background image

EX35x

en

GB_V1.2

   

12/15

 

20

Hz

 

and

 

%

 

Duty

 

Cycle

 

Test

 

Hz

 

and

 

Duty

 

Cycle

 

%

 

are

 

available

 

in

 

the

 

AC

 

Voltage

 

or

 

AC

 

Current

 

functions

 

or

 

can

 

be

 

selected

 

directly

 

in

 

the

 

Hz%

 

position

 

of

 

the

 

function

 

switch.

 

Follow

 

the

 

AC

 

voltage

 

or

 

AC

 

Current

 

procedures

 

for

 

operational

 

details.

 

 
 
 

 

Relative

 

Mode

 

This

 

function

 

applies

 

only

 

to

 

Voltage,

 

Current,

 

Temperature

 

and

 

Capacitance

 

modes.

 

In

 

Relative

 

mode

 

a

 

reference

 

reading

 

can

 

be

 

stored

 

with

 

which

 

to

 

compare

 

subsequent

 

readings.

 

Press

 

the

 

REL

 

button

 

to

 

store

 

the

 

displayed

 

reading

 

in

 

memory,

 

this

 

becomes

 

the

 

reference.

 

The

 

symbol

 

will

 

be

 

displayed

 

when

 

the

 

Relative

 

mode

 

is

 

active.

 

Subsequent

 

readings

 

will

 

now

 

be

 

compared

 

to

 

the

 

stored

 

reference

 

(Displayed

 

Reading

 

=

 

Measurement

 

minus

 

Reference).

 

Press

 

the

 

REL

 

button

 

again

 

to

 

exit

 

the

 

Relative

 

mode;

 

the

 

Relative

 

symbol

 

will

 

switch

 

off.

  

Max

 

Min

 

Mode

 

Press

 

the

 

MAX

 

MIN

 

button

 

to

 

start

 

recording

 

the

 

Max

 

and

 

Min

 

measured

 

values.

 

The

 

MAX

 

icon

 

will

 

appear

 

on

 

the

 

display.

 

Press

 

the

 

MAX

 

MIN

 

button

 

to

 

step

 

through

 

and

 

view

 

the

 

Max

 

value,

 

the

 

Min

 

value

 

and

 

the

 

Max

Min

 

value.

 

Press

 

and

 

Hold

 

the

 

MAX

 

MIN

 

button

 

for

 

2

 

seconds

 

to

 

exit

 

the

 

mode.

 

Max

 

Min

 

is

 

available

 

for

 

Voltage,

 

Current,

 

Resistance

 

and

 

Temperature.

 

Manual

 

range

 

is

 

automatically

 

selected

 

in

 

this

 

mode

 

%

 

Duty

 

Cycle

 

Note

:

 

Duty

 

Cycle

 

measurements

 

are

 

AC

 

only

 

for

 

this

 

meter.

 

Measurement

 

signals

 

must

 

be

 

‘zero

 

crossing’

 

and

 

must

 

reach

 ‐

0.7V

 

for

 

the

 

meter

 

to

 

properly

 

display

 

Duty

 

Cycle

 

%.

 

Содержание EX350

Страница 1: ...USER GUIDE True RMS Digital Multimeters EX350 Series EX350 True RMS Digital Multimeter EX355 True RMS Digital Multimeter with Temperature...

Страница 2: ...s 10 10A AC DC Current Measurements 12 mA A AC DC Current Measurements 13 Non Contact Voltage Detector 14 Resistance Measurements 15 Continuity Measurements 16 Capacitance Measurements 16 Lo Z AC Volt...

Страница 3: ...liable service Please visit our website www extech com to check for the latest version of this User Guide Product Updates Product Registration and Customer Support Features 6000 count EX355 or 4000 co...

Страница 4: ...r Guide Use caution working with voltages above 30 VAC RMS 42 VAC peak or 60 VDC These voltages pose a shock hazard To avoid misleading readings that could lead to electric shock and injury replace th...

Страница 5: ...s in which measures are taken to limit the transient over voltages to an appropriate low level Note Examples include protected electronic circuits OVERVOLTAGE CATEGORY II Equipment of OVERVOLTAGE CATE...

