PF109A type digital three-phase multifunction meterDetailed product description：

The PF109A power frequency electrical parameter tester adopts a high-speed and high-precision A/D converter to synchronously sample three-phase power frequency voltage, current, phase, and frequency under the control of a microprocessor, achieving long-term high-precision measurement of three-phase power frequency voltage, current, power, phase, frequency, and power factor. It uses a large screen LCD display and can display multiple parameters of the three phases simultaneously.
This instrument is currently one of the highest performance instruments for measuring power frequency electrical parameters in China. It can be widely used in laboratories, metrology institutes, power systems, and other departments as a 0.05 level three-phase power frequency voltage, current, power, 0.2 level phase standard, and 0.01 level power frequency standard or on-site detection.

1、 Technical requirements
1. Environmental requirements for use
This instrument complies with the provisions of Group I instruments in the national standard GB6587-86 "General Principles for Environmental Testing of Measuring Instruments": rated operating temperature of 18 ℃~22 ℃, humidity ≤ 86% RH, and allowed to operate at 5 ℃~45 ℃
2. Power supply AC 220 ± 5% (50Hz ± 5%)
3. Approximately 30W of power consumption
4. Preheating time accurately measured for 30 minutes
5. Dimensions: 285mm × 250mm × 110mm (L × B × H)
6. Weight 4Kg

2、 Performance indicators of PF109A digital three-phase multifunction meter
1. Voltage
Measurement range; 3－800V
Measurement range: 30V, 60V, 100V, 150V, 250V, 300V, 450V, 600V (expandable)
Measurement accuracy: 3V-750V, error ≤ 0.05%
Wiring method: three-phase four wire three-phase three wire
Display mode; Direct reading: 75 grids, 100 grids, 120 grids, 150 grids, five types
Input impedance: R ≥ 2M Ω
Temperature coefficient: better than 10ppm/℃ within 5 ℃~45 ℃
2. Current
Measurement range: 0.1A-50A
Measurement range: 1A 2.5A 5A 10A 25A 50A (expandable)
Measurement accuracy: 0.1A-50 difference ≤ 0.05%
Wiring method: three-phase four wire three-phase three wire
Display mode: Direct reading 75 grids, 100 grids, 120 grids, 150 grids, five types
Input impedance: 0.1 Ω
Humidity coefficient: better than 10ppm/℃ within 5 ℃~45 ℃
3. Power
Measurement range; 37.5—6000W
Measurement range: 150V × 2.5A, 300V × 2.5A, 600V × 2.5A, 150V
5A, 300V, 5A, 600V, 5A, 150V, 10A, 300V
× 10A, 600V × 10A (expandable)
Measurement accuracy: 37.5W-6000W, error ≤ 0.05%
Wiring method: three-phase four wire three-phase three wire
Measurement parameters: three-phase active power, three-phase reactive power, three-phase total power
Display mode; Direct reading: 75 grids, 100 grids, 120 grids, 150 grids, five types
Temperature coefficient: better than 10ppm/℃ within 5 ℃~45 ℃
4. Frequency
Measurement range: 30Hz-90Hz
Measurement accuracy: The error within the measurement range is less than ± 0.002 Hz
Humidity coefficient: better than 5ppm/℃ within 5 ℃~45 ℃
5. Phase and power factor
Measurement range: 0.00-360.00
Power factor:+1.000- ---1.000
Input signal: voltage 50V-400V (effective value), current 5A-12A (effective value)
Measurement accuracy: Phase error ≤ ± 0.1 ° under rated input signal state
Temperature coefficient: better than 10ppm/℃ within 5 ℃~45 ℃