Thermocouple datalogger

May 2005 Data Acquisition & Telemetry

Pico Technology, a PC-based test and measurement company, has introduced a USB (v1.1) version of its TC-08 eight-channel thermocouple datalogger. The unit samples at up to 10 readings per second (more than twice the speed of the serial port version), features built-in cold junction compensation (CJC) and covers the temperature range -270 to 1820°C.

The TC-08 can be used with thermocouple types B, E, J, K, N, R, S and T and outputs can be viewed in °C or mV. The unit is accurate to 0,2% ±0,5°C and has a resolution of better than 0,1°C for most thermocouple types.

The TC-08's USB connectivity allows multiple units to be run on a single PC - making it easy to create systems with up to 80 thermocouples. The TC-08 is supplied with PicoLog software free of charge - full and demo versions which can be downloaded from www.picotech.com.

Alan Tong, Pico Technology's technical director, comments: "The serial version of the TC-08 was launched in 1995 and, with temperature being the most common parameter users wish to measure, fast became one of our most popular datalogging products. However, with serial ports no longer provided on modern PCs, customers had to buy serial-to-USB adapters - but no more: the TC-08 connects to a PC via USB, dispensing with the need for an adapter and delivering enhanced performance."

With the free PicoLog Recorder software, the user can configure multiple (USB) TC-08s, set the sampling interval from 0,1 seconds to several hours and set the maximum number of readings. The user can also tell PicoLog Recorder what to do once the thermocouple readings have been taken - either: Stop; Repeat Immediately (start again); Scroll (oldest recordings disappear); or Repeat After Delay (where the delay is set by the user). The user can also perform mathematical operations on the thermocouple outputs: for example to output one temperature relative to another.

Using PicoLog Recorder, TC-08 data can be viewed, in a spreadsheet and/or in a graph, as it is being recorded. TC-08 data, collected from previous recordings, can also be viewed in PicoLog Player. The TC-08 (USB version) is available now.

About Pico Technology

Established in 1991 and based in Cambridgeshire, United Kingdom, Pico Technology is a market leader in PC oscilloscopes: low-cost alternatives to bench-top and handheld instruments. The company's flagship instrument is PicoScope - a combined oscilloscope and spectrum analyser - available with resolutions of 8, 12 and 16 bits, sampling rates of up to 5 Gsps and memory depths of up to 128 k.

Pico Technology also produces PC oscilloscopes for the automotive industry and has developed a multi-award winning automotive diagnostic kit (comprising an ADC 212/3 PC oscilloscope, current clamps, secondary ignition pickup as well as a range of test clips, leads and probes) that enables automotive technicians to test virtually all electrical/electronic signals on any vehicle.

The company also designs and manufactures a number of data acquisition solutions including the PicoLog dataloggers (ranging from 1 to 22 channels, and 8 to 24 bits resolution), the EnviroMon PC-based and standalone dataloggers, the education datalogger DrDAQ, and a range of dedicated PC-based temperature and humidity recording products.

For more information contact Roger Freer, Rostav Instrumentation & Electronics, 011 440 0185, [email protected]

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