[USB-050V] 2 Channel USB Analog Voltage Monitor
Under Development
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Measurement data from 2 analog channels (±10V)
can be acquired via USB.
The USB interface is independently isolated from each channel.
Overview
USB-050V is a voltage monitor capable of measuring two channels of analog voltage (±10 V) via USB. The USB interface and each channel are independently isolated. An A/D converter is provided for each channel, enabling simultaneous measurement of two channels.
Power is supplied from the computer via the USB connection. When using a USB hub or similar device for branching, ensure that a stable power supply is provided to prevent voltage drops. If the voltage is insufficient, stable measurement may not be possible.
By using the included application software, USB-050V Voltage Monitor, measurement results, scaling values, and chart displays can be viewed on a computer.
In addition, by using the dedicated control commands, analog voltage (±10 V) measurements can also be performed from a custom application.
* Second and subsequent images are CG models
Features
- Measurement data from 2 analog channels (±10 V) can be acquired via USB.
- Measurement Range: ±10 V
- Measurement Accuracy: ≤ ±0.05% FS
- USB side and each channel are electrically isolated (2500 VDC)
- Enables voltage monitoring, scaling, and chart visualization via the supplied software.
- Enables measurement of analog voltage (±10 V) from user applications using dedicated control commands.
- Controllable from embedded Linux devices
It operates as a device of the standard CDC-ACM class.
For Linux distributions with embedded CDC-ACM device drivers, you can use them without installing the drivers.
We do not support the use of Linux itself. - Easy control via virtual COM port with USB connection to a PC
- No external power supply is required
USB-050V is powered through a USB port (Bus-powered) - ESD and surge protection
- Pluggable the screw terminal
- Housing material: Plastic
- DIN rail, magnet, and screw mountable (Attachment is required)
- Includes a USB cable (1.8 m)
- Free from the 10 RoHS-restricted substances.
- MADE IN JAPAN
Specification
| Item | Description | Remarks |
|---|---|---|
| Model | USB-050V | |
| Input Power | 5 VDC Supplied via USB cable |
No external power supply required |
| Current Consumption | 450 mA max. | |
| HOST Interface | USB 2.0 compliant (Full-Speed supported) USB-B connector |
USB 1.1 compatible ESD protection |
| USB connector | Standard Type B Female | |
| Voltage Input Connector | Detachable terminal block 2-pin / 5 mm pitch × 2 |
Molex Model: 39520-0002 |
| Number of Channels | 2 | |
| Measuring Range | ±10 V | |
| Resolution | 24-bit A/D Converter (ADC) | |
| Measurement Accuracy | ≤ ±0.05% FS (−20 to 50°C) ≤ ±0.03% FS (0 to 40°C) |
|
| Isolation Method | Independent bus isolation | |
| Isolation Protection | 2500 VDC | Designed value |
| Built-in LSI | General-purpose microcontroller 4-20 mA ADC |
|
| LED | PWR: Power LED | |
| Control Method | Communication control via virtual COM port | |
| Operating Ambient Temperature | -20 to 50°C (-4 to 122°F) | No condensation permitted |
| Operating Ambient Humidity | 30 to 85% RH | No condensation permitted |
| Storage Ambient Temperature | -20 to 60°C (-4 to 140°F) | No condensation permitted |
| Storage Ambient Humidity | 30 to 85% RH | No condensation permitted |
| Weight | Approx. 90 g | Only main body |
| Dimensions | 67 x 67 x 28 mm (2.638" x 2.638" x 1.102") |
Without projections |
* There is a case to be changed to the parts of the compatibility.
* Power saving function (suspend, standby, sleep and others) is not supported
Application
This application runs on Windows and supports Windows 11 and Windows 10. By sending control commands to the device via USB, the application can output current from the device.
The application provides the following main functions:
- Display of measured values (voltage) and scaled values
- Real-time chart display
- Measurement log display
- Scaling configuration
- Sampling and logging interval configuration
- CSV file generation and export
and more

USB-050 Voltage Monitor download page.
Voltage Input connector (PIN ASSIGNMENT)
| Symbol | Description |
|---|---|
| − | Voltage Input (−) |
| + | Voltage Input (+) |

*Illustration showing the detachable terminal block removed.
Package Contents
- USB-050V
- USB cable 1.8 m
Documentation
Price and Optional Accessories
| Description | MODEL | Image | List Price (JPY) | Stock Status |
|---|---|---|---|---|
| 2 Channel USB Analog Voltage Monitor |
USB-050V | ![]() |
||
| Attachment with clamping screw |
PEN-003 | ![]() |
||
| Attachment for 35mm DIN rail |
PEN-003-DIN | ![]() |
||
| Attachment with neodymium magnet |
PEN-003-MG | ![]() |


User's manual, Outline Drawing, etc




