Impulse USB-4718 - Manual

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Features
USB-4718
8-ch Thermocouple Input USB Module
with 8-ch Isolated Digital Input
ƒ Supports USB 2.0
ƒ Supports voltage, current, and thermocouple inputs
ƒ Bus-powered
ƒ 8 thermocouple input channels
ƒ 2,500 V
DC
isolation
ƒ Supports 4 ~ 20 mA current input
ƒ Detachable screw terminal on modules
ƒ 8-ch isolated DI and 8-ch isolated DO
ƒ Suitable for DIN-rail mounting
ƒ 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 the field
research. Also the input channels can be set separately make it possible handling multiple types of sensor with only one USB-4718 module.
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
ƒ Accuracy ±0.1% for voltage input
ƒ Bandwidth 13.1 Hz @ 50 Hz,
15.72 Hz @ 60 Hz
ƒ Channels 8 differential
ƒ Ch. Independent Conf. Yes
ƒ CMR @ 50/60 Hz 92 dB min.
ƒ Resolution 16 bits
ƒ Input Impedance 1.8 M Ω
ƒ 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
ƒ lnput Types Thermocouple, mV, V, mA
ƒ 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.
ƒ Span Drift ±25 ppm/°C
ƒ 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
ƒ TVS/ESD Protection Built-in
ƒ Zero Drift ±0.3 µV/°C
Isolated Digital Input
ƒ Channels 8
ƒ Input Voltage Logic 0: 2 V max.
Logic 1: 5 V min. (30 V max.)
ƒ Isolation Protection 2,500 V
DC
ƒ Opto-isolator Response 25 µs
Isolated Digital Output
ƒ Channels 8
ƒ Output Type Sink (NPN)
ƒ Isolation Protection 2,500 V
DC
ƒ Output Voltage 5 ~ 30 V
DC
, 1.1 A max./ total
ƒ Sink Current 200 mA max./channel
ƒ Opto-isolator Response 25 µs
General
ƒ Bus Type USB 2.0
ƒ I/O Connector Onboard screw terminal
ƒ Dimensions (Lx W x H) 132 x 80 x 32 mm (5.2" x 3.15" x 1.26")
ƒ Power Consumption 100 mA @ 5 V
ƒ Watchdog Timer 1.6 sec. (system)
ƒ Operating Temperature 0 ~ 60°C (32 ~ 140°F) (refer to IEC 68-2-1, 2)
ƒ Storage Temperature -20 ~ 70°C (-4 ~ 158°F)
ƒ Storage Humidity 5 ~ 95% RH non-condensing (refer to IEC 68-2-3)
Ordering Information
ƒ USB-4718-AE 8-ch Thermocouple Input USB Module
Accessories
ƒ 1960004544 Wallmount Bracket
ƒ 1960005788 VESA Mount Bracket
RoHS
COMPLIANT
2002/95/EC