Velleman PMLCDL LCD Digital Panel Meter

Velleman PMLCDL LCD Digital Panel Meter

Brand:| Model: PMLCDL
Overview
Velleman's LCD digital panel meter is designed as a digital DC voltage display meter for hobbyists and for industrial applications where accuracy is important.
Highlights
  • 200 mV full scale input sensitivity
  • Large 1/2" numerical display
  • Automatic polarity indication
  • Guaranteed zero reading for 0V input
  • Greater than 100M ohm input impedance
Part # 
320-241
Weight: 0.09 lbs.  
IN STOCK
List Price$10.99
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Part # 320-241
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Product Details

Velleman PMLCDL LCD Digital Panel Meter

Velleman's LCD digital panel meter is designed as a digital DC voltage display meter for hobbyists and for industrial applications where accuracy is important. Over range indication informs a user of over-voltage conditions. Two to three readings are taken each second to ensure display reading integrity. For portability, this panel meter operates off of a 9V battery. Dimensions: 1.8" H x 2.7" W x .38" D.

Specifications: • Maximum display: 1999 counts (3-1/2 digits) • Measurement method: Dual-slope integration A/D converter system • Accuracy: ±0.5%.



Velleman PMLCDL LCD Digital Panel Meter
  • BrandVelleman
  • ModelPMLCDL
  • Part Number320-241
  • UPC836479003682
  • Product CategoryPanel Meters
  • Unit of MeasureEA
  • Product Rating
    (5 Reviews)
  • Weight0.09 lbs.
  • California Prop 65

    Warning: California residents only. Please note per Proposition 65 that this product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

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Reviews

Velleman PMLCDL LCD Digital Panel Meter
Velleman PMLCDL LCD Digital Panel Meter is rated 3.2 out of 5 by 5.
Rated 1 out of 5 by from Part was usedThe part I had received was obviously used. The part had been previously soldered and poorly at that. Not an issue with the manufacturer but PE.
Date published: 2013-06-23
Rated 4 out of 5 by from It works fine but..Hello,First I must admit I am not a digital expert so I tried to figure out from the spec sheet how to use this meter in place of my analog 50 microampere meter...A few specs were for the most part vague to me..What I needed was to find out what voltage the common rail was ,and the common mode voltage range for the differential input to see if my circuit would accept it..I E mailed Velleman and the person was very helpful but did not know much more about the chipset usedand indicated I needed a separate power source not in common to the input source...I decided to power up the display with data inputs shorted and see what voltage was present..I found it was 2.89 volts below the positive voltage supply and that my circuit could accommodate it..I used the ICL7106 chip or equivalent as a guide .. There were some errors in the supplied spec sheet also such as power drain. In conclusion, it works fine in my circuit but only by chance..On the positive side it is very very low cost for what it does and if you are careful it should work for you too..I just wish Velleman would be more specific in the data but I understand they do not manufacture this device and these are the suppliers specs..All in all it does work with a comon power and input source but you must be careful in your design ..
Date published: 2012-05-22
Rated 4 out of 5 by from Best value in DPM'sMy first order was for 10 of these to be used in a bench power supply. I recently purchased 4 more of these meters. You vote with your wallet.The conductive elastomer had shifted on one causing the "1" digit to not work. I took it apart and repositioned it and it now works great.One of the other meters was +.7% high, which is .2% out of tolerance- no problem I just adjusted it in with the calibration adjust pot on the meter. The others were 0%, +.27, and +.32%. The pot should have less range to make adjustment easier.The soldering on one meter was very poor but it worked ok.Note: this meter is 10 M Ohm input not the 100 M Ohm as incorrectly stated on the spec sheet. Also note the inputcurrent is 1 mA. The value given is for the LED version.I have designed Digital Panel Meters and can say this is the best value for the $.
Date published: 2011-12-10
Rated 4 out of 5 by from I gave it a nice review, but,,,,,,,,,,,,,,,,,,,If you want to use this meter to read any voltages greater then 200mv, you are going to need the resistor kit from Velleman. I wanted my meters to read 1.6 volts and needed 100K ohm, 1/2 watt .1% and a 9.90M ohm 1/2 watt .1% resistors, that Parts Express does not sell, and it is one gigantic hassle. You won't easily find these resistors any where and the meter will not work for these voltages without them.
Date published: 2010-03-08
Rated 3 out of 5 by from Different than I expected.Good little meter, it did what it said it would.I expected that it would come with a plug to attach a 9 volt battery for the operating power. I expected that there would be wires to connect the (measured)incoming voltage. I was wrong, both came with posts to solder wires for the connections. Not a problem, just surprised. It also comes with an open back that exposes the components. Instructions are confusing, but not needed.With all that said, I would purchase this meter again, it does what it says it will do!Very low cost for the product.(Not made in the USA)
Date published: 2008-10-14

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Velleman PMLCDL LCD Digital Panel Meter

Vague information from Velleman

I e-mailed Velleman about this meter to clarify the instructions. They replied in less than 1/2 hour with an enlarged photo of the resistor/jumper (a zero ohm SMT resistor) but did not answer as to how to calculate the ratio for 40V and where to install the resistors? Do you put Ra across the installed Ra and Rb in place of the removed jumper?
Asked by: CLBiggs
Sometimes even the mfgrs don't supply enough info for the hobbyist. At the price of the Velleman - I'd say buy one and play with it. I understand your frustration and with many of my DIY and professional projects - I often spend a lot of money on prototyping before doing a final build.
Answered by: MarkAJH
Date published: 2012-08-26

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