OMEGA OM-USB-TC 8-Channel Thermocouple/Voltage Input USB Data Acquisition Modules (Thermocouple, Digital, Thermocouple: 8 DIFF, Digital: 8, Screw Terminal)

CMRR: Thermocouple inputs, 100 dB min

Width: 89 mm

Height: 36 mm

Length: 127 mm

Weight: 182 g

Accuracy: ± 0.25 °C

Isolation: Power Isolation: 500 Vdc minimum measurement system to PC, Input Isolation: 500 Vdc min between field wiring and USB interface

Input Type: Thermocouple, Digital

Wire Gauge: 30 to 16 AWG

Warm Up Time: 30 min

Digital Input: Digital: Low = –0.5 to 0.8 Vdc

Output Signal: Digital

Sampling Rate: 2 Hz (2 updates/second)

A/D Conversion: Four dual 24-bit sigma delta A/D converters

Data Interface: USB 1.1, USB 2.0

Supply Voltage: 5 Vdc

Analog I/O Note: Analog Input Note: A/D Converter;OM-USB-TC and OM-USB-5201: Four dual 24-bit sigma delta A/D converters ;Input Isolation: 500 Vdc min between field wiring and USB interface;Number of Channels;OM-USB-TC and OM-USB-5201: 8 differential thermocouple inputs ;Maximum Input Voltage: ;Thermocouple inputs; ±25V ;(power on), ±40V (power off): voltage inputs; ±25V (power on), ±15V (power off);Throughput Rate: 2 samples/sec max for all active channels;Input Impedance:Thermocouple inputs; 5 GΩ (power on), 1 MΩ (power off): voltage inputs; 10 GΩ (power on), 2.49 kΩ (power off);Input Leakage Current: Thermocouples inputs; 105 nA max (with open thermocouple detection enabled), 30 nA max (with open thermocouple detection disabled): voltage inputs; ±1.5 nA typ, ±25 nA max

Impedance Input: Thermocouple inputs; 5 GΩ (power on), 1 MΩ (power off)

Input Type Note: Thermocouple: J, K, T, E, R, S, B, N

Leakage Current: 105 nA

Digital I/O Note: DIGITAL I/O Number of Digital I/O Channels: 8 Type: CMOS Configuration: Each DIO bit can be independently configured for input or output; power on reset is input mode Pull-Up/Pull-Down Configuration:All pins pulled up to 5V via 47 kΩresistors (default). Pull-down to ground (GND) also availableDigital I/O Transfer Rate (Software Paced):Digital Input: 50 port reads or single bit reads per second (typical) Digital Output: 100 port writes or single bit writes per second (typical) Input High Voltage: 2.0V min, 5.5V absolute max Input Low Voltage: 0.8V min, -0.5V absolute min Output High Voltage: 0.7V max (IOL = 2.5 mA) Output Low Voltage: 3.8V min (IOH = -2.5 mA);Transfer Rate: Digital: Input: 50 port reads or single bit reads per second (typical), Output: 100 port writes or single bit writes per second (typical) Counter Read/Write Rates (Software Paced, System Dependent): 33 to 1000 read/writes per second

Pull-up Resistor: 47 kΩ

USB Cable Length: 3 m

Relative Humidity: 0 to 90% RH non-condensing

Supply Power Note: Power Supply Voltage (Supplied by USB Port): 4.75V min to 5.25V maximum, Power Supply Current (Supplied by USB Port): <100 mA typical (USB enumeration); 270 mA typical for continuous input with all inputs configured for disabled mode (500 mA for OM-USB-5201) User 5V Output Voltage Range (connected to self-powered hub): 4.75V min to 5.25V maximum User 5V Output Current (bus powered and connected to self-powered hub);10 mA maximum

Input Voltage Note: Absolute Maximum Input Voltage: Thermocouple Inputs; ±25V (Power On), ±40V (Power Off): Voltage Inputs; ±25V (Power On), ±15V (Power Off)

Pull-down Resistor: GND

Data Interface Note: Configuration Method: TracerDAQ Software

Input Configuration: Connected Software

Electrical Connection: Screw Terminal

Frequency Input Range: 1 MHz

Configuration Parameters: Pull-Up/Down Configuration, User-Configurable Input/Output

Storage Temperature, Max: 85 °C

Storage Temperature, Min: -40 °C

Number of Channels, Input: Thermocouple: 8 DIFF, Digital: 8

Number of Channels, Output: Digital: 8

Operating Temperature, Max: 50 °C

Operating Temperature, Min: 0 °C

Datasheet