AADE L/C Meter

mxhead.htm

Milestone
Technologies

a division of Milestone Technologies, Inc.
"Everything for the Morse Enthusiast!"

AADE

L/C Meter IIB

Digital Inductance and Capacitance Meter

Complete Kit or Assembled and Tested

From Amost All Digital Electronics, the L/C Meter IIB is a hand-held, digital inductance/capacitance meter with a four digit display, a maximum resolution of one nanoHenry (1 nHy) or a tenth of a picoFarad ( .01 pF) and a maximum range of 150 mHy / 1.5 uF. The unit features AUTOMATIC RANGING and SELF-CALIBRATION. "It is a solder it together and it works kit."

SPECIFICATIONS

Range:

.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)
AUTOMATIC RANGING

Accuracy:

1% of reading typical

Typical means the average error of 83 different components compared to an

HP4275A digital L/C meter (test frequency 1MHz) for components ranging from .1uHy to 1mHy and 2.7pf to .068uF,
B&K 878 digital LCR meter (test frequency 1KHz) for components ranging from 1mHy to 100mHy and .1uF to 1.6uF.

(L/C Meter II is characterized for hobby or non-critical commercial use)
SELF CALIBRATING

Display:

16 character LCD display module
Four digit resolution
Direct display in engineering units (ie: Lx= 1.234 uHy / Cx= 123.4 pF)

jumper option to display pF, nF, uF (ie: 10 nF instead of .01 uF)

Operating modes:

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)
READY MATCHnMODE -

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

READY MATCHuMODE -

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

READY MATCH%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 PIC16C61 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.

PRICES:

AA-LCM2B KIT only $99.95

AA-LCM2BA ASSEMBLED only $129.95

The kit includes one or more devices which are extremely sensitive to electrostatic discharge. We recommend the use of an antistatic wrist strap

Order on-line, or call 800-238-8205 for credit card orders
or call 303-752-3382 for more information

Here's a review that Patrick Kvitkauskas posted on QRP-L:

From: pmk@

Subject: Just finished the LC IIB semi long

Date sent: Tue, 25 Mar 1997 07:53:15 EST

I ordered the LC IIb Friday night after visiting the web site around 10:30 est and Marshall had his watts line forwarded to his house and interrupted him I am sure but he was very nice. I went to the local surplus store to get some parts for the 38s updates and mods and picked up a handful of toroids knowing the LC meter was going to show up in a day or two. When I got home there it was in the mailbox (Monday, he must have shipped it Saturday). I pushed aside the 38s on the work bench and opened the box.

Construction. Well, I'll have to say it was very harmless to put together and went together very well. It said install the parts in no particular order and away I went. I always stress to everyone read the instructions before you start but thought it looked to simple and away I went. There were a few notes there that would have saved me about 5 minutes but still had it operating in under a hour. The only calibration was setting the contrast on the LCD display and then away I went.

Operation. I am not an engineer or guru by any means (that is why I purchased it) but I started picking up caps and it was working great there. I had the toroid wound up for the stock 38s 5 watt mod. Shorted the test jacks to zero the meter, then put in the wound up toroid. Low and behold there it was 2.874 micro Henry. Yeah. Supposed to be 2.9 uHy but that is close enough if you round it off....

All in all I am very happy now and think I am going to try it out on the Pixie 2 that Chuck Adams had on his web site.

I wish I knew more on what I was doing and all the features it will do for those more experienced than myself.

My thanks to Marshall

72/73 de Patrick KD4OBQ

And this comment from Yasuo Itoh, JN2AMR--

"I prior purchased L/C Meter kit and Frequency counter/display kit, these kit is a superb product. I utilize this product. "

And from Mike Melland, W9WIS--

"I purchased the L/C Meter IIB through you and got it assembled shortly after it arrived last week. I had read over the past several years lots of rave reviews but had to see for myself. The result .... What a great device! It went together easily and works better than described. I brought it to work and took it over to the lab at the college where I work and everyone there is amazed at it's accuracy (especially considering the price). It compares VERY favorably with our sophisticated laboratory instruments and easily meets AADE's 1% reading comparisons and will be a permanent part of my home shack/bench from now on."

Back to AADE Products Page
mxfoot.htm

Back to Home Page
Questions or Comments? Write to us!

All text and images in this web site (comprising the registered domains mtechnologies.com, morsex.com, and ohr.com) are the intellectual property of Milestone Technologies or are used with permission of the copyright holder. Some images are in the public domain; others are not-- please ask before "borrowing" them. Copyright ©1996-2012, Milestone Technologies, Inc. All Rights Reserved

rev:CBY112