Updated September 23, 2014. ©2014 ADLINK Technology, Inc. All Rights Reserved. All specications are subject to change without further notice.
4-CH 24-Bit Universal Input USB DAQ Modules
USB-2401
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
GPO0
GPI1
GPI0
NC
GND1
SC1-
SC1+
EXC1
CI1-
CI1+
AI1-
AI1+
GND0
SC0-
SC0+
EXC0
CI0-
CI0+
AI0-
AI0+
GPO1
GPI3
GPI2
DGND
GND3
SC3-
SC3+
EXC3
CI3-
CI3+
AI3-
AI3+
GND2
SC2-
SC2+
EXC2
CI2-
CI2+
AI2-
AI2+
USB-2401
Introduction
The USB-2401 is a 24-Bit, 4-channel simultaneous-sampling universal input USB DAQ modules featuring
built-in signal conditioning circuitry, providing direct measurement of commonly used sensors including
current output transducers, thermocouple, RTD, load cell, strain gauge, and others. Individual channels
can be programmed to measure different signal types.
The USB-powered USB-2401 is equipped with removable screw-down terminals for easy device con-
nectivity, and the included multi-functional stand fully supports desktop, rail, or wall mounting.
The USB-2401 is suitable for basic measurement applications requiring high resolution and accuracy,
laboratory research and material testing environments, and industrial temperature measurement. U-test,
a free ready-to-use testing program is included to enable operation or testing of all ADLINK USB DAQ
series functions with no programming requirement.
Pin Assignment
Ordering Information
■ USB-2401
4-CH 24-Bit Universal Input USB DAQ
Standard Shipped Accessories
•One pair of 20-pin removable screw
terminals
•Module stand
•2 M USB Type A to USB Mini-B
cable with lockable connector
•Rail-mount kit
Optional Accessories
■RST-20P
One pair of 20-pin removable
screw terminals
■USB-2M-L
2 M USB Type A to USB Mini-B cable
with lockable connector
Features
■ USB 2.0 High-Speed
■ USB bus powered
■ 4-CH simultaneous-sampling analog input
■ Built-in signal conditioning for high voltage/current/thermocouple/
RTD/strain gauge/load cell measurement
■ Up to 2kS/s analog input rate
■ Removable screw terminal on module
■ Lockable USB cable for secure connectivity
■ Ready-to-use testing application (U-Test) provided
■Supported Operating System
•Windows 7/8 x64/x86
■Driver and SDK
•LabVIEW, MATLAB, C/C++, Visual Basic, Visual Studio.NET
■Software Utility
•U-Test
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Updated September 23, 2014. ©2014 ADLINK Technology, Inc. All Rights Reserved. All specications are subject to change without further notice.
Voltage
Current
Thermocouple
RTD (3-wire, 4-wire)
Half-Bridge (120Ω, 350Ω)
Full-Bridge (120Ω, 350Ω)
2-Wire Resistance
Number of channels
Compatibility
Support modes
Data Transfer
I/O connector
Operating temperature
Storage temperature
Power requirements
Dimensions
Relative humidity
Mode
Function I/O
General Specifications
± 25 V, ± 12.5 V, ± 2.5 V, ± 312.5 mV
± 20 mA
K, J, N, R, S, B, T, E
Pt 100, Pt 1000
Max. 30 mV/V
Max. 30 mV/V
25 kΩ
± 25 V, ± 12.5 V, ± 2.5 V, ± 312.5 mV
± 20 mA
78.125 mV
2.5 V
78.125 mV
78.125 mV
2.5 V
4 inputs and 2 outputs
5V/TTL
Digital I/O
General timer/counter: One 32-Bit; base clock 80 MHz, external to 10 MHz
PWM: One channel, modulation frequency: 0.01 Hz to 5 MHz; duty cycle: 1%-99%
Programmed I/O, continuous (USB bulk transfer mode)
Two 20-pin removable screw terminals
0 to 55°C (32˚F to 122˚F)
-20 to 70°C (-4˚F to 158˚F)
5V @ 400 mA (USB powered)
114 (H) x 156.5 (L) x 41 mm (W) (4.5” x 6.16” x 1.63”)
(without connector and stand)
5% to 95%, non-condensing)
Note: Function I/O shares the same I/O pins. Only one of these modes can be selected.
Number of channels
Resolution
Measurement types
Maximum sampling rate
Input ranges
Input coupling
FIFO size
Data Transfer
Model Name USB-2401
Analog Input
4 differential
24-Bit
Voltage, current, thermocouple, RTD, half-bridge, full-bridge, resistance
2 kS/s
DC
4k samples
Programmed I/O, continuous (USB bulk transfer mode)
Optional Accessories
USB DAQ
Input range or supporting type Actual Range
Specifications
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