APPA 103N ユーザーマニュアル

103N/105N/106

User Manual / 使用說明書 / 使用说明书

ユーザーマニュアル

Руководство пользователя

The Toughest Multimeters

堅固型萬用表

坚固型万用表

堅牢型マルチメーター

Мультиметр цифровой

RU

EN

TC

SC

JP

LIMITE D

WARRAN TY

YEAR S

103N / 105N / 106 EN

WARNING

1-1 Unpacking and Inspection

1-2 Meter Safety

INTRODUCTION

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.

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. Instruction manual.

4. Protective holster.

5. K Type Temperature Sensor. (106 only)

6. Sensor Adaptor. (106 only)

Terms as Marked on Equipment.

Symbols in this Manual.

ATTENTION — Refer to manual.

DOUBLE INSULATION — Protection Class II.

DANGER — Risk of electric shock

This symbol indicates where cautionary or other

information is found in the manual.

FUSE

Battery

1

103N / 105N / 106 EN

1-3 Front Panel

Refer to Figure 1 and to the following numbered steps to

familiarize yourself with the meter’s front panel controls and

connectors.

1. Digital Display — The digital display has a 4000 counts

LCD readout with 82 segments analog bar graph, auto

polarity, decimal point, “ “ AC, DC, , , RANGE, H,

APO, REL, MAX, MIN, PMAX, PMIN and unit

annunciators. (PMAX, PMIN, REL are 105N / 106 only).

2. Rotary Switch — Select the Function and Range

desired.

3. COM Input Terminal — Ground input connector.

4. °C °F VΩ Hz Input Terminal — Positive input

connector for Volts, Ohms Capacitance, Frequency and

Temperature.

5. mA Input Terminal — Positive input connector for Amp

measurements (up to 400mA).

6. A Input Terminal — Positive input connector for Amp

measurements (up to 10A).

Push Switch Functions ( “MIN/MAX” and “Peak H ” and

“Rel “ switch are for 105N / 106 only)

Push switch functions control the special measurement

modes of the meter. Some special modes can be nested

in other special modes, while some push functions reset

all existing special mode. The following table summarizes

the push functions in each special mode.

HOLD

Active mode

Push Switch Functions

RANGE1 Hz2

BLUE

KEY1

MIN/

MAX

HOLD H PEAK H REL

REL

MIN/MAX HOLD

PEAK HOLD

HZ

2

103N / 105N / 106 EN

Note :

1. BLUE KEY switch and RANGE Switch resets all special

modes other than HZ mode .

2. HZ switch is only used to toggle between frequency

measurement mode and voltage or current measurement

mode, and thus can not be nested in any other special

modes.

3. The bar graph always shows the current value, regardless

of special mode.

7. Light switch — Press the switch to turn on or turn o the

back-light.

8. HZ — If “ HZ” switch is pushed in voltage or current

measurement mode, the meter enters frequency

counter mode with automatic range selection.

Therefore, pressing “RANGE” switch in HZ

mode does not change the frequency range.

However,“RANGE” switch changes the sensitivity

of frequency detection. If the input signal has a

small amplitude, the user shall increase the

sensitivity.

Note : Since HZ mode is treated as a temporary frequency

measurement in voltage or current mode, pressing

“RANGE” switch in HZ mode also changes the full

scale range of the original voltage or current mode

after VAHZ mode is cancelled.

9. PEAK H — The precision of PEAK hold mode

measurement can be enhanced by calibration. Calibration

for PEAK hold mode is invoked by pressing “PEAK H ”

switch for more than 2 seconds until the “caL” is displayed.

Pressing the “Peak H ” switch to toggle between PMAX

and PMIN.Pressing “Peak H ” switch and held for longer

than one second to release the peak hold mode.

10. Range Switch, (Manual Range) — “Range” switch is

pressed to select manual ranging and to change ranges.

When “Range” switch is pressed on “RANGE” annunciator

on the LCD appears.

Press “RANGE” switch to select appropriate range to be

used.

Press “RANGE” switch and hold for 2 seconds to return

to Autoranging. In “ HZ” mode “RANGE” is not used

to change the full scale frequency range, but change the

sensitivity of frequency measurement.

11. Blue Switch — Press the switch to measure AC Voltage

/ Current or DC Voltage / Current in the voltage / Current

mode, or to measure Resistance or continuity or diode in

Ω / / mode or to measure Frequency or RPM in RPM

in Hz / PRM mode.

