OMEGA OMB-DAQ-2408 USB Data Acquisition Modules for Temperature and Voltage (Thermocouple, Voltage, Analog: 16 SE/8 DIFF, Digital: 8, Counter: 2, Screw Terminal)

CMRR: Thermocouple Mode (fIN = 60 Hz): 110 dB, Voltage Mode (fIN = 60 Hz, All Input Ranges): 90 dB

Width: 89 mm

Height: 36 mm

Length: 127 mm

Memory: EEPROM: 4096 bytes

Weight: 160 g

Bandwidth: 1 MHz

Isolation: 500 Vdc Minimum between field Wiring and USB Interface

Slew Rate: 1.0 V/μs

Input Type: Thermocouple, Voltage

Wire Gauge: 30 to 16 AWG

Warm Up Time: 45 min

Digital Input: Digital: Low = 0 Vdc

Output Signal: Digital

Sampling Rate: 1 kHz (1,000 updates/second)

A/D Conversion: ADS1256, 24-bit Sigma Delta

Data Interface: Ethernet, USB 1.1, USB 2.0

Digital Output: 5 V ,AOUTx pins, ±5.0 mA maximum

LED Indicators: Supply Status LED

Supply Current: 275 mA

Supply Voltage: 5 Vdc

Analog I/O Note: Analog Input Note: ANALOG INPUT;A/D Converter Type: ADS1256, 24-bit Sigma Delta;A/D Data Rates: 3750 S/s, 2000 S/s, 1000 S/s, 500 S/s, 100 S/s, 60 S/s, 50 S/s, 25 S/s, 10 S/s, 5 S/s, 2.5 S/s;Throughput (Software-Selectable for Single Channel and Multiple Channels); Single Channel: 2.5 to 1102.94 S/s; Multiple Channels: 0.16 to 1102.94 Hz;Number of Channels: Up to 16 channels individually software-selectable as single ended (SE) or differential (DIFF); thermocouples require differential mode; for each channel configured as differential, you lose one single-ended channel;Input Isolation: 500 Vdc min between field wiring and USB interface;Channel Configurations: Temperature sensor input,;software-selectable to match sensor type; voltage input;Input Voltage Range; Thermocouple Mode: ±0.078125V; Voltage Mode (Software-Selectable); ±10V, ±5V, ±2.5V, ±1.25V, ±0.625V,; ±0.3125V, ±0.15625V, ±0.078125V;Absolute Maximum Input Voltage; CxH-CxL Relative to GND: ±22V max (power on), ±10V max (power off);Input Impedance: 10 MΩ (power on), 390Ω (power off);Input Leakage Current: ±20 nA;Input Voltage: >±22V (power on/off): ±1µ A max;Input Capacitance: 590 pf;Maximum Working Voltage (Signal + Common Mode); Voltage Mode: ±10.25V max;Common Mode Rejection Ratio; Thermocouple Mode (fIN = 60 Hz): 110 dB; Voltage Mode (fIN = 60 Hz, All Input Ranges): 90 dB;ADC Resolution: 24-bits;Crosstalk: Adjacent channels, 100 dB;Input Coupling: DC;Channel Gain Queue: Up to 64 elements, software-selectable channel and range;Warm-Up Time: 45 minutes min;Open Thermocouple Detect: Software-selectable for each channel;CJC Sensor Accuracy; 15 to 35°C: ±0.5°C typ; 0 to 55°C: ±1.0°C max

Impedance Input: 10 MΩ (power on), 390 Ω (power off)

Leakage Current: ±20 nA

Microcontroller: One high-performance 8-bit RISC microcontroller with USB interface (non-isolated); one high‑performance 16-bit RISC microcontroller for measurements (isolated)

