USB-4718
USB-4718
8-ch Thermocouple Input USB Module
Features
 Supports USB 2.0
 Support voltage, current, and thermocouple inputs
 Bus-powered
 8 thermocouple input channels
 2,500 VDC isolation
 Support 4 ~ 20 mA current output
 Wiring terminal on modules
 8-ch isolated DI and 8-ch isolated DO
 Suitable for DIN-rail mounting
 Lockable USB cable for rigid connection
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, or 4 ~ 20 mA inputs.
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-4718 is fully USB 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
Isolated Digital Output
 Accuracy
 Bandwidth
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±0.1% for voltage input
13.1 Hz @ 50 Hz,
15.72 Hz @ 60 Hz
Channels
Eight differential
Ch. Independent Conf. Yes
CMR @ 50/60 Hz
92 dB min.
16 bits
Resolution
20 MΩ
Input Impedance
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 samples/sec. (total)
Span Drift
±25 ppm/° C
T/C Type and Temperature Ranges
J 0 ~ 760° C
K 0 ~ 1370° C
T -100 ~ 400° C
E 0 ~ 1000° C
 TVS/ESD Protection
 Zero Drift
R
S
B
500 ~ 1750° C
500 ~ 1750° C
500 ~ 1800° C
Built-in
±3 µV/° C
Isolated Digital Input
Channels
8
Output Type
Sink (NPN)
Isolation Protection
2,500 VDC
Output Voltage
5 ~ 30 VDC, 1.1 A max/total
Sink Current
200 mA max./channel
Opto-isolator Response 25 µs
General
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Bus Type
USB 2.0
I/O Connector
Onboard screw terminal
Dimensions (Lx W x H) 132 x 80 x 32 mm
Power Consumption
100 mA @ 5 V
Power Input
5 V from USB line
1.6 sec. (system)
Watchdog Timer
Operating Temperature 0 ~ 60° C (32 ~ 140° F) (refer to IEC 68-2-1, 2)
Storing Temperature -20 ~ 70° C (-4 ~ 158° F)
5 ~ 95% RH non-condensing (refer to IEC 68-2-3)
Storing Humidity
Ordering Information
 USB-4718 8-ch Thermocouple Input USB Module, one 1.8 m USB
2.0 cable included
 Channels
 Input Voltage
8
Logic 0: 2 V max.
Logic 1: 5 V min. (30 V max.)
 Isolation Protection
2,500 VDC
 Opto-Isolator Response 25 µs
Online Download www.advantech.com/products
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