MASTECH MS2016A AC Leakage Clamp Meter User Manual

Leakage Clamp Meter
Operation Manual

Safety Information

WARN ING special attention should be paid when using the meter because improper usage may cause electric shock and damage the meter. The safety measures in common safety regulations and operating instructions should be complied with when using. In order to make full use of its functions and ensure safe operations please comply with the usage in this section carefully.
The meter is designed and manufactured according to safety requirements of EN 61010-1:2010, EN 61010-2-032, EN 61010-2-033 on an electronic measuring instrument and handheld digital multipurpose meter. And conforms to UL STD.61010-1,61010-2-032,61010-2-033, Certified to CM STD.C22.2 NO.61010-1,IEC STD 61010-2-032, IEC STD61010-2-033.The product meets with the requirements of 600V CAT III and pollution degree 2.
All safety guidelines outlined should be followed otherwise the protection provided by the instrument may be impaired. Warning symbols in the manual alert users of potential dangerous situations. Precautions are to prevent the user from damaging the instrument or the test object.
1.1 Preliminary
1.1.1 When using the meter, the user should comply with standard safety rules: – General shock protection – Prevent misusing the meter
1.1.2 Please check for damage during transportation after receiving the meter.
1.1.3 If the meter is stored and shipped under hard conditions, please confirm if the meter is damaged.
1.1.4 Probe should be in good condition. Before use, please check whether the probe insulation is damaged and if the metal wire is bare.
1.1.5 Use the probe table provided with the meter to ensure safety. If necessary, replace the probe with another identical probe or one with the same level of performance
1.2 Usage
1.2.1 When using, select the right function and measuring range.
1.2.2 Don’t measure by exceeding the indication value stated in each measuring range.
1.2.3 When measuring a circuit with the meter connected, do not contact with probe tip (metal part).
1.2.4 When measuring, if the voltage to be measured is more than 60 V DC or 30 VAC (RMS), always keep your fingers behind the finger protection device.
1.2.5 Do not measure voltage greater than 600V DC or AC(RMS).
1.2.6 In the manual measuring range mode, when measuring an unknown value, select the highest measuring range first.
1.2.7 Before rotating the conversion switch to change the measuring function, remove the probe from the circuit to be measured.
1.2.8 Don’t measure resistor, capacitor, diode, and circuit connected to power.
1.2.9 During the test of currents, resistors, capacitors, diodes, and circuit connections, be careful to avoid connecting the meter to a voltage source. 1.2.10 Do not measure capacitance before the capacitor is discharged completely.
1.2.11 Do not use the meter in explosive gas, vapor or dusty environments.
1.2.12 If you find any abnormal phenomena or failure on the meter, stop using the meter.
1.2.13 Unless the meter bottom case and the battery cover are completely fastened completely, do not use the meter.
1.2.14 Don’t Store or use the meter in the conditions of direct sunlight, high temperature and high humidity.
1.2.15 Measure is known voltage with the meter to verify that the meter is working properly. If the meter is working abnormally, stop using it immediately. A protective device may be damaged. If there is any doubt, please have the meter inspected by a qualified technician.

****| Note-Important safety information, refer to the
instruction manual.
---|---
| Application around and removal from UNINSULATED
HAZARDOUS LIVE conductors is permitted.
| Equipment protected throughout by double
insulation or reinforced insulation.
| Conforms to UL STD. 61010-1, 61010-2-032,
61010-2-033; Certified to CSA STD C22.2 NO.
61010-1, 61010-2-032,61010-2-033
| Complies with European (EU) safety standards
| Earth (ground) TERMINAL

