Lumel NC 10 300A User Manual
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Lumel NC 10 300A User Manual

Digital clamp meter 300a/1000a
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Summary of Contents for Lumel NC 10 300A

  • Page 1 User Manual...

  • Page 3: Table Of Contents

    Liquid crystal display (11) Display for the selected function ON/OFF pushbutton (12) Display for the unit of Pushbutton for data hold measured quantity. and MIN/MAX storage functions (13) Over range indication for positive analog range. Pushbutton for manual range (14) Pointer for analog indication. selection (15) Scale for analog indication Multi function pushbutton...

  • Page 4: Introduction

    1. Introduction: Thank you very much for selecting LUMEL S.A. i s the leading manufacturer of Electrical and Electronics state-of-art measuring instruments. These clamp meters are manufactured as per IS 13875 and DIN 43751 2. Safety features and safety precautions...

  • Page 5: Switching The Clampmeter "On

    Meaning of the symbols on the device Warning of a danger point (Attention, refer to the user manual) Earth (ground) terminal. Double or reinforced insulation Instrument for over voltage CAT III / IV category II/III OR IV Meaning of the acoustic signals 1) Intermittent acoustic signal: Voltage limit exceeded;...

  • Page 6: Function And Range Selection

    Disconnect the clamp meter from the measuring circuit before you open it, and see section "18. Maintenance" ! Automatic TURN-OFF The meter turns off automatically, when the measured value remains constant (variations of the measured value < + 2digits) for about 10 minutes and when neither a pushbutton nor the function selector switch is operated during that time.

  • Page 7: Liquid Crystal Display

    30 nF 300 nF 3 F 30 F 30 nF... Hz 300 Hz 3 KHz 30 KHz 100 KHz 300 Hz... 300A 1000A 300A ... NC10 1000A 300A 30A ... NC10 300A 5. Liquid crystal display 5.1 Digital display The digital display (9) shows the measured value with correct location of decimal point and sign.

  • Page 8: Data "Hold" Facility

    6. Data “HOLD” facility The HOLD function allows to automatically hold the measured values. The meter holds the measured value on the digital display with a sound signal and displays “HOLD” on LCD display(10). The probes or clamp measuring point and the measured value can now be removed from the on the digital display (9) can be read.
  • Page 9 Meter acknowledgement Display Meas- Measured Function DATA Meas. Values uring Sound MIN / MAX MIN / MAX Value MIN and MAX ranges Signal digital 2 x Short, actual 30 mV/ meas- Stored 300 mV Activate and ured flash Store value 1 x short stored Storage Continued...

  • Page 10: Voltage Measurement On Electrical System Upto 1000V

    Voltage measurement Voltage measurement on electrical systems up to 1000 V with the KS30 measuring adapter...

  • Page 11: Voltage Measurement

    8. Voltage measurement According to the voltage to be measured , set the function selector switch (6) to V Connect the test leads as shown. The ’’ ’’ socket should be connected to the lowest potential ground available. Notes : The 30 mV and 300 mV measuring ranges can only be selected...
  • Page 12 Resistance measurement Diode Test Forward direction Reverse direction Continuity Test...

  • Page 13: Resistance Measurement

    9. Resistance measurement Verify that the device under test is electrically dead. External voltages would falsify the measured result ! Set the function selector switch (6) to " ". Connect the device under test as shown. Zero adjustment on the 30 measuring range When measuring small resistance values on the 30 range, you can eliminate the resistance of the leads and contact resistance by zero...

  • Page 14: Temperature Measurement

    11. Temperature measurement allows you to measure temperature with NC10 300A / 1000A Pt 100 and Pt 1000 temperature sensors in the range from - 200 (- 100) C...+850 ". Set the function selector switch (6) to " Connect the sensor to the two terminals. Briefly press the yellow multifunction pushbutton (5).

  • Page 15: Frequency Measurement

    Zero adjustment on the 30 nF measuring range When measuring small capacitrance values on the 30 nF range, the internal resistance of the multimeter and the capacitrance of the leads can be eliminated by zero adjustement. Connect the test leads to the meter without device under test. Briefly press the yellow multi-function pushbutton (5) diplaying “00.00”(+1 digit) on the LCD and by a flashing decimal point.

  • Page 16: Ac Current Measurement

    15. AC Current measurement NC10 1000A can measure current upto 1000 A, in two ranges 300A i.e. 300.0A and 1000 A. Where as NC10 can measure current up to 300 A in two ranges i.e. 30.00A and 300.0 A. One of the two ranges can be selected manually with AUTO/MAN key. To measure the current through a cable, push the trigger(21) to open the jaws and clamp the jaws around the cable as shown in Figure a...
  • Page 17 Unique design for safety and comfort Rotary mechanism for clamp jaws: n conventional clamp meters display, keys and clamp jaws are in the same plane. When current measurement is to be done on vertical bus bars, over head cables, cables in congested places user connect the clamp meter but the keys and display may not be visible, hence not able to take the readings or operate the keys.

  • Page 18: Empty Positions

    Normally, it is difficult to access the middle busbar for current measurement. With ‘Rotary mechanism for clamp jaws’ it is easy to access middle bus bar, while keeping display and keys facing towards the user as shown in figure d on previous page.

  • Page 19: Specifications

    17. Specifications Overload Intrinsic error of Meas- capacity 1) digital display Reso- urement Measuring Range Input impedance (...% of rdg. lution Function + ... digits) at Overload Overload Value reference duration conditions 40 pF 30.00 mV 1 mV > 10 G 0.5 + 3 1000 V 300.0 mV...
  • Page 20 Reference conditions + 23 C + 2 K Ambient temperature : 45% ... 55 % RH Relative humidity : 45Hz ...65 Hz Frequency of measured quantity Waveform of the measured sinusoidal quantity 8 V + 0.1 V Battery voltage...
  • Page 21 Variation Measured + (...% of rdg. + ... digits) Influence quantity/ Range of Influence quantity Measuring range 1) With Temperature : Error data apply per 10K change in temperature With Frequency : Error data apply to a display from 300 digits on wards 2) With zero adjustment 3) With unknown waveform (crest factor CF>2),measure with manual range selection 4) With exception of sinusoidal waveform.

  • Page 23: Maintainance

    Response time (after manual range selection) Response time Transient response for Measured quantity/ step function of the of analog of digital measuring range measured quantity indication display from 0 to 80 % 0.7 s 1.5 s of upper range limit 1.5 s from to 50 %...

  • Page 24: Periodic Check-Up

    Attention ! Disconnect the instrument from the measuring circuit before opening battery cover to replace the batteries. Replacing the battery Place the clamp meter on its face. Loosen the screw of battery cover Which is at rear bottom side of meter. Remove battery cover by Sliding it to bottom side.
  • Page 25 NC10-07 "LUMEL" S.A. ul. S ubicka 1 ł 65-127 Zielona Góra - Poland tel.: (48-68) 45 75 100 (exchange) fax: (48-68) 45 75 508 e-mail: lumel@lumel.com.pl Export Department: Tel.: (48-68) 45 75 302 or 304 Fax: (48-68) 325 40 91...

This manual is also suitable for:

Nc 10 1000aNc 10

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