Sensoray 118 - Manual (Page 27)

Sensoray Model 118 Smart A/D™ Instruction Manual 25 Commands: Pressure/Strain Gage
6.4 Pressure/Strain Gage
6.4.1 SetGageTare
Tares the strain/pressure gage connected to a single
channel. The
SetGageTare command may be used to
compensate for the weight of an empty container prior to
measuring the container when it holds some substance.
Before invoking this command, the gage channel should
be calibrated. See the
SetGageZero and SetGageSpan
commands for details.
Driver
// Tare the gage on the specified channel.
VOID SetGageTare( USHORT BasePort, UCHAR Channel )
{
SendByte( BasePort, Channel | CMD_SET_GAGETARE );
}
Example
// An empty truck must be tared prior to loading. The truck scale
// is measured by means of a load cell connected to channel 7. Channel 7 has
// been previously calibrated using the SET GAGE ZERO and SET GAGE SPAN
// commands.
SetGageTare( MyBasePort, 7 ); // tare the empty truck
Command: (112 + Chan)
Response: None