. 3

Unpacking Inspection .......................................................................................................................... 3

Safety Information ............................................................................................................................... 4

Rules For Safe Operation..................................................................................................................... 4

International Electrical Symbols.......................................................................................................... 5

Using the Testing Tool............................................................................................................................. 5

Reading the Screen .............................................................................................................................. 5

The Meter Structure ............................................................................................................................. 6

Functional Buttons ............................................................................................................................... 7

Making Measurement .............................................................................................................................. 8

Introduction.......................................................................................................................................... 8

A.Scope Mode .......................................................................................................................... 8

B.Digital Multimeter Mode .................................................................................................. 11

Using Software....................................................................................................................................... 19

Maintaining The Test Tool .................................................................................................................... 19

A. General Service ....................................................................................................................... 19

B. Replacing the Fuses................................................................................................................. 19

C. Replacing the Battery .............................................................................................................. 20

Specifications......................................................................................................................................... 21

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Before You Start

Overview

This Operating Manual covers information on safety and cautions. Please read the relevant information

carefully and observe all the Warnings and Notes strictly.

Warning

To avoid electric shock or personal injury, read the “Safety Information” and “Rules for Safe

Operation” carefully before using the Meter.

Scope Digital Multimeter UT81B (hereafter referred to as “the Meter”) is a 3999 counts and 3 3/4 digits

adopting digital control techique with both waveform and multimeter all in one.

Scope mode is a complete intelligent measurement system including signal input, sampling, data

process, auto search and waveform save and recall. It has bandwidth 8MHz, real-time sample rate

40MS/s with peak rate sampling process can catch up pulse industrial signal. It can measure AC/DC

engine, transducer, circuit, control, UPS and industrial equipments. It is an ideal tools in professional

repairing industries.

Digital Multimeter mode can measure AC voltage and current, DC voltage and current, Resistance,

Capacitance, Frequency, Duty Cycle, Diodes and Continuity.

Unpacking Inspection

Open the package case and take out the Meter. Check the items shown on Table 1-1 carefully to see any

missing or damaged part:

Table 1-1. Unpacking Inspection

Item Description Qty

1 English Operating Manual 1

piece

2 USB interface cable 1

piece

3 CD-ROM (Installation Guide & Computer

Interface Software)

piece

4 Test Lead 1 pair

5 Alligator Clip 1

piece

6 Power Adaptor 1

piece

7 1.5V Batteries (R6) 4

pieces

8 Scope Probe (available at extra cost) 1

piece

9 BNC probe (available at extra cost) 1

piece

In the event you find any missing or damage, please contact your dealer immediately.

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Safety Information

This Meter complies with the standards IEC61010 safety measurement requirement: in pollution degree

2, overvoltage category (CAT. II 1000V, CAT.III 600V) and double insulation.

CAT.II: Local level, appliance, PORTABLE EQUIPMENT etc., with smaller transient overvoltages than

CAT. III

CAT. III: Distribution level, fixed installation, with smaller transient overvoltage than CAT. IV

Use the Meter only as specified in this operating manual, otherwise the protection provided by the Meter

may be impaired.

In this manual, a Warning identifies conditions and actions that may pose hazards to the user, or may

damage the Meter or the equipment under test.

A Note identifies the information that user should pay attention to.

International electrical symbols used on the Meter and in this Operating Manual are explained on page

XX.

Rules For Safe Operation

Warning

To avoid possible electric shock or personal injury, and to avoid possible damage to the Meter or to the

equipment under test, adhere to the following rules:

zBefore using the Meter inspect the case. Do not use the Meter if it is damaged or the case (or part of

the case) is removed. Look for cracks or missing plastic. Pay attention to the insulation around the

connectors.

zInspect the test leads for damaged insulation or exposed metal. Check the test leads for continuity.

Replace damaged test leads with identical model number or electrical specifications before using the

Meter.

zDo not apply more than the 1000V rms between any terminal and grounding to avoid electric shock or

damages to the Meter.

zThe rotary switch should be placed in the right position and no any changeover of range shall be made

during measurement is conducted to prevent damage of the Meter.

zWhen the Meter working at an effective voltage over 60V in DC or 42V rms in AC, special care should

be taken for there is danger of electric shock.

zUse the proper terminals, function, and range for your measurements.

zDo not use or store the Meter in an environment of high temperature, humidity, explosive, inflammable

and strong magnetic field. The performance of the Meter may deteriorate after dampened.

zWhen using the test leads, keep your fingers behind the finger guards.

zDisconnect circuit power and discharge all high-voltage capacitors before testing resistance,

continuity, diodes.

