USB Thermocouple Data Acquisition

Data acquisition · iNET-600 + iNET-510

USB Thermocouple Data Acquisition

Eight thermocouples into a laptop over one USB cable. The iNET-600 module with the iNET-510 screw-terminal box gives 24-bit thermocouple readings, built-in cold junction compensation and power from the PC, with no separate supply.

iNET-600 USB data acquisition module with iNET-510 thermocouple wiring box

8 thermocouples

Per unit, each channel set to its own type. Add units for more points.

24-bit

A/D resolution with per-point averaging, plus programmable digital filters.

USB powered

Runs from the laptop’s USB port. 3 ft USB cable included.

11 TC types

J, K, T, E, R, S, B, N, C, G and D, selected in software.

What’s in the system

Three pieces, one measurement chain

Bare bead thermocouple with stripped leads

Thermocouples

Bare bead or probe, any standard type. Stripped leads go straight into the screw terminals, or keep the thermocouples you already have.

Bare bead thermocouples →
iNET-510 thermocouple wiring box with screw terminals

iNET-510 wiring box

Screw-clamp terminals with built-in cold junction compensation. Bolts directly onto the iNET-600.

iNET-600 USB sensor measurement module

iNET-600 USB module

The data acquisition engine: 16 single-ended / 8 differential inputs, USB interface and instruNet World software.

Cold junction compensation

Why thermocouples need the iNET-510

A thermocouple measures the difference between its tip and the point where its wires land on copper terminals. To report the true tip temperature, the input has to know the temperature of those terminals.

The iNET-510 has a temperature sensor built into its terminal block for exactly that. It is the only iNET wiring box that supports thermocouples; the BNC and strain-gage boxes do not.

  • Screw-clamp terminals, connect with a screwdriver
  • Bolts onto the iNET-600, no extra cabling
  • Compensation applied automatically by the software

Also available Pluggable sensor version. An iNET-510 box fitted with thermocouple connectors, so sensors with plugs connect and disconnect in seconds without a screwdriver. Ideal when sensors move between tests or the unit is shared.

Pluggable iNET-510 thermocouple box with thermocouple connectors

Pluggable-connector version of the iNET-510 thermocouple box

Setup

From box to recorded data

  1. Connect the thermocouples. Screw each lead into an iNET-510 input, observing polarity (red is negative in the ANSI color code).
  2. Plug in USB. The iNET-600 powers up from the laptop.
  3. Pick the sensor type. In instruNet World’s Quick Setup, set each channel to its thermocouple type.
  4. Record. Watch temperatures live, save to file, or stream into Excel or your own screens.

Mix sensor types

Every channel is configured independently, so one unit can read thermocouples alongside voltage, current, RTD or thermistor signals.

Measuring thermistors instead? See the DASYLab iNET-600 thermistor bundle.

Software

Record it your way

Start with the included software, then move to Excel, DASYLab or a custom setup as the job grows. Ask us about software assistance.

instruNet World (included)

Windows software that ships with the iNET-600. Set up sensors with Quick Setup, view live readings and charts, and record to file. No programming needed.

instruNet World software screen showing live thermocouple channel readings

Live data in Excel

Stream readings into a spreadsheet in real time for logging, calculations and reports the way your team already works.

DASYLab worksheets

Build graphical measurement, control and analysis worksheets, with alarms, calculations and custom displays.

DASYLab data acquisition software →

MQTT and custom solutions

Publish readings to MQTT for remote monitoring and dashboards, or let Robert Owen write a custom application around your test.

Plot of iNET-600 temperature data received over MQTT
Specifications

iNET-600 + iNET-510 at a glance

ItemSpecification
Analog inputs16 single-ended / 8 differential; 8 thermocouples per unit
Thermocouple typesJ, K, T, E, R, S, B, N, C, G, D
Other sensorsVoltage, current, RTD, thermistor, load cell, strain gage, potentiometer, resistance
Cold junction compensationInternal sensor in the iNET-510 terminal block
A/D converter24-bit with per-point averaging (≥1 ms); 16-bit without
Voltage ranges±20 mV to ±10 V, set per channel in software
Digital filteringLow/high/band-pass or band-stop; Elliptic, Chebyshev or Butterworth
Common mode rejection>110 dB (0 to 60 Hz)
Digital I/O4 lines, 0 to 3.3 V, 4 mA sink/source
PowerFrom USB, +5 Vdc, 255 mA typical
Operating environment1 to 70 °C, <90% RH non-condensing
Module size58 × 96 × 24 mm (iNET-600)
IncludediNET-600, 3 ft USB cable, instruNet World software (PC not included)
Isolated optioniNET-601: ±36 V input-bank-to-USB isolation

iNET-600 specifications per the manufacturer’s data sheet. The iNET-510 is ordered separately.

Applications

Where it’s used

HVAC & chillers

Supply, return and discharge air; chilled-water and coil temperatures.

Refrigeration

Coolers, freezers and cold-room checks with Type T thermocouples.

Thermal profiling

Eight points across a product, oven, dryer or enclosure, recorded together.

Environmental monitoring

Room, chamber and computer-room temperature logging.

Lab & R&D

Carry the unit to the bench, plug into a laptop and test.

Existing thermocouples

Connect sensors already installed to a modern recording system.

Sensors

Thermocouples for this system

Bare bead thermocouples

Fast-responding welded-bead sensors with stripped leads. Covers choosing a type and installation.

Bare bead thermocouples →

Beaded Type T thermocouple

The BW-T-B3: an accurate choice for ambient, HVAC and cold-storage readings.

Beaded T thermocouple →

Build a USB thermocouple kit

Tell us how many points, which thermocouple type and how you want to record, and we’ll quote the iNET-600, iNET-510 and thermocouples as one ready-to-use system.

Request a quote
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