Mastech MS2225A Operation Manual
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Mastech MS2225A Operation Manual

Digital clamp power meter
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MS2225A
Digital Clamp Power Meter
Operation Manual
CAT III

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Summary of Contents for Mastech MS2225A

  • Page 1 MS2225A Digital Clamp Power Meter Operation Manual CAT III...

  • Page 2: Table Of Contents

    CONTENTS CONTENTS 1. Safety information ..........01 3.2.9. Capacitance .........16 3.2.10 Diode test ........17 1.1 Preparation ..........01 3.2.11 Single-phase active power ..17 1.2 Use ............02 3.2.12 Single-phase apparent power ..18 1.3 Mark ............03 3.2.13 Single-phase reactive power ..18 1.4 Maintenance ..........04 3.2.14 Power factor ........19 2.

  • Page 3: Safety Information

    CONTENTS 1. Safety information WARNING 4.14. Measurement preparation ......25 Please pay special attention when using this meter, 4.15 AC current measurement ......26 improper use may result in electric shock or damage to the 4.16. Voltage measurement ......28 meter. Please follow the common safety rules, and fully comply with the safety precautions specified in the user 4.17 Measuring frequency and duty ratio ..30 manual.

  • Page 4: Use

    1.1.5 The probe provided with the meter can ensure the safe 1.2.12 In case of any abnormality or fault, please stop using use, and it must be replaced with the same probe or the the meter. probe of the same grade, if necessary. 1.2.13 Do not use this meter, unless the bottom case and the battery cover are fully fastened in situ.

  • Page 5: Maintenance

    1.4.6 Take off the battery to prevent the damage to the meter, if you do not use it for a long time. 2. Description -MS2225A single-phase clamp-type harmonic power meter is hand-type intelligent power measuring meter, which combines the digital multimeter and power measurement with Bluetooth function.

  • Page 6: Name Of Parts

    2.1 Name of parts (6) Button for maximum/minimum selection (7) Button for function switch (8) Button for reading holding/back-light Button for frequency and duty ratio measurement, inrush current and up (10) Button for Bluetooth function, relative measurement and down (11) Change-over switch (12) NCV indicator light (13) LCD display Input jack of resistance, capacitance, voltage,...

  • Page 7: Lcd Display

    2.3 LCD display harmonic and 20th harmonic. At the KW and W gears, short- press the function key in the maximum/minimum value measurement interface to scroll down, and switch and display the maximum/minimum value. 3) Short press on alternating current, AC/DC voltage and capacitance for relative value measurement mode.

  • Page 8: Specification

    3. Specification Non-contact voltage detection Recalibrate the meter under the conditions of 18°C~28°C Watt and kilowatt (active power) W,KW and the relative humidity less than 75%, with the VA, KVA Unit of apparent power calibration cycle of 1 year. Var, KVAr Reactive power 3.1 General Phase angle...

  • Page 9: Technical Specifications

    3.2.3 DC voltage Working temperature: 18°C~28°C. Storage temperature: -10°C~50°C. Range Accuracy Resolution Dimension: 238×92×50 mm. 0.001V Weight: around 420 g (including battery). ±(0.5% rdg+ 5 dgt) 0.01V 600V 0.1V 3.2 Technical specifications ±(0.8% rdg+ 4 dgt) 1000V Environmental temperature: 23±5°C relative humidity: ≤...

  • Page 10: Frequency

    3.2.5 Frequency 999.9Hz 0.1Hz 3.2.5.1 Frequency measurement with clamp 9.999kHz 0.001kHz (at A gear): ±(0.3% rdg+ 5 dgt) 99.99KHZ 0.01kHZ 999.9KHZ 0.1KHZ Range Accuracy Resolution 9.999MHZ 0.001MHZ 99.99Hz 0.01Hz ±(1.5% rdg+ 5 dgt) 999.9Hz 0.1Hz - Overload protection: 1000 V DC or 750 V AC (effective value) - Measurement range: 10 Hz~1 kHz - Range of input voltage: ≥...

  • Page 11: Resistance

    3.2.7. Resistance 9.999µF 0.001µF 99.99µF 0.01µF Range Accuracy Resolution 999.9µF 0.1µF ±(3.0% rdg+ 5 dgt) 600Ω 0.1Ω 9.999mF 0.001mF 6kΩ 0.001kΩ ±(0.8% rdg+ 3 dgt) 60kΩ 0.01kΩ 99.99mF 0.01mF 600kΩ 0.1kΩ - Overload protection: 1000 V DC or 750 V AC (effective value) 6MΩ...

  • Page 12: Single-Phase Apparent Power

    Minimum input current: 1 mA, and minimum input 3.2.14 Power factor voltage: 1 V. Range Accuracy Resolution 3.2.12 Single-phase apparent power 0.3 ~ 1 capacitive 0.001 ±(3.0% rdg+ 5 dgt) Range Accuracy 0.3 ~ 1 inductive 0.001 Resolution 0.01VA Minimum input current: 1 mA, and minimum input voltage: 1 V.

  • Page 13: Manual Range

    4.2 Manual range 4.4 Selection of maximum/minimum value measurement The RANGE key is used for setting the auto/manual range, and this key can be activated through triggering. Its 1) Press the "MAX/MIN" key in the kW and W gear, the startup default state is auto range.

  • Page 14: Measurement Of Relative Value

    4) When the meter is at power gear, short-press the FUNC be turned off and the meter will be disconnected from the key in the current measurement interface to enter the APP. current effective value, harmonic, harmonic distortion 4.8 REC function rate THD-R and harmonic distortion rate THD-F measurement interface.

