[USB-045A] 2CH USB 4-20mA Current Monitor HuMANDATA LTD.

Overview

USB-045A is a converter capable of measuring two channels 4-20 mA current. It connects to a computer via USB, allowing measurement results to be displayed and logged. The USB interface and each channel are independently isolated. In addition, an A/D converter is provided for every two channels, enabling simultaneous measurement of two channels. Dedicated control commands are also provided, enabling 4-20 mA measurement from user applications.

* Second and subsequent images are CG models

* Image with optional accessories

Features

• 2 channel 4-20 mA measurement data acquisition via USB
• Measurement Range: 0-25 mA
• Measurement Accuracy: ≤ ±0.25% FS
• USB side and each channel are electrically isolated (2500 VDC)
• Easy control via virtual COM port with USB connection to a PC
• Enables 4-20 mA current output, auto-step, and auto-sweep operation via the included application
• Enables 4-20 mA output 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.
• No external power supply is required
  USB-045A 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-045A
Input Power	5 VDC / 350 mA max. Supplied via USB cable	No external power supply required
HOST Interface	USB 2.0 compliant (Full-Speed supported) USB-B connector	USB 1.1 compatible ESD protection
4-20 mA Connector	3-pin terminal block x 2	Phoenix Contact Model: 1759020
Measuring Range	0 to 25 mA
Number of Channels	2
Resolution	24-bit A/D Converter (ADC)
Measurement Accuracy	≤ ±0.25% FS
Sampling Period	Minimum setting unit: 10 ms	Selectable by command
Shunt Resistor	200Ω ±0.01%
Isolation Method	Independent bus isolation
Isolation Protection	2500 VDC	Designed value
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 60℃ (-4°F to 140°F)	No condensation permitted
Operating Ambient Humidity	30% to 85% RH	No condensation permitted
Storage Ambient Temperature	-20℃ to 60℃ (-4°F 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:

• Current output using 4-20 mA current set values
• Current output using scaling settings
  and more

USB-045 CV-Monitor download page.

Connector (PIN ASSIGNMENT)

Package Contents

• USB-045A
• USB cable 1.8 m

Documentation

• User's manual, Outline Drawing, etc
• 

Price and Optional Accessories

Description	MODEL	Image	List Price (JPY)	Stock Status
2 Channel USB 4-20mA Current Monitor	USB-045A
Attachment with clamping screw	PEN-003
Attachment for 35mm DIN rail	PEN-003-DIN
Attachment with neodymium magnet	PEN-003-MG
Detachable 3P Terminal Connector 1757022 (Phoenix) (Additional purchase)	TB-USB-3

Ordering

HOW TO ORDER HuMANDATA PRODUCT