IDEAL INDUSTRIES 61-340 Manual de usuario

Form Number TM61340-2 Rev 4 May 2010

IDEAL INDUSTRIES, INC.

TECHNICAL MANUAL

MODEL: 61-340

MODEL: 61-342

Multimeter Service Information

The Service Information provides the following information:

Precautions and safety information

Specifications

Basic maintenance (cleaning, replacing the battery and fuses)

Performance test procedures

Calibration and calibration adjustment procedures

Form Number: TM61340-2

Revision: 4. Date: May 2010

Form Number TM61340-2 Rev 4 May 2010

TABLE OF CONTENTS Page

Introduction

Precautions and Safety Information

Symbols

Safety

Specifications

General Specifications

Measurement Characteristics

Voltage Specifications

Current Specifications

4/5

Resistance, Diode, Continuity, Capacitance Specifications

Frequency, Temperature Specifications

Auto Power Off, Data Hold/Backlight, SELECT, RANGE, REL, Hz/DUTY, MAX/MIN

7/8

Physical and Environment Characteristics

Certifications and Compliances

Required Equipment

Basic Maintenance

Opening the Meter Case

Replacing the Battery

Replacing Fuses

Fuse Replacement

Cleaning

Performance Tests

Testing the Display

Testing the Voltage Function

14/15

Testing the DC Current Functions

15/16

Testing theAC Current Functions

16/17

Testing the Resistance Function

Testing the Capacitance, Diode, Continuity Functions

18/19

Testing the Frequency Function

Testing the DUTY CYCLE Function

Testing the Temperature Function

Calibration

Calibration Adjustment, DCV, ACV DCA and Temperature Functions

22/23

Form Number TM61340-2 Rev 4 May 2010

Page 1

Introduction

Warning

To avoid shock or injury, do not perform the verification tests or calibration procedures described in

the manual unless you are qualified to do so.

The information provided in this document is for the use of qualified personnel only.

Caution

The 61-340 serials contain parts that can be damaged by static discharge.

Follow the standard practices for handling static sensitive devices.

For additional information about IDEAL INDUSTRIES, INC. and its products, and services, visit IDEAL

INDUSTRIES, INC. web site at:

www.idealindustries.com

Precautions and Safety Information

Use the meter only as described in the Service Manual. If you do not do so, the protection provided by the

meter may be impaired. Read the “Safety Information” page before servicing this product.

In this manual, a Warning identifies conditions and actions that pose hazard (s) to the user; a Caution

identifies conditions and actions that may damage the meter or the test instruments.

The Symbols

The symbols used on the meter and in this manual are explained in TableA.

Table A. The Symbols

Risk of electric shock

See instruction card (Caution information)

DC measurement

Equipment protected by double or reinforced

insulation

Low Battery indicator

Earth

AC measurement

Conforms to EU directives

Form Number TM61340-2 Rev 4 May 2010

Page 2

SAFETY

Review the following safety precautions to avoid injury and prevent damage to thisproduct or any

products connected to it. To avoid potential hazards, use the product only as specified.

For operating instructions, see the 61-340 / 61-342 Digital Multimeter Instruction Manual.

CAUTION: These statements identify conditions or practices that could result in damage to the

equipment or other property.

WARNING: These statements identify conditions or practices that could result in personal injury or

loss of life.

Use proper fuse. To avoid fire hazard, use only the fuse type and rating specified for this product.

Do not operate without covers. To avoid personal injury, do not apply any voltage or current to the

product without covers in place.

Do Not Exceed the maximum rated input limits, as marked on the meter.

Electric overload. Never apply a voltage to a connector on the product that is outside the range

specified for that connector.

Avoid electric shock. To avoid injury or loss of life, do not connect or disconnect probes or test leads

while they are connected to a voltage source.

Do not operate in wet/damp conditions. To avoid electric shock, do not operate this product in wet or

damp conditions.

Use great care when you are required to make measurements on live circuits that exceed 50V.

Form Number TM61340-2 Rev 4 May 2010

Page 3

SPECIFICATIONS

All specifications are warranted unless noted typical and apply to the 61-340 & 61-342

Stated accuracies are at 23°C±5°C at less than 75% relative humidity and without the battery indicator

displayed.

General specifications

Characteristics

Description

Display count

3 3/4 digit liquid crystal display, max count 3999

Numeric update rate

2.5 times / sec

Polarity display

Automatic

Over range display

“OL” is displayed

Low battery indicator

is indicated

Automatic power-off time

Automatic power off ≈ 10minutes

Power source

9.0V battery: types- NEDA1604, JIS006P, IEC6F22

for both 61-340 and 61-342

Maximum input voltage

1000Vrms CAT IIIbetween V and COM

Maximum floating voltage

1000Vrms CAT III between any terminal and earth ground

Maximum input current

400mA between µA /mA and COM

Overload protection mA connector

500mA (500V) fast blow fuse.

