Neoteck NTK017 Auto Ranging Digital Multimeter

Introduction

Neoteck instrument is a handheld and battery-operated Digital Multi Meter(DMM) with multi-function. This Meter is designed to meet IEC61010-1 & CAT II 600V over-voltage category and double insulation. The meter with holster that is giving the main body, though downsized, high resistance against the shock of a drop.This operating instruction covers information on safety and caution. Please read relevant information carefully and observe all the warnings and note strictly.
The DMM as general measurement tool and widely used in the school, laboratory, factory and another social field.

Safety note

Warning
To avoid possible electric shock or personal injury and to avoid possible damage to the meter or to the equipment under test, adhere to the following rule:

• Do not apply more than the rated voltage, of marked on the meter, between the input terminal and grounding terminal..
• Do not apply voltage between COM and OHM terminal, in the resistance measuring state.
• Do not measure current with test lead inserted into voltage or OHM terminal.
• Do not expose the instrument to the direct sun light, extreme temperature and humidity or dew full.
• Inspect the test lead for damaged insulation or exposed metal.
• Before measuring current, check the Meter’s fuses and turn off power to the circuit before connecting the meter to the circuit.
• Disconnect circuit power and discharge all high voltage capacitors before testing continuity, diode, resistance, capacitance or current.

Note international Electrical Symbol.

Measurement category(over voltage category):

This instrument is meet the safety condition of CAT II. The equipment is used for measurement in building facilities. Examples are measurements on distribution boards, circuit breaker and industrial equipment located in fixed facilities, as a fixed motor.

Explanation of controls and indicators

Meter illustration

1. LCD display
2. “FUNC” Push button
3. “BACK LIGHT” push button and ‘HOLD” push button
4. Rotary Switch (Knob)
5. “V/Ω/HZ/uA/mA”Input terminal
6. “COM” input terminal
7. “10A” input terminal

Functional push button

Display indicators

Fig. 2 LCD 

Specification

General Specification

• Auto-ranging DMM , that full scale is 2000 counts
• Display : 3 1/2 digit LCD display..
• Overload protection: Used the PTC protection circuit for Resistance, frequency measurement for.
• DATA HOLD function
• Back Light
• Low battery indication
• Auto Power- OFF. : If the meter is idle for 15 minutes (idle time), the meter automatically turns the power off. After auto power-off, pushing any of the push button or changing the rotary switch can turn on the meter again.
  NOTE:
• After auto power off in the AC mode, if changing the rotary switch to the DC mode, the Re-power on if disabled.
• The meter enters sleep mode after quto power off. If press “HOLD” push button to re-power on in the sleep mode, the auto power off function is disabled.
• Operating temperature & Humidity:
  0 ~ 40℃ (32 ~104 ℉) & < 80% RH
• Storage temperature & Humidity:
  10 ~ 50℃ (14 ~ 122 ℉) & <70%RH
• Power Supply: 9V Battery(6F22 or 1604A Type) x 1pc.
• Safety Class: IEC 61010-1, CAT II 600V.
• Dimension(L x W x H) & Weight:138×68×30mm, Approx. 175g

Accessory

1. User s Manual 1pc
2. Test lead 1set
3. 9V Battery 1pc

Electrical Specification ( at 2 3 5 ℃℃; <75%RH)

DC Voltage

AC Voltage

Resistance

Diode check

Range	Resolution	Function
	0.001V	Will display the forward drop voltage.

Operating current: about 1mA
Open circuit voltage: about 1.48V

Continuity

Range	Function
	If measured resistance less than 100Ω, will buzzer is sounded.

* Open voltage: about 0.5V

DC Current

• * Over Load protection use the fuse(F250mA/250V) at µ A /mA range, and use the fuse(F10A/250V) at 10A range.
• * Max input current: 250mA at mA input terminal and 10A at 10A input terminal.

capacitance

• * Over Load protection use the fuse(F250mA/250V)

AC Current [40Hz 400Hz]

• Over Load protection：use the fuse(F250mA/250V) at µA /mA range, and use the fuse(F10A/250V) at 10A range.
• Max input current:：250mA at ‘mA’ input terminal and 10A at ‘10A’ input terminal…
• Frequency response：40 ～ 400Hz

Frequency

Sensitivity： 0.8V

Measurement operation

DC & AC voltage measurement

Warning:
To avoid harms to you or damage to the meter from electric shock. Please do not attempt to measure voltage higher than DC/AC 1000V although readings may be obtained.

The DC voltage range are 200.0mV, 2.000V, 20.00V , 200.0V and 600V and then. The AC voltage ranges are 2.000V, 20.00V, 200.0V and 600V.

To measure DC or AC voltage: 

1. Insert the red test lead into the “VΩ” input terminal and the black test lead into the COM terminal.
2. Set the rotary switch to DC or AC range.
3. Connect the test lead across with the object under testing.

The measured value will be show on the LCD display.

Note:
When DC or AC voltage measurement has been completed, disconnect the connection between the testing lead and the circuit under testing.

Resistance measurement

The resistance range are: 200.0Ω, 2.000KΩ,20.00KΩ, 200.0KΩ , 2.000M Ω.20.00MΩ.

To measure resistance, connect the meter as follows:

1. Insert the red test lead into the ”VΩ” terminal and the black test lead into the COM terminal.
2. Set the rotary switch to proper resistance range..
3. Connect the test lead across with the object under testing.
   The measured value will be show on the LCD display.

