Import 3-Phase Electric Meter Device With Printer — Buy in wholesale FOB from Supplier in China

The GF312B from Beijing Gfuve Electronics Co., Ltd. is a portable three-phase watt meter calibrator with an integrated printer, designed for on-site verification of three-phase and single-phase active and reactive energy meters. The unit measures AC voltage, current, active power, reactive power, apparent power, power factor, and phase angle, with harmonic analysis capability from the 2nd to the 63rd harmonic. It displays vector diagrams and waveform visualisation for both voltage and current, and stores measured data for later review. Optional current clamps extend measurement range to 3000A. The built-in thermal printer outputs calibration certificates and measurement records directly in the field.

The instrument uses direct connection for standard current ranges, with clamp-on CTs available in 5A, 20A, 100A, 500A, 1000A, 2000A, and 3000A variants to suit different conductor sizes and applications. The harmonic analysis function covers wave distortion factor and individual harmonic components up to the 63rd order, which is standard for power quality assessment in modern grids. The vector diagram display aids in diagnosing wiring errors and phase sequence problems. The waveform capture for both U and I allows visual verification of signal integrity. Typical accuracy class for this category of portable calibrator is 0.05 or 0.1, though buyers should confirm the specific accuracy with the supplier.

Utilities, meter manufacturers, and third-party calibration laboratories are the primary users of this equipment. The printer function eliminates the need for manual transcription in the field, reducing clerical error for meter audits and commissioning tests. The CT ratio measurement function supports verification of installed current transformers without disconnection. Buyers should confirm with Beijing Gfuve Electronics Co., Ltd. whether the unit includes IEC 62053 or equivalent test routines, and whether software for data download and report generation is supplied. The response rate for this supplier is currently zero, so direct contact through the listed address at Fortune Street, Chaoyang Road, Beijing is advisable.

Beijing Gfuve Electronics Co., Ltd. is located at 01117-8 Fortune Street, No.67 Chaoyang Road, Beijing 100025, China. The supplier is classified under the imported tier with a harbor trust designation. The response rate is recorded at 0.00 percent, and the average response time is zero hours, which indicates no recent engagement data is available through the platform. The company specialises in electrical test and measurement equipment, specifically the GF312B portable calibrator reviewed here.

The listing provides no information about factory size, number of employees, annual revenue, export markets, or client references. There is no mention of ISO 9001, ISO 17025, or other laboratory accreditation. The supplier address in Chaoyang District, Beijing, places it within the capital's electronics manufacturing corridor. Buyers should verify directly with Beijing Gfuve Electronics Co., Ltd. whether the company manufactures the GF312B in-house or sources it from a partner factory, as this affects warranty and calibration support. The zero response rate means email and telephone contact should be attempted simultaneously, and a factory visit or third-party audit is advisable before placing a substantial order.