Overload protection 10A connector

10A (500V) fast blow fuse.

V connector

V, V, Ω, , , , Hz

µA /mA connector

µA, mA, Temp

Temperature Coefficient

0.1×(Spec. Accuracy) per °C, <18°C or >28°C

Battery Life

Alkaline 9V, ≈ 200 hours for 61-340

Alkaline 9V, ≈ 150 hours for 61-342

Form Number TM61340-2 Rev 4 May 2010

Page 4

Measurement Characteristics

Accuracy is ±(% reading + number of digits) at 23°C ± 5°C, less than 75% R.H.

(1) DC Volts (for 61-340 / 61-342)

Range

Resolution

Accuracy

Over voltage

protection

400.0mV

0.1mV

±(0.5% reading + 5 digits)

900VDC or 750VAC

4.000V

1mV

40.00V

10mV

400.0V

100mV

600V

±(1.0% reading + 3 digits)

Input Impedance: 10MΩ

(2) AC Volts (61-340/61-342)

Range

Resolution

Accuracy

Over voltage

protection

400.0mV

0.1mV

±(1.5% + 5)

900VDC or 750VAC

4.000V

1mV

40.00V

10mV

400.0V

100mV

600V

Input Impedance: 10MΩ

AC Conversion Type: 61-340:Average sensing rms indication calibrated to the sine wave input.

61-342: AC conversion is True RMS responding, calibrated to a sinusoidal

waveform

Crest Factor: C.F. = Peak/RMS

For non-sinusoidal waveform, C.F. > 2 add ±1% to accuracy,

Frequency response: 40～400Hz

(3a) DC micro-amp and milli-amps (for 61-340 / 61-342)

Range

Resolution

Accuracy

Input Protection

400.0µA

0.1μA

±(0.5% reading + 5 digits)

500mA, 600V Fast

Blow Fuse

4000µA

1μA

40.00mA

10μA

400.0mA

0.1mA

Overload Protection: mA Input: 500mA, 600V Fast Blow fuse. (61-340 / 61-342)

Form Number TM61340-2 Rev 4 May 2010

Page 5

(3b) DC Current (61-340 / 61-342)

Range

Resolution

Accuracy

Input Protection

4.000A

0.001A

±(1.5% reading + 5 digits)

10A, 500V Fast Blow

Fuse

10.00A*

0.01A

Overload Protection: A Input: 10A, 500V Fast Blow fuse. (61-340 / 61-342)

*Caution: Do not make high current measurements on the 10A scale for longer that 15 seconds. This should be

followed by a 15 minute cool down period. Exceeding 15 seconds may cause damage to the meter and/or the test

leads.

(4a) AC micro-amp and milli-amps Current (61-340 / 61-342)

Range

Resolution

Accuracy

Input Protection

400.0µA

0.1μA

±(1.5% reading + 5 digits) **

40Hz ~400Hz

500mA, 500V Fast

Blow Fuse

4000µA

1μA

40.00mA

10μA

±(2.0% reading + 5 digits) **

40Hz ~400Hz

400.0mA

0.1mA

Overload Protection: μA / mA Input: 500mA, 500V Fast Blow fuse. (61-340 / 61-342)

(4b) AC Current (61-340 / 61-342)

Range

Resolution

Accuracy

Input Protection

4.000A

0.001mA

±(2.5% reading + 5 digits) **

40Hz ~400Hz

10A, 500V Fast Blow

Fuse

10.00A*

0.01mA

Overload Protection: A Input: 10A, 500V Fast Blow fuse.

AC Conversion Type: AC conversions are True RMS responding, calibrated to the sine wave input.

*Caution: Do not make high current measurements on the 10A scale for longer that 15 seconds. This should be

followed by a 15 minute cool down period. Exceeding 15 seconds may cause damage to the meter and/or the test

leads.

** The specified accuracy is for sine wave at full scale and non-sine wave at half scale with crest factor

up to 2.

Form Number TM61340-2 Rev 4 May 2010

Page 6

(5) Resistance (for 61-340 / 61-342)

Range

Resolution

Accuracy

Over voltage

protection

400.0Ω **

0.1Ω

±(1.2% reading + 5 digits)

600Vrms

4.000KΩ

1Ω

±(1.0% reading + 2 digits)

40.00KΩ

10Ω

400.0KΩ

100Ω

4.000MΩ

1KΩ

±(1.2% reading + 2 digits)

40.00MΩ ***

10KΩ

±(2.0% reading + 5 digits)

Open circuit Voltage: 0.44V approx.

