Extech Instruments 381676A User Manual Download Page 10 | Manualshive

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Extech Instruments 381676A User Manual Download Page 10

381676A-en-GB_V1.1 08/15

10

LOGIC

TEST

WARNING

:

To

prevent

electric

shock

and

damage

to

the

meter

or

personal

injury,

do

not

measure

voltages

that

may

exceed

100V

AC

rms.

NOTE:

If

the

test

leads

are

disconnected

or

if

the

voltage

measured

is

<

1.5V

the

LED

will

be

green.

1.

Use

the

probe

cover

if

making

measurements

on

category

III

or

above

installations

2.

Set

the

function

switch

to

the

LOGIC

position.

3.

Insert

the

black

test

lead

banana

plug

into

the

negative

(common)

jack

at

the

bottom

of

the

meter.

4.

Connect

the

black

test

lead

to

the

circuit’s

ground

(

‐

)

terminal.

5.

Hold

down

the

Mode

(M)

button

and

touch

the

test

probe

to

the

circuit

for

measurement.

The

LEDs

near

the

tip

of

the

meter

will

indicate

the

current

logic

level.

6.

If

the

measurement

is

0~1.5V,

the

Green

LED

will

light

and

the

display

will

show

a

down

arrow,

indicating

that

the

logic

test

result

is

a

LOW

(‘0’)

condition.

7.

If

the

measurement

is

1.5~3.5V,

the

Green

and

Red

LEDs

will

be

OFF.

8.

If

the

measurement

is

3.5~5V,

the

Red

LED

will

light

and

the

display

will

show

an

up

arrow,

indicating

that

the

logic

test

result

is

a

HIGH

(‘1’)

condition.

See

diagram.

0V 1.5V 3.5V 5V

Green LED ON

Green & Red LED OFF

Red LED ON

LOW ‘0’

HIGH ‘1’

Maintenance

WARNING:

To

avoid

electrical

shock,

disconnect

the

test

leads

from

any

source

of

voltage

before

removing

the

back

cover

or

the

battery

cover.

WARNING:

To

avoid

electrical

shock,

do

not

operate

the

meter

until

the

battery

cover

is

in

place

and

fastened

securely.

This

meter

was

designed

to

provide

years

of

dependable

service.

However,

if

the

following

guidelines

are

not

followed,

the

dependability

of

the

meter

can

be

compromised:

1.

KEEP

THE

METER

DRY

.

If

it

gets

wet,

wipe

it

off

and

allow

it

to

dry

before

use.

2.

USE

AND

STORE

THE

METER

IN

NORMAL

TEMPERATURES.

Environmental

extremes

can

shorten

the

life

of

the

electronic

parts

and

distort

or

melt

plastic

parts.

3.

HANDLE

THE

METER

GENTLY

AND

CAREFULLY.

4.

KEEP

THE

METER

CLEAN.

Wipe

the

case

occasionally

with

a

damp

cloth.

Do

not

use

chemicals,

cleaning

solvents,

abrasives,

or

detergents.

5.

USE

ONLY

FRESH

BATTERIES

OF

THE

RECOMMENDED

SIZE/TYPE.

6.

IF

THE

METER

IS

TO

BE

STORED

FOR

A

LONG

PERIOD

REMOVE

THE

BATTERIES

7.

Repairs

should

only

be

implemented

by

trained

personnel.

www.

GlobalTestSupply

.com

Find Quality Products Online at:

[email protected]

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Summary of Contents for 381676A

Page 1: ...USER GUIDE Pen Multimeter with Voltage Detector Model 381676A www GlobalTestSupply com Find Quality Products Online at sales GlobalTestSupply com ...

Page 2: ...tact and free from lead wire exposure or other damage Use only the supplied test leads Safety during use Be sure to set the appropriate function and range before use Never exceed the limits indicated in the specification table of this manual Never touch probes test leads or alligator clip when connected to live circuit Do not measure voltage on terminals that exceed 600V above earth ground Always ...

