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USB TC-08 Help

USBTC08044-2

Example

The following code is a fragment of a C application demonstrating how to use Streaming

mode with the USB TC-08 driver:

//==================================================

// Setting up and running the unit in Streaming mode

//==================================================

usb_tc08_set_mains

(handle,

);

// use 50Hz mains noise rejection

for

(channel =

; channel <

; channel++)

{

// set each channel up as a type K thermocouple

// channel 0 is the cold junction and will be enabled

// by setting the third argument to anything other than ' '

usb_tc08_set_channel

(handle, channel,

'K'

);

}

// find out how fast the unit can sample in its current setup state

minimum_interval =

usb_tc08_get_minimum_interval_ms

(handle);

usb_tc08_run

(handle, minimum_interval);

// sample as fast as possible

// not required (just illustrates that the application

// can be idle while the driver collects the readings)

Sleep(

10000

);

// use a two dimensional array with an array of readings for each

channel

// In a real application, this would be a nested loop to regularly poll

// the unit for readings

for

(channel =

; channel <

; channel++)

{

no_of_readings =

usb_tc08_get_temp

( handle,

&reading_buffer[channel],

&times_buffer[channel],

buffer_length,

&overflows[channel],

channel,

// degrees Celsius units

);

// do not fill missing readings

}

// finished polling, now do something with the readings

// if overflows[channel] is high, then one of the readings

// in reading_buffer[channel] has exceeded the input range

// of the USB TC-08

// only stop the unit when we've completely finished streaming

usb_tc08_stop

(handle);

Note: You should close down all other applications while you are performing any timing-

critical data logging tasks. Check that the Windows scheduler does not have any activities

planned during the logging session.

3.2.3

Get Single mode

is an operational mode in which readings are produced on demand,

using the

usb_tc08_get_single

function. Since the function relies entirely on the timing of

the calling application, it is ideal for time intervals greater than 1 minute. If high-speed

sampling is required, use

Streaming mode

Number of Channels	8
Temperature Range	-270°C to +1820°C
Thermocouple Types Supported	B, E, J, K, N, R, S, T
Interface	USB
Operating System Compatibility	Windows, Linux, macOS
Operating Temperature Range	0°C to +50°C
Storage Temperature Range	-20°C to +70°C
Power Supply	USB
Sampling Rate	10 samples per second
Accuracy	±0.2°C

PICO USB TC-08 User Manual

Table of Contents

Questions and Answers:

PICO USB TC-08 Specifications