Wayne Kerr 3255B Inductance Analyzers (20 Hz ~ 500 kHz)

Measurement Function: Z, Ø, L, C, Rac, Rdc, Q, D, turns ratio

Frequency Range:  20 Hz to 500 kHz

Drive Level: 

   Source impedance 50Ω

   1 mV to 10V rms into open circuit 

   50 µA to 200 mA rms into short circuit 

   Automatic Level Control (ALC) maintains level applied to DUT at ±2%, ±1 mV of set voltage or ±2%, ±0.1 mA of set current, reduces to ±4% below 100 Hz.

Internal DC Bias (Option): 1 mA to 1 A

Measurement Speeds: 4 speeds selectable (20/sec max)

Measurement Ranges: 

   R - 0.05 mΩ to > 2 mΩ 

   L - 1 nH to >1000H 

   C - 0.01 fF to > 250mF 

   Turn Ratio 100:1 to 1:100

Accuracy:

   L/Rac/Z/Cp ±0.1% 

   Q ±0.1% (Q+1/Q) 

   D ±0.001 (1+ D2) 

   Rdc ±0.5%

Input Specification:

   Power supply 230 V AC ±10% or 115 V AC ±10% (selectable) 

   50 to 400 Hz

   150VA maximum consumption

Display:

   High contrast monochrome LCD 320 x 240 dot with CFL back lighting

   Visible area 115 x 86mm

   Viewing angle 45°

Measurement Connections:

   4 front panel BNC sockets

   4-wire (Kelvin) measurements with screen at ground potential

   Equivalent circuit symbols on screen