3

103N / 105N / 106 EN

12. MIN MAX — The meter displays the maximum or

minimum value of the input in MAX / MIN mode. When

“MIN MAX “ switch is pressed for the rst time, the meter

displays the maximum value. When “MIN MAX” switch

is pressed again, the meter displays the minimum value.

When “MIN MAX” switch is pressed for the third time,

the meter displays current input value and the “MAX”

“MIN” annunciator are blink. The meter returns to normal

operation if “MIN MAX” switch is pressed and held for

longer than one second. Pressing HOLD in MAX/MIN

mode makes the meter stop updating the maximum or

the minimum value.

13. REL — In REL mode, the LCD panel displays

D(current) - D(relative), where D(relative) is the last

value before “REL ” switch is pressed, and D(current)

is the current value. If “REL ” switch is pressed again

in REL mode, the meter displays the reference value and

the “REL” annunciator is blink. The meter returns to

normal operation if “REL ” switch is pressed and held

for longer than one second. Pressing “HOLD H ” switch

in REL mode makes the meter stop updating the LCD

panel.REL with MIN MAX — MAX / MIN mode can be

nested in REL mode. The “MIN MAX’ meter displays the

maximum or the minimum value relative to the reference

when “MIN MAX” is pressed in REL mode.Before release

the REL function, the MAX/MIN function is needed to

release rst.

14. HOLD — HOLD mode makes the meter stop updating

the LCD panel. This mode can be nested in most of the

special modes. Enabling HOLD function in automatic

mode makes the meter switch to manual mode, but the

full scale range remains the same. HOLD function can

be released by changing the measurement mode,

pressing “RANGE” or “BLUE KEY” or push HOLD again.

When HOLD mode is nested in Peak H or MIN / MAX

or REL mode to release the Peak H or MIN / MAX or

REL function is needed to release HOLD function rst.

4

103N / 105N / 106 EN

2-1 General Specications

SPECIFICATIONS

Display : The Liquid Crystal Display (LCD) with a maximum

reading of 4000 and 82 segments bar graph.

Polarity Indication : Automatic, positive implied, negative

indicated.

Overrange Indication : “OL” or “-OL”.

Low Battery Indication : “ “ is displayed when the battery

voltage drops below operating voltage.

Sampling : 2 times/sec for digit. 12 times/sec for analog

bargraph.

Auto Power O : Approx 30 minutes.

Operating Ambient : 0°C to 30°C (≤ 80%R.H),

30°C to 40°C (≤ 75%R.H),

40°C to 50°C (≤ 45%R.H).

Storage Temperature : -20°C to 60°C , 0 to 80% R.H.

when battery removed from meter.

Temperature Coecient :

0.15 x (Spec.Acc’y) / °C , <18°C or > 28°C.

Power Requirements :

IEC LR03, AM4 or AAA size 1.5V x 2. (103N / 105N)

Standard 9V battery NEDA 1604, IEC6F22, JIS 006P.(106N)

Battery Life : Alkaline 500 hours. (103N / 105N),

Alkaline 300 hours. (106)

Dimensions (W x H x D) : 90mm x 200mm x 42mm ,

without holster. 100mm x 212mm x 55mm , with holster.

5

103N / 105N / 106 EN

2-2 Environmental Conditions

2-3 Electrical Specications

(1) DC Volts

Indoor use.

Maximum Altitude : 2000 Meter.

Pollution Degree : 2

Installation Category : EN61010-1,EN61010-2-033, 1000V

Cat.II, 600V Cat.III.

Accuracy is ± (% reading + number of digits) at 23°C ± 5°C ,

less than 80% R.H.

Input Impedance : 10MΩ . (over 1000MΩ in 400mV range).

The circuits not connected to mains.

The circuits directly connected to Low-voltage installation.

The building installation.

The source of the Low-voltage installation.

Application FieldCAT

II

III

IV

I

Range Resolution

Accuracy

103N 105N / 106

±(0.3%reading +

2digits)

400mV 100μV

40V 10mV

4V 1mV

400V 100mV

1000V 1V

±(0.3%reading +

2digits)

±(0.1%reading +

2digits)

±(0.4%reading +

2digits)

±(0.25%reading +

2digits)

Over voltage

protection

1000V rms

(2) AC Volts

Range Resolution

Accuracy

103N 105N / 106

±(2.0%reading +

8digits)*

400mV 0.1mV

40V 10mV

4V 1mV

400V 100mV

750V 1V

±(2.0%reading +

8digits)*

***

±(1.5%reading +

5digits)

40Hz to 60Hz

±(1.0%reading +

5digits)

60Hz to 1KHz

±(1.3%reading +

5digits)**

±(1.5%reading +

5digits)

40Hz to 60Hz

±(1.3%reading +

5digits)

60Hz to 1KHz

Over voltage

protection

1000V rms

Accessories : Protective Holster , battery, instruction

manual, test leads.

