Документация 02578872

Документация 02578872
USB-4718
8-channel Thermocouple Input USB Module
Features
NEW
 Supports USB 2.0
 Support voltage, current, and thermocouple inputs
 No need for the external power
 8 thermocouple input channels
 2,500 VDC isolation
 Supports 4~20 mA
 Wiring terminal on modules
 8-ch isolated DI and 8-ch isolated DO
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. USB4718 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
Isolated Digital Output
Analog Input
 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.
Resolution
16 bits
Input Impedance
20 MΩ
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
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Channels
Output Type
Isolation Protection
Output Voltage
Sink Current
Opto-isolator Response
8
Sink (NPN)
2,500 VDC
5 ~ 30 VDC, 1.1 A max/total
200 mA max./channel
25 µs
General
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Bus Type
I/O Connector
Dimensions (LxWxH):
Power Consumption
Power Input
Watchdog Timer
Operating Temperature
Storing Temperature
Storing Humidity
USB 2.0
On board screw terminal
132 x 80 x 32 mm
0.1 A @ 5 V
5 V from USB line
1.6 sec. (system)
0 ~ 60° C (32 ~ 140° F) (refer to IEC 68-2-1, 2)
-20 ~ 70° C (-4 ~ 158° F)
5 ~ 95% RH non-condensing (refer to IEC 68-2-3)
Ordering Information
 USB-4718
8-channel Thermocouple Input USB Module, CD,
manual and one 1.8m USB 2.0 cable included
Isolated Digital Input
 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
All product specifications are subject to change without notice
Last updated : 20-Jan-2006
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