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- 19 -

Chapter

Chapter

Chapter

Chapter

4

4

4

4

Using

Using

Using

Using

Memory

Memory

Memory

Memory

&

&

&

&

Communications

Communications

Communications

Communications

Features

Features

Features

Features

Introduction

Introduction

Introduction

Introduction

Chapter 4 shows you how to use memory and communication features available on the meters.

Data

Data

Data

Data

Storage

Storage

Storage

Storage

The meter has three types of memory data: SAVE mode, LOG mode and COMP mode.

Notice

Notice

Notice

Notice

Undertake “clearing memory data” operation first if the date storage functions are used firstly.

The date storage mode is unavailable when the meter is in D.H, A.H, P.H, Hz% or MAX MIN function. The COMP mode is
unavailable when measuring capacitance. The range cannot be changed when the date storage functions are active.

In MEM position, “- - - -”on the screen indicates data storage is empty and could save the data; “FULL” on the screen
indicates data storage is full and will stop saving.

In LOG or COMP mode, no data could be saved if there is a recording (no matter the storage is full or not).
The user should clear off the memory and then start to save. In LOG or COMP mode, the meter will return to measuring
mode when the storage is full.

Low battery indicator

Appears on the screen to indicating forbid saving.

Table

Table

Table

Table

4-1.

4-1.

4-1.

4-1.

Memory

Memory

Memory

Memory

Capacity

Capacity

Capacity

Capacity

SAVE

SAVE

SAVE

SAVE

Mode

Mode

Mode

Mode

Proceed as follows:

1.

Press

to save reading, “

MEM

MEM

MEM

MEM

” appears in the display and record number is displayed in the secondary display, the

meter enters into SAVE mode.
2.

Press

to save present value in the memory and the record number increments by one.

3.

Press

for more than 2S o

r set the rotary switch to any other position to exit the SAVE mode.

LOG

LOG

LOG

LOG

Mode

Mode

Mode

Mode

Proceed as follows:
1.

Set the starting time and interval time of the real time data (see “Changing the Default Settings”).

2.

Press

, “

LOG

LOG

LOG

LOG

” appears on the screen and the recorded number appears in the secondary display; the elapsed time

display shows the time and the meter enters into LOG mode.
3.

Press

to start log mode, and counts the time. On the starting time, the meter begins to store the data in the Logging

Saving Memory. The meter exits the mode automatically when the storage is full.
4.

Press

for more than 2S or change the rotary switch position to exit the mode.

COMP

COMP

COMP

COMP

Mode

Mode

Mode

Mode

1.

Press

, “

COMP

COMP

COMP

COMP

” appears on the screen and the record number appears in the secondary display; the elapsed time

display shows the time and the meter enters into COMP mode.
2.

Set the upper and lower limits. Press

to set the upper limit and “

MAX

MAX

MAX

MAX

” appears on the screen, and the digit set part in

the primary display flashes. Press the blue button to select the set digits. Use

or

to change the numerical value of the

set digits. Press

again to set the lower limit and “MIN” displays. The setting way of the lower limit is same as that of the

upper limit. Press for the third time to save the set data.
3.

Press

to start COMP mode. If you do not undertake step 2, then the default values of the upper and lower limits are

zero. Pressing

is invalid when setting the upper and lower limit values.

Viewing

Viewing

Viewing

Viewing

Memory

Memory

Memory

Memory

Data

Data

Data

Data

Use the following procedure to view memory data:
1.

Disconnect the input leads at the measurement source.

Warning

Warning

Warning

Warning

To

To

To

To

avoid

avoid

avoid

avoid

electric

electric

electric

electric

shock,

shock,

shock,

shock,

disconnect

disconnect

disconnect

disconnect

the

the

the

the

test

test

test

test

leads

leads

leads

leads

when

when

when

when

the

the

the

the

rotary

rotary

rotary

rotary

switch

switch

switch

switch

is

is

is

is

in

in

in

in

the

the

the

the

MEM

MEM

MEM

MEM

position.

position.

position.

position.

Notice

Notice

Notice

Notice

Memory Mode

Memory Capacity

SAVE mode

500

LOG mode

1000

COMP mode

1000

Содержание 98A

Страница 1: ...d on on on the the the meter meter meter between between between terminals terminals terminals or or or between between between any any any terminal terminal terminal and and and earth earth earth gro...

Страница 2: ...seconds seconds and and and then then then restart restart restart the the the meter meter meter Automatic Automatic Automatic Power Power Power Off Off Off The meter will go into automatic power off...

Страница 3: ...how the pushbutton function Figure Figure Figure 2 1 O 2 1 O 2 1 Outer uter uter Structure Structure Structure Figure Figure Figure 2 2 Input 2 2 Input 2 2 Input Jacks Jacks Jacks Table Table Table 2...