  • Page 15: Inrush Measurement

    4.10 ▲function the battery voltage is reduced due to high working current, the display may display the symbol " "(when the Short-press in the harmonic measurement interface at symbol of " " is displayed, the measurement accuracy KW and W gears to scroll up, and to switch between the cannot be guaranteed).

  • Page 16: Ac Current Measurement

    4.15 AC current measurement WARNING Electric shock. Remove the probe from the meter before measuring with the current clamp. 1) Turn the change-over switch to AC current gear. At this time, the meter is in AC current measurement state, and then the suitable range shall be selected.

  • Page 17: Voltage Measurement

    4.16. Voltage measurement WARNING Electric shock. Pay special attention to high voltage measurement to avoid electric shock. Do not input the voltage with the effective value greater than AC 750. 1) Plug the black probe into COM jack, plug the red probe into INPUT jack, and select the suitablerange.

  • Page 18: Measuring Frequency And Duty Ratio

    4.17 Measuring frequency and duty ratio 2) At voltage gear: 1) Frequency measurement with clamp (at WARNING current gear): Electric shock. Pay special attention to high voltage measurement to WARNING avoid electric shock. Electric shock. Do not input the voltage with effective value greater Remove the probe from the meter before measuring than AC 750.
  • Page 19 3) At HZ/DUTY gear: WARNING Electric shock. Pay special attention to high voltage measurement to avoid electric shock. Do not input the voltage with effective value greater than AC 750 V. (1) Insert the black probe into COM jack, and insert the red probe into INPUT jack.

  • Page 20: Resistance Measurement

    4.18 Resistance measurement WARNING Electric shock. When measuring the impedance on the circuit, the circuit power should be disconnected, and the capacitor in the circuit should be completely discharged. 1) Insert the black probe into COM jack, and insert the red probe into INPUT jack.

  • Page 21: Diode Test

    4.19 Diode test 1) Insert the black probe into COM jack, and insert the red probe into INPUT jack. 2) Turn the change-over switch to the gear. 3) Press "FUNC" to switch into the status of measurement. 4) Connect the red probe to the positive pole of the diode, and connect the black probe to the negative pole for measurement.

  • Page 22: Circuit Continuity Test

    4.20 Circuit continuity test WARNING Electric shock. For the circuit continuity test, the circuit power should be disconnected, and the capacitor in the circuit should be completely discharged. 1) Insert the black probe into COM jack, and insert the red probe into INPUT jack.

  • Page 23: Capacitance Measurement

    4.21 Capacitance measurement WARNING Electric shock. To avoid electric shock, the capacitor should be completely discharged before the capacitance measurement. 1) Insert the black probe into COM jack, and insert the red probe into INPUT jack. 2) Turn the change-over switch to the gear.

  • Page 24: Measurement Of Inrush Current

    4.22 Measurement of inrush current WARNING Electric shock. Remove the probe from the meter before measuring with the current clamp. 4.22.1 Turn the change-over switch to 60/600 A or 1000 A AC current gear. 4.22.2 Hold the trigger, and open the clamp to clamp one conductor of measured circuits.

  • Page 25: Ncv Measurement

    4.23 NCV measurement 1) Turn the change-over switch of the meter to the NCV gear. 2) The top of the meter should be arranged near the conductor. When the detected voltage is great than 110 Vac (RMS), the voltage sensing indicator may be on, and the buzzer may make the alarm sound "beep".

  • Page 26: Active Power Measurement

    4.24 Active power measurement Note: 1) The maximum measurement range of active power is 750 kW, and the LCD will display OL for over range. WARNING 2) The maximum measured current is 4000 mA at W gear. Electric shock. Please do not operate by mistake. Pay special attention to high voltage and high current 3) The minimum measured voltage is 1 V and the measurement to avoid electric shock.

  • Page 27: Apparent Power Measurement

    4.25 Apparent power measurement Note: 1) The maximum measurement range of apparent power is 750 kW, and the LCD will display OL for over range. WARNING 2) The maximum measured current is 4000 mA at W gear. Electric shock. Please do not operate by mistake. Pay special attention to high voltage and high current 3) The minimum measured voltage is 1 V and the measurement to avoid electric shock.

  • Page 28: Power Factor Measurement

    the value is calculated out with the measured voltage, 4.26 Power factor measurement current and active power value. Note: WARNING 1) The maximum measured current is 4000 mA at W gear. Electric shock. Please do not operate by mistake. Pay special attention to high voltage and high current 2) The minimum measured voltage is 1 V and the minimum measurement to avoid electric shock.

  • Page 29: Phase Angle Measurement

    4.27 Phase angle measurement WARNING Electric shock! Pay special attention to high voltage and high current measurement to avoid electric shock. 1) Turn the change-over switch to the kW or W gear, press FUNC key to enter the phase angle measurement interface.
  • Page 30 1) Turn the change-over switch to the kW or W gear, first WARNING long-press the FUNC key to enter the voltage Electric shock. measurement interface, and then short-press the Pay special attention to high current measurement to FUNC key to enter the harmonics measurement avoid electric shock.

  • Page 31: Harmonics Measurement (Current Signal)

    4.29 Harmonics measurement (current Note: 1) The minimum measured current is 1 mA and the signal) maximum measured current is 1000A. This interface 1) Turn the change-over switch to the kW or W gear, first will display OL for over 1000A. long-press the FUNC key to enter the current measurement interface, and then short-press the FUNC key to enter into the harmonics measurement interface,...

  • Page 32: Maintenance

    5 Maintenance 5.1 Battery replacement 6 Attachments Grade: 1000V 10A A pair Probe WARNING Operation instruction 1 copy Before opening the battery cover of meter, take the Battery 6F22 9VOLTS probe away from the measuring circuits to avoid electric shock. 1) If the meter displays the symbol "...

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