ANENG ST212 Clamp Meter
Introduction
This document provides detailed instructions and specifications for the ANENG ST212 digital clamp meter. It is designed for accurate and reliable measurements in various electrical applications.
Features
- High precision and stable performance.
- Integrated design, portable and easy to use.
- Large screen LCD display for clear readings.
- Full function protection against overload.
- Automatic shutdown and manual/automatic range switching.
Device Overview
The ANENG ST212 clamp meter features the following components:
- 1. Jaw: For measuring current by clamping around a conductor.
- 2. REL/NCV Button: For Relative mode and Non-Contact Voltage detection.
- 3. LCD Display: Shows measurement values and indicators.
- 4. Function Dial: Selects measurement functions and ranges.
- 5. Power/Backlight Button: Turns the device on/off and activates the backlight.
- 6. SEL Button: Selects specific functions within a dial setting (e.g., AC/DC).
- 7. Positive Test Lead Jack: For connecting the red test lead.
- 8. Negative Test Lead Jack (COM): For connecting the black test lead.
- 9. Battery Compartment: Houses the power source.
General Specifications
- Display Count: 6000 counts
- Working Environment: 18°C to 28°C (70°F to 82°F), relative humidity < 75%
- Storage Temperature: -10°C to 50°C
- Temperature Coefficient: 0.1°C/°C (approx.)
- Power Supply: 2 x 1.5V AAA batteries
- Dimensions: (Approximate, based on typical design)
- Safety Standards: EN-61010-1, EN-61010-2-030, EN61010-2-032, CAT II 600V
Measurement Functions and Specifications
The ANENG ST212 supports a wide range of measurements:
AC Current Measurement
| Range | Resolution | Accuracy | Frequency Response |
|---|---|---|---|
| 60A | 0.01A | ±(2.5% + 30) | 40Hz - 1000Hz |
| 400A | 0.1A | ±(2.5% + 30) | 40Hz - 1000Hz |
Overload Protection: 1000A AC (Max)
DC Current Measurement
| Range | Resolution | Accuracy |
|---|---|---|
| 60A | 0.01A | ±(2.5% + 30) |
| 400A | 0.1A | ±(2.5% + 30) |
Overload Protection: 400A DC (Max)
DC Voltage Measurement
| Range | Resolution | Accuracy | Input Impedance |
|---|---|---|---|
| 600V | 0.1V | ±(0.5% + 5) | Approx. 10MΩ |
DC Millivolts Measurement
| Range | Resolution | Accuracy | Input Impedance |
|---|---|---|---|
| 600mV | 0.1mV | ±(0.5% + 3) | Approx. 10MΩ |
Display shows "OL" if input exceeds 600mV.
AC Voltage Measurement
| Range | Resolution | Accuracy | Frequency Response | Input Impedance |
|---|---|---|---|---|
| 600V | 0.1V | ±(0.8% + 5) | 45Hz - 1000Hz | Approx. 10MΩ |
Overload Protection: 600V AC (Max)
AC Millivolts Measurement
| Range | Resolution | Accuracy | Frequency Response | Input Impedance |
|---|---|---|---|---|
| 600mV | 0.1mV | ±(0.8% + 5) | 45Hz - 1000Hz | Approx. 10MΩ |
Display shows "OL" if input exceeds 600mV.
Resistance Measurement
| Range | Resolution | Accuracy |
|---|---|---|
| 6kΩ | 0.001kΩ | ±(0.8% + 3) |
| 60kΩ | 0.01kΩ | ±(0.8% + 3) |
| 600kΩ | 0.1kΩ | ±(0.8% + 3) |
| 6MΩ | 0.001MΩ | ±(0.8% + 3) |
| 60MΩ | 0.01MΩ | ±(0.8% + 3) |
Overload Protection: 250V DC or AC
Capacitance Measurement
| Range | Resolution | Accuracy |
|---|---|---|
| 60nF | 1nF | ±(10% + 40) |
| 600nF | 10nF | ±(10% + 40) |
| 6.000μF | 100nF | ±(2.5% + 20) |
| 60.00μF | 1nF | ±(2.5% + 20) |
| 600.0μF | 10nF | ±(2.5% + 20) |
| 6.000mF | 100nF | ±(2.5% + 20) |
| 60.00mF | 1μF | ±(2.5% + 20) |
Overload Protection: 250V DC or AC
Temperature Measurement (with K-Type probe)
| Range | Accuracy |
|---|---|
| -40°C to 400°C (-40°F to 752°F) | ±(1% + 3) |
| 400°C to 1000°C (752°F to 1832°F) | ±(1% + 3) |
K-Type thermocouple sold separately or included as accessory.