Digital I/O Note: DIGITAL INPUT Number of I/O: 8 channels Configuration: Each DIO bit can be independently read from (DIN) or written to (DOUT). DIN bits can be read at any time whether the DOUT is active or tri-stated. Input Voltage Range: 0 to 15V Input Type: CMOS (Schmitt trigger) Input Characteristics: 47 kΩ pull-up/pull-down resistor, 28 Ω series resistor Maximum Input Voltage Range: 0 to 20V max (power on/off, relative to DGND) Pull-Up/Pull-Down Configuration: All pins pulled up to 5V through individual 47 kΩ resistors (the J6 shorting block default position is pins 1 and 2) Pull-down capability is available by placing the J6 shorting block across pins 2 and 3 Transfer Rate (Software Paced): 500 port reads or single bit reads per second typ Input High Voltage: 1.3 to 2.2V Input Low Voltage: 1.5 to 0.6V Schmitt Trigger Hysteresis: 0.4V to 1.2 Output Characteristics: 47 kΩ pull-up, open drain (DMOS transistor) internally connected to DGND Pull-Up Configuration: All pins pulled up to 5V through individual 47 k? resistors (the J6 shorting block default position is pins 1 and 2). Transfer Rate (Software Paced) Digital Output: 500 port writes or single bit writes per second typ Output Voltage Range: 0 to 5V (no external pull up resistor, internal 47 Ωk pull-up resistors connected to 5V by default); 0 to 15V max Drain to Source Breakdown Voltage: 50V min, Off State Leakage Current: 1.0 µA Sink Current Capability: 150 mA max (continuous) per output pin 150 mA max (continuous) for all eight channels DMOS Transistor On-Resistance (Drain to Source): 4 Ω "Output Characteristics: 47 kΩ pull-up, open drain (DMOS transistor) internally connected to DGND Pull-Up Configuration: All pins pulled up to 5V through individual 47 k? resistors (the J6 shorting block default position is pins 1 and 2). Transfer Rate (Software Paced) Digital Output: 500 port writes or single bit writes per second typ Output Voltage Range: 0 to 5V (no external pull up resistor, internal 47 Ωk pull-up resistors connected to 5V by default); 0 to 15V max Drain to Source Breakdown Voltage: 50V min, Off State Leakage Current: 1.0 µA Sink Current Capability: 150 mA max (continuous) per output pin 150 mA max (continuous) for all eight channels DMOS Transistor On-Resistance (Drain to Source): 4 Ω "Output Characteristics: 47 kΩ pull-up, open drain (DMOS transistor) internally connected to DGND Pull-Up Configuration: All pins pulled up to 5V through individual 47 k? resistors (the J6 shorting block default position is pins 1 and 2). Transfer Rate (Software Paced) Digital Output: 500 port writes or single bit writes per second typ Output Voltage Range: 0 to 5V (no external pull up resistor, internal 47 Ωk pull-up resistors connected to 5V by default); 0 to 15V max Drain to Source Breakdown Voltage: 50V min, Off State Leakage Current: 1.0 µA Sink Current Capability: 150 mA max (continuous) per output pin 150 mA max (continuous) for all eight channels DMOS Transistor On-Resistance (Drain to Source): 4 Ω ;Cross talk: 100 dB;Transfer Rate: Digital: 500 port reads or single bit reads per second typ, Counter: System dependent, 500 reads or writes per second;Schmitt Trigger Hysteresis: 0.4V to 1.2V;Sink Current: 150 mA

Pull-up Resistor: 47 kΩ

USB Cable Length: 3 m

Breakdown Voltage: Drain to Source: 50 V

Electrical Output: 0 to 5 Vdc

Input Capacitance: Analog: 590 pf, Counter: 25 pf

Relative Humidity: 0 to 90% RH non-condensing

Supply Power Note: Quiescent current, 275 mA (includes up to 10 mA for the status LED; does not include any potential loading of the digital I/O bits, 5V user terminal or the AOUTx outputs). 5V User Output Voltage Range: Available at terminal block pin 40, 4.75 to 5.25V 5V User Output Current: Available at terminal block pin 40, 10 mA maximum, Isolation: Measurement system to PC, 500 Vdc minimum

Input Voltage Note: Absolute Maximum Input Voltage: Analog: CxH-CxL Relative to GND - ±22V max (Power On), ±10V maximum (Power Off), Digital: 0 to 20V maximum (Power On/Off, relative to DGND), Counter: CTR0, CTR1 relative to GND and DGND, ±20V maximum (Power On/Off)

Pull-down Resistor: 47 kΩ

Sampling Rate Note: The maximum throughput of an OMB-DAQ-2408 module is 1.1 kS/s aggregate. The OMB-DAQ-2408 provides the ability to set conversion rates on a per-channel basis. This feature gives the user flexibility and control over noise averaging for each channel. Analog Input Throughput (Software-Selectable for Single Channel and Multiple Channels): Single Channel:2.5 to 1102.94 S/s, Multiple Channels: 0.16 to 1102.94 Hz Analog Output Throughput: Single-Channel: 1000 S/s maximum, system-dependent, Multi-Channel: 1000 S/s /#ch maximum, system-dependent

Data Interface Note: Configuration Method: TracerDAQ Software;Output Configuration: Digital: Each DIO bit can be independently read from (DIN) or written to (DOUT). DIN bits can be read at any time whether the DOUT is active or tri-stated.;Supported Operating System: Microsoft Windows® VISTA/7/8/10 (32-bit and 64-bit)

Input Configuration: Connected Software

Output Settling Time: 10V step, 75 μs

Electrical Connection: Screw Terminal

Configuration Parameters: Alarm Functionality, Pull-Up/Down Configuration, Thermocouple Type Selection, User-Configurable Input/Output

Storage Temperature, Max: 85 °C

Storage Temperature, Min: -40 °C

Number of Channels, Input: Analog: 16 SE/8 DIFF, Digital: 8, Counter: 2

Number of Channels, Output: Digital: 8

Operating Temperature, Max: 50 °C

Operating Temperature, Min: 0 °C