Mastech MS8361D Manuale utente

MS8361D

CAT III

Contents

1. Safety standards

1.1 FCC Statement

1.2 Using the meter

1.3 Safety standards

1.4 Maintenance

2. Description

2.1 Part name

2.2 Buttons/ Input jack description

2.3 Auto power off function

2.4 LCD Display

3. Technical specifications

3.1 General specifications

3.2 Technical indicators

3.2.1 Dc voltage

3.2.2 Ac voltage

3.2.3 Resistance

3.2.4 Diode test

3.2.5 Continuity

3.2.6 DC current

3.2.7 AC current

3.2.8 hFE transistor gain

3.2.9 Capactance

3.2.10 Frequency

3.2.10.1 In V mode

3.2.10.2 In ηA,mA,A mode

3.2.10.3 In Hz mode

3.2.10.4 Duty ratio

4. Operating instructions

4.1 AC/DC Voltage measurement

4.2 AC/DC Current measurement

4.3 Resistance measurement

4.4 Continuity measurement

4.5 Diode test

4.6 Capacitance measurement

4.7 Transistor measurement

4.8 Frequency measurement

4.9 Non-contact voltage(NCV) measurement

4.10 Wireless operation

5. Maintenance

5.1 General Maintenance

5.2 Replacing the battery

5.3 Replacing the fuse

5.4 Replacing the Probe

6. Accessories

Contents

1. Safety standards

The multimeter meets the following safety standards:

EN/UL/CSASTD C22.2 NO. 61010-1,61010-2-030,

61010-2-033for electronic testing instruments. This meter

meets CAT III 600V installations and a pollution degree of 2.

• The protection provided by the meter can only be ensured if all

safety procedures are strictly followed.

• The safety symbols on the meter are to advise of potential

dangerous situations. Caution is required when measuring

close to the meter’s safety limits.

• Never exceed the protection limit values indicated in the

specifications for each range of measurement.

The special attention should be paid when using the meter

because the improper usage may cause electric shock and

damage the meter. The safety measures in common safety

regulations and operating instruction should be complied

with when using. In order to make fully use of its functions

and ensure safe operations please comply with the usage in

this section carefully.

WARNING

1.1 FCC Statement

This device complies with part 15 of the FCC Rules.

Operation is subject to the following two conditions: (1) This

device may not cause harmful interference, and (2) this

device must accept any interference received, including

interference that may cause undesired operation.

This equipment has been tested and found to comply with the

limits for a Class B digital device, pursuant to part 15 of the

FCC Rules. These limits are designed to provide reasonable

protection against harmful interference in a residential

installation. This equipment generates, uses and can radiate

radio frequency energy and, if not installed and used in

accordance with the instructions, may cause harmful

interference to radio communications. However, there is no

guarantee that interference will not occur in a particular

installation. If this equipment does cause harmful interference

to radio or television reception, which can be determined by

turning the equipment off and on, the user is encouraged

to try to correct the interference by one or more of the

following measures:

- Reorient or relocate the receiving antenna.

- Increase the separation between the equipment and receiver.

- Connect the equipment into an outlet on a circuit different

from that to which the receiver is connected.

- Consult the dealer or an experienced radio/TV technician

for help.

Caution:

Any changes or modifications not expressly approved by the

party responsible for compliance could void the user's

authority to operate the equipment.

1.3 Safety standards

AC & DC (Both direct and Alternating Current)

Important safety information.

High voltage with danger.

Ground.

Double Insulation (Class II safety equipment).

Fuse must be replaced as per the specification herein.

AC (Alternating Current)

DC (Direct Current)

Conforms to UL STD. 61010-1, 61010-2-030,

61010-2-033; Certified to CSA STD C22.2 NO.

61010-1, 61010-2-030,61010-2-033

Complies with European (EU) safety standards

CAT III: MEASUREMENT CATEGORY III is applicable to

test and measuring circuits connected to the distribution

part of the building's low-voltage MAINS installation.

No. Description No. Description

LCD display

Hold/BKL

Frequency/Duty-cycle

Wireless

Rotary switch

Input jack (V,R,D,F,C)

Common jack

Input jack (hFE,μA,mA)

Input jack (10A)

Function button

Range button

Relative button

Voltage alert light

Voltage alert area

-The multimeter is a portable, hand-held yet professional

meter that features true RMS measurement display, AC/

DC current, AC/DC voltage, Frequency, Capacitance,

Resistance, Communication, non-contact voltage tests

and hEF tests. This meter is easy to use even with one

hand, suitable for professional user or amateurs, and

ideal for school or home use.

- Both auto and manual range.

-Display hold.

-True RMS for AC voltage/ current measurements.

-Relative measurement.

-Automatic Power OFF.

FUNC button:

• Press “FUNC” to switch between AC/DC or between

function in a rotary switch position.

