Major tech MT715 Bedienungsanleitung

INSTRUCTION MANUAL

AC TRMS OPEN JAW

CLAMP METER

MT715

Contents Page no

1. lntroduction ............................................................................... 4

2. Safety .......................................................................................... 4

3. Description ................................................................................. 6

3.1. Meter Description ............................................................... 6

3.2. Symbols Used on LCD Display ............................................ 7

4. Specifications ............................................................................ 8

4.1. Specifications ..................................................................... 8

4.2. General Specifications ........................................................ 9

5. Operation ................................................................................. 10

5.1. AC Current Measurements ................................................ 10

5.2. AC (True RMS)/DC Voltage Measurements ....................... 10

5.3. Low Z Voltage Measurements ........................................... 11

5.4. Resistance Measurements ............................................... 11

5.5. Continuity Measurements ................................................. 11

5.6. Capacitance Measurements ............................................. 12

5.7. Diode Measurements ........................................................ 12

5.8. Non-Contact Voltage (NCV) Measurements ...................... 12

6. Button ....................................................................................... 13

6.1. MODE and Backlight Button .............................................. 13

6.2. MAX/MIN Button ............................................................... 13

6.3. DATA HOLD and Flashlight Button .................................... 13

7. Automatic Power OFF .............................................................. 13

8. Maintenance ............................................................................. 14

2. Safety

2.1 International Safety Symbols

ŸThis symbol, adjacent to a terminal, indicates that under

normal use, hazardous voltages may be present.

ŸDouble insulation.

ŸApplication around and removal from uninsulated hazardous

live conductors is permitted

ŸThis symbol, adjacent to another symbol or terminal,

indicates the user must refer to the manual for further

information.

The MT715 is a hand held digital open jaw clamp meter. The instrument

LCD adopts a negative display, rotary switch with backlight indication,

which facilitates the user to operate the instrument under dark/dim

conditions. The MT715 is idea for Industrial and domestic applications

where high current measurement is required.

1.1. Measurements:

• AC/DC Voltage

• Low Input Impedance Test AC/DC Voltage

• Resistance

• Capacitance

• Continuity

• Diode

• Non Contact Voltage

1.2. Features:

• Negative LCD display

• Auto Power OFF

• Data Hold and Flash Light

• Fork Clamp Current

• Backlit Range Markings

1. lntroduction

2.2. Safety Notes

• Do not exceed the maximum allowable input range of any function.

• Do not apply voltage to meter when resistance function is selected.

• Set the function switch OFF when the meter is not in use.

• Remove the battery if meter is to be stored for longer than 60 days.

2.3. WARNINGS

• Set function switch to the appropriate position before measuring.

• When measuring volts do not switch to current/resistance modes.

• Do not measure current on a circuit whose voltage exceeds 1000V.

• When selecting ranges always disconnect the test leads from the circuit

under test.

• Replace the batteries as soon as the low battery indicator “ ” appears.

2.4. CAUTIONS

• Improper use of this meter can cause damage, shock, injury or death.

Read and understand this user manual before operating the meter.

• Always remove the test leads before replacing the battery.

• Inspect the condition of the test leads and the meter itself for any

damage before operating the meter. Repair or replace if damaged before

use.

• Use great care when making measurements if the voltages are greater

than 25VAC rms or 35VDC. These voltages are considered a shock

hazard.

• Always discharge capacitors and remove power from the device under

test before performing Diode, Resistance or Continuity tests.

• Voltage checks on electrical outlets can be difficult and misleading

because of the uncertainty of connection to the recessed electrical

contacts. Other means should be used to ensure that the terminals are

not "live".

• If the equipment is used in a manner not specified by the manufacturer,

the protection provided by the equipment may be impaired.

Input Limits

Resistance, Capacitance, Diode Test 300V AC/DC

A AC

V AC/DC

V AC/DC (Low Input Impedance)

200A

1000V AC/DC

600V AC/DC

Function Maximum Input

3.1. Meter Description

1-NCV Indicator Test

2-Current Fork

3-Non-Contact AC Voltage Indicator Light

4-Negative LCD Display

5-Knob Indicator - Backlit

6-Rotary Selector Switch

7-Range Markings - Backlit

8-Data Hold and Flashlight Button

9-M0DE and Backlight Button

10-MAX/MIN Button

11-Flashlight

12-Battery Cover

13-COM Input Jack

14-VΩ CAP Input Jack G

3. Description

13 14

3.2. Symbols Used on LCD Display

1-Alternating Voltage and Current

2-Minus Sign

3-Direct Voltage and Current

4-Auto Power Off

5-Auto Range Mode

6-Continuity Test

7-Diode Test

8-Low Battery

9-Units of Measure List

10-Measurement Display Digits

11-Maximum/Minimum

12-Data Hold

13-Low Impedance Input Mode

45 6 78

1112

60.00kΩ±(1.5% + 4 digits)

10Ω

600.0kΩ100Ω

Range

600.0Ω

6.000kΩ

Accuracy ±(% of reading+digits)

±(1% + 4 digits)

Function

Resistance

Over Range Protection: 300V RMS

Resolution

0.1Ω

1Ω

6.000MΩ±(2.5% + 4 digits)

1kΩ

60.00MΩ±(3.5% + 4 digits)

10kΩ

Range

200.0A

Accuracy ±(% of reading+digits)

±(3% + 5 digits)

Function

AC Current

Over range protection: Maximum input 200A.

