Contents
levenhuk TC20 Zing Digital Multimeter
Specifications:
- Brand: Ermenrich
- Model: Zing TC20
- Type: Digital Multimeter
Product Usage Instructions
Installation:
- Open the battery compartment cover and insert batteries with correct polarity.
- Close the cover securely.
Getting Started:
Press and hold the power button (7) for 3 seconds to turn the device on/off. Use the power button to navigate options. Press HOLD (6) to save data. Press and hold HOLD for 2 seconds to toggle power auto-off function.
Safety Precautions:
Avoid voltages exceeding DC 1000V or AC 750V to prevent damage or electric shock. Refer to user manual and safety instructions.
Voltage Measurement:
- Insert black wire into COM input (9) and red wire into V input (10).
- Touch testing points with corresponding test probes (11).
- Multimeter will auto-select measurement range based on voltage detected.
- Disconnect probes after measurement is complete.
Voltage Measurement Ranges:
| Measurement Range | Accuracy | Resolution |
|---|---|---|
| DC/AC 6V | 0.001V | |
| DC/AC 60V | 0.01V | |
| DC/AC 600V | 0.1V | |
| DC 1000V / AC 750V | 1V |
Resistance Measurement:
Ensure closed loops are de-energized and capacitors are discharged before measuring resistance to prevent errors.
PRODUCT OVERVIEW
- S11
- Flashlight
- LCD display
- Flashlight on/off
NCV (Non-contact - voltage detection) button
- HOLD (Save) button
- Power button
- 10 A input
- COM input (negative interface)
- VΩ input (positive interface)
- Test probes
Ermenrich Zing TC20 Digital Multimeter
Please carefully read the safety instructions and the user manual before using this product. Keep away from children. Use the device only as specified in the user manual.
The kit includes: digital multimeter, test probes (red and black), user manual, and warranty.
Install batteries
Open the battery compartment cover and insert the batteries according to the correct polarity marks. Close the cover.
Getting started
Press and hold the power button (7) for 3 seconds to turn the device on/off
Press the power button (7) to select an option.
Press the HOLD button (6) to save data. Press and hold the HOLD button (6) for 2 seconds to turn the power auto-off function on/off. Do not connect the device to voltages exceeding DC 1000V or AC 750V as it may cause damage to the device.
Observe the safety precautions to avoid the risk of electric shock.
| Display icons Description | |
| Dangerous voltage | |
| Grounding | |
| Double insulation | |
|
Low battery indicator |
|
|
OL |
Overload indication |
|
APO |
Automatic power off |
| Operator must refer to the safety instructions and user manual. | |
Voltage measurement
- Insert the black wire into the COM input (9) and insert the red wire into the VΩ input (10).
- Touch the testing points using the black test probe and the red test probe (11) correspondingly. Ensure the firm contact of the test probes with the testing points.
- If the voltage is greater than 0.6V (AC or DC), the multimeter will compare the AC and DC components of the voltage and will select a greater value, and then it will automatically select the required measurement range (6V / 60V / 600V / 1000V). The measurement result will be displayed on the screen.
- Disconnect the test probes from the tested circuit after the measurement completion.
| Measurement range Accuracy Resolution | ||
| DC/AC 6V | ±(0.5%+3) | 0.001V |
| DC/AC 60V | 0.01V | |
| DC/AC 600V | 0.1V | |
| DC 1000V / AC 750V | ±(0.8%+10) | 1V |
Resistance measurement
- De-energize the closed loop under test and discharge the capacitors. Otherwise, if the voltage in the loop is greater than 0.6V, the multimeter will mistakenly enter the voltage measurement mode.
- Insert the black wire into the COM input (9); insert the red wire into the VΩ input (10).
- Touch the testing points using the black test probe and the red test probe (11). Ensure the firm contact of the test probes with the testing points.
- Then the multimeter will automatically select the required measurement range (600Ω / 6kΩ / 60kΩ / 600kΩ / 6MΩ / 60MΩ). Then the measurement result will be displayed on the screen.
Disconnect the test probes from the tested circuit after the measurement completion.
- To perform an accurate measurement of low resistance, subtract the internal resistance of the test probes from the obtained measurement result value (touch the red test probe with the black test probe to measure the internal resistance of these test probes).
- If the measured resistance at both ends of the test probes is less than 50Ω, the multimeter will emit a continuous sound. Press the power button (7).
| Measurement range Accuracy Resolution | ||
| 600Ω | ±(0.8%+5) | 0.1Ω |
| 6kΩ | ±(0.8%+3) | 1Ω |
| 60kΩ | 10Ω | |
| 600kΩ | 100Ω | |
| 6MΩ | 1kΩ | |
| 60MΩ | ±(2.5%+3) | 10kΩ |
Capacitance measurement
- Fully discharge the capacitor prior to measuringits capacitance. Otherwise, the multimeter will mistakenly enter voltage measurement mode.
- Insert the black wire into the COM input (9); insert the red wire into the VΩ input (10).
- Press the power button (7) to enter capacitance measurement/diode test mode.
- Touch the testing points using the black test probe and the red test probe (11). Ensure the firm contact of the test probes with the testing points.
Then the multimeter will automatically select the required measurement range (10nF / 100nF / 1F / 10µF / 100µF / 1mF / 10mF / 60mF). Then the measurement result will be displayed on the screen.
Disconnect the test probes from the tested circuit after the measurement completion.
- To perform accurate measurement of low capacitance (up to 10nF), subtract the distributed capacitance of the test probes from the obtained capacitance measurement result value after the measurement.