6

103N / 105N / 106 EN

(3) DC Current

AC Conversion Type :

103N / 105N : Average sensing rms indication.

106 : AC conversions are ac-coupled, true rms responding,

calibrated to the rms value sine wave input.

The specied accuracy is for since wave at full scale and

non-sine wave at half scale below 500Hz with crest factor

up to 2.

Input impedance : 10MΩ // less than 100PF.

* Frequency Response : 50Hz to 60Hz.

** Frequency Response : 40Hz to 300Hz.

*** Frequency Response : 40Hz to 500Hz for 4V Range.

AC Conversion Type : AC conversions are average

sensing , calibrated to the rms value sine wave input.

Overload Protection :

1A , 600V IR 10KA fuse (Bussmann BBS-1 or equivaknt) for

mA input. (Size 10.3mm x 34.9mm)

15A , 600V IR 100KA fuse (Bussman KTK 15 or equivalent)

for A input. (Size 10.3mm x 38.1mm)

Range Resolution

Accuracy

103N 105N / 106

±(0.6%reading +

2digits)

40mA 10μA 300mV max

10A 10mA 3V max

400mA 0.1mA 3V max

±(0.4%reading +

2digits)

±(0.7%reading +

2digits)

±(1.2%reading +

3digits)

±(0.5%reading +

2digits)

±(1.0%reading +

3digits)

Voltage

Burden

(4) AC Current

Range Resolution

Accuracy

103N 105N / 106

±(1.5%reading +

5digits)

40mA 1μA 300mV max

10A 10mA 3V max

400mA 0.1mA 3V max

±(1.5%reading +

5digits)

±(2.5%reading +

5digits)

±(2.0%reading +

5digits)

Voltage

Burden

Frequency Response : 40Hz to 1KHz.

AC Conversion Type :

103N / 105N : Average sensing rms indication.

106 : AC conversions are ac-coupled, true rms responding,

calibrated to the rms value sine wave input.

The specied accuracy is for since wave at full scale and

non-sine wave at half scale below

500Hz with crest factor up to 2.

7

103N / 105N / 106 EN

Overload Protection : 1A , 600V IR 10KA fuse (Bussmann

BBS-1 or equivaknt) for mA input. (Size 10.3mm x 34.9mm)

15A , 600V IR 100KA fuse (Bussman KTK 15 or equivalent)

for A input. (Size 10.3mm x 38.1mm)

AC Conversion Type : AC conversions are average

sensing, calibrated to the rms value sine wave input.

(5) Resistance

Range Resolution

Accuracy

103N 105N / 106

±(0.7%reading +

3digits)

±(0.7%reading +

3digits)

±(1.5%reading +

5digits)

±(0.6%reading +

3digits)

±(1.5%reading +

5digits)

400Ω 0.1Ω

40KΩ 10Ω

4KΩ 1Ω

400KΩ 100Ω

4MΩ

40MΩ

1KΩ

10KΩ

±(0.7%reading +

3digits)

±(0.6%reading

+3digits)

±(0.4%reading +

2digits)

Over voltage

protection

600V rms

Open circuit Voltage : -1.3V approx.

(6) Diode Check and Continuity

Range Resolution Accuracy Max. Test Current

Current

Max. Open Circuit

Circuit Voltage

±(1.5%reading +

5digits)*

1mV 1.5mA 3V

* For 0.4V — 0.8V.

Overload Protection : 600V rms max.

Continuity : The internal sounder operates when resistance

is less than 30Ω approximately.

