Measurement-computing USB-TC Instrukcja Użytkownika Pobierz pdf (Strona 6)

Chapter 1

Introducing the USB-TC

Overview: USB-TC features

The USB-TC is a USB 2.0 full-speed, thermocouple input module that is supported under popular Microsoft

Windows

operating systems. The USB-TC is fully compatible with both USB 1.1 and USB 2.0 ports.

The USB-TC provides eight differential thermocouple input channels. Eight independent, TTL-compatible

digital I/O channels are provided to monitor TTL-level inputs, communicate with external devices, and to

generate alarms. The digital I/O channels are software programmable for input or output.

With the USB-TC, you can take measurements from type J, K, R, S, T, N, E, and B thermocouples.

The USB-TC provides two integrated cold junction compensation (CJC) sensors for thermocouple

measurements.

An open thermocouple detection feature lets you detect a broken thermocouple. An on-board microprocessor

automatically linearizes the measurement data.

The USB-TC is a standalone plug-and-play module which draws power from the USB cable. No external power

supply is required. All configurable options are software programmable.

The USB-TC is fully software calibrated.

Functional block diagram

USB-TC functions are illustrated in the block diagram shown here.

Figure 1. Functional block diagram

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Measurement-computing USB-TC Instrukcja Użytkownika Strona 6