HOLD button:

• Press “HOLD” to keep the current reading on screen.

“H” symbol will appear on the display.

• Press “HOLD” again to release th hold.

button:

• Press “ ” to turn on the backlight. the backlight will

turn off automatically after 15 seconds

RANGE button:

• Press “RANGE”to switch to manual range.Each press

of the button will switch to the next highest range, until

reaching the highest range where it will switch to the

lowest range.

• Hold “RANGE” to return to auto range.

button:

• With the rotary switch in any position other than OFF,

press to enable the Wireless communication function

of the meter. Open the app (iOS or Android) on the

mobile device to be used and search for the multimeter

and establish a connection. Once connected, the app

will mirror the display of the meter and show any

measurement being performed. Press again to

disconnect the meter from the mobile device.

Hz/DUTY button:

• Press “Hz/DUTY” to start the frequency counter.

• Press “Hz/DUTY” again to enter duty-cycle mode.

• Press “Hz/DUTY” again to exit the frequency counter

mode.

REL button:

• Press “REL” to enter and exit the relative measurement

mode.

2.3 Auto power off function

• After 15 minutes of non-use the meter will automatica-

lly turn itself off.

• To turn the meter back on, press “FUNC”.

• To deactivate the auto power off function, hold down

“FUNC” when turning on the meter. will no longer be

displayed.

2.2 Buttons/Input jack description

2.4 LCD Display

6 7 8 9 10 11 12

No. Description

DC (direct current)

AC (alternating current)

Polarity indicator

Wireless indicator

Auto power off indicator

Auto-range

Transistor test mode

Relative measurement

No. Description

Data hold

True root mean square

Diode measurement

Continuity buzzer

Low battery indicator

Unsafe voltage warning

Measurement units

Main display

07 0 8

Symbol Description

V,mV V:

mV:

Volts. The unit of voltage.

Millivolt. 1x10 or 0.001 volts.

A,mA,µA

mA:

µA:

Amperes (amps). The unit of current.

Milliamp. 1x10 or 0.001 amperes.

Microamp. 1x10 or 0.00001 amperes.

Ω Ω Ω,K ,M

Ω:

kΩ:

MΩ:

Ohm. The unit of resistance.

Kilohm. 1x10 or 1000 ohms.

Megohm. 1x10 or 1,000,000 ohms.

Hz,KHz,MHz

Hz:

KHz:

MHz:

Hertz. The unit of frequency.

Kilohertz. 1x10 or 1000 hertz.

Milohertz. 1x10 or 1,000,000 hertz.

Hz,KHz,MHz

mF:

μF:

nF:

Farad. The unit of capacitance.

Millifarad. 1x10 or 0.001 farads.

Microfarad. 1x10 or 0.000001 farads.

Nanofarad. 1x10 or 0.000000001 farads.

-3

-6

-3

-6

-9

3. Technical specifications

3.1 General specifications

Safety Rating: CAT III 600V, pollution degree of 2

Operating Altitude: <2000m

Operating Temperature/Humidity: 0~40℃, <80% RH

Storage Temperature/Humidity: -10~60℃, <70% RH,

remove battery

Max. Input between terminals and earth ground: 600V DC

or AC True-RMS

Fuse Protection: A/mA ranges: FF 400mA H 1000V

10A range: FF 10A H 600V

Display: 3³⁄4 digit LCD display

Overload Indication: Display shows “OL”

Low Battery Indication: When battery voltage drops below

normal operating voltage, “ ” is

shown on the display

Polarity Indication: Display automatically displays “-”

Power Supply: DC 9V (NEDA 1604, 6F22 or 006P)

Wireless Communication Distance:

Indoor/Outdoor: <10m

Supported App OS: iOS: 7.0 and above

Android: 4.3 and above

Size(LxWxH): Approx. 92x188x50mm

Weight: Approx. 432g

Accurancy: ±( % reading + digits ) at 18℃~28℃ with a

relative humidity of <80%; guaranteed for a period of

one year.

3.2 Technical indicators

3.2.1 Dc voltage

400mV

4.0V

40V

400V

600V DC or AC True-RMS.

600V

±( 1% of reading + 5 digits )

- Max. input voltage: 600V DC or AC True-RMS.

400mV

4.0V

40V

400V

3.2.2 Ac voltage

±( 1.0% of reading + 8 digits )

09 1 0

600V ±( 1.2% of reading + 8 digits )

- Input impedance: 10M

- Max. input voltage: 600V DC or AC True-RMS.