(7) Frequency / RPM

Range Resolution Accuracy

Sensitivity

4.0KHz/40KRPM

40KHz/400KRPM

400KHz/4MRPM

4MHz/40MRPM 1KHz/30KRPM 300mV rms

40MHz/

400MRPM

10KHz/

300KRPM 1V rms

* 400MHz/

4000MRPM

100KHz/

3MRPM * *

1Hz/30RPM

10Hz/300RPM

100Hz/3KRPM

150mV rms ≥ 20Hz

1.5V rms ≤ 20Hz Frequency :

±(0.01%reading

+ 1digit)

RPM :

±(0.01%reading

+ 10digits)

600V rms

Over voltage

protection

8

103N / 105N / 106 EN

(8) Capacitance

(9) Temperature (°C )

Range

Temperature

Resolution Accuracy

Accuracy

Overload

Protection

Overload Protection

4nF

-20°C — 0°C

1pF

±(2%reading + 4°C )

40nF

1°C — 100°C

10pF

±(2%reading + 4°C )

400nF

1°C — 100°C

100pF

±(2%reading + 3°C )

4μF

1°C — 100°C

1nF

±(3%reading + 2°C )

40μF 10nF

400μF 100nF

*4mF 1μF

*40mF 10μF

±(3%reading +

10digits)

±(2%reading +

8digits)

600V rms

** ±(5%reading +

20digits)

* In these two ranges the reading maybe rolling within

specication.

** Specify reading < half of full scale range .

For 106 only.

* For 105N / 106 only.

* * The spec is not guaranty.

9

103N / 105N / 106 EN

(11) PEAK HOLD

Function FunctionRange Range

Accuracy Accuracy

400mV Unspecied 40mA 3*

40mA 3*

400mA 3*

10A 3*

Unspecied

±(1.5%reading

+300digits) 2*

±(3%reading

+60digits)

±(1.5%reading

+60digits)

±(3%reading

+60digits)

±(1.5%reading

+60digits)

±(1.5%reading

+300digits) 2*

±(1.5%reading

+60digits)

±(1.5%reading

+60digits)

400mV

40V

400V

1000V

750V

4V

DCV DCV

ACV ACV

Note :

1. With zero calibrated before measurement.

2* 4V range species readings above 10% of full scale of range.

3* Amp ranges specify reading <90% of full scale of range.

4. In the noise generating eld, may aect intervals.

(10) Temperature (°F )

Temperature Accuracy Overload Protection

-4°F — 32°F ±(2%reading + 8°F)

33°F — 212°F ±(1%reading + 6°F)

213°F — 932°F ±(2%reading + 6°F)

933°F — 1472°F ±(3%reading + 4°F)

600V rms

For 106 only.

10

103N / 105N / 106 EN

(12) Auto Power O (APO)

(13) Disable Auto Power O

(14) RS232

The APO sign on the LCD panel indicates the meter is

working in the Auto Power O mode. If the meter idles

for more than 30 minutes, the meter automatically turns

the power o. When this happens, the state (non-logic

measurement) of the meter is saved, the meter can be

turned back on by pushing any key switch, except back

light switch, or changing the rotary switch. If the meter

is Re-Powered on by pushing key switch, the LCD

displays the saved state when meter auto power o

itself, pushing Hold key switch to disable the hold state.

The meter will give periodic alarm in 15 seconds before

automatically turns power o by itself, any key press or

rotary change reset Auto-Power-O.

In order to disable auto power o function, power on

the meter with pressing anyone of switches, except

HOLD switch, back light switch or BLUE switch (for

function change) is pressed down.

Sent a single command string “H” ( Hex code “48” )

to the multimeter or shine the ashlight on the RS232

socket of the meter to enable or disable the RS232.

When enable the RS232 the LCD display shows the

RS232 annunciator.

The serial data is send from RS232 cable twice every

A/D conversion cycle. The data format complies with

JIS 7BIT transmission code with a baud rate of 2400.

The user can use RS232 interface to read the data.

A single dada packet includes a start bit (always 0), 7

data bits, an odd parity check bit, and a stop bit (always

1). The following gure shows

01

LSB M SB

-12V

12V

11

103N / 105N / 106 EN

One data block consists of 11 packets, or 110 bits. The

following gure shows the format of a data block. The

range packet indicates the full scale range of the meter.

Digit 3 through digit 0 is just the digits on the LCD panel.

The function packet indicates the measurement mode of

the meter. Status, option 1 and option 2 gives the status of

the meter. CR and LF are delimiters used to separate the

blocks.

The meter always outputs the current input value to the

serial port. Each block is repeated twice in one conversion

cycle.

The detailed data format of each packet is listed below.

This packet indicates the measurement mode of the meter.

The following table summaizes the transmitted code for

each mode.

