APPA 97, 97R User guide

- - -

DIGITAL MULTIMETER

C

E

OPERATOR'S MANUAL

APPA 97

197R

A

WARNING

THESE SERVICING INSTRUCTIONS ARE FOR USE BY QUALIFIED PERSONNEL ONLY.
TO AVOID ELECTRIC SHOCK, DO NOT PERFORM ANY SERVICING OTHER THAN THAT
CONTAINED IN THE OPERATING INSTRUCTIONS UNLESS YOU ARE QUALIFIED TO DO SO.

Also

the complete duty cycle for the

3

and off for

minutes rnin.

20A

measurement should be stated as on for

30

seconds rnax.,

INTRODUCTION

1-1

Unpacking and Inspection

Upon removing your new Digital Multimeter from its packing, you should have the following items:

1.

Digital Multimeter.

2.

Test lead set (one black, one red).

3.

Operators manual.

4. Protective holster.

1-2

Meter Safety

Terms as Marked on Equipment.

ATTENTION

-

Refer to manual.

DOUBLE INSULATION - Protection Class

DANGER - Risk of electric shock.

11.

Symbols in this Manual.

This symbol indicates where cautionary or other information is found in the manual.

B-

FUSE

a

Battery

1-2 Front Panel

1

Refer to Figure
and connectors.

1.

Digital Display - The digital display has a 3400 counts LCD readout with

2.

Rotary Switch -Select the Function and Range desired.

3.

COM

lnput Terminal -Ground input connector.

4.

VR

*

5.

FA

mA lnput Terminal - Positive input connector for Am? measurements (up to 320mA).

6.

A lnput Terminal - Positive input connector for Amp measurements (up to 20A).

and to the following numbered steps to familiarize yourself with the meter's front panel controls

65

"a"

polarity, decimal point,

lnput Terminal - Positive input connector for Volts, Ohms and Diode.

AC, LOR, RANGE, HOLD and unit annunciators

segments analog bar graph, auto

7.

Range Switch, (Manual Range)

8.

ACIDC,

9.

Hold

10.

-8

I

*

Selection Switch - Push the switch to measure AC Current or DC Current in the current

Switch

-This switch is used to hold measured value for all functions, and then "HOLD" annunciator is
displayed. Conversions are made but the display is not updated.

DELAY Q Switch

-This switch is used to delay hold the measured value. The "HOLD" annuciator is
displayed after push the "DELAY
cancel display hold or push "DISPLAY

canceled. Conversions are made but the display is not updated.
The beep will sound when push the HOLD Switch or after about

will sound when push the "DELAY

-"RangeM switch is pushed to select manual ranging and to change ranges.
When "Range" switch is pushed once "RANGE" anunciator on the LCD is
appeared. Push "RANGE" switch to select appropriate range to be used.

2

Push "RANGE" switch and hold

mode or to measure continuity or diode in

Q"

switch about 6 seconds. Push "HOLD" switch to

Q"

Q"

Switch.

seconds to return to Autoranging.

.$I

*

mode.

switch after 6 seconds the display hold is

6

seconds the beep

Figure

1

SPECIFICATIONS

2-1

General Specifications

:

Display
Polarity lndication
Overrange lndication

Low Battery lndication
Sampling
Auto Power Off
Operating Ambient

Storage Temperature
Temperature Coefficient
Power Requirements : IEC LR03, AM4 or

Battery Life : Alkaline 700 hours. (97)

The Liquid Crystal Display (LCD) with a maximum reading of 3200 and 65 segments bar graph.

:

Automatic, positive implied, negative indicated.

:

"OL"

or

"-OL".

:

"a

'7s displayed when the battery voltage drops below operating voltage.

:

2

timeslsec for digit. 12 timeslsec for analog bargraph.

:

Approx 10 minutes.

:

0°C to 50°C, 0 to 80% R.H.

