PP17 portable high-precision frequency meterDetailed product description：

The PP17P portable high-precision frequency meter is a series of products of the power frequency electrical parameter tester (standard meter). It uses a high-speed and high-precision A/D converter as the core, and utilizes multiple microprocessors and large-scale programmable logic integrated circuits to synchronously sample voltage, current, and period at high speed. The effective values of voltage and current are calculated mathematically. This table is also based on internal precision standards and regularly self calibrated. At the same time, the calibration of the overall instrument adopts digital correction without the need for potentiometers, thereby reducing the uncertainty of the instrument and achieving long-term high-precision measurement of the instrument.
The PP17 portable high-precision frequency meter adopts an imported aluminum chassis and vacuum fluorescent plasma display, which has a beautiful appearance and clear display. It is currently one of the highest performance instruments for measuring power frequency electrical parameters in China. It can be widely used as a frequency measurement standard meter or on-site testing equipment in metrology institutes, industrial and mining enterprises, metrology departments of power systems, laboratories, etc.

Main technical performance indicators
Basic requirements: This instrument complies with the provisions of Group I instruments in the national standard GB8587-86 "General Principles for Environmental Testing of Measuring Instruments": the rated working temperature is 18 ℃~22 ℃, the humidity is ≤ 86% RH, and it is allowed to work at 5 ℃~45 ℃.
Measurement range: Type A 10Hz~10KHz, Type B 10Hz~1MHz, Type C 0.005Hz~1000Hz
Input voltage: 0.1V~400V Input impedance: R ≥ 2M Ω Input load: 0.1VA
Temperature coefficient: better than 10PPM/℃ within 5 ℃~45 ℃ Accuracy: 0.005%

other
Power supply: Rated voltage: 220V ± 5%
Rated frequency: 50HZ ± 5%, approximately 30W
Preheating time: Accurate measurement takes 30 minutes under rated working environment
Dimensions: 285mm × 250mm × 110mm (L × B × H) Weight: Approximately 3.5Kg