USB-4718 8-ch Thermocouple Input USB Module with 8-ch Isolated Digital Input Features
Supports USB 2.0
Supports voltage, current, and thermocouple inputs
Bus-powered
8 thermocouple input channels
2,500 VDC isolation
Supports 4 ~ 20 mA current input
Wiring 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
USB-4718 8-ch Thermocouple Input USB Module with 8-ch Isolated Digital Input Specifications
| General |
| Model | USB-4718 |
| 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 |
| Watchdog Timer | 1.6 sec. (system) |
| Operating Temperature | 0 ~ 60° C (32 ~ 140° F) (refer to IEC 68-2-1, 2) |
| Storage Temperature | -20 ~ 70° C (-4 ~ 158° F) |
| Storage Humidity | 5 ~ 95% RH non-condensing (refer to IEC 68-2-3) |
| 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 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 Type | s Thermocouple, mV, V, mA |
| Sampling Rate | 10 S/s (total) |
| Span Drift | ±25 ppm/° C |
| T/C Type and Temperature Range | s 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: 2 V max. |
|   | Logic 1: 5 V min. (30 V max.) |
| Isolation Protection | 2,500 VDC |
| Opto-Isolator Response | 25 µs |
| Isolated Digital Output |
| 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 |
External links for USB-4718
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Ordering information for USB-4718 8-ch Thermocouple Input USB Module with 8-ch Isolated Digital Input
| Product code | Product options |
| USB-4718 | 8-ch Thermocouple Input USB Module with 8-ch Isolated Digital Input |