:

-20°C to 60°C , 0 to 80%

:

0.15 x (Specified accuracy) / "C, <18"C or > 28°C

6LF22,6AM6, or NEDA 1604A 9V x 1 (97R)

Alkaline 350 hours.

(97R)

R.H.

AAA

size 1.5V x 2 (97)

when battery removed from meter.

.

Dimensions (W x

Accessories
2-2 Environmental Conditions

Indoor use.
Pollution Degree
Maximum Altitude

Installation Category
CAT Application field

The circuits not connected to mains.

1

The circuits directly connected to Low-voltage installation.

II

The building installation.
The source of the Low-voltage installation.

IV

H x D) : 84mm x 175mm x 31mm without holster.

95mm x 192mm x 50mm with holster.

:

Protective Holster , battery (installed), operators manual.

:

2

:

2000 Meter.

:

IEC 101 0, 1000V Cat.

11,

600V Cat.m

2-2

Electrical Specifications

Accuracy is f (%

(1)

DC Volts

1

Range

Input Impedance

reading + number

1

Resolution Accuracy (97)

:

10MR

of

digits) at

23°C f 5°C

at less than 80%

Accuracy

R.H

(97R)

Over voltage

protection

1000V rms

(2)

AC Volts

Range Resolution

*

Frequency Response : 40Hz - 300Hz for 3V Range.

**

Frequency Response : 40Hz - 1 KHz (40Hz - 300Hz for 3V range).

AC Conversion Type : Average Sensing rrns indication. (97)

Input Impedance : 10MQ

AC Conversions are ac-coupled, true rrns responding

wave input, the basic accuracy is for sine wave at full scale and non-sine wave below
half scale (3V Range just only for sine wave measurement) for non-sine wave accuracy
reference to

/I

less than 100PF

1

"*

. (97R)

Accuracy (97)

,.*,

.

5dgt)

OHz

1

Accuracy (97R)

i

f

(I .3%rdg + 3dgt)

1

~

O~~~t~~~~~~e

**

,

calibrated to the rms value sine

1000V rrns

1

"'Crest Factor

(3)

DC Current

Range

1

300pA 0.1 pV +_(l%rdg + 2dgt) ?(l%rdg + 2dgt) 200mV max.

3mA IpA t(l.2l;rdg + 2dgt) (12%rdg+ 2

30mA 10pA +_(I %rdg + 2dgt) *(I %rdg + 2dgt) 200mV max.

300mA O.lmA +_(I .2%rdg + 2dgt) ?(I .2%rdg + 2dgt) 2V max.

*

20A Range

Overload Protection

:

1.4 to 2 0, add 0.5% to Accuracy
0 to 2.5, add 2% to Accuracy

2

2.5 to 3.0, add 4% to Accuracy.

1

Reso=

:

30 seconds maximum above 10A input.

:

1A (500V) fast blow fuse for pAmA input.
16A

1

Accuracy (97) Accuracy (97R)Ge

I

.

--

(500V) fast for A input.

1

-.

~urden

I

ZY

(4)

AC Current

Range

300pA

3rnA

30rnA

300mA

--

*

Overload Protection
*AC Conversion Type

20A

1

Frequency Response

20A Range

:

30 seconds maximum above 10A.

Resolution

0 I ljA

1 PA

10pA

0 lrnA

10rnA

:

40Hz - 500Hz. (97)
40Hz - 1KHz. (97R)

:

1A (500V) fast blow fuse for pArnA input.

16A

(500V) fast for A input.

:

Average Sensing rrns indication. (97)

AC conversions are ac-coupled , true rrns responding, calibrated to the rrns value sine

wave input

half scale, for non-sine wave accuracy reference to"'

Accuracy

f(1 5%rdg + 3dgt) +(I 5%rdg + 3dgt)

+(2%rdg + 3dgt)
k(2 5%rdg + 5dgt)

,

the basic accuracy is for sine wave at full scale and non-sine wave below

(97)

Accuracy

*(2%rdg + 3dgt)
+(2 5%rdg + 5dgt)

*(97R)

(97R)

I

Voltage Burden

200rnV rnax.