Страница 4: ...button Function Function Function AC Voltage Measurement dBm Measurement DC Voltage Measurement None DC mA Voltage Measurement TC Measurement Resistance Measurement Diode testing continuity testing RT...

Страница 5: ...ent primary display shows MIN MAX AVG value in cycle while secondary display shows present reading Low battery indicator The indicator in the display notifies you that the batteries are low and should...

Страница 6: ...elow 1 mW dBm AC AC AC DC DC DC Alternating current direct current Display the duty cycle ratio of signals when measuring frequency Bar Graph The polarity indicator both ends of the bar graph show the...

Страница 7: ...7...

Страница 8: ...and enter manual ranging In manual select next input range In Comparative mode press to set MAX and MIN value Press to enter Setup mode when turning the meter on and press to select the set value in t...

Страница 9: ...A H A H Note Note Note Peak Peak Peak HOLD HOLD HOLD mode mode mode is is is only only only available available available in in in DCV DCV DCV In Peak HOLD mode the meter detects refresh and displays...

Страница 10: ...e Mode Mode Note The function is invalid in REL TC RTD dBm DC mV Diodes Continuity Capacitance Frequency Duty cycle ratio features The MIN MAX mode stores minimum MIN and maximum MAX input values MIN...

Страница 11: ...ge Voltage is the difference in electrical potential between two points The polarity of ac alternating current voltage varies over time while the polarity of direct current voltage is constant over ti...

Страница 12: ...easurements with the following procedure 1 Make an ac volt measurement to be used as a reference point 2 Press to select dB The dBm value appears in the primary display and the ac volts reading appear...

Страница 13: ...ps beeps beeps constantly constantly constantly if if if the the the input input input voltage voltage voltage is is is more more more than than than AC AC AC 750V 750V 750V rms rms rms which which wh...

Страница 14: ...ead lead can can can add add add 0 1 0 1 0 1 to to to 0 2 0 2 0 2 of of of error error error to to to resistance resistance resistance measurements measurements measurements To To To test test test th...

Страница 15: ...st test test disconnect disconnect disconnect circuit circuit circuit power power power and and and discharge discharge discharge all all all high voltage high voltage high voltage capacitors capacito...

Страница 16: ...the the the red red red lead lead lead with with with the the the positive positive positive point point point and and and the the the black black black lead lead lead with with with the the the nega...

Страница 17: ...nce to select alternating current measurement and the screen shows AC 4 Open the circuit path to be tested Touch the red probe to the more positive side of the break touch the black probe to the more...

Страница 18: ...atio and then back to voltage current Frequency Duty cycle ratio Voltage Current Voltage Current Frequency Frequency Duty cycle ratio Figure3 13 Frequency Figure3 13 Frequency Figure3 13 Frequency and...

Страница 19: ...ng time and interval time of the real time data see Changing the Default Settings 2 Press LOG LOG LOG appears on the screen and the recorded number appears in the secondary display the elapsed time di...

Страница 20: ...MEM MEM MEM position position position Notice Notice Notice In In In MEM MEM MEM function function function each each each operation operation operation could could could only only only read read read...

Страница 21: ...any dirt that may be in the terminals 3 Soak a new swab with alcohol Work the swab around in each terminal Testing Testing Testing the the the Fuses Fuses Fuses Warning Warning Warning To To To avoid...

Страница 22: ...er needs four AAA alkaline batteries Warning Warning Warning To To To avoid avoid avoid electrical electrical electrical shock shock shock Remove Remove Remove test test test leads leads leads from fr...

Страница 23: ...Pollution Degree 2 Safety Standard issued by IEC Fuse Fuse Fuse Protection Protection Protection for for for mA mA mA or or or A A A inputs inputs inputs Fuse Fuse Fuse Protection Protection Protectio...

Страница 24: ...esolution Resolution Accuracy Accuracy Accuracy 40 400Hz Remark Remark Remark 400 0 mV 0 1 mV 1 0 4 Specifications are valid from 5 to 100 of amplitude range 400mV is only confined to manual range AC...

Страница 25: ...5 4 4 000A 0 001A 1 4 Measuring Impedance 0 01 Overvoltage 10A 250V fast blow fuse 10 00A 0 01A 1 4 Range Range Range Frequency Frequency Frequency Accuracy Remark 400 0 0 1 0 2 4 Open circuit voltag...

Страница 26: ...rounds to apply this product to a particular purpose K 200 to 950 1 0 5 2 100 0 5 1 100 By using ITS 90 temperature scale Note The accuracy does not include the error of internal temperature compensat...

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