- To perform an accurate measurement of high capacitance, wait for a few seconds until the correct readings are displayed on the screen.
| Measurement range Accuracy Resolution | ||
| 10nF |
±(3.5%+20) |
10pF |
| 100nF | 100pF | |
| 1µF | 1nF | |
| 10µF | 10nF | |
| 100µF | 100nF | |
| 1mF | 1µF | |
| 10mF | 10µF | |
| 60mF | ±(5%+3) | 100µF |
Diode test
- Insert the black wire into the COM input (9); insert the red wire into the VΩ input (10).
- Press the power button (7) to enter the capacitance measurement/diode test mode.
- Touch the testing points using the black test probe and the red test probe (11) correspondingly. Ensure the firm contact of the test probes with the testing points.
Then the measurement result will be displayed on the screen.
The forward voltage drop in a diode that is under test is measured when the forward direct current is ~1mA and the open circuit voltage is ~3V.
If the open circuit voltage is ~0.4V, and if the resistance is less than 50±20Ω, the multimeter will emit a continuous sound. Press the power button (7).
Alternative current and direct current measurement
- De-energize the closed loop under test and discharge the capacitors.
- Insert the black wire into the COM input (9); insert the red wire into the VΩ input (10) or into 10A input (8).
- Touch the testing points using the black test probe and the red test probe (11) correspondingly. Ensure the firm contact of the test probes with the testing points.
- Energize the circuit.
- If the current is greater than 20mA (AC or DC), the multimeter will compare the AC and DC components of the current and will select a greater value. Then the measurement result will be displayed on the screen.
- De-energize the circuit. Disconnect the test probes from the tested circuit after the measurement completion.
- Apply not more than 10A and not more than for 10 seconds, otherwise the device may be damaged.
- Never input more than 36V DC, 25V AC between the COM input (9) and the 10A input (8).
| Measurement range | Accuracy | Resolution |
| 6A | ±(2%+30) | 0.001A |
| 10A | 0.01A |
Non-contact voltage detection
- Press and HOLD the NCV button (5) to enter electric field (EF) detection mode.
- Place the sensor (1) up to a wire, socket, or any surface with hidden wiring. When the sensor of the device detects the electric field, the device will emit a beeping sound. The closer the device is to the object, the louder the signal will be.
Specifications
| Max. voltage | 750V AC, 1000V DC |
| Max. current | 10A |
| Voltage measurement range | 6V AC/DC, 60V AC/DC, 600V AC/DC, 750V AC / 1000V DC |
| Max. measured voltage drop | 600mV |
| Resistance measurement range | 600Ω / 6kΩ / 60kΩ / 600kΩ / 6MΩ / 60MΩ |
| Capacitance measurement range | 10nF / 100nF / 1µF / 10µF /100µF / 1mF / 10mF / 60mF |
| Overload protection | 750V AC, 1000V DC, 10A |
| Overvoltage category | Cat. IV |
| Input impedance | 10MΩ |
| Counts | 6000 |
| Non-contact voltage detection (NCV) | + |
| Diode test | + |
| True root-mean-square measurement (True RMS) | + |
| Sound alert | + |
| Auto-off | 15 min. |
| Backlight | + |
| Operating temperature range | 0… +40°C / 32… +104°F |
| Power supply | 2pcs AAA 1.5V alkaline batteries |
The manufacturer reserves the right to make changes to the product range and specifications without prior notice.
Care and maintenance
Always test the device prior to using it. Use the device only within the permitted range. Failure to follow these instructions may result in electric shock, fire and/or personal injury. When measuring voltage, do not exceed the input voltage of DC 1000V or AC 750V. When changing functions and ranges, always remove the test probes from the test points. Do not use the device if it is not working properly. Please note that the parameters of the power supply must comply with the technical characteristics of the device. Do not try to disassemble the device on your own for any reason. For repairs and cleaning of any kind, please contact your local specialized service center. Protect the device from sudden impact and excessive mechanical force. Store the device in a dry cool place. Only use accessories and spare parts for this device that comply with the technical specifications. Never attempt to operate a damaged device or a device with damaged electrical parts! If a part of the device or battery is swallowed, seek medical attention immediately.
Battery safety instructions
Always purchase the correct size and grade of battery most suitable for the intended use. Always replace the whole set of batteries at one time; taking care not to mix old and new ones, or batteries of different types. Clean the battery contacts and also those of the device prior to battery installation. Make sure the batteries are installed correctly with regard to polarity (+ and –). Remove batteries from equipment that is not to be used for an extended period of time. Remove used batteries promptly. Never short-circuit batteries as this may lead to high temperatures, leakage, or explosion. Never heat batteries in order to revive them. Do not disassemble batteries. Remember to switch off devices after use. Keep batteries out of the reach of children, to avoid risk of ingestion, suffocation, or poisoning. Utilize used batteries as prescribed by your country’s laws.
Levenhuk International Warranty
Levenhuk products, except for their accessories, carry a 5-year warranty against defects in materials and workmanship. All Levenhuk accessories are warranted to be free of defects in materials and workmanship for six months from the purchase date. The warranty entitles you to the free repair or replacement of the Levenhuk product in any country where a Levenhuk office is located if all the warranty conditions are met.
For further details, please visit: levenhuk.com/warranty
If warranty problems arise, or if you need assistance in using your product, contact the local Levenhuk branch.
FAQ
What should I do if the device does not power on?
Check battery installation and ensure correct polarity. Press and hold the power button for 3 seconds to turn on.
How can I save measurement data?
Press the HOLD button to save data during measurements.
What is the maximum voltage this device can measure?
The device can measure up to DC 1000V or AC 750V.