Industrial USB I/O Modules
Features
USB-4718
8-ch Thermocouple Input USB Module
with 8-ch Isolated Digital Input
Supports USB 2.0
Supports voltage, current, and thermocouple inputs
Bus-powered
8 thermocouple input channels
2,500 V
DC
isolation
Supports 4 ~ 20 mA current input
Detachable screw terminal on modules
8-ch isolated DI and 8-ch isolated DO
Suitable for DIN-rail mounting
One lockable USB cable for secure connection included
Introduction
The USB-4700 series consists of true plug & play data acquisition devices. No more opening up your computer chassis to install boards just plug in the module, then get the data. It’s
easy and efficient. USB-4718 offers 8 thermocouple inputs with 16-bit resolution, up to 0.1% input range accuracy. Portable design makes the USB-4718 suitable for field research.
Also, the input channels can be set separately making handling multiple type of sensors with just one USB-4718 module possible.
Reliable and rugged enough for industrial applications, yet inexpensive enough for home projects, the USB-4718 is the perfect way to add measurement and control capability to any
USB capable computer. The USB-4700 series is fully plug and play and easy to use. It obtains all required power from the USB port, so no external power connection is ever required.
Specifications
Analog Input
Accuracy ±0.1% for voltage input
Bandwidth 13.1 Hz @ 50 Hz,
15.72 Hz @ 60 Hz
Channels 8 differential
Ch. Independent Conf. Yes
CMR @ 50/60 Hz 92 dB min.
Resolution 16 bits
Input Impedance 1.8 M:
lnput Range 0 ~ 15 mV, 0 ~ 50 mV, 0 ~ 100 mV, 0 ~ 500 mV,
0 ~ 1 V, 0 ~ 2.5 V, 0 ~ 20 mA, 4 ~ 20 mA
lnput Types Thermocouple, mV, V, mA
Sampling Rate 10 S/s (shared for all channels)
Note: The sampling rate for each channel is fixed due to the hardware design.
It is 10/8 = 1.25 S/s per channel no matter how many channels you use.
Span Drift ±25 ppm/°C
T/C Type and Temperature Ranges
J 0 ~ 760°C R 500 ~ 1750°C
K 0 ~ 1370°C S 500 ~ 1750°C
T -100 ~ 400°C B 500 ~ 1800°C
E 0 ~ 1000°C
TVS/ESD Protection Built-in
Zero Drift ±0.3 μV/°C
Isolated Digital Input
Channels 8
Input Voltage Logic 0: 3 V max. (manual)
Logic 1: 5 V min. (30 V max.)
Isolation Protection 2,500 V
DC
Opto-isolator Response 25 μs
Isolated Digital Output
Channels 8
Output Type Sink (NPN)
Isolation Protection 2,500 V
DC
Output Voltage 5 ~ 30 V
DC
, 1.1 A max./ total
Sink Current 200 mA max./channel
Opto-isolator Response 25 μs
General
Bus Type USB 2.0
I/O Connector Onboard screw terminal
Dimensions (Lx W x H) 132 x 80 x 32 mm (5.2" x 3.15" x 1.26")
Power Consumption 100 mA @ 5 V
Watchdog Timer 1.6 sec. (system)
Operating Temperature 0 ~ 60°C (32 ~ 140°F)
Storage Temperature -20 ~ 70°C (-4 ~ 158°F)
Storage Humidity 5 ~ 95% RH non-condensing
Ordering Information
USB-4718-AE 8-ch Thermocouple Input USB Module
Accessories
1960004544 Wallmount Bracket
1960005788 VESA Mount Bracket
RoHS
COMPLIANT
2002/95/EC
21-10
(84 pages)
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