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SENSORAY INSTRUCTION MANUAL SMART A/D DRIVER FOR WINDOWS

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Example: ///////////////////////////////////////////////////////////////////////////

// Program board number 3, channel 7, to interface to a K Thermocouple.

///////////////////////////////////////////////////////////////////////////

#define KTC 12 // Logical Sensor Definition Code for K Thermocouple.

SetSensorType( 3, 7, KTC );

3.8 Sensor Acquisition Functions

3.8.1 GetAmbientTemp()

Function: Returns the ambient temperature from a Sensoray termination board. The returned temperature value is from the

thermocouple cold-junction compensation sensor that is present on all Smart A/D™ termination boards. This

function is useful as a diagnostic tool as it can be used to acquire digitized data from the Smart A/D™ subsystem

without depending on the presence of external sensors.

Prototype: double GetAmbientTemp( long hBD, long tb );

Example: ///////////////////////////////////////////////////////////////////////////

// Fetch the ambient temperature from board 3 at the TB connected

// to the lowest channels.

///////////////////////////////////////////////////////////////////////////

GetAmbientTemp( 3, 0 );

Resistance 27 400 ohm range

28 3K ohm range

29 600K ohm range

Other 31 Disabled: remove channel from scan list

Parameter Type Description

hBD long Board handle.

tb long Specifies the termination board (TB) to be addressed:

8-channel Models: always set to zero.

16-channel Models: 0 = TB for channels 0 to 7, 1 = TB for channels 8 to 15.

32-channel Models: 0 = TB for channels 0 to 15, 1 = TB for channels 16 to 31.

return value long TB temperature, in degrees C.

Input Class LSDC Input Range / Sensor Type

1 2 ... 10 11 12 13 14 15 16 17 18 19

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