Страница 6: ...on 4 Hz button 5 Mode and LPF Button 6 Rotary function select switch 7 10A input terminal 8 uA and mA input terminal 9 Common input terminal 10 Positive input terminal Voltage Resistance Capacitance T...

Страница 7: ...o F Temperature units F Farads Capacitance measurement units Hz Hertz Frequency measurements unit Duty Cycle AC only Ohms Resistance measurement unit LPF Variable frequency voltage mode Battery status...

Страница 8: ...AC DC TEMP EX355 C F Press and Hold LPF in the ACV function to select variable frequency tests Press R Range to switch from Auto to Manual Range Hold to return to Auto Range Press activates Relative m...

Страница 9: ...r OFF after 15 minutes of inactivity To defeat this feature follow the steps below 1 With the meter OFF press and hold the M MODE button and while continuing to hold turn the rotary function switch to...

Страница 10: ...r DC EX355 only 4 The meter defaults to the Auto Range mode Auto displayed on LCD Press the R button to access the manual range mode Press the R button to step through the ranges Press and hold the R...

Страница 11: ...test Be sure to observe the correct polarity red lead to positive black lead to negative 6 The meter defaults to the Auto Range mode Auto displayed on LCD Press the R button to access the manual rang...

Страница 12: ...s and Hold the R button to return to the Auto Range mode 5 Current measurements must be taken in series with the circuit under test See accompanying diagram 6 Touch the black test lead to the negative...

Страница 13: ...ss the R button to manually range the meter Press the R button to step through the ranges Press and Hold the R button to return to the Auto Range mode 4 Press the M button to select AC or DC 5 Current...

Страница 14: ...e meter does not emit a tone or flash the LED in this mode there is still the possibility that voltage is present Please use caution 1 Turn the function switch to the NCV position to access the Non Co...

Страница 15: ...icon showing 4 The meter defaults to the Auto Range mode Auto displayed on LCD Press the R button to access the manual range mode Press the R button to step through the ranges Press and Hold the R bu...

Страница 16: ...e Measurements WARNING To avoid electric shock remove power to the circuit under test and discharge the capacitor under test before measuring Do not test on circuits or devices where 60VDC or 30VAC is...

Страница 17: ...proper decimal point and measurement type units symbols Variable Frequency Voltage Measurements When the function switch is turned to the LPF position the meter can measure voltage on signals with va...

Страница 18: ...e LCD when in Diode test mode 3 Touch the test probe tips to the diode or semiconductor junction under test Note the meter reading 4 Reverse the test lead polarity by reversing the red and black leads...

Страница 19: ...rving correct polarity 2 Turn the function switch to the Temp position Use the M button to select the desired unit of measure 3 Touch the temperature probe tip to the device under test or leave the te...

Страница 20: ...active Subsequent readings will now be compared to the stored reference Displayed Reading Measurement minus Reference Press the REL button again to exit the Relative mode the Relative symbol will swit...

Страница 21: ...y and store separately Fig 5 1 BATTERY AND FUSE REPLACEMENT Fuse Replacement The 600mA fuse can be replaced from the battery compartment 4 To replace the 10A fuse remove the four 4 screws that secure...

Страница 22: ...0 2 5 Add 7 0 for C F 2 5 3 0 Function Range Resolution Accuracy DC Voltage EX350 EX355 40 00mV 60 00mV 10 V 0 7 5 digits 400 0mV 600 0mV 0 1mV 0 5 2 digits 4 000V 6 000V 1mV 0 5 3 digits 40 00V 60 00...

Страница 23: ...y A EX350 EX355 400 0 A 600 0 A 0 1 A 1 0 3 digits 4000 A 6000 A 1 A mA 40 00mA 60 00mA 10 A 400 0mA 600 0mA 0 1mA A 4 000A 6 000A 1mA 1 2 3 digits 10 00A 10 00A 10mA ACA Frequency Response 45 400Hz F...

Страница 24: ...quency for Voltage or Current functions Frequency 1kHz AC voltage input amplitude of mV range 100mV input amplitude of V range the range 6 AC current input amplitude a 4000 6000 A 400 600mA 10A range...

Страница 25: ...C 86 to 104 F 50 RH maximum Storage Temperature and Humidity 10 to 50 C 14 to 122 F 80 RH maximum with battery removed Operating Altitude 2000m 6562 Battery power 2 AA batteries battery life 130 hours...

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