** < 5 digit of reading rolling.

*** < 2% of reading rolling.

(6) Diode Check and Continuity (for 61-340 / 61-342)

Range

Resolution

Accuracy

Max. Test

Current

Max. Open

Circuit Voltage

1mV

Not specified

<1mA, approx.

2.5V, approx.

Overload Protection: Not specified

Continuity: Built-in buzzer sounds when resistance is less than approximately 120 Ω with a response

time of approximately 100 msec.

(7) Capacitance (for 61-340 / 61-342)

Range

Resolution

Accuracy

Over voltage

Protection

40.00nF

10pF

±(3.0% reading + 10 digits)

digits10)

600Vrms

400.0nF

100pF

±(3.0% reading + 5 digits)

4.000μF

1nF

40.00μF

10nF

400.0μF

100nF

±(20% reading + 5 digits) ***

4000μF **

10μF

** In this range the reading may be rolling within specification.

*** Specify reading < half full scale of range.

Note: The meter selects the proper range automatically. Each measurement takes about one

second per range. Readings >40.00μF will take ≈ 8 seconds or greater

Form Number TM61340-2 Rev 4 May 2010

Page 7

(8) Frequency (for 61-340 / 61-342)

Range

Resolution

Sensitivity

Accuracy

Overload

protection

10.00Hz

0.01Hz

0.7V rms

Frequency:

(± 0.1% + 3 digit)

600V rms

100.0Hz

0.1Hz

1.000KHz

1Hz

10.00KHz

10Hz

100.0KHz

100Hz

1.000MHz

10KHz

10.000MHz

10KHz

5.0V rms

(9) Temperature: Type K thermocouple (for 61-340 / 61-342)

Range

Resolution

Accuracy

Overload

protection

-50 to 800 ºC

1ºC

±3.0% ± 3 ºC

Not Specified

-58 to1500 ºF

1ºF

±3.0% ± 5 ºF

(10) Auto Power Off (APO)

If the meter is idle for more than ≈ 10 minutes, the meter automatically turns the power off.

(11) Data Hold/Backlight

Pressing this button for less than 2 seconds, the meter enters the data hold mode, the HOLD symbol

appears on the LCD, and the momentary value while pressing the button is displayed on the LCD. Press it

again to exit this mode and the HOLD symbol disappears on the display. As the data hold function, this

button has no effect on the diode and continuity test functions. The secondary function of this button is to

enable and disable the backlight. If you press this button for more than 2 seconds, the backlight will turn on

and when you press it again for more than 2 seconds, the backlight will turn off.

(12) SELECT

There are positions on the rotary switch that have several functions. Pressing the SELECT button will select

the function you want in each position. It allows you to select AC or DC current, resistance, diode, audible

continuity, capacitance, ℃or ℉temperature measurement.

(13) RANGE

When powered on, themeter is in auto range mode. Pressing the RANGE button, you can select the

measurement range you want. The range goes up with each press of the RANGE button until its max, then

returns to the min range. Pressing the RANGE button for more than 2 seconds, the meter will return to auto

range. This button has no effect on frequency, duty cycle, capacitance, diode & continuity tests and

temperature measurement.

Form Number TM61340-2 Rev 4 May 2010

Page 8

(14) REL

Press this button to have the meter enter relative measuring state and the “Δ” symbol will appear on the LCD.

The result of the relative measurement is the difference between the measuring value and the

reference value. The reference value is produced as the same as momentary reading value when

pressing this button. Press it again to exit this state and the “Δ” symbol will disappear on the display. This

button does not any effect on the frequency, diode and continuity test function. Pressing this button for less

than 2 seconds, the meter enters the relative measuring state and the “Δ” symbol appears on the LCD.

(15) Hz/DUTY

Press this button to switch between Hz and Duty Cycle test modes while taking AC voltage orAC current

measurements.

(16) MAX/MIN

Press the MAX/MIN button on the meter to enter maximum value / minimum value record mode and the

“MAX” / “MIN”symbol will appear on the display. The maximum, or minimum, value since pressing the button

will be displayed. Press the MAX/MIN button again for more than 2 seconds to exit this mode and the “MAX”

/ “MIN” symbol will disappear from the display. This button has no effect on the diode / continuitytest function,

capacitance measurement, or frequency measurement.

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