Major tech MTD15 Bedienungsanleitung

MTD15

400A AC CLAMP METER

INSTRUCTION MANUAL

Contents Page no

1. Safety.......................................................................................4

1.1. International Safety Symbols..............................................4

1.2. Safety Notes.......................................................................4

1.3. Warnings............................................................................4

1.4. Cautions.............................................................................4

3. Specifications.........................................................................6

4. Operation................................................................................7

4.1. AC Current Measurements.............................................7

4.2. AC/DCVoltage Measurements........................................7

4.3. Resistance and Continuity Measurements......................7

4.4. Diode Measurements.....................................................7

4.5. Data Hold........................................................................8

4.6. AC Voltage Measurement...............................................8

4.7. Manual Ranging.............................................................8

4.8. Backlight.........................................................................8

4.9. Battery Replacement......................................................8

1. SAFETY

This symbol, adjacent to another symbol or terminal, indicates

the user must refer to the manual for further information.

This symbol, adjacent to a terminal, indicates that, under

normal use, hazardous voltages may be present.

Double insulation.

1.1. lnternational Safety Symbols

1.2. 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.

1.3. 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 240V.

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

under test.

• Do not exceed the maximum rated input limits.

1.4. 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 any damage 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.

Remove the battery if the meter is to be stored for long periods.

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.

Function Maximum Input

A AC 400A

V DC, V AC 600V DC/AC

Resistance, Diode, Continuity Test 250V DC/AC

Input Limits

1 - Current clamp

2 - Clamp trigger

3 - Rotary Function switch

4 - LCD display

5 - MAX Hold button

6 - Data Hold button

7 - Mode select button

8 - Range select button

9 - Backlight button

10 - COM input jack

11 - V Ω jack

12 - Battery Cover

2. METER DESCRIPTION

1. AC DC AC (alternating current)

and DC (direct currrent)

2. Minus sign

3. 1.8.8.8 2000 count (0 to 1999)

measurement reading

4. AUTO AutoRange mode

5. MAX MAX Hold mode

6. Diode test mode

7. Audible Continuity

8. HOLD Data Hold mode

9. BAT Low Battery icon

10. ℃,℉,m,V, Units of measure list

A,K,M,Ω

3. SPECIFICATIONS

Function Range & Resolution Accuracy (% of Reading

AC Current 2.000 AAC ±(2.5%+10digits)

20.00 AAC ±(2.5%+4 digits)

200.0 AAC

400 AAC ±(3.0%+4 digits)

DC Voltage 200.0 mVDC ± (0.5%+5 digits)

2.000 VDC

20.00 VDC ± (1.2% +3 digits)

200.0 VDC

600 VDC ± (1.5% +3 digits)

AC Voltage 200.0 mVAC ± (1.5% + 30 digits)

2.000 VAC

20.00 VAC ± (1.5% + 3 digits)

200.0 VAC

600 VAC ± (2.0% + 4 digits)

Resistance 200.0 Ω ± (1.0% + 4 digits)

2.000KΩ

20.00KΩ ± (1.5% + 2 digits)

200.0KΩ

2.000MΩ ± (2.0% + 3 digits)

20.00MΩ ± (3.0% + 5 digits)

NOTE: No Auto Ranging & 200mV AC Voltage Range.

Function Range

3. SPECIFICATIONS continued....

Clamp size Opening 23mm (0.9") approx.

Diode Test Test current of 0.3mA typical; Open circuit

voltage 1.5V DC typical.

Continuity Check Threshold <120Ω; Test current < 1mA

Low Battery Indication " BAT" is displayed

Overrange Indication "OL " is displayed

Measurements Rate 2 per second, nominal

Input Impedance 7.8MΩ (VDC and VAC)

Display 3-1/2 digits (2000 counts) LCD

AC Current bandwidth 50/60Hz (AAC)

AC Voltage bandwidth 50/400Hz (VAC)

Operating Temperature -10 to 50°C (14 to 122°F)

Storage Temperature -30 to 60°C (-14 to 140°F)

Relative Humidity 90%(0°C to 30°C); 75%(30°C to 40°C);

45%(40°C to 50°C)

Altitude Operating: 3000m; Storage 10,000m

Over voltage Category III 600V

Battery Two 1.5V "AAA" Batteries

Auto OFF approx. 15 minutes

Dimensions/Weight 200x50x35mm/200g

Safety For indoor use and in accordance with

Overvoltage Category II, Pollution Degree 2.

Category II includes local level, appliance,

portable equipment, etc., with transient

overvoltages less than Overvoltage Cat. III

4. OPERATION

WARNING: Ensure that the test leads are disconnected from the

meter before making current clamp measurements.

NOTE: Read and understand all warning and precaution statements listed

in the safety section of this operation manual prior to using this meter. Set

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

4.1. AC Current Measurements

1. Set the Function switch to the 400A or 200A or 20A or 2A range. If the

range of the measured is not known, select the higher range first then

move to the lower range if necessary.

2. Press the trigger to open jaw. Fully enclose one conductor to be

measured.

3. The clamp meter LCD will display the reading.

4.2. AC/DC Voltage Measurements

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

test lead into the positive V terminal.

2. Set the function switch to the V position.

3. Select AC or DC with the MODE button.

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

5. Read the voltage measurement on the LCD display.

4.3. Resistance and Continuity Measurements

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

test lead into the positive terminal.

2. Set the function switch to the Ω position.

3. Use the multifunction MODE button to select resistance.

4. Touch the test probe tips across the circuit or component under test. It is

best to disconnect one side of the device under test so the rest of the

circuit will not interfere with the resistance reading.

5. For Resistance tests, read the resistance on the LCD display.

6. For Continuity tests, if the resistance is < 120Ω, a tone will sound.

4.4. Diode Measurements

1. Insert the black test lead banana plug into the negative COM jack and

the red test lead banana plug into the positive diode jack.

CORRECTINCORRECT

2. Turn the rotary switch to the position.

3. Press the MODE button until " " appears in the display.

4. Touch the test probes to the diode under test. Forward voltage will

indicate 0.4V to 0.7V. Reverse voltage will indicate "OL". Shorted devices

will indicate near 0mV and an open device will indicate "OL" in both

polarities.

4.5. Data Hold

To freeze the LCD meter reading, press the data hold button. The data hold

button is located on the left side of the meter (top button). While data hold

is active, the DH display icon appears on the LCD. Press the data hold

button again to return to normal operation.

4.6. MAX Hold

To hold the highest reading on the LCD, press the MAX hold button. The

MAX hold button is located on the left side of the meter (bottom button).

The meter reading will not change as readings change, rather it will only

display the highest reading encountered since the MAX hold button was

pressed. Press the MAX hold button again to return to normal operation.

4.7. Manual Ranging

The meter turns on in the autoranging mode. Press the Range button to

go to manual ranging. Each press of the range button will step to the next

range as indicated by the units and decimal point location. Press and hold

the Range button for two seconds to return to autoranging. Manual

ranging does not function in the AC Current, Diode and Continuity check

functions.

4.8. Backlight

The backlight function illuminates the display and is used when the ambient

light to too low to permit viewing of the displayed readings. Press the

button for one second to turn the backlight on and press the button a

second time to turn the backlight off.

4.9.Battery Replacement

1. Remove the one rear Phillips head screw

2. Open the battery compartment

3. Replace the Requires two "AAA" batteries (UM4 R03)

4. Re-assemble the meter

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