CAT III: MEASUREMENT CATEGORY III is applicable to test and measure circuits connected to the distribution part of the building’s low-voltage MAINS installation.
1.4 Maintenance
1.4.1 Don’t try to open the meter bottom case to adjust or repair. Such operations can only be performed by technicians who fully understand the meter and electrical shock hazard.
1.4.2 Before opening the meter bottom case or battery cover, remove the probe from the circuit to be measured.
1.4.3 To avoid wrong readings causing electric shock, when “ appears on the meter display, replace the battery immediately.
1.4.4 Clean the meter with a damp cloth and mild detergent. Do not use abrasives or solvents.
1.4.5 Power off the meter when the meter is not used. Switch the measuring range to the “OFF” position. 1.4.6 If the meter is not used for a long time, remove the battery to prevent the meter from being damaged.
2. Description
– The meter is a portable, professional measuring instrument with an LCD display for easy reading by users. The measuring range switch is operated by a single hand for easy operation with overload protection and a low battery indicator. It is an ideal multifunction meter for professionals, factories, schools, fans, and family use.
– The meter is used for AC leakage current, AC voltage, DC voltage, resistance, capacitance, circuit connection, diode, and temperature test.
– The meter has a reading hold function.
– The meter has a maximum measuring function.
– The meter has a minimum measuring function.
– The meter has an auto power-off function.
2.1 Part Name

1. The center of the clamp head
2. Transfer switch
3.  Resistance, capacitance, voltage,diode, and continuity input jack
4.  Common end jack
5. LCD display
6. Function choice button
7.  Trigger
8. Current clamp head: used for leakage current measurement.
9. Protective barrier

2.2 Switch, Buttom and Input jack description

HOLD/LPF button: used for reading hold and LPF(50Hz/ 60Hz)function control.
FUNC/ZERO button: used for measuring function switch and current clearing function control.
MAX/MIN button: used for maximum/minimum measurement function switch and leakage current measuring. OFF position: used for shutting off the power.
INPUT jack: voltage, resistance, capacitance, diode, circuit connection input wire connecting, and temperature terminal.
COM jack: voltage, resistance, capacitance, diode, circuit connection common wire connecting, and temperature terminal.
Transfer switch: used for selecting a function and measuring range.

2.3 LCD Display

**AC DC

Automatic measuring range and manual measuring range.
Full measuring range overload protection.
The maximum allowable voltage between
measurement end and ground: 600V DC or AC(RMS)
Operational height: maximum 2000m
Display: LCD.
Displayed maximum value: 4000 counts.
Polarity indication; automatical indication, “-” means negative polarity.
Exceeding measuring range display: “**OL** “.
Sampling rate: about 3 times/sec.
Unit display: has function and power unit display. Auto-off time: 30 min.
Power supply: 2×1.5V AAA Batteries.
Battery under-voltage indication: LCD displays”   ” symbol.
Temperature coefficient: less than 0.1 x accuracy/℃.
Operational temperature: 18℃~28℃.
Storage temperature: -10℃~50℃.
Dimension: 213x62x38mm (8.4×2.44×1.5in).
Weight: about 238g(8.4oz)-include battery.
Indoor use.
3.2 Technical Indicators
Environment temperature: 23±5°C, relative humidity (RH):<75%
3.2.1 AC Current

• Maximum input current: 150AAC
• Frequency range: 40-1 kHz

3.2.2 DC Voltage

• Input impedance: 10M4
• Maximum input voltage: 600V DC or AC(RMS)

Note: In the small voltage measuring range, the probe is not connected with the circuit to be tested, and the meter may have fluctuating readings, which is normal and caused by the meter’s high sensitivity. This does not affect actual measurement results.

3.2.3 AC Voltage

• Input impedance: 10M0
• Maximum input voltage: 600V DC or AC(RMS)
• Frequency range: 40-1 kHz(sine wave)

Note: In the small voltage measuring range, the probe is not connected with the circuit to be tested, and the meter may have fluctuating readings, which is normal and caused by the meter’s high sensitivity. This does not affect actual measurement results.
3.2.4 Resistance

• Open circuit voltage: about 1.0V
• Overload protection: 600V DC or AC

3.2.5 Circuit Continuity Test

meter’s built-in buzzer may sound.

