Extech Instruments 381676A User Manual Download Page 9 | Manualshive

Page: 9 / 13

Extech Instruments 381676A User Manual Download Page 9

381676A-en-GB_V1.1 08/15

9

RESISTANCE

MEASUREMENTS

WARNING

:

To

avoid

electric

shock,

disconnect

power

to

the

unit

under

test

and

discharge

all

capacitors

before

taking

any

resistance

measurements.

NOTES:

‘OL’

indicates

an

over

‐

range

condition

in

manual

mode.

A

higher

range

should

then

be

selected.

If

the

resistance

measured

is

greater

than

1M



,

the

meter

may

take

a

few

seconds

to

obtain

a

stable

reading.

This

is

normal

for

high

resistance

measurements.

When

the

leads

are

not

connected

or

when

measuring

an

open

circuit,

the

display

will

read

‘OL’.

1.

Use

the

probe

cover

if

making

measurements

on

category

III

or

above

installations

2.

Set

the

function

switch

to

the



position.

3.

Use

the

Mode

(M)

button

to

select

the

resistance

mode

(



).

4.

Insert

the

black

test

lead

banana

plug

into

the

negative

jack

at

the

bottom

of

the

meter.

5.

Touch

the

test

probe

tips

across

the

circuit

or

part

under

test.

It

is

best

to

disconnect

one

side

of

the

part

under

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

circuit

is

off

and

capacitors

have

fully

discharged

before

measuring

continuity.

NOTE:

If

the

resistance

measured

is

greater

than

200 ,

the

test

leads

are

not

connected,

or

when

measuring

an

open

circuit,

the

display

will

read

‘OL’.

1.

Use

the

probe

cover

if

making

measurements

on

category

III

or

above

installations

2.

Set

the

function

switch

to

the



position.

3.

Use

the

Mode

(M)

button

to

select

the

audible

continuity

mode.

4.

Insert

the

black

test

lead

banana

plug

into

the

negative

jack

at

the

bottom

of

the

meter.

5.

Touch

the

test

probe

tips

to

the

circuit

or

wire

under

test.

6.

If

the

resistance

is

less

than

approximately

50



,

the

audible

tone

will

sound.

M

www.

GlobalTestSupply

.com

Find Quality Products Online at:

[email protected]

«
...
7
8
9
10
11
...
»

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...

Reviews:

No comments