USB-2001-TC
Single-Channel Thermocouple Measurement DeviceFeatures• One thermocouple input• 20-bit resolution• 4 S/s sample rate
• Integrated cold junction
compensation (CJC) sensor• Open-thermocouple detection(OTD) feature• Supports J, K, R, S, T, N, E, andB type thermocouples• Accepts standard mini-plug• Small form-factor• Bus powered

Supported Operating Systems• Windows® 11/10/8/7/Vista®/

The USB-2001-TC provides reliable temperature measurement at an affordable priceXP, 32/64-bitOverview• Linux®

The USB-2001-TC is a single-channel, 20-bit, thermocouple input DAQ device
that measures temperatures in the ranges defined by NIST J, K, R, S, T, N, E, andB thermocouple types. It features a 4 S/s sample rate, integrated cold junction
compensation, and open thermocouple detection.
The USB-2001-TC has a small form-factor, and is designed with a captive USB cableattached to one end, and a socket on the other end for receiving industry-standard
thermocouple miniature connectors. The USB-2001-TC gets power from the host
PC via the USB cable, and requires no external supply.
The USB-2001-TC provides an ideal solution for embedded applications that requirereliable temperature measurements at an affordable price point.

Thermocouple Input
The USB-2001-TC is a USB device thattakes measurements from type J, K, R, S,T, N, E, and B thermocouples.
The thermocouple type is software programmable and stored on the device. A
20-bit ADC processes the data conversions.
Thermocouple input ranges are±73.125 mV (calibrated) and ±146.25 mV,(not calibrated). The ±146.25 mV range
is used for open thermocouple detection.

Thermocouple Connectors
Users can quickly connect a thermocouple
to the USB-2001-TC with a standard miniature connector.
Thermocouple miniconnectors are available for purchase from Measurement
Computing.

Open-Thermocouple
Detection
The USB-2001-TC is equipped with openthermocouple detection.
With OTD, any open-circuit conditionat the thermocouple sensor is detectedby the software. An open channel isdetected by driving the input voltage
to a positive value outside the range ofthe thermocouple output. The software
recognizes this as an invalid reading andreturns the value “OTD”.

Thermocouple miniconnectors

The device has an integrated cold junction
compensation sensor.

Thermocouple leads with miniconnector

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USB-2001-TC
Software
Software Support
The USB-2001-TC is supported by the software in the table below.
Ready-to-Run Applications

DAQami™

Data acquisition companion software with drag-and-drop interface that is used to acquire,view, and log data, and generate signals. DAQami can be configured to log analog, digital, andcounter channels, and to view that data in real-time or post-acquisition on user-configurable
displays. Logged data can be exported for use in Excel® or MATLAB®. Windows OS
DAQami is included with the free MCC DAQ Software bundle.

InstaCal™

TracerDAQ™ andTracerDAQ Pro

An interactive installation, configuration, and test utility for MCC hardware. Windows OS
InstaCal is included with the free MCC DAQ Software bundle.
Virtual strip chart, oscilloscope, function generator, and rate generator applications used togenerate, acquire, analyze, display, and export data. Supported features may vary by hardware.
The Pro version provides enhanced features. Windows OS
TracerDAQ is included with the free MCC DAQ Software bundle.
TracerDAQ Pro is available as a purchased software download.

General-Purpose Programming Support
Universal Library™
(UL) for Windows

Library for developing applications in C, C++, VB, C# .Net, VB .Net, and Python on Windows.
The UL for Windows is included with the free MCC DAQ Software bundle.
The UL Python API for Windows is available on GitHub (github.com/mccdaq/mcculw).

Library for developing applications in C, C++, and Python on Linux.
UL for Linux®

UL for Linux is available on GitHub (github.com/mccdaq/uldaq).
Open-source, third-party Linux drivers are also available for supported MCC devices.

Application-Specific Programming Support
ULx forNI LabVIEW™

DASYLab®

Measurement Computing

A comprehensive library of VIs and example programs for NI LabVIEW that is used to develop
custom applications that interact with most MCC devices. Windows OS
ULx for NI LabVIEW is included with the free MCC DAQ Software bundle.
Icon-based data acquisition, graphics, control, and analysis software that allows users to create
complex applications in minimal time without text-based programming. Windows OS
DASYLab is available as a purchased software download. An evaluation version is available for28 days.

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USB-2001-TC
Specifications
USB-2001-TC Block Diagram
USB connector
(PC)

30 V
Isolation
BarrierFull-speed
USB 2.0

TC
input

+-

Low pass
filter20-bitADC

I/O
Isolator

SPI

USB 2.0
Microcontroller

Temperature
sensor / CJC

LEDSpecifications

Compatible thermocouples
Thermocouple
J: –210 °C to 1200 °C
K: –270 °C to 1372 °C
R: –50 °C to 1768 °C
S: –50 °C to 1768 °C
T: –270 °C to 400 °C
N: –270 °C to 1300 °C
E: –270 °C to 900 °C
B: 0 °C to 1820 °C

All specifications are subject to change without notice.
Typical for 25 °C unless otherwise specified.