• Overload protection: 600V DC or AC (RMS) 2.6 Temperature Test

• Overload protection: 600V DC or AC (RMS)
• The parameter does not contain thermocouple errors

3.2.7 Capacitance

• Overload protection: 600V DC or AC (RMS)
• The parameter does not contain errors caused by base capacitance and capacitance probe

3.2.8 Diode Test

• Forward DC current is about 1 mA
• Backward DC voltage is about 3.2V
• Overload protection: 600V DC or AC (RMS)

**Operating Guidance

**

4.1 Reading Hold Function
In the process of measurement, if the reading hold is required, press the “LPF/HOLD” key, the value on the display will be locked. press the “LPF/HOLD” key again to cancel the reading hold state.
4.2 50Hz/60Hz Current Selection Fiction
In the process of the current mode, press the “LPF/HOLD” key
more than 2 sec, the meter will enter the LPF(50Hz/60Hz) current measurement.
4.3 Maximum/Minimum Measurement Function

1. Press the “MAX/MIN” key to enter MAX mode, the meter will enter maximum measurement value; press the “MAX/MIN” key again, the meter will enter minimum value measurement state; press the “MAX/MIN” key to repeat the above operations by recycling.
2. If the user presses the “MAX/MIN” key for more than 2 sec, the meter will restore the normal measuring range.

Note

1.  When the meter is in the maximum/minimum value measurement state, it is in manual measuring range mode.
2. When the meter is in the temperature measurement state, it can’t switch to maximum/minimum value measurement mode.

4.4 Function Selection Function

1. In the resistance mode, press the “FUNC/ZERO” button, it will switch among resistance, diode, and continuity detection by recycling.
2. In the voltage mode, press the “FUNC/ZERO” button to switch between AC and DC.
3. In the temperature mode, press the “FUNC/ZERO” button to switch between Celsius(°C) and Fahrenheit (°F) degrees.

4.5 Current Clearing Function
In the current model, press the “FUNC/ZERO” key for more than 2 sec, the meter will clear the display of the current value.
4.6 Automatic Power-Off

1. If there is no operation during any 30 minutes after turning the machine on, the meter will enter a suspended state, automatically powering off to save the battery. Within 1 minute before the shutdown, the buzzer will sound five times. The meter will then enter a dormant state.
2. After automatic power-off, press the “FUNC/ZERO” key, the meter will turn on again.
3. If the user holds the “FUNC/ZERO” key when powering on, it will cancel the automatic power-off function.

4.7 Measurement Preparation

1.  Turn the transfer switch to turn on the power. When the battery voltage is low (about2.4V), LCD displays the ” C)” symbol, replace the battery.
2. “A” symbol means that input voltage or current should not be more than the specified value, which is to protect the internal line from damage.
3. Place transfer switch to required measuring function and range.
4. When connecting line, first connect the common test line, then connect charged test line. When removing the line, remove charged test line first.

4.8 Current Measurement
**** Warning Electric shock hazard. Remove the probe measuring with the current clamp.

1. The measuring switch is placed to position A. At this time, the meter is in AC current measurement state. Choose appropriate measuring range.
2. Hold the trigger, open the damp head, dip one lead of the measurement circuit to be tested in the clamp. 3) Read the current and frequency value on the LCD display.

Note

1.  Clamping two or more leads of circuits to be tested simultaneously will not get the correct measuring results.
2. To get an accurate reading, connect the lead to be tested at the center of the current clamp.
3. “ ****” indicates that the maximum input AC current is 150A.
4.  Do not touch or handhold position over the protective barrier, when measuring current.

4.9 Voltage Measurement
warning Electric shock hazard.
Pay special attention to avoid shock when measuring high voltage. Do not input voltage more than 600V DC or AC (RMS)

1.  Insert black probe to “COM” jack, insert red probe to “INPUT” jack, choose appropriate measuring range.
2. The measuring switch is placed to position At this time, the meter is in the AC Voltage measurement state. To measure DC Voltage, press the “FUNC/ZERO” button to enter the DC Voltage measurement state.
3. Connect the probe with the voltage source or both ends of load in parallel for measurement.
4. Read the voltage and frequency on the LCD.

