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4.17 NCV Measurement

1) Turn the meter to NCV mode.
2) Place the meter top close to the conductor. When test
voltage is greater than 110 Vac (RMS), when the meter
is close to the conductor, the meter induction voltage
indicator will turn on and the buzzer will give an
alternating high-low alarm sound.

1. Even there is no indication, voltage may exist still.
Don't use non-contact voltage detector to judge
whether there is voltage in the wire. Detection
operation could be affected by socket design,
insulation thickness, type and other factors.

Note:

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Содержание MS2025A

Страница 1: ...MS2025A Digital Clamp Meter Operation Manual CAT III 1000V ...

Страница 2: ... Max Min Measurement Choice 4 5 Function Switch 4 6 REL INRUSH Measurement 4 7 Back Light And Clamp Head Light 4 8 Automatic Power Off 4 9 Measurement Preparation 4 10 Current Measurement 4 11 Voltage Measurement 4 12 Frequency And Duty Ratio Measurement 4 13 Resistance Test 4 14 Diode Test 4 15 Circuit Continuity Test 4 16 Capacitance Measurement 5 Maintenance 5 1 Replace Battery 5 2 Replace Prob...

Страница 3: ...nctionality of the meter and ensure safe operation please read carefully and follow the directions in this manual If the equipment is used in a manner not specified by the manufacturer the protection provided by the equipment may be impaired WARNING This meter is designed and manufactured according to safety requirements of EN 61010 1 EN 61010 2 032 EN 61010 2 033 concerning electronic measuring i...

Страница 4: ...The meter is used for AC current DC current AC voltage DC voltage frequency duty ratio resistance capacitance measurement circuit connection diode test and non contact voltage detection The meter has automatic measuring range and manual measuring range The meter has reading hold function The meter has max measuring function The meter has min measuring function The meter has clamp head frequency me...

Страница 5: ...ratio switch button Hz 8 LCD display 9 Common end jack 10 Resistance capacitance voltage frequency diode and continuity input jack 11 Maximum minimum choice button MAX MIN 12 Reading hold Back light button B L HOLD 13 Transfer switch 14 NCV indicator 2 1 Part Name 15 13 12 11 10 9 8 7 5 4 2 6 3 1 14 15 Protective Barrier to warn the operator of the limit of safe access ...

Страница 6: ......

Страница 7: ... The meter should be recalibrated under the condition of 18 C 28 C relative humidity less than 75 with the period of one year 3 1 General 3 2 Technical Indicators Environment temperature 23 5 C relative humidity RH 75 3 2 1 True RMS Zero Input Characteristic 3 2 1 1 For measuring non sinusoidal wave signal uses true RMS measuring method which has less error than traditional average response measur...

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Страница 10: ...key to change to the bottom range followed by recycling If this key is pressed more than 2 sec it will switch back to automatic measuring range state In capacitance and frequency measurement state rhw manual measuring range button is invalid Note 4 3 Frequency Duty Ratio Switch 1 When the meter is in AC voltage mode if Hz button is pressed the meter will measure Hz and measure AC voltage AC curren...

Страница 11: ...urrent mode press FUNC button to switch between AC and DC 4 5 Function Switch 1 REL INRUSH button is relative value measurement button Operated by tapping this button it will enter relative value measurement mode The current display value can be stored in the memory as reference value When the user measures later the display value is the difference for input value minus reference value ie REL curr...

Страница 12: ...ropriate measuring range 2 Hold the trigger open clamp head clip one lead of measurement circuit to be tested inn the clamp 3 Read the current value on the LCD display 4 11 Voltage Measurement Electric shock hazard Pay special attention to avoid shock when measuring high voltage Don t input voltage more than AC750 RMS Warning 1 Insert black probe to COM jack insert red probe to INPUT jack choose a...

Страница 13: ...to switch to frequency measuring state 4 Rad the current value on the LCD display 5 Pressing Hz again can enter duty ratio measuring state 1 Clamp head measuring frequency through AC current Note 1 Clamping two or more leads of circuit to be tested simultaneously will not get the correct measuring results 2 Frequency measurement range is 10Hz 1kHz the frequency to be tested is less than 10Hz or if...

Страница 14: ...gnal or both ends of load in parallel for measurement 4 Read on the LCD 5 Pressing Hz again can enter duty ratio measuring state Frequency measurement range is 10Hz 1kHz When the frequency to be tested is more than 10Hz the LCD will show 00 0 measuring frequency higher than 10 kHz is possible but accuracy is not guarantee Note 4 13 Resistance Test Electric shock hazard When measuring circuit imped...

Страница 15: ... the conductor the meter induction voltage indicator will turn on and the buzzer will give an alternating high low alarm sound 1 Even there is no indication voltage may exist still Don t use non contact voltage detector to judge whether there is voltage in the wire Detection operation could be affected by socket design insulation thickness type and other factors Note ...

Страница 16: ...putting voltage on the meter input terminal due to the existence of the induced voltage voltage induction indicator also may light 3 External sources of interference such as flashlight motor etc may incorrectly trigger non contact voltage detection 5 Maintenance 5 1 Replace Battery The battery polarity can t be reversed Note 5 2 Replace Probe WARNING Replace test leads if leads become damaged or w...

Страница 17: ...R 00 05 1803 ...

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