200rnV rnax.

2V rnax

2V rnax
2V rnax

1

I

***

Crest Factor

(5)

Resistance

RsngeRerolution

:

1.4

to 2.0, add 0.5% to Accuracy.

2.0 to 2.5, add 2% to Accuracy.

2.5 to 3.0, add

4%

to Accuracy.

~

Accuracy (97) Accuracy (97R)

Overload

Protection

Open circuit Voltage

:

1.3V

approx.

(6)

Diode Check and Continuity

Range Resolution

*

for 0.4 to 0.8V

Overload protection
Continuity : Built in-buzzer sound when resistance is less than 30R

(7)

Auto Power Off

The meter will automatically shut itself off after approximately 10 minutes after power on
The meter can be turned back on by pushing "Power Reset" key switch.

(8)

Beep Guard

The beep will sound if the test lead is connected to the

is

not in the pAmA (1 0A) positions.

I

:

6OOVrms max.

I

Accuracy

pAmA (10A) input terminal but the rotary function selector

Max.Test

Current

~

ciE%$!iZgd

I

-

-

OPERATION
This instrument has been designed and tested in accordance with IEC Publication

1010,

Safety Require­ments for Electronic Measuring Apparatus and has been supplied in a safe condition. This instruction
manual contains some information and warnings which have to be followed by the user to ensure safe
operation and to retain the instrument in safe condition.

3-1

Preparation and Caution before Measurement

1. Before measurement , warm up for at least 60 seconds.

2.

When the rotary function selector is changed during measurement , be sure do so only after removing the test

leads from the equipment.

3.

If the equipment is used near noise generating equipment , be aware that display may become unstable or
indicate large errors.

4.

Maximum rated voltage to earth for voltage and current measurements terminals is 1000V

AC 1 DC CAT.

II

.

3-2

Voltage Measurements

1. Connect the red test lead to the "VR+t " input terminal and the other (black) test lead to the "COM" terminal.

2.

Set the rotary function to the ACV or DCV position.

3. Connect the test leads to the device to be measured.

a

WARNING : TO AVOID ELECTRICAL SHOCK, HAZARD OR DAMAGE TO METER, DO NOT A ATTEMPT

1000 VOLT DC OR 750 VOLT AC . DO NOT

THIS CASE,

IF

AN ERRONEOUS READING IS

NOTICE

TO MEASURE VOLTAGE THAT MIGHT EXCEED
APPLY MORE THAN
AND EARTH GROUND.

:

UNSTABLE DISPLAY MAY OCCUR ESPECIALLY AT 300mV RANGE, EVEN THOUGH YOU DON'T

PUT TESTED LEADS INTO INPUT TERMINALS. IN

SUSPECTED, SHORT THE

THE ZERO DISPLAY.

1000V DC OR AC RMS BETWEEN THE COMMON INPUT TERMINAL

"VR+t " TERMINAL AND THE "COM" TERMINAL, AND MAKE SURE

3-3

Current Measurement

1.

Connect the red test lead to "vAmA terminal and the other (black) test lead to TOM" terminal, or use the

and "COM" terminal in the 20A range.

2.

Set function selector rotary switch to "FA or "mA or

3.

Measurement of AC current can be performed by pushing the "ACIDC" switch.

4.

Connect the test leads to the circuit to be measured.

3-4

Resistance Measurement

1.

Connect the red test lead to the

2.

Set the rotary function selector to

3.

For correct reading , ensure that the device being tested contains no voltage.

4.

Connect the test leads across the resistor to be measured. In order to ensure the best accuracy in measure­ment of low resistance, short the test leads before measurement and memory the test probe resistance in mind.
This necessary to subtract for the resistance of the test leads themselves.

