Q-factor meter '' E4-5A ''.
Instruments for adjusting and controlling the PTA.The quality meter "E4-5A" was produced presumably since 1975. It is intended for direct measurement of the Q-factor of coils in the LF and HF ranges, determination of the resonant capacitance of inductance coils, the main HF parameters of two-terminal devices. Serves to control production processes; scientific research: measurements of impedance components, determination of the properties of dielectric and ferromagnetic materials. Frequency range 15 ... 250 MHz. Q-factor measurement limits: scales up to 400 from 5 to 1200; over 400 with multipliers of 1.5; 2; 2.5; 3. Measurement error of the quality factor E4-5A: from 15 MHz to 100 MHz - 10; from 100 MHz to 250 MHz - not standardized. The measurement range of the capacitor capacitance of the measuring unit is from 10 to 100 pF. The error of the LF calibration of the main capacitor of the measuring unit is 1 pF. The dimensions of the device are 450x250x330 mm. Weight 13 kg.
