Q Meter is a high-frequency resistance measurement instrument functioned by series resonance principle, applying to test inductors, capacitors, insulators with high-frequency for their effective inductance, Q, capacitance as well as ∑，tgδvalues.
WY2851D digital Q meter has been digitally intelligentized based on the old Q meter’s structure which has improved the security of the tuning mechanical structures.

 

• Automatically Q value reading capability which enhances the accuracy and speed of measuring。
• The residual inductance is below 20nH, guaranteeing a small deviation occurred during reading the Q value at high frequency.
• Special LCD screen menu form is able to display several parameters: Q value，test frequency, tuning state, etc.
• Q value range could be automatically or manually controlled.
• Digital Q value preset which improves the reliability and speed of the batch test.
• VCO adjustable test frequency, possessing a smooth and continuous frequency change, facilitates Q value measuring with △f method.
  

Specification

1 Available frequency scope：

50kHz～50MHz. 4-digits display, in 6 ranges.
2 Q measuring range：

10～1000，including 10～100，30～300，100～1000 in 3 ranges.
3 Tolerance of Q：

±5%±3% full scale value.
4 Measuring range of inductance：

0.1µH～100mH.
5 Tolerance of inductance：

≤5%±0.02µH
6 Character of tuning capacitor：
6.1 Tunable capacitance range：

40Pf～500 Pf.
6.2 Accuracy：

±1% or 1Pf.
6.3 Fine adjustment of capacitance：

±3Pf，±0.2Pf resolution.
6.4 The residual inductance：

around 20nH.
7 Q preset：

preset range10～1000 all available. When the measuring object reaches the preset-value, a “GO” signal will appear with a beep warning tone. “NO GO” represents the rejects.
8 Size and weight: 

 415×180×170（mm）,6kg