"VRU

"

terminal and the other (black) test lead to the "COM" terminal

"R"

position to measure the resistance

"A".

"A"

3-5

Continuity Check by Buzzer

1.

Connect the red test lead to the

2.

Set the rotary function selector to

3.

Connect the test leads to the circuit to be measureu . The b:,zzer will sound if the resistance of the circuit
measured is lower than

3-6

Diode Check

1.

Set the rotary switch at

2.

Connect black test lead to "COM" terminal and red lead to

3.

Connect test leads to the diode normally the forward voltage drop of good silicon diode is shown between

to

900V.

If the diode under test is defective

"+t

Reverse check of diode if the diode under test is defective

30R.

-$

"VR+t

"+t

"

position.

"

terminal and the other (black) test lead to the "COM" terminal.

-$"

position.

"Vn+t

"

input terminal.

."000

(short circuit) or "OL" (non-conductance) is displayed.

"000"

or other value are to be displayed.

400V

MAINTENANCE

a

WARNING

4-1

General Maintenance

1.

Repairs or servicing not converted in this manual should only be performed by qualified personal.

2.

Periodically wipe the case with a dry cloth and detergent do not use abrasives or solvents.

4-2

Battery Installation or Replacement

The meter is powered by one

1.

Disconnect the test leads and turn the meter off. Remove the test leads from the front terminals.

2.

Position the meter face down. Remove the three screws from the case bottom.

3.

Lift the end of the case bottom unit it gently unsnaps from the case top at the end nearest the LCD.

4.

Lift the battery from the case top, and carefully disconnect the battery connector leads.

5. Snap the battery connector leads to the terminals of a new battery and reinsert the battery into the case top.

Make sure that the battery leads do not become pinched between the case bottom and case top.

6.

Replace the case top and case bottom. Make sure that all gaskets are properly seated and the two snaps
on the case top are engaged. Reinstall the three screws.

:

TO AVOID ELECTRICAL SHOCK REMOVE TEST LEAD BEFORE OPENING THE COVER.

9V battery. Refer to Figure 2A and use the following procedure to replace the battery:

4-3

Fuse Replacement

Refer to Figure

1.

Perform steps 1 though 3 of the battery replacement procedure.

2.

Lift the circuit board from case top. Do not remove the screws from the circuit bead.

3.

Remove the defective fuse by gentry prying one end of the fuse loose and sliding the fuse out of the fuse holder.

4.

Install a new fuse of same size and rating. Make sure the new fuse is centered in the fuse holder.

5.

Make sure that the case top rotary switch and circuit board switch both are in the
pointing direction of the case top rotary switch and circuit board switch are not at same direction.

6.

Replace the case top and case bottom. Make sure that all gaskets are properly seated and the battery leads do
not become pinched between the case halves, and the two snaps on the case top are engaged. Reinstall the

three screws.

28

and the following procedure to examine or replace the meter's fuse:

OFF

position. Notice the

Battery Replacement

Battery Connector

T

Fuse

Replacement

one handed meter operation

HOW TO

USE

'THE PROBE HOLDER

Wrap the leads around the
holster to store the test probes.

HOW TO USE THE TILT STAND AND HOLSTER

Swing the stand out for easier meter reading.

Swing the upper holder out and hook it over a door

23

HOW TO USE THE

TILT STAND AND HOLSTER

7-

Meter in holster face down.

nn

Hang on a nail at the workbench

24

Copright @ 2007, APPA Tech., Corp. All rights reserved.

APPA TECHNOLOGY CORP.

9F.119-1 Pao-Zong Rd., Shin-Tien,

Taipai, 23115, Taiwan, R.O.C.

P.O.Box. 12-24 Shin-Tien, Taiwan.

Tel

:

886-2-29178820 Fax : [phone]

E-MA1L:info @appatech.com

http:Ilwww.appatech.com

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