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CMRR: 50 Hz Filtering at DC and fIN=50 Hz: 110 dB, 60 Hz Filtering at DC and fIN=60 Hz: 110 dB
Width: 128.6 mm
Height: 43.18 mm
Length: 482.6 mm
Memory: EEPROM: 4096 bytes
Weight: 1.73 kg
Accuracy: ± 0.2 °C (± 0.36 °F)
Bandwidth: 50 Hz Filtering: 22 Hz, 60 Hz Filtering: 26 Hz
Linearity: 60 Hz Filtering at fIN=60 Hz: 80 dB typ
Alarm Note: Each alarm controls its associated digital output line as an alarm output. When an alarm is enabled, its associated output line is driven to the appropriate state determined by the alarm options and input temperature. The alarm configurations are stored in non-volatile memory and loaded at power on. Alarm Latency: 1 second, max
Input Type: Thermocouple, Digital
Alarm modes: Active High Output, Active Low Output, Disabled Output, Error Mode, High, High/Low, Low, Manual reset
Warm Up Time: 20 min
Digital Input: Digital: Low = 0 Vdc
Output Signal: Digital
Sampling Rate: 3 Hz (3 updates/second)
A/D Conversion: Delta-Sigma
Data Interface: Ethernet, USB 1.1, USB 2.0, USB 3.0
Digital Output: Digital: 0 to 15V
LED Indicators: Power and Activity LEDs Blink
Supply Current: 330 mA
Supply Voltage: 5 Vdc
Analog I/O Note: Analog Input Note: Specifications (Typical for 25°C (77°F) unless otherwise specified);These specifications apply to both the OMB-DAQ-TC-RACK and OMB-DAQ-TC-RACK-EXP32 unless noted otherwise.;Thermocouple Input;A/D Converter Type: Delta-Sigma;A/D Resolution: 24-bit;Number of Channels: 32 (64 when OMB-DAQ-TC-RACK is connected to OMB-DAQ-TC-RACK-EXP32);Filtering Options: 50 Hz or 60 Hz noise filtering, software-selectable;Isolation Between Any Thermocouple Input Channel and Chassis Ground: 500 Vdc absolute max;Channel Configuration: Software-selectable to match thermocouple sensor type;Differential Input Voltage Range: ±78.125 mV;Absolute Maximum Input Voltage (Between any Two TCx Inputs): ±25V (power on), ±25V (power off);Differential Input Impedance; 50 Hz Filtering, Power On: 26 MΩ; 60 Hz Filtering, Power On: 20 MΩ;Input Current; Open Thermocouple Detect Disabled: 2 nA; Open Thermocouple Detect Enabled: 75 nA;Common Mode Rejection; 50 Hz Filtering at DC and fIN=50 Hz: 110 dB; 60 Hz Filtering at DC and fIN=60 Hz: 110 dB;Noise Rejection; 50 Hz Filtering at fIN=50 Hz: 80 dB typ; 60 Hz Filtering at fIN=60 Hz: 80 dB typ;Input Bandwidth; 50 Hz Filtering: 22 Hz; 60 Hz Filtering: 26 Hz;Crosstalk Between Any Two Thermocouple Inputs: -90 dB;Sample Rate: 3 Hz max (per channel); the enabled thermocouple inputs are continuously converted at the maximum A/D converter rate;Common Mode Voltage Range; TCx Channel to TCx Channel: ±1.40V; TCx Channel Relative to Chassis Ground, fIN = 60 Hz: ±3.5 Vac p-p; TCx Channel Relative to Chassis Ground: ±48 Vdc;When thermocouple sensors are connected to different common mode voltages, the channels with floating thermocouples sensors are biased to approximately the average value of the applied common mode voltages. Each of the applied common mode voltages must then be less than or equal to the average common mode voltage ±1.40 V or [CMVapplied = (CMVaverage ±1.4 V)].;Input Noise (50 or 60 Hz Filtering): 510 nV rms;Gain Error (50 or 60 Hz Filtering): 0.004% FSR;Offset Error (50 or 60 Hz Filtering): 3 µV;Measurement Sensitivity (Smallest Change in Temperature That Can Be Detected); Thermocouple Type J, K, T, E, N: 0.05°C; Thermocouple Type R, S: 0.10°C; Thermocouple Type B: 0.15°C;Warm-Up Time: 20 minutes min;Open Thermocouple Detect Response Time: 1 s;CJC Sensor Accuracy (0 to 45°C): ±0.20°C typ, ±0.40°C max;Channel Configuration;Thermocouple (J, K, T, E, R, S, B, N): 32 differential channels Channel configuration is stored on EEPROM external to the isolated microcontroller by the firmware whenever any item is modified. Modification is performed by commands issued from an external application, and the configuration is made nonvolatile through the use of the EEPROM.
