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Inductance /capacitance meter l/c meter iib unbuilt kit


Circuit and firmware COPYRIGHT; 1996-2006
is a hand-held, digital inductance meter / capacitance meter
a maximum resolution of 1 nHy / .01 pF
a maximum range of 150 mHy / 1.5 uF.
AUTOMATIC RANGING and SELF-CALIBRATION.
L/C Meter IIB Kit has the same accuracy and functionality of the assembled unit at a saving of $30
Assembly takes less than one hour if you read the instructions and less than four hours if you don't.
99% of units work right off. If not, unit can be returned for FREE repair ($4 return postage).
More than 5000 sold in over 50 countries
Unconditional, no questions asked, money back guarantee.
* .001 uHy (1 nHy) to 100 mHy (most units measure to 150 mHy)
* .010 pf to 1 uF (most units measure to 1.5 uF)
* Typical means the average error for 60 inductance calibration standards and 82 capacitance calibration standards
* ERROR ANALYSIS 5/1/2005 detailed analysis results
* 16 character LCD display module
* Direct display in engineering units (ie: Lx= 1.234 uHy / Cx= 123.4 pF)
* option to display pF, nF, uF (ie: 10 nF instead of .01 uF)
When the Lx and Cx switches are off the ZERO switch acts as a MODE SELECT.
* The following modes are sequentially selected
* READY MEASUREnMODE - measure Lx or Cx and display in nano units when applicable
* READY MEASUREuMODE - measure Lx or Cx and display in micro units (ie: .01000 uF instead of 10.00 nF)
* first measures your reference component Lz or Cz and displays it's value in nano mode
* measures subsequent components, Lx or Cx, and displays the difference (Lz-Lx) or (Cz-Cx) in nano mode
* first measures your reference component Lz or Cz and displays it's value in micro mode
* measures subsequent components, Lx or Cx, and displays the difference (Lz-Lx) or (Cz-Cx) in micro mode
* first measures your reference component Lz or Cz and displays it's value in nano units
* measures subsequent components, Lx or Cx, and displays the percentage difference
* (Lx-Lz)/Lz*100 or
* (Cx-Cz)/Cz*100 as percent.
* range is -100% to +9999%
* maximum resolution is 00.01%
L/C Meter IIB zeros out stray inductance and capacitance by storing their values in RAM and subtracting them from the measured values. It can zero out any value in it's range allowing longer test leads and slightly improved accuracy over L/C Meter II.
L/C Meter IIB works by measuring the shift in frequency caused by inserting an unknown into it's oscillator tank circuit. A PIC micro-controller measures the frequency before and after. It then computes the value of the unknown using a floating point math package and displays the result on a 16 character intelligent LCD display.
L/C Meter IIB will NOT measure inductors designed for 60 or 120 Hz applications such as power transformers, filter chokes or motors. The minimum test frequency is about 20KHz and these devices have enormous core losses at that frequency.



Inductance /capacitance meter l/c meter iib unbuilt kit