- Frequency reponse: 40~400Hz

- Response: True-RMS

3.2.3 Resistance

400Ω

4KΩ

40KΩ

400KΩ

4MΩ

40MΩ

±( 0.8% of reading + 3 digits )

- Overload protection: 600 DC or AC True-RMS

3.2.4 Diode test

1mV2.7V

Displays shows forward

voltage drop

- Overload protection: 600V DC or AC True-RMS

3.2.5 Continuity

Open circuit

voltage~1 V

- Overload protection: 600V DC or AC True-RMS

3.2.6 DC current

400μA

4000μA

40mA

400mA

10A

0.01mA

0.1mA

±( 1.0% of reading + 10 digits )

- Overload protection:

mA jack: FF 400mA H 1000V

10A jack: FF 10A H 600V

- Max input current:

mA jack: 400mA

10A jack: 10A

3.2.7 AC current

400μA

4000μA

40mA

400mA

10A

0.01mA

0.1mA

±( 1.5% of reading + 5 digits )

±( 3.0% of reading + 5 digits )

- Overload protection:

mA jack: FF 400mA H 1000V

10A jack: FF 10A H 600V

- Frequency response: 40~400Hz, true RMS response

- Max input current: mA jack: 400mA DC or AC rms

10A jack: 10A DC or AC rms

- When measuring current exceeding 2A, do not measure

for longer than 2 minutes continuously. Wait 10 minutes

11 1 2

to continue measurement.

3.2.8 hFE transistor gain

hFE

- Base current: approx. 5µA

- Vce: approx. 1.6V

- Protection: FF 400mA H 1000V

Description

Displays approx. hFE transistor

gain (0-1000)

3.2.9 Capactance

9.999nF

99.99nF

999.9nF

9.999μF

99.99μF

999.9μF

9.999mF

99.99mF

±( 5.0% of reading + 5 digits )

±( 4.0% of reading + 5 digits )

- Overload protection: 600 DC or AC True-RMS

3.2.10 Frequency

3.2.10.1 In V mode

- Input voltage range: >3V AC (True-RMS)

( higher input voltage at higher frequency )

- Input impedance: 10MΩ

- Max.input voltage: 600V AC (True-RMS)

3.2.10.2 In μA,mA,A mode

99.99Hz

999.9Hz

>1KHz

-Input current range:

μA range:> 100μA AC(True-RMS)

mA range: > 10mA AC (True-RMS)

A range: > 5A AC(True-RMS)

( higher input current at higher frequency )

- Max.input current:

μA range: 400mA AC(True-RMS)

mA range: 400mA AC(True-RMS)

A range: 10 A AC(True-RMS)

99.99Hz

999.9Hz

9.999KHz

>10KHz

3.2.10.3 In Hz mode

9.999Hz

99.99Hz

9.999KHz

999.9Hz

99.99KHz

999.9KHz

0.001Hz

0.1kHz

±( 0.5% of reading + 3 digits )

13 1 4

9.999MHz 0.001mHz

- Input voltage range: >2V AC (True-RMS)

( higher input voltage at higher frequency )

- Max.input voltage: 600V AC (True-RMS)

3.2.10.4 Duty ratio

0.1%-99.9%

±3.0%

• By μA, mA, A range:

- Input current range:

μA range: > 100μA AC (True-RMS)

mA range: > 10mA AC (True-RMS)

A range: > 5A AC (True-RMS)

( higher input current at higher frequency )

- Max.input current:

μA range: 400mA AC (True-RMS)

mA range: 400mA AC (True-RMS)

A range: 10 A AC (True-RMS)

• By V range:

- Input voltage range: > 3V AC (True-RMS)

( higher input voltage at higher frequency )

- Input impedance: 10MΩ

- Max.input voltage: 600V AC (True-RMS)

4. Operating instructions

4.1 AC/DC Voltage measurement

• Set the rotary switch to the AC or DC voltage position.

• Connect the red test lead to the input jack and the

black lead to the COM jack.

• Connect the leads to the circuit under test and read the

measurement on the display. Observe polarity for DC

measurement. In manual mode, if “OL” is display it

means the measurement has exceeded the current

range. Increase the selected range and measure again.

WARNING

Do not measure voltages higher than 600V DC or AC rms to

prevent damage to the meter or personal injury.

WARNING

Never measure open-circuit voltages exceeding 600V between

the input terminals and ground to prevent injury or damage to

the meter.

4.2 AC/DC Current measurement

• Turn off power to the circuit. Allow all capacitors to

discharge.

• Set the rotary switch to the appropriate AC/DC current

voltage.

• Press “FUNC” to switch between AC and DC current.

• Depending on the current to be measured, connect the

red test lead to either the input or 10A jack and the black

lead to the COM jack.

• Break the circuit and connect the leads in series with

the circuit (black lead on the lower voltage side).

• By Hz range:

- Input voltage range: >2V AC (True-RMS)

( higher input voltage at higher frequency )

- Max.input voltage: 600V AC (True-RMS)

15 1 6

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