Frequency Measurement
| Range | Resolution | Accuracy | Input Voltage Range |
|---|---|---|---|
| 10Hz | 0.01Hz | ±(0.1% + 3) | 40V - 1000V |
| 100Hz | 0.1Hz | ±(0.1% + 3) | |
| 1kHz | 1Hz | ±(0.1% + 3) | |
| 10kHz | 0.01kHz | ±(0.1% + 3) | |
| 100kHz | 0.1kHz | ±(0.1% + 3) | |
| 10MHz | 1kHz | ±(0.1% + 3) |
Special Functions
Non-Contact Voltage (NCV) Detection
- The NCV function detects AC voltage without direct contact with the conductor.
- When AC voltage is detected, the meter will beep, and the display will show "EF".
- The sensitivity is adjustable, indicated by the frequency of the beeps.
- This function provides a convenient and safe way to check for voltage presence.
Relative Value (REL) Function
- The REL button allows setting a reference value for measurements.
- Subsequent readings are displayed relative to this set reference value.
- Press the REL button again to exit REL mode.
- Press and hold the REL button for 2 seconds to clear the reference value.
Operating Instructions
General Operation
- Select the desired measurement function and range using the function dial.
- Connect the test leads to the appropriate jacks (COM and the relevant measurement jack).
- Perform the measurement.
NCV Detection Operation
- Select the NCV function using the dial or button.
- Bring the jaw of the clamp meter near the conductor to be tested.
- The meter will beep and display "EF" if AC voltage is detected.
AC/DC Voltage and Millivolt Measurement
- Select the appropriate DC V, AC V, DC mV, or AC mV function.
- Connect the red test lead to the V jack and the black test lead to the COM jack.
- Connect the test leads to the circuit under test.
- Read the measurement on the LCD display.
- Note: Ensure the input voltage does not exceed 600V. For millivolt ranges, the display shows "OL" if the reading exceeds the maximum value.
AC/DC Current Measurement
- Select the appropriate AC A or DC A function.
- Open the jaws of the clamp meter.
- Clamp the jaws around the conductor carrying the current to be measured. Ensure the conductor is centered within the jaws for accuracy.
- Read the measurement on the LCD display.
- Note: Ensure the current does not exceed 600A.
Resistance Measurement
- Select the resistance (Ω) function.
- Connect the red test lead to the Ω jack and the black test lead to the COM jack.
- Connect the test leads to the component or circuit under test.
- Note: Ensure the circuit is de-energized and any capacitors are discharged before measuring resistance.
Continuity Test
- Select the continuity function (indicated by a buzzer symbol).
- Connect the test leads to the COM and Ω jacks.
- Connect the test leads to the circuit under test.
- If the resistance is less than approximately 50Ω, the buzzer will sound, indicating continuity.
- Note: Ensure the circuit is de-energized.
Capacitance Measurement
- Select the capacitance (F) function.
- Connect the red test lead to the F jack and the black test lead to the COM jack.
- Connect the test leads to the capacitor terminals.
- Note: Ensure the capacitor is discharged before measurement.
Temperature Measurement
- Connect the K-Type thermocouple to the V/Ω and COM jacks.
- Select the temperature (°C/°F) function.
- Press the "C/F" button to switch between Celsius and Fahrenheit readings.
- Place the tip of the thermocouple probe on the object to be measured.
- Note: The K-Type thermocouple is required for this measurement.
Frequency Measurement
- Select the frequency (Hz) function.
- Connect the red test lead to the V jack and the black test lead to the COM jack.
- Connect the test leads to the signal source.
- Note: The input voltage for frequency measurement should be between 40V and 1000V.
Safety Precautions
- Read this manual carefully before operating the clamp meter.
- Do not measure voltages higher than 600V CAT II.
- Do not measure currents higher than 600A.
- Always ensure the test leads are properly inserted and connected before taking measurements.
- Do not use the meter if it appears damaged or if the test leads are frayed.
- Replace batteries promptly when the low battery indicator appears.
- Avoid exposing the meter to extreme temperatures, humidity, or direct sunlight.
- Ensure proper insulation when working with live circuits.
- The meter is designed for use in environments conforming to CAT II 600V.
Accessories
- 1 x ANENG ST212 Clamp Meter
- 2 x Test Leads
- 1 x K-Type Thermocouple
- 1 x User Manual
- 2 x 1.5V AAA Batteries