Note:

• The test lead can add 0.1Ω to 0.2Ω of error to resistance measurement. To obtain precision reading in low-resistance measurement, that is the range of 200.0Ω, short the input terminal before measuring. In this time, the contact resistance displayed on the LCD. You can subtract the contact resistance value from the measured value.
• For high-resistance measurement (>10MΩ), it is normal taking several second to obtain stable reading.
• The LCD display “OL” indicating open-circuit for the tested resistor or the resistor value is higher than the maximum range of the meter.

Diode/Continuity check

Diode

1. Set the rotary switch to position. First time, default mode is diode check mode. You can enter the continuity check mode by the “ FUNC” Key.
2. insert the red test lead into the “VΩ” terminal and the black test lead into the “COM” terminal.
3. Use the diode test mode to check diodes, transistors and other semiconductor device. In the diode test mode sends a current through the semiconductor junction, and the measure the voltage drop across the junction. A good silicon junction drop between 0.5V and 0.8V.
4. For forward voltage drop reading on any semiconductor component, place the red test lead on the component anode and place the black test lead on the component cathode. The measured value show on the display.
5. Reverse the test lead and measure the voltage across the diode again.
   1. If diode is good, the display shows “OL”.
   2. If diode is shorted, the display shows 0 (zero) in both direction.
   3. If display shows “OL” in both direction, the diode is open.

Continuity Check:

1. Press the “FUNC” key to enter to the continuity mode.
2. The buzzer sound if the resistance of a circuit under test is less than 100 Ω.

Frequency measurement

1. Set the rotary switch to “Hz” position.
2. Insert the red test lead into the “ VΩHz” input terminal and the black test lead into the “COM” terminal.
3. Connect the test leads across with the circuit under testing. The measured value shown on the LCD display.
   NOTE: Input signal level must be higher than 0.5V (it is sensitivity).

DC/AC µA or mA measurement

DC Current range is 200.0µA/2000µA and 20.00mA,/200.0mA and then 10A range.
AC Current range is 200.0µA/2000µA and 20.00mA,/200.0mA and then 10A range.

1. Turn off power to the circuit. Set the rotary switch to the properDC/AC µA or DC/AC mA position.
2. Break the current path to be tested. Connect the red test lead to the more positive side of the break and the black test lead to the more negative side of the break.
3. Turn on power to the circuit. The measured value show on the display.

DC/AC 10A measurement

1. Insert the red test lead into the input terminal marked as “10A”.
2. The measuring procedure is same as that of 5-5 section..

Note:

• For safety’s sake, the measuring time for high current should be ≤10 second for each measurement and the interval time between two measurement should be greater than 5 minutes.
• When current measurement has been completed, disconnect the connection between the testing lead and the circuit under test.

Capacitance measurement

Note:To avoid damage to the instrument or device under test to measure capacitance previously, should cut off all power of the circuit to be measured and all high-voltage capacitors discharge. DC voltage function determines the capacitor has been discharged.
Capacitance is component’s ability to store charge.

The unit of capacitance is ferrari (F). Most of the value of the capacitor is in the law (nF) between microfarads (F). Instrument is through the capacitor charging (with a known current and time), then measure the voltage, then calculate capacitance value. 1000 mu F measuring takes about eight seconds, the faster the smaller capacitance measurement. Instrument test more than 500 mu F, there will be a slight jumps phenomenon.

Measurement of capacitance

1. The rotary switch to gear.
2. Respectively connects black test pens and a red pen to COM input socket and input socket.
3. Use the test pen on both ends of the other measuring capacitance of the capacitor under test value and measured value read from the LCD display.
4. When the meter measuring large capacitance, it takes time to stable reading.

Maintenance

Replacing the battery

When meter display the battery must be replace to maintain normal operation.

1. Disconnect and remove all test probes from any live source and meter.
2. Open the battery cover on the bottom case by screwdriver.
3. Remove old battery and snap new one into battery holder

Fuse replacement

Replacing the defective fuse should the done according to the following procedure.

1. To avoid electrical shock, remove the test lead and any input signal before opening the bottom case.
2. Open the botton case and then remove the defective fuse and insert a new fuse of the same size and rating.
3. Replace the bottom case and reinstall all the screw.

Cleaning and Decontamination

The meter can be cleaned with soft clean cloth to remove any oil, grease or grim. Do not use liquid solvent or detergent.

Caution

Please turn off the item when it is not in use in order to prolong its working life.

Warranty

Thanks for using Neoteck product, all neoteck product comes with warranty of 18 months from the day of purchase, if you need any support, please feel free to contact us.

Contact

Here is the steps for you to contact the correct seller:

Highly recommend：

1. Log in your amazon account on www.amazon.com
2. Find the “Your Account” on the upper right corner of this page, and then click “Your order”.
3. Then you will find “contact seller”
   Or Email: neoteckcs@gmail.com

FAQ

• Q: How do I enable the backlight on the meter?
  A: Press and hold the BACK LIGHT push button for over 2 seconds to enable the backlight. Press the button again to disable it.
• Q: What happens if the meter is idle for a long time?
  A: The meter will automatically turn off after 15 minutes of idle time to save power. You can turn it back on by pressing any push button or changing the rotary switch.

Documents / Resources

Neoteck NTK017 Auto Ranging Digital Multimeter [pdf] Instruction Manual NTK017 Auto Ranging Digital Multimeter, NTK017, Auto Ranging Digital Multimeter, Ranging Digital Multimeter, Digital Multimeter, Multimeter

References

• User Manual