Pico TC08 USB THERMOELEMENT DATA LOGGER PP222 Manual Do Utilizador

0

- Use 

.

Interval

- Actual interval allowed by the driver.

short usb_tc08_get_single( short   handle,

float * temp,

short * overflow_flags,

short   units)

The channels must be set up before calling this function, and the unit must not have been put into
Streaming mode with 

, as this will cause  usb_tc08_get_single to fail. The function

will convert all readings on demand. For more details and an example see the 

section.

handle

- Specifies the USB TC-08 unit.

temp

- Pointer to an array of length [9]. There are 9 channels on the

USB TC-08 (8 + cold junction) and the readings are always
placed in the array subscript corresponding to the channel
number. Channels which are not enabled are filled with  QNaN
values.

overflow_flags

- Pointer to a variable containing a set of bit flags that are set

high when an overflow occurs on a particular channel. An
overflow occurs when the input signal is higher than the
measuring range of the USB TC-08.

The lowest significant bit (bit 0) represents channel 0 (the cold
juction channel) and bit 8 represents channel 8 (the last
thermocouple channel). Bitwise comparisons should be
performed to determine the overflow state of each channel.

units

- Specifies the temperature units for returned data:

0: USBTC08_UNITS_CENTIGRADE
1: USBTC08_UNITS_FAHRENHEIT
2: USBTC08_UNITS_KELVIN
3: USBTC08_UNITS_RANKINE

0

- An error occurred, use 

 to get the

code.

1

- The function succeeded.

long usb_tc08_get_temp( short   handle,