Note

1.  In the small voltage measuring range, the probe is not connected with the circuit to be tested, and the meter may have fluctuating readings, which is normal and caused by the meter’s high sensitivity. When the meter is connected with the circuit to be tested, you will get the actual measured value.
2. In the relative measurement mode, the automatic measuring range is invalid.
3. “&” indicates that the maximum input voltage is 600V DC or AC(RMS). 4) If the readings measured by the meter is more than 600V DC or AC (RMS), it will send out a “beep” alarm.

4.10 Resistance Measurement
Warning Electric shock hazard.
When measuring circuit impedance, determine that the power supply is disconnected and the capacitor in the circuit is completely discharged.

1. Insert black probe to “COM” jack, insert red probe to “INPUT” jack.
2. The measuring switch is placed to position – At this time, the meter is in the measurement state.
3. Connect the probe to both ends of the resistor or circuit to be tested for measurement.
4. LCD will show readings.

Note

1. When the input end is open, LCD shows “OL” outrange state.
2. When the resistance to be tested>1 MO, the meter reading will stabilize after a few seconds, which is normal for high resistance readings.

4.11 Diode Measurement

1. Insert black probe to “COM” jack, insert red probe to “INPUT” jack.
2. The measuring switch is placed to position*
3. Press the “FUNC/ZERO” key to switch to F measuring state.
4. Connect the red probe to the diode anode and connect the black probe to the diode cathode to make the test.
5. Read on the LCD.

Note

1. What the meter shows is an approximation of the diode forward voltage drop.
2. If the probe has a reverse connection or the probe is open, the LCD will show “OL”.

4.12 Circuit Continuity Measurement
Warning
Electric shock hazard. When measuring circuit continuity, determine that the power supply is disconnected and the capacitor in the circuit is completely discharged.

1.  Insert black probe to “COM” jack, insert red probe to “INPUT” jack.
2. The measuring switch is placed to position
3. Press the “FUNC/ZERO” key to switch to circuit continuity measuring state.
4. Connect the probe to both ends of the circuit to be tested for measurement.
5. If the resistance of the circuit to be measured is less than 500, the meter’s built-in buzzer may sound.
6. Read the circuit resistance value on the LCD. Note: If the probe is open or the circuit’s resistance to be tested is more than 4000, the display will show “OL”.

4.13 Capacitance Measurement
**** Warning Electric shock hazard. To avoid electric shock, before measuring capacitance, discharge capacitance completely.

1. Insert black probe to “COM” jack, insert red probe to “INPUT” jack.
2. Measuring switch is placed to the position if.
3. After discharging capacitance completely, connect the probe to both ends of the capacitor to be tested for measurement.
4. Read the capacitance on the LCD. Note: To improve the accuracy below 1 nF measuring value, subtract the distributed capacitance of meter and cable.

4.14 Temperature Measurement

1. A measuring switch is placed to position TEMP.
2. Connect the negative and positive end of the K-type thermocouple to the “COM” jack and “INPUT” jack.
3. Place K-type thermocouple to the object or environment to be measured.
4. Read measured result from LCD display.

Maintenance

5.1 Replacing The Batteries

WARNING To avoid electric shock, make sure that the test leads have been clearly moving away from the circuit under measurement before opening the battery cover of the meter.
WARNING Do not mix old and new batteries. Do not mix alkaline, standard (carbon-zinc), or rechargeable (ni-cad, ni-me, etc) batteries.

5.1.1 If the sign appears, it means that the batteries should be replaced.
5.1.2 Loosen the fixing screw of the battery cover and remove it.
5.1.3 Replace the exhausted batteries with new ones. 5.1.4 Put the battery cover back and fix it again to its original form.
Note:
Do not reverse the polarity of the batteries.
5.2 Replacing Test Leads
Replace test leads if leads become damaged or worn.

WARNING

Use meet EN 61010-031 standard, rated CAT III 600V, MAX 10A or better test leads.

  Accessories

MGL Global Solutions (China) Company Limited
72 Puxing East Road, Qingxi, Dongguan,
Guangdong,523649,
China Contact number:0769-81901647
E-mail:info.cn@mgl-intl.com
R-00-05-2206

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