The SMG2000B Dual-Clamp Digital Phase Volt-Ammeter is a multifunctional instrument designed for on-site testing, characterized by high precision, high stability, low power consumption, and ease of use. It can directly measure AC voltage and AC current without opening the tested circuit, determine the phase between two voltages, two currents, and voltage-current, and indirectly measure power factor and power of the circuit.
Additionally, it can identify three-phase sequence, transformer connection group, inductive and capacitive circuits, test secondary circuits and differential protection systems, read phase relationships between various CT groups in differential protection, check the correct wiring of electricity meters, and inspect line equipment. The instrument features an extra-large LCD display with 40mm high characters and backlight, ensuring clear visibility. It is suitable for applications in electric power, petrochemical, metallurgy, railway, meteorology, industrial and mining enterprises, scientific research institutions, and metrology departments.
| Impact Quantities | Reference Conditions | Operating Conditions | Remarks |
|---|---|---|---|
| Ambient Temperature | 23°C ± 1°C | -10°C ~ 40°C | — |
| Ambient Humidity | 40% ~ 60% | < 80% | — |
| Signal Waveform | Sine Wave | Sine Wave | β = 0.05 |
| Signal Frequency | 50Hz ± 1Hz | 45Hz ~ 65Hz | — |
| Instrument Operating Voltage | 9V ± 0.1V | 9V ± 1V | — |
| Measured Phase Current Amplitude | 1A ± 0.1A | 10mA ~ 20.0A | — |
| Measured Phase Voltage Amplitude | 100V ± 10V | 30V ~ 600V | — |
| External Electric and Magnetic Fields | Should be avoided | ||
| Position of Measured Conductor | Measured conductor positioned at approximate geometric center of the clamp jaws | ||
| Function | Phase, AC Current, AC Voltage, AC Leakage Current, Direct Sequence Testing; Transformer Grouping, Inductive, Capacitive Circuit Discrimination; Power Factor, Power Indirect Testing |
|---|---|
| Power Supply | DC 9V Alkaline Battery (1.5V AA × 6) |
| Power Consumption | With backlight on: Max. approx. 35mA, continuous operation of battery approx. 40 hours Without backlight: Approx. 5mA, continuous operation of battery approx. 300 hours |
| Display Mode | LCD display with blue backlight, suitable for dim environments |
| LCD Size | 70mm × 62mm |
| LCD Display Area | 64mm × 54mm |
| Instrument Size | Length × Width × Thickness: 196mm × 92mm × 54mm |
| Jaw Size | φ7.5mm × 13mm |
| Sampling Rate | Approximately 3 times/second |
| Range | AC Voltage: 0 ~ 20V / 200V / 600V AC Current: 0 ~ 200mA / 2A / 20A Phase: 0 ~ 360° |
| Measured Signal Amplitude Range | For measuring U1-U2 phase: 30V ~ 600V For measuring I1-I2 phase: 10mA ~ 20.00A For measuring U1-I2 or I1-U2 phase: 10V ~ 600V, 10mA ~ 20.00A |
| Data Hold | Press HOLD key during measurement to hold data, indicated by "DH" symbol |
| Auto Power Off | Automatically powers off approximately 15 minutes after powering on to conserve battery |
| Voltage Detection | When battery voltage is below 7.2V, low battery symbol is displayed to remind battery replacement |
| Instrument Weight | Main unit approx. 550g (with battery), clamp meter approx. 170g × 2, test line approx. 250g |
| Test Line Length | 1.5m |
| Current Clamp Line Length | 2m |
| Operating Temp./Humidity | -10°C ~ 40°C; below 80% RH |
| Storage Temp./Humidity | -10°C ~ 60°C; below 70% RH |
| Input Impedance | Input impedance for voltage measurement: 2MΩ each range For U1U2 phase measurement: 40kΩ impedance between voltage inputs |
| Withstand Voltage | Endures 2000V / 50Hz sinusoidal AC voltage between instrument cover and battery cover screws for 1 minute |
| Insulation | Between instrument circuit and shell, and between two voltage input terminals: ≥ 10MΩ |
| Structure | Double insulation |
We are an integrated trade and manufacturing company with our own factory.
Yes, we accept OEM/ODM/OBM and can customize the built-in software of the product according to the customer's special requirements.
In normal circumstances, products in stock can be received within 5 to 7 days via the fastest international express. Other situations may vary depending on the quantity of products ordered, whether there are special customization requirements, and the delivery time chosen.
We have professional internal and external packaging to ensure the safety and stability of the products during transportation. For fragile or other special parts, we will include an extra set to ensure that the customer can use the product immediately upon receipt.
For quality issues that are not caused by human error, we provide a one-year warranty from the time the product is delivered, and lifetime technical support. Other after-sales issues will be addressed by our professional technical staff within 24 hours. The product comes with a user manual and an operation video.
