8 Channel Thermocouple Data Acquisition (DAQ) Module
Measurement Computing Module with Built-in Temperature Probe Accepting 8 Input Channels
SKU
USB-TC
In Stock
$435.00
- (8) 24-Bit Analog Inputs for J, K, R, S, T, N, E, and B Type Bare Wire Thermocouple Sensor Probes
- (2) Integrated Cold Junction Compensation (CJC) Sensors
- An Independent Alarm for Each Input
- (8) User-Configurable Digital I/Os Configured for Input or Output
Includes USB Cable. DAQami Software and Measurement Computing DAQ Software Suite (TracerDAQ, InstaCal, Universal Libraries for Windows, Android and NI LabVIEW) Available as a Download
Overview of the Measurement Computing USB-TC DAQ Device
The Measurement Computing USB-TC is an 8-channel thermocouple USB data acquisition (DAQ) device that features programmable independent alarms for each channel and a sample rate of up to 2 samples per second. It can accept any bare wire ended J, K, R, S, T, N, E, or B type thermocouple and has two integrated cold junction compensation (CJC) sensors. Data is sent to your PC via a USB connection and analyzed using the free Measurement Computing DAQ software suite which is available as a free download.
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Specifications
| Maximum Logging Rate/Channel | 2 Samples per second |
| A/D Converters | (4) Dual 24-bit Sigma-Delta type |
| Number of Channels | 8 Differential Channels |
| Input Isolation | 500 VDC minimum between field wiring and USB interface |
| Channel Configuration | Thermocouple sensor type |
| Differential Input Voltage Range | Thermocouple: ±0.080 Volts |
| Absolute Maximum Input Voltage | Power On: ±25 Volt Power Off: ±40 Volt |
| Input Impedance | 5 Gigohm Minimum |
| Input Leakage Current | Enabled Open Thermocouple Detect: 105 nA Maximum |
| Normal Mode Rejection Ratio | Normal Mode: 90 dB Minimum Common Mode: 100 dB Minimum |
| Resolution | 24 Bits |
| Input Coupling | DC |
| Warm-up Time | 30 Minutes Minimum |
| Open Thermocouple Detect | Automatically enabled when the channel pair is configured for thermocouple sensors. The maximum open detection time is 3 seconds. |
| CJC Sensor Accuracy | 15°C to 35°C: ±0.25°C (Typical); ±0.5°C (Maximum) 0°C to 70°C: -1.0 to +0.5°C (Maximum) |
| Digital Input/Output Type | CMOS |
| Number of Digital I/O | 8 (DIO0 to DIO7) |
| Digital I/O Configuration | Independently configured for input or output. Power on reset is input mode. |
| Digital Pull up/Pull down Configuration | All pins pulled up to +5 V via 47 K resistors (default). Pull down to ground (GND) also available. |
| Digital 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. |
| Digital Input | High Voltage: 2.0 V (Minimum); 5.5 V (absolute Maximum) Low Voltage: 0.8 V (Maximum); -0.5 V (absolute Minimum) |
| Digital Output | Low Voltage (IOL = 2.5 mA): 0.7 V (Maximum) High Voltage (IOH = -2.5mA): 3.8 V (Minimum) |
| Memory Storage Format | PC Memory |
| Power | Self-Powered USB Port |
| Power Supply Current | USB Enumeration: <100 mA Continuous Mode: 70 mA Maximum |
| USB Cable Type | A-B cable, UL type AWM 2527 or equivalent (min 24 AWG VBUS/GND, min 28 AWG D+/D-) |
| USB Cable Length | 3 meters Maximum |
| Operating Range | Temperature: 0°C to 70°C Humidity: 0 to 90% non-condensing |
| Storage Range | Temperature: -40°C to 87°C Humidity: 0 to 90% non-condensing |
| OS Compatibility | Windows 11, 10 and 7 (32 and 64-Bit) for Universal Library, LabVIEW |
| Dimensions | 127mm x 88.9mm x 35.56mm |
Customer Questions