Frequency Response: 50 to 60Hz

Resolution

100mA

4. Specifications

4.1. Specifications

(Auto Ranging)

600.0V 100mV

1000V ±(1.5% + 2 digits)

Range

6.000V

60.00V

Accuracy ±(% of reading+digits)

±(1.2% + 5 digits)

±(1.2% + 2 digits)

Function

AC True RMS Voltage

Input Impedance: 10MΩ; Low Input Impedance Test Voltage: ±3kΩ MAX 600V AC

Accuracy Specified from +3.0% of rdg +8 digits;

Over Range Protection: 1000V RMS; Frequency Response: 50 to 1000Hz (sine wave),

50/50(All wave)

Resolution

1mV

10mV

(Auto Ranging)

600.0V 100mV

1000V ±(1.2% + 2 digits)

Range

6.000V

60.00V

Accuracy ±(% of reading+digits)

±(0.9% + 5 digits)

±(1.0% + 2 digits)

Function

DC Voltage

Input Impedance: 10MΩ; Low Input Impedance Test Voltage: ±3kΩ MAX 600V AC

Accuracy Specified from +3.0% of rdg +8 digits;

Over Range Protection: 1000V

Resolution

1mV

10mV

±(5.0% + 10 digits)

6.000µF 1nF

60.00µF

±(3.5% + 10 digits)

0.01µF

Range

60.00nF

600.0nF

Accuracy ±(% of reading+digits)

±(3% + 5 digits)

Function

Capacitance

*>6nF no specification; Over Range Protection: 300V RMS

Resolution

0.01nF

0.1nF

600.0µF 0.1µF

4000µF 1µF

Over Range Protection: 300V RMS.

Testing Condition

Test current of 1.5mA typical

Open circuit voltage <3VDC typical

Reading

Forward voltage drop of Diode

Function

Diode

Test current <0.35mA

While resistance is less than (50Ω)

Buzzer makes a long sound,

Continuity

4.2. General Specifications

Clamp Jaw Opening 16mm approx.

Display 6000 Counts Negative LCD Display

Continuity Check Buzzer sounds at less than 50Ω

Diode Test Test current of 0.35mA typical; Open circuit

voltage <3VDC typical

Low Battery Indication " " is displayed

Over-Range Indication "OL" display

Measurement Rate 3 readings per second, nominal

Input Impedance 10MΩ (VDC and VAC)

Low Input Impedance ~3KΩ (VDC and VAC)

Operating Temperature 5 to 40°C (41 to 104°F)

Storage Temperature -20 to 60°C (-4 to 140°F)

Operating Humidity Max 80% up to 31°C decreasing linearly to

50% at 40°C

Storage Humidity <80%

Operating Altitude 2000 meters maximum

Drop Protection 2m

Battery Two (2) x 1.5V AA Batteries

Battery Life Without Knob, Rotary Button, Flashlight &

backlight ~100h

With Knob, Rotary Button, Flashlight &

backlight ~40h

Auto Power Off After approx. 15 minutes

Dimensions 230 x 44 x 66mm

Weight 259g

Safety For indoor use and in accordance with the

requirements for double insulation to

IEC1010-1 (2001): EN61010-1 (2001)

Overvoltage Category III 1000V and Category

IV 600V, Pollution Degree 2.

5. Operation

NOTES: Read and understand all WARNING and CAUTION statements

in this operation manual prior to using this meter. Set the function select

switch to the OFF position when the meter is not in use.

5.1. AC Current Measurements

WARNING: Ensure that the test leads are disconnected from the meter

before making current clamp measurements.

1. Set the Function switch to the AC Current.

2. Place the current fork around the middle of the test lead.

3. The clamp meter LCD will display the reading.

5.2. AC (True RMS)/DC Voltage Measurements

1. Insert the black test lead into the negative COM terminal and the red

test lead into the positive VΩ CAP terminal

2. Automatically change between AC or DC

3. Connect the test leads in parallel to the circuit under test

4. Read the voltage measurement on the LCD display

CORRECTINCORRECT

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