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Description: It seems like everything plugs in to your computer these days, and this digital multimeter is no exception. This auto-ranging multimeter will test AC and DC voltage and current as well as capacitance, resistance, frequency and even temperature. It features a large, easily readable display for use in the field as well as the ability to connect to your computer for data logging, processing and analysis. It has all of the basic functions that you expect from a good digital multimeter including continuity check (with buzzer), diode test and data hold. Data logging and analysis software is included on a mini-CD and you can also download it below.

Note: The included CD contains all versions of the software. The version that has been tested to work with this unit is version 3.0. You can also just use the download link below.

Note: This meter does have a USB interface, but it’s not clearly RS232. The meter needs the proprietary software to function and you cannot simply read the data directly without a driver and the software.

Includes:

  • User Manual
  • Test Leads
  • Temperature Probe
  • 2 x “AAA” 1.5V Batteries
  • Software CD
  • USB Cable

Features:

  • Auto-Ranging
  • Shockproof Protection
  • Input Impedance: 10MΩ
  • Relative Value Measurement
  • 70×50mm LCD Display
  • AC Frequency response: 40-400 Hz
  • DC Voltage Ranges: 400mV/4V/40V/400V/1000V ±(0.5%+4)
  • AC Voltage Ranges: 400mV/4V/40V/400V/750V ±(0.8%+10)
  • DC Current Ranges: 30mA/300mA/10A ±(1.5%+10)
  • AC Current Ranges: 30mA/300mA/10A ±(1.5%+10)
  • Resistance Ranges: 400Ω/4kΩ/40kΩ/400kΩ/4MΩ/40MΩ ±(0.8%+4)
  • Capacitance Ranges: 4nF/40nF/400nF/4uF/40uF/200uF ±(3.5%+8)
  • Frequency Ranges: 100Hz/1000Hz/10kHz/100kHz/1MHz/30MHz ±(0.5%+10)

Documents:

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Customer Comments

  • Really? It clearly has an rs232 interface internally and a USB converter bolted on to cope with the current lack of serial ports on modern PCs but in 2015 a new product with closed USB drivers? Really?

    In 2015 it should be mandatory for a new design to not only have a standard USB interface but to have a published format for the data on the wire.

    And since you are supposed to be selling to people who tinker, how about expose the TTL serial interface on a header to allow it to interface to a microcontroller or your existing USB to TTL Serial interfaces?

    • When I saw it had a USB port, I thought: “Must Buy”. Then I see it has some strange driver. Well, often these devices that are not badged “USB” use an FTDI chip or one of the other USB-to-serial converters, and then squat on some random VID/PID so that they don’t have to pay the USB consortium to use the logo.

      So… I download the .rar file. And….. I find a Windows self-extracting .exe. So far in 2015, I have not had to boot Windows, and this isn’t enough to motivate me. Maybe someone that buys one of these units can look at how it enumerates itself on the USB bus, and maybe try a CDCACM driver on it by associating the VID/PID. Or maybe some Windows user can poke around the same way.

      In any case, the temperature probe is nice in a meter in this price range. I had to pay out for a pretty spiffy Fluke in order to get a temperature probe.

      Wake me when the USB connectivity works on Linux or a Mac. I’d buy it instantly if I could interface data logging scripts to it.

  • The google machine gave the following link as the first result when searching for “Victor 70C”: link Note the very stylish color scheme on the Chinese version…

  • 232? Really?

  • If you want to use windows, here is a vbscript to get the data from the unit: (baud rate is 2400, and com port is whatever it is on your machine, maybe COM3, who knows.. check device manager and change that part of the script..) Also for the drivers, you can get them from here for Windows 7 64 bit (the CD included doesnt have the win7 64 support): https://www.silabs.com/Support%20Documents/Software/CP210x_VCP_Windows.zip

    Save it as “ser.vbs”


    ForReading=1

    Set fso = CreateObject(“Scripting.FileSystemObject”)

    Set comObj = fso.OpenTextFile(“COM5:2400,N,8,1”, ForReading)

    if not comObj.AtEndOfStream then

    Wscript.Echo comObj.ReadLine

    end if

    comObj.Close


    Then execute that from windows command line like this:

    cscript /nologo ser.vbs

    You’ll get values like: -0271 41

    The “-0271 41” result implies: -027.1 mV. The 41 refers to the digits shown and where the decimal place goes – 4 digits and the 1 it looks like refers to mV. If the 1 is not shown, then it means volts.

    For example:

    “+0151 1”, means 0.151 volts

    “+0151 2”, means 01.51 volts

    “+0151 4”, means 015.1 volts

    “+0151 0”, means 0151 volts

    Explanation: 0 (no decimal), 1 (3 decimals), 2 (2 decimals), and 4 (1 decimal).

    • I noticed also that if you can’t get it to work with the vbscript from windows 7 when you first connect (it just hangs), then run this command. (assuming COM8)

      powershell “$port=new-Object System.IO.Ports.SerialPort COM8,2400,None,8,one; $port.Open();$port.Close();”

      It will connect to COM8 and then disconnect. For some reason that clears up the com port and is open and ready for talking to the vbscript.

  • Have the Mac users succeeded using this Multimeter? Member #686974, have you gotten any “sensible data out of it” yet?

    • Here is a python script to use it on mac osx and run from command line:

      Name it “ser.py”


      import serial

      ser=serial.Serial(‘/dev/tty.SLAB_USBtoUART’, 2400, timeout=1)

      print ser.readline()


      You’ll need to install pip and pyserial most likely:

      sudo easy_install pip

      sudo pip install pyserial

      Then run:

      python ser.py

      You’ll get data like this:

      +0000 4?

      See my other answer above about the explanation of the digits.

  • On my mac it showed up as a cp2102 and if I install the usb serial driver from Silabs if shows up as a serial port is this a new version of the device? I was expecting a HID device. I will let you know if I can get sensible data out of it.

  • If it is not OS agnostic, the so-called “USB” port is useless to me. E-mail me when it is a “real” USB port. Otherwise I think it would be a valuable instrument.

  • Is there a MAC driver available yet?

  • could anyone confirm if this information and linux solution for the victor70c also applies to this meter?

    https://github.com/mvneves/victor70c http://sigrok.org/wiki/Victor_protocol

    thanks

  • I’d also like to know: Are the AC measurements RMS? and Is the USB electrically isolated? If not, you could run into problems quickly measuring circuits connected to an AC line.

    -Brad

  • Could someone verify the DC and AC current ranges, the above is not quite the same as the USER MANUAL, thank you

  • What is the resolution? Reading the manual, I get the impression that this is 3 ¾ digits. Is that correct?

Customer Reviews

4 out of 5

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A great addition to my bench

After 30 years in my career as an Electronics CET, I have twisted many Knobs, POT’s and function switches sometimes ending up in the wrong range, wrong measurement function, flopping my DMM on it’s side or collapsing it. The push button and auto range is a welcome relief. The RS232 commo is outstanding for logging data and also setting up a trouble shooting routine for equipment that is serviced continuously. This routine may be used by laymen in order to relieve the work load of the Supervising Technician. You can find great innovations, education and great products at Sparkfun! Thanks Guys


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