Page 3: ... test probe 2 Removable probe cover 3 NCV alert LED indicator 4 Logic High Low LED Indicators 5 Finger guard 6 Rotary function switch 7 Range R button 8 Data Hold H button 9 Maximum Hold MAX button 10 Mode M button 11 NCV non contact volt detector button 12 LCD display 13 Jack for Common negative test lead 14 Common negative test lead Note The battery compartment is located on the rear of the inst...

Page 4: ...ain show real time readings MAXIMUM HOLD MAX Button To display only the highest reading press the MAX button The M H display icon will be visible on the display while in the Max Hold mode Now the display will only change when a higher reading than the displayed reading is encountered To return to normal operation press the MAX button again the M H display icon will switch off MODE M BUTTON The Mod...

Page 5: ...0mV range 250V DC or AC rms 2 600V range 600V DC or AC rms Current DC or AC Fuse protection FF400mA 600V Logic Resistance Continuity and Diode 250V DC or AC rms Automatic Power OFF APO The meter is equipped with an automatic power off feature to preserve battery energy After 14 minutes of inactivity the meter will emit 5 short beeps After another minute the meter will emit one long beep before fin...

Page 6: ...the meter as an AC Voltage Detector if the batteries are weak or bad Notes Voltage may still exist even with no indication given by the meter Do not solely rely on NCV detection to determine the presence of voltage Socket design insulation thickness and other factors may affect readings The NCV indicator LED may flash while measuring AC DC voltage due to the presence of induced voltage External en...

Page 7: ...ading will be displayed OL indicates an over range condition in manual mode A higher range should then be selected In manual mode select the highest range first if the value to be measured is unknown then lower the range as needed The AC millivolt range is only available in the manual range mode 1 Use the probe cover if making measurements on category III or above installations 2 Set the function ...

Page 8: ...lects the optimum range or the user may manually select a range by pressing the Range R button Press and hold the Range R button to return to the AUTO Range mode DIODE TEST NOTES The display shows the approximate forward voltage drop If the connections are reversed or the leads are not connected the display will show OL 1 Use the probe cover if making measurements on category III or above installa...

Page 9: ... test from the circuit so the rest of the circuit will not interfere with the resistance reading 6 Read the resistance on the display The meter automatically selects the optimum range or the user may manually select a range by pressing the Range R button Press and hold the Range R button to return to the AUTO Range mode CONTINUITY CHECK WARNING Risk of electric shock Ensure that all power to the c...

Page 10: ...ting that the logic test result is a HIGH 1 condition See diagram 0V 1 5V 3 5V 5V Green LED ON Green Red LED OFF Red LED ON LOW 0 HIGH 1 Maintenance WARNING To avoid electrical shock disconnect the test leads from any source of voltage before removing the back cover or the battery cover WARNING To avoid electrical shock do not operate the meter until the battery cover is in place and fastened secu...

Page 11: ... stipulations in respect of the disposal of the device at the end of its lifecycle Other Battery Safety Reminders Never dispose of batteries in a fire Batteries may explode or leak Never mix battery types Always install new batteries of the same type Test Lead or Alligator Clip Replacements WARNING Replacement leads must be of the same rating or higher as the leads supplied with the meter 600V 10A...

Page 12: ...sponse Average Resistance 200 0 1 1 0 of reading 3 digits 2k 0 001k 1 0 of reading 1 digit 20k 0 01k 200k 0 1k 2M 0 001M 20M 0 01M 1 0 of reading 5 digits Open Circuit Voltage approx 250mV Overload protection 250V DC or AC rms Continuity If measured resistance is 50 beeper will sound Open Circuit Voltage approx 500mV Overload protection 250V DC or AC rms Diode 0 001V Displays approx forward biased...

Page 13: ...emperature 10 o C to 50 o C 14 o F to 122 o F Operating Humidity 80 max non condensing Storage Humidity 70 maximum with battery removed Operating Altitude 2000m 6560 operating Low Battery Indication is displayed to alert battery replacement Batteries Two 2 1 5V AAA batteries Weight Size 129g 4 5oz 208 x 38 x 29mm 8 2 x 1 5 x 1 1 Safety For indoor use and in accordance with the requirements for dou...

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