OMEGA OM-USB-TEMP-AI 8-Channel Temperature/Voltage Input USB Data Acquisition Modules (Thermocouple, RTD, Thermistor, Diode, Digital, Temperature: 4 DIFF, Voltage: 4 DIFF or Single-ended, Digital: 8, Counter: 1, Screw Terminal)

CMRR: Thermocouple inputs, 100 dB min; Voltage mode, 83 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, RTD, Thermistor, Diode, 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: Dual 24-bit sigma delta A/D converters

Data Interface: Ethernet, USB 1.1, USB 2.0

Digital Output: <100 mA typical

Supply Voltage: 5 Vdc

Analog I/O Note: Analog Input Note: A/D Converter;OM-USB-TEMP-AI: Dual 24-bit sigma-delta A/D converters ;Input Isolation: 500 Vdc minimum between field wiring and USB interface;Number of Channels;OM-USB-TEMP-AI: 4 differential temperature inputs and 4 differential or single-ended voltage inputs;Thermocouple Input: Software programmable for type J, K, T, E, R, S, B, N;Pt100 RTD Input: 2, 3 or 4-wire DIN 43760, a = 0.00385, SAMA, a = 0.003911, ITS-90/IEC751, a = 0.0038505;Thermistor Input: 2, 3 or 4-wire standard 2252 through 30,000 Ω;Semiconductor Sensor: TMP36 or equivalent;Maximum Input Voltage;Temperature 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: Temperature 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 maximum (with open thermocouple detection enabled), 30 nA maximum (with open thermocouple detection disabled): voltage inputs; ±1.5 nA typ, ±25 nA max;Maximum Working ;Voltage (OM-USB-TEMP-AI Voltage Inputs): ±10.25V max (input signal + common mode);Common Mode Rejection Ratio: Temperature inputs, 100 dB minimum; voltage inputs, 83 dB minimum;Warm-Up Time: 30 minutes maximum ;Open Thermocouple Detection: Automatically enabled when a channel is configured for a thermocouple sensor;CJC Sensor Accuracy: ±0.25°C typical, ±0.5°C max (15 to 35°C); -1.0 to 0.75°C max (0 to 70°C)

Impedance Input: Thermocouple inputs; 5 GΩ (power on), 1 MΩ (power off): voltage inputs; 10 GΩ (power on), 2.49 kΩ (power off)

Input Type Note: Thermocouple: J, K, T, E, R, S, B, N, RTD: pt100, 2, 3 or 4-wire DIN 43760, a = 0.00385, SAMA, a = 0.003911, ITS-90/IEC751, a = 0.0038505, Thermistor: 2, 3 or 4-wire standard 2252 through 30,000 Ω, Semiconductor Sensor: TMP36 or equivalent

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;Pulse Width: Counter: High Pulse Width: 500 ns minimum, Low Pulse Width: 500 ns minimum;Schmitt Trigger Hysteresis: Counter: 20 mV to 100 mV

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): 4.9 V minimumto 5.1 V maximum User 5V Output Current (bus powered and connected to self-powered hub): 5 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: 47 kΩ

Data Interface Note: Configuration Method: TracerDAQ Software;Supported Operating System: Microsoft Windows® VISTA/7/8/10 (32-bit and 64-bit)

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: Temperature: 4 DIFF, Voltage: 4 DIFF or Single-ended, Digital: 8, Counter: 1

Number of Channels, Output: Digital: 8

Operating Temperature, Max: 50 °C

Operating Temperature, Min: 0 °C

Datasheet