Home > TekPower TP4000ZC PC based RS232-Interaced Auto Ranging Digital Multimeter Item

TekPower TP4000ZC PC based RS232-Interaced Auto Ranging Digital Multimeter
RatingCustomer rating is 3 of 5
BrandMastech
List Price$69.95
Special Price
Lowest New Price$34.99
Features
  • AC/DC V/A Resistance Capacitance Frequency Temperature DIode Test Continuity Buzzer
  • Auto/Manual Range Selectable
  • PC RS232 Interface, Software Included
  • Relative value display
  • Special Price for Father's Day only 1 Year Warranty
Categories Electrical   Cordless Electric   Eco-friendly (special_merchandising_browse-bin)   Cordless  

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Description
The Tekpower TP4000ZC is a digital multimeter together with a RS232 interface, via which you can connect your PC to monitor the real time measurement and in addition plot and save your data on your computer. This meter is auto/manual range selectable, you can use it to measure a wide range of parameters counting AC/DC voltage and existing, as well as resistance, capacitance, frequency and so on. This meter is brand new in its factory box together with a one year manufacturer's warranty. Accessories contain Test leads, 2 AA alkaline batteries, Thermo probe, RS232 cable , Software & Customer manual.

Customer Reviews
Customer rating is 4 of 5  ok price, ok shipping, good quality   2010-08-17
By Aid
This device does not function exactly as specified, and it was a little pricy for the features. It did include some nice extras, but I had to replace the fuses right out of the box. Quality was otherwise good. Might buy again for lower price.
Customer rating is 3 of 5  OK for the price   2010-08-08
By Tom Servo
My First impressions:

Positive things:
Meter uses two "AA" size batteries (I don't like 9V batteries!)
Meter is an auto ranging meter (not manual ranging like cheaper meters). Input impedance is 10 MOhm and has a 3-3/4 digit display.
RS232 connectivity sounds like an interesting feature, although I have not tested it yet
Meter comes with rubber slip-on protector (Like another reviewer pointed out it's red instead of yellow). The slip-on has holders on the back for the probes to clip onto for storage (although the leads would still dangle around)
Meter also comes with probes, thermocouple for temp measurements, RS232 cable, software CD and "generic" batteries (although the first thing I would do is replace the included batteries with alkaline AAs)
Meter can measure:
AC/DC voltage, AC/DC current up to 10 amps, Resistance up to 40 MOhms, Diode test, Continuity, Temperature
Capacitance up to 100uF. Note that the manual warns it may take up to 15 seconds to test/display a 100uF capacitor. Some other meters can measure higher value capacitors > 100uF, although I think testing large electrolytic capacitors with any multimeter may not give accurate results. (I have seen bad electrolytic caps test good with the cap test on multimeters)
Frequency 10Hz to 10MHz (according to the manual) as well as Duty Cycle (0.1% to 99.9%)
The case quality and buttons are better than I expected, I don't think the build quality is bad for the price.

Negative things:
The continuity beeper is too quiet, especially in noisy environments.
The LCD display is NOT backlit. This is a drawback if you work in dark places as the display would be unreadable unless holding a flashlight but your two hands are typically holding the probes.
The "instruction manual" is a joke. It's a folded piece of paper, with really small print. However if you're considering buying this you most likely know how to use a multimeter.

Overall it's an OK meter for the price. If you know how to use a multimeter and only occasionally need to use one this one will probably fit the bill. If you use one on a more-or-less daily basis, in noisy or dark places then you might consider a better (more expensive) meter.

A slightly more expensive alternative to this TekPower meter is Mastech AC/DC Auto/Manual Range Digital Multimeter, MS8268
This Mastech meter appears to have a backlit display, can test hFE (transistor gain) which the TekPower cannot, and has an input jack warning feature so you have some protection against doing something dumb like trying to measure voltage with the probes in the current measurement jacks (if you do this you may blow the meter's internal fuse and will have to open it up to replace it)

Customer rating is 2 of 5  Poor quality and a low price   2010-04-29
By David Riveros Ramos (Lima, Peru)
Definitely disappointed at this purchase. I was looking for one sturdy cheap multimeter. It is cheap indeed but definitely the quality is very low. Poor metering and a very cheap look, I do not recommend it at all.
Customer rating is 4 of 5  VERY GOOD MULTIMETER   2010-02-01
By C. Jarecki (Seal Beach, CA, USA)
I purchased this multimeter for my business and home, and it is very accurate. It is full of features that would put it at a much higher price in another brand such as Fluke etc. Its a very good deal.
Customer rating is 4 of 5  Nice Multimeter   2010-01-01
By C. K. Jenks (Ypsilanti, MI USA)
I got this to use with the Make: Electronics book by Charles Platt. I had one of the Electrical Engineers I work with help me pick it out of the listing on Amazon.

It's good meter, with all the functions that I want and need. Including an Auto-off Feature after 30 minutes of not being used. I'll definitely recommend this one other people.

The reason I give it only 4 (can't seem to give it 3.5 stars) stars are the following:

1) The "User Manual" is a folded sheet of paper about 8.5 x 14 with very small print.

2) The temperature probe, in the manual says is color coded, but is one solid yellow peice. You have to look really hard to see the + and - symbol so you can get the probe plugged in right.

3) The Only option for doing temperature tests is Celsius. I live in one of the few countries that still does everything in Fahrenheit, and there does not seem to be an option to change between the two scales.

The last two things I have to say about it, is the plastic / rubber like protector may not be yellow. Mine is red, with 2 lead holders on the back. Color isn't that important, and the lead holders were nice.

I also really seem to have to press with the leads to make sure the connection is right. However I've been told that is the case with all multimeters. The Electrical Engineers at work liked it when I showed it to them.


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