zBefore measuring current, check the Meter’s fuses and turn off power to the circuit before connecting

the Meter to the circuit.

zReplace the battery as soon as the battery indicator appears. With a low battery, the Meter might

produce false readings that can lead to electric shock and personal injury.

zWhen servicing the Meter, use only the same model number or identical electrical specifications

replacement parts.

zThe internal circuit of the Meter shall not be altered at will to avoid damage of the Meter and any

accident.

zSoft cloth and mild detergent should be used to clean the surface of the Meter when servicing. No

abrasive and solvent should be used to prevent the surface of the Meter from corrosion, damage and

accident.

zThe Meter is suitable for indoor use.

zTurn the Meter off when it is not in use and take out the battery when not using for a long time.

zConstantly check the battery as it may leak when it has been using for some time, replace the battery

as soon as leaking appears. A leaking battery will damage the Meter.

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International Electrical Symbols

Symbols used on the Meter and in this manual are explained in Table1-2.

Table 1-2. International Electrical Symbols

AC or DC

DC Measurement

AC Measurement

Continuity Test

Diode

Grounding

Double Insulated

Warning. Re

er to the

eratin

Manual

Deficiency of Built-In Battery

orms to

tandards o

Euro

ean Union

Using the Testing Tool

Reading the Screen

The screen displays the menu that provides the following choices available:

Table 2-1. Reading the Screen

Display Description

Contrast The degree of contrast

Auto Off Sleep mode time

BK Light Display backlight

BEEP Beeper on and off

ENTER Confirm

▲Increase

▼Decrease

MOVE ▲Waveform moves up

MOVE ▼Waveform moves down

RANG▲Increase a range

RANG▼Decrease a range

BASE ▲Increase a time base

BASE ▼Decrease a time base

BASE > Waveform moves right

BASE < Waveform moves left

TRIG▲Trigger moves up

TRIG▼Trigger moves down

SLOP Trigger slope adjustment

AUTO Auto trigger mode

NORM Normal trigger mode

SHOT Single trigger mode

The M

The Figu

1. LC

2. Fun

3. Rot

4. CO

5. mA

ter Struc

re 2-1 show

Display

tional Butto

ry Switch

Input Ter

AInput Ter

ure

the Meter

inal

inals

tructure.

Figure 2-1. Meter S

ructure

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6. Oth

7. Po

8. US

9. 10A

Functi

The butto

Table 2-2

F1,

Tri

r Input Ter

er adaptor I

Terminals

Input Termi

nal Butt

s activate fe

tons

F2, F3 and

e/Call

inals

put Termin

tures that au

ment the fun

Figur

Tabl

Descripti

Software f

Under sco

and AC m

Under sco

base.

Under sco

mode.

In multime

mode whe

button is i

buzzer an

In scope

base to a

To switch

reading (

voltage, fr

Press Set

and beep

Under sco

Press Hol

ction selecte

2-2. Function

nctional bu

pe mode, P

asuremen

pe mode, pr

ter mode:

n measurin

valid when

capacitan

ode: Press

to.

etween wa

ultimeter m

quency, cu

button to se

pe mode, pr

button to

with the rota

l Buttons

tons, detail

ess Range

ss Time b

ss Trig bu

ress Auto

resistance,

easuring c

Auto button

eform displ

de). This b

rents mode.

t the auto p

ss Save/C

nter or exit

y switch. Th

please refe

utton to sw

tton to set t

ton to chan

utton to ent

voltage and

pacitance,

to set the a

y (scope m

utton is only

wer off, bac

lto store a

old mode.

nfo@tursdalete

buttons are

r to the belo

itch betwee

e X-axis of

e the trigge

r auto rangi

current. Th

diode, conti

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ode) and di

valid when

klight, contr

d recall dat

hnicalservices.c

shown in

ime

uity

time

ital

nder

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Making Measurement

Introduction

Chapter 3 explains how to make measurements.

You could turn the Meter off by turning to OFF position or set up the sleep mode from 1-30 minutes.

Please must ensure the Meter is not under sleep mode if you turn the Meter on but without display.

To avoid false readings, which could lead to possible electric shock or personal injury, replace the battery

as soon as the battery indicator “ ” appears.

A. Scope Mode

zThe LCD top right part display: RUN, HLD, REV

zThe LCD top right corner has battery icon to indicate when the battery is lower than 5V.

zUnder scope mode, both reading and waveform will be displayed.

i. Setting up Sleep Mode, Contrast, Beep

Based on the working environment to set up sleep mode, contrast, beep

Press Set button to set the auto power off, display backlight, contrast and beep

Auto off Bk Light Contrast Beep

F1 F2 F3 F4

F1: Set auto power off time

Auto off ▲15 ▼ENTER

F1 F2 F3 F4

The time level is from OFF, 1 to 30 minutes. Press F4 to confirm, save and return. Press functional

button to exit and the setting remains unchanged.