Analog input

Number of channels: One
ADC resolution: 20 bits
Input ranges: ±73.125 mV, calibrated, ±146.25 mV, not calibrated. Used for open
thermocouple detection.
Common-mode range
Channel-to-USB ground: ±30 V
Common-mode rejection ratio (0 to 60 Hz)
Channel-to-USB ground: >145 dB
Noise rejection
50/60 Hz: >80 dB
Temperature measurement ranges: Proper function over the temperature ranges
defined by NIST (type J, K, R, S, T, N, E, and B). Type E maximum is 900 ºC.
Conversion time: 250 ms
Input bandwidth–3 dB: 1 Hz
Differential input impedance: 20 MΩ between isolated 3.3 V and ground
Input noise: 2 µVpp
Open thermocouple bias voltage: 3.3 V
Cold-junction compensation sensor accuracy:
0 ºC to 65 ºC: 1.25 °C max, 0.6 °C typ
Cold-junction compensation sensor resolution: 0.0625 °C typ
Overvoltage protection: 30 V max between TC+ and TC–Temperature accuracy

Refer to the USB-2001-TC User’s Guide for an accuracy error chart for each thermocouple type.

LED indicator

LED status:
Steady green: The device is powered and ready for operation.
Blinking green: The device is powered, but not yet enumerated by the USB.
Off: The device is not powered or is in USB suspend.

PowerCurrent consumption from USB: 150 mA maximum, 100 mA typicalSuspend current: 2.5 mA maximum
Recommended warm-up time: 15 minutes

Safety voltages

Connect only voltages that are within these limits.
Isolation
Channel-to-earth ground: +30 V maximum
Measurement Category I is for measurements performed on circuits not directly
connected to the electrical distribution system referred to as MAINS voltage.
MAINS is a hazardous live electrical supply system that powers equipment. This
category is for measurements of voltages from specially protected secondary
circuits. Such voltage measurements include signal levels, special equipment,limited-energy parts of equipment, circuits powered by regulated low-voltage
sources, and electronics.

Channel configurations

Thermocouple type:
J, K, S, R, B, E, T, or N; one differential channel.
Channel configuration information is stored in internal FLASH Program
Memory on the microcontroller by the firmware whenever any item is modified. Modification is performed by commands issued over USB from an external
application, and the configuration is non-volatile.
The factory default configuration is undefined ‘#’.

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USB-2001-TC
Ordering
Environment

Bus interface
Mechanical

Operating temperature range: 0 °C to 55 °C
Storage temperature range: –40 °C to 85 °C
Operating humidity: 10 to 90% non-condensing
Storage humidity: 5 to 95% RH, noncondensing
Maximum altitude: 2,000 m (6,561.68 feet) (at 25 °C ambient temperature)
Pollution degree: 2The USB-2001-TC is intended for indoor use only.

Order Information

Software also Available from MCC

HardwarePart No.

Description

TracerDAQ Pro

Out-of-the-box virtual instrument suite with strip chart,
oscilloscope, function generator, and rate generator –professional version

DASYLabIcon-based data acquisition, graphics, control, and analysis
softwareUSB specification: USB 2.0 Full-Speed
Device compatibility: USB 1.1, USB 2.0
Dimensions (L × W × H): 62.56 × 38.10 × 20.32 mm
2.46 in. (L) × 1.50 in. (W) × 0.80 in. (H)Cable Length: 2 meters (6.5 feet)
Weight: Approximately 116 g (4.1 oz)

Part No.

Description

USB-2001-TC

USB-based single-channel thermocouple measurement
device.

Accessories
Part No.

Description

ACC-TC-J-001

Type J Thermocouple, 36 in. leads with STD miniconnector

CN-144-JM

Type J male thermocouple connector

CN-144-KM

Type K male thermocouple connector

CN-144-TM

Type T male thermocouple connector

745690-J001

J-type thermocouples wire, fiberglass(0 °C to 482 °C, 32 °F to 900 °F), 1 m

745690-J002

J-type thermocouples wire, fiberglass(0 °C to 482 °C, 32 °F to 900 °F), 2 m

745690-K001

K-type thermocouples wire, fiberglass(0 °C to 482 °C , 32 °F to 900 °F), 1 m

745690-K002

K-type thermocouples wire, fiberglass(0 °C to 482 °C, 32 °F to 900 °F), 2 m

745690-T001

T-type thermocouples wire, fiberglass(0 °C to 482 °C, 32 °F to 900 °F), 1 m

745690-T002

T-type thermocouples wire, fiberglass(0 °C to 482 °C, 32 °F to 900 °F), 2 m

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