Impedance Input: Differential: Power On: 26 MΩ (50 Hz Filtering), Power On: 20 MΩ (60 Hz Filtering)
Leakage Current: 0.1 μA
Microcontroller: One high-performance 32-bit RISC microcontroller
Noise Rejection: Rejection: 50 Hz Filtering at fIN=50 Hz: 80 dB typ
Digital I/O Note: Digital Input Number of Inputs: 8 channels (16 when OMB-DAQ-TC-RACK connected to OMB-DAQ-TC-RACK-EXP32) Configuration: Fixed input Input Voltage Range: 0 to 15V Input Type: CMOS (Schmitt trigger) Input Characteristics: 100 k? pull-up resistor, 28.7 kΩ series resistor Maximum Input Voltage Range: 0 to 20V max (power on/off, relative to IGND pins) Pull-Up Configuration: All pins pulled up to 5V via individual 100 k? resistors using slide switch SW5; SW5 default position are on (pulled up) Transfer Rate (Software Paced): 500 port reads per second typ Input High Voltage: 1.3V min, 2.2V max Input Low Voltage: 1.5V max, 0.6V min Schmitt Trigger Hysteresis: 0.4V min, 1.2V max "Digital Output Number of Outputs: 32 channels, shared with alarms (64 when OMB-DAQ-TC-RACK connected to OMB-DAQ-TC-RACK-EXP32) Configuration: Open drain output Output Characteristics: 100 kΩ pull-up, open drain (DMOS transistor) Pull-Up Configuration: All pins pulled up to 5V through individual 100 kΩ resistors using slide switches SW1-SW4; the default positions for SW1-SW4 are on (pulled up) Transfer Rate (Software Paced): Digital output–500 port writes per second typ Output Voltage Range: 0 to 5V: Internal 100 kΩ pull-up resistors connected to 5V by default 0 to 15V: Max (using external pull-up resistor) Ground: Pins labeled IGND are isolated from AGND and chassis ground Off State Leakage Current: 0.1 µA Sink Current Capability: 100 mA max (continuous) per output pin DMOS Transistor On-Resistance (Drain to Source): 4 O" ;Cross talk: -90 dB;Transfer Rate: Input: 500 port reads per second typ, Output: Digital output–500 port writes per second typ;Schmitt Trigger Hysteresis: 0.4V to 1.2V;Sink Current: 100 mA max (continuous) per output pin
Pull-up Resistor: 100 kΩ
USB Cable Length: 5 m
Electrical Output: 0 to 5 Vdc
Relative Humidity: 0 to 90% RH non-condensing
Supply Power Note: Supply Current: 330 mA typ, 610 mA max; 550 mA typ, 1000 mA max (with OMB-DAQ-TC-RACK-EXP32 connected), External Power Input: 5 Vdc ±5% (5 Vdc power supply provided) Voltage specification applies at barrel plug power input. The power supply provided with the device meets this specification at the rated total power supply current. If a different power supply is used, small line resistances could cause significant voltage drop between the power supply and the barrel plug input. Power Switch: Rocker type, External Power Supply (Included): 5 Vdc, 10 W, 5% regulation (model number OMB-DAQ-TC-RACK-PS), External Power Input Voltage Supervisor Limits: 4.0V > Vext > 5.75V: PWR LED = Off (power fault), 4.0V < Vext < 5.75V: PWR LED = On, Chassis Ground Connection: 6-32 screw on rear of enclosure
Input Voltage Note: Absolute Maximum Input Voltage: Analog: ±25V (Power On), ±25V (Power Off), Digital: 0 to 20V max (Power On/Off, relative to IGND pins)
Common Mode Voltage: TCx Channel to TCx Channel: ±1.40V, TCx Channel Relative to Chassis Ground, fIN = 60 Hz: ±3.5 Vac p-p, TCx Channel Relative to Chassis Ground: ±48 Vdc
Data Interface Note: Ethernet Type - 100 Base-TX, 10 Base-T; Protocol - TCP/IP (IPv4 only), UDP;Ethernet: 10/100 Mbps, auto-negotiated;Network Interface Protocols Used: TCP/IP (IPv4 only), UDP, Network Ports Used: UDP: 54211 (discovery), TCP: 54211 (commands), Network IP Configuration: DHCP + link-local, DHCP, static, link-local;Network Name: TC-32-xxxxxx, where xxxxxx are the lower 6 digits of the device MAC address, Network Name Publication: By NBNS (responds to b-node broadcasts, therefore only available on the local subnet);Network Factory Default Settings: Factory Default IP Address: 192.168.0.101, Factory Default Subnet Mask: 255.255.255.0, Factory Default Gateway: 192.168.0.1, Factory Default DHCP Setting: DHCP + link-local enabled, Network Security: Security Implementation: TCP sockets are not opened unless application sends the correct PIN code (stored in non-volatile memory, may be changed by user, default value 0000);Number of Concurrent Sessions: 1, Vulnerabilities: TCP Sequence number approximation;Factory Reset Button: When held for 3 seconds, the LEDs turn off for a short time, indicating a reset is in process. When the LEDs turn back on, reset is complete and the factory default network settings are restored;Ethernet Cable Length, Max: 100 m;Output Configuration: Digital: Open Drain Output;Supported Operating System: Windows PC
Input Configuration: Connected Software
Input Noise Voltage: 510 nVrms
Electrical Connection: USB Micro-B Female
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: 32
Number of Channels, Output: Digital: 32
Operating Temperature, Max: 45 °C
Operating Temperature, Min: 0 °C
