Extech Instruments 381676A User Manual Download Page 5

381676A-en-GB_V1.1   08/15 

5

Test

 

Lead

 

Notes

 

The

 

supplied

 

black

 

test

 

leads

 

(standard

 

test

 

lead

 

and

 

alligator

 

clip

 

probe)

 

have

 

protective

 

plugs

 

that

 

must

 

be

 

removed

 

before

 

being

 

inserted

 

in

 

the

 

bottom

 

of

 

the

 

meter.

 

This

 

protective

 

apparatus

 

must

 

be

 

removed

 

from

 

the

 

end

 

of

 

the

 

lead

 

that

 

plugs

 

into

 

the

 

meter.

 

The

 

positive

 

(+)

 

red

 

probe

 

cover

 

is

 

used

 

when

 

making

 

Category

 

III

 

or

 

higher

 

measurements.

 

Twist

 

to

 

remove

 

this

 

probe

 

cover

 

when

 

making

 

Category

 

II

 

or

 

lower

 

measurements.

 

 

Maximum

 

Input

 

Limits

 

 

Measurements

 

Input

 

Limits

 

Voltage

 

DC

 

or

 

AC

 

200mV

  

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

 

finally

 

turning

 

off.

 

To

 

turn

 

the

 

meter

 

on

 

again,

 

simply

 

rotate

 

the

 

function

 

switch

 

to

 

the

 

desired

 

function.

 

To

 

defeat

 

the

 

APO

 

feature,

 

press

 

and

 

hold

 

the

 

H

 

button

 

while

 

turning

 

the

 

meter

 

on.

 

The

 

APO

 

feature

 

will

 

re

enable

 

after

 

the

 

meter

 

is

 

turned

 

off

 

again.

 

 

www.

GlobalTestSupply

.com

Find Quality Products Online at:

[email protected]

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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