01 01 01

01 01

CR LF

status option1o ption2

ranged igit3d igit2

digit1 digit0 function

14-1 FUNCTION

Code Measurement Mode

0111011

0111101

0111001

0111111

0110011

0110101

0110001

0110010

0110110

0110100

Voltage

μA Current

mA Current

A Current

Ω

Continuity

Diode

Frequency / RPM1

Capacitance

Temperature2

12

103N / 105N / 106 EN

Note :

1. The Judge bit in the Status packet determines whether it

is frequency mode or RPM mode.

2. The Judge bit in the Status packet determines whether

the unit is Celsius or Fahrenheit.

This packet indicates the full scale range of the meter.

When the meter operates in continuity mode, diode mode,

or current (A) mode, this packet is always 0110000 since the

full scale range in these modes are xed. The following table

lists the code for each range in each measurement mode.

Digit 3 is the most signicant digit on the LCD panel, and

digit 0 is the least signicant digit. When the LCD panel

shows OL, the serial port outputs 4000.

14-2 RANGE

14-3 DIGIT 3 — DIGIT 0

Digit

Code V mA ΩFrequency RPM Capacitance

Code

0

1

2

3

4

5

6

7

8

9

0110000

0110001

0110010

0110011

0110100

0110101

0110110

0110111

400.0mV

4.000V

40.00V

400.0V

4000V

4.000nF

40.00nF

400.0nF

4.000μF

40.00μF

400.0μF

4.000mF

40.00mF

400.0Ω

4.000KΩ

40.00KΩ

400.0KΩ

4.000MΩ

40.00MΩ

4.000KHz

40.00KHz

400.0KHz

4.000MHz

40.00MHz

400.0MHz

40.00KRPM

400.0KRPM

4.000MRPM

40.00MRPM

400.0MRPM

4000MRPM

40.00mA

400.0mA

0110000

0110001

0110010

0110011

0110100

0110101

0110110

0110111

0111000

0111001

13

103N / 105N / 106 EN

The format of this packet is shown below. The Judge eld is

meaningful only when the Function packet indicates

Frequency / RPM mode .

In Frequency / RPM mode, judge is 0 if the meter operates

in Frequency mode; otherwise, it is 1. Sign eld indicates

whether the minus sign on the LCD panel is on or o. BATT

eld is 1 if battery low condition is true. OL indicates input

overow.

This packet contains information on special measurement

modes. The format of this packet is shown below. The three

non-constant elds is set to one when the meter operates in

the corresponding special modes.

This packet contains information on the operation mode of

the meter. The format is shown below. The DC eld indicates

that the meter operates in DC measurement mode, either

voltage or current. The AC eld indicates that the meter

operates in AC measurement mode. The AUTO eld is set

to 1 if the meter operates in automatic mode, and is set to

0 when the meter operates in manual mode. The APO eld

indicates whether auto power o function is enabled or not.

Carriage return. The transmitted code is 0001101.

Line feed. The transmitted code is 0001010.

14-4 STATUS

14-5 OPTION 1

14-6 OPTION 2

14-7 CR

14-8 LF

0

Bit 6

1

Bit 5

1

Bit 4

Judge

PMAX

DC

Bit 3

Sign

PMIX

AC

Bit 2

BATT

0

AUTO

Bit 1

OL

VAHZ

APO

Bit 0

14

103N / 105N / 106 EN

The sensitivity in the Hz mode is 1/10 of full scale range.

The accuracy is same as Frequency mode. The measuring

frequency is from 40Hz up to 1KHz.

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.

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 may become unstable or indicate large errors.

4. Maximum rated voltage to earth for voltage and current

measurements terminals is 1000V CAT.II, 600V CAT.III .

1. Connect the red test lead to the “ VΩHz” input terminal

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

2. Set the rotary function to the VA position.

3. Measurement of AC voltage can be performed by pushing

the “BLUE” key switch.

TO AVIOD ELECTRICAL SHOCK, HAZARD OR

DAMAGE TO METER, DO NOT A ATTEMPT TO

MEASURE VOLTAGE THAT MIGHT EXCEED 1000V

ms. DO NOT APPLY MORE THAN 1000V rms

BETWEEN THE COMMON INPUT TERMINAL AND

EARTH GROUND.

(15) Hz Sensitivity

OPERATION

3-1 Preparation and Caution before Measurement

3-2 Voltage Measurements

WARNING

15

103N / 105N / 106 EN

1. Connect the red test lead to “mA” terminal and the other

(black) test lead to “COM” terminal, or use the “A” and

“COM” terminal in the 10A range.