F2: Set the Display Backlight

BK Light ▲15 ▼ENTER

F1 F2 F3 F4

The brightness level from 0 to 31. Press F4 to confirm, save and return. Press functional buttons to exit,

the setting is kept, but will not save. The setting will be lost after power off.

F3: Set the LCD contrast

Contrast ▲15 ▼ENTER

F1 F2 F3 F4

The contrast level from 0 to 31. Press F4 to confirm, save and return. Press functional buttons to exit,

the setting is kept, but will not save. The setting will be lost after power off.

F4: Set the beeps features, it can only be used under resistance, diode and continuity measurement.

Beep ON OFF ENTER

F1 F2 F3 F4

F2 to turn the beep on

F3 to turn the beep off

F4 to confirm , save and return

Press functional buttons to exit, the setting is kept, but will not save. The setting will be lost after power

off.

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ii. ACV, DCV, Hz, ACA and DCA range

Turn the rotary switch to ACV, DCV, Hz, ACA or DCA range, the Meter displays digital reading

(Multimeter mode). Press Mode to switch to waveform display (scope mode) as below Figure 4. When

entering scope mode, time base is auto trace, the amplitude is manual set, you may need to re-set them.

You could set the trigger level as well if it is needed. Details of measurement operation of ACV, DC, Hz,

ACA or DCA can be seen from B. Digital Multimeter Mode:

Figure 3-1. Waveform Display

zPress Range to switch between DC and AC measurement.

zWhen the frequency and amplitude of a waveform is unknown, press Auto:

¾When the amplitude is set to auto, the amplitude indicator will be shown white text in black

background. When the amplitude is set to manual, the amplitude indicator will be shown black text in

white background.

¾When the time base is set to auto, the time base indicator will be shown white text in black

background. When the time base is set to manual trace, the time base indicator will be shown black

text in white background.

¾When the time base is between 20ms – 100ns, it is possible to set the auto. When the time base is

between 50ms – 5s, the auto feature will be in valid.

zY-axis adjustment: Press Range button under scope mode, the corresponding functional button:

Move ▲Move ▼Rang ▲Rang ▼

F1 F2 F3 F4

F1: move up the waveform

F2: move down the waveform

F3: go up range

F4: go down a range

The auto set feature will be off when changing the measurement mode

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zPress Time button under scope mode, the corresponding functional button:

Base ▲Base ▼Base < Base >

F1 F2 F3 F4

F1: increase the number of periods

F2: decrease the number of periods.

F3: Trigger point move left

F4: Trigger point right move

The auto set feature will be off when changing the measurement mode.

iii. Trigger function

Press Trig button under scope mode, the corresponding function buttons:

Trig ▲ Trig ▼Auto/Norm/Shot Slop Rrise/Fall

F1 F2 F3 F4

F1: move the trigger level up

F2: move the trigger level down

F3: select the trigger mode: auto, normal or single

F4: slope adjustment: rise or fall

iv. Waveform data save and recall

Press Save/Call button under scope mode, the corresponding functional buttons:

Save/Call ▲1 ▼Enter

F1 F2 F3 F4

F1: save or recall

F2 and F3: select location (location from 0-9, total 10 location)

F4: confirm

zWhen saving the data, it will overwrite the current data in the location no matter that location has

data or not.

zIf you recall the location has no data, the meter will appear error message, you need to press HOLD

button to continue measurement,

zIf you recall the location has data, it will save the current setting and display the data, the LCD top

left shows REV to indicate recalling mode is on. Press HOLD button to return to working mode and

continue measurement. You could continue recalling under recall mode or save the data.

zRecall mode can be used under any scope mode. For example, it is possible to recall the waveform

or data saved from voltage or frequency mode when the meter is under current measurement mode.

zRecall mode can be worked under any waveform mode. For example: the Meter is at current mode

but recalling the waveform or data which are saved under voltage or frequency mode. The Meter must be

returned to working mode to carry out measurement.

Remarks:

In order to have more accurate waveform, user can buy an optional BNC probe and scope probe to

decrease signal attenuates. The scope probe directly connect to the BNC probe.

When measuring voltage and frequency signal, connect the BNC black probe to the COM input terminal

and the red probe to the voltage terminal.

When measuring current signal, connect BNC black probe to the COM terminal and the red probe to mA

terminal.

Don’t connect the BNC probe to the 10A terminal.

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