2. Set function selector rotary switch to “ mA ” or “ A ” .

3. Measurement of AC current can be performed by pushing

the “BLUE” switch.

4. Connect the test leads to the circuit to be measured.

1. Connect the red test lead to the “ VΩHz” terminal and

the other (black) test lead to the “COM” terminal.

2. Set the rotary function selector to “Ω ” position to

measure the resistance.

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 memorize the test probe resistance in mind. This is

necessary to subtract for the resistance of the test leads

themselves.

1. Connect the red test lead to the “ VΩHz” terminal and

the other (black) test lead to the “COM” terminal.

2. Set the rotary function selector to “Ω ” position.

3. Connect the test leads to the circuit to be measured. The

internal sounder operates if the resistance of the circuit

measured is lower than 30Ω approximately.

3-3 Current Measurements

3-4 Resistance Measurement

3-5 Continuity Check by Buzzer

NOTICE

UNSTABLE DISPLAY MAY OCCUR ESPECIALLY AT

400mV RANGE, EVEN THOUGH YOU DON’T PUT

TESTED LEADS INTO INPUT TERMINALS. IN THIS

CASE, IF AN ERRONEOUS READING IS SUSPECTED,

SHORT THE “ VΩHz” TERMINAL AND THE “COM”

TERMINAL, AND MAKE SURE THE ZERO DISPLAY.

16

103N / 105N / 106 EN

1. Set the rotary switch at “Ω ” position.

2. Connect black test lead to “COM” terminal and red lead to

“ VΩHz ” input terminal.

3. Connect test leads to the diode normally the forward

voltage drop of good silicon diode is shown between.

400V to 0.900V.

If the diode under test is defective. “0.000” (short circuit)

or “OL” (non-conductance) is displayed. Reverse check

of diode if the diode under test is defective “0.000” or

other value are to be displayed.

1. Connect the red test lead to the “ VΩHz ” terminal and

the other (black) test lead to the “COM” terminal.

2. Set the rotary function selector to “Hz RPM” position to

measure the frequency or RPM with the blue switch.

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

1. Connect the red test lead to the “ VΩHz” terminal and

the other (black) test lead to the “COM” terminal.

2. Set the rotary function selector to “ ” position to measure

capacitance.

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

4. In order to ensure the best accuracy in measurement of

low capacitance, open the test leads before measurement

and memorize the test probe capacitance in mind. This is

necessary to subtract for the capacitance of the test

probe themselves or use the relative mode for 105N.

3-6 Diode Check

3-7 Hz / RPM Measurements

3-8 Capacitance Measurement

17

103N / 105N / 106 EN

WARNING :

TO AVOID ELECTRICAL SHOCK REMOVE TEST

LEAD BEFORE OPENING THE COVER.

MAINTENANCE

1. Do not attempt to repair this Tester. It contains no

user-serviceable parts. Repair or serving should only be

performed by qualied personnel.

2. Periodically wipe the case with a dry cloth and detergent

do not use abrasives or solvents.

The meter is powered by 1.5V x 2 battery. Refer to Figure 2

and use the following procedure to replace the battery:

1. Disconnect the test leads and turn the meter o. Remove

the test leads from the front terminals.

2. Position the meter face down. Remove the screws from

the battery case bottom.

3. Lift the end of the battery case bottom until it gently

unsnaps from the case bottom.

4. Lift the batteries from the battery 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 battery case.

Refer to Figure 3 and the following procedure to examine or

replace the meter’s fuse:

1. Perform steps 1 though 3 of the battery replacement

procedure.

2. Than remove the two screws from the case bottom and

lift the case bottom until it gently unsnaps from the case top.

3. Remove the defective fuse by gently 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. Replace the case top and case bottom and battery case

bottom. Make sure that the battery leads do not be

come pinched between the case halves. Reinstall the

three screws.

4-1 Maintenance and Cleaning

4-2 Battery Installation or Replacement

4-3 Fuse Replacement

18

103N / 105N / 106 EN

Figure 2. Battery Replacement.

Battery

Cover

Battery Box

1.5V

Battery

Screw

Figure 3. Fuse Replacement

Top Case

Fuse 1

15A (600V)

1A (600V)

Screw

Battery Cover

Bottom

Case

19

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APPA 103N ユーザーマニュアル

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