Texas Instruments manual PGA309EVM-USB Software Sensor Emulator Control Panel Tool

PGA309EVM-USB Software Overview www.ti.com

Select the type of temperature sensor that you want to emulate using the Define Temperature Sensor Model control. Depending on the type of temperature sensor selected, you may need to provide some additional information about the sensor (for example, RT resistance, Bridge Resistance, and drift). You may also need to set the sensor emulator range. The sensor emulator has two jumper-selected ranges (10mV/V and 100mV/V). The software must be set to match the jumper setting. Observe the sensor emulator graphs using the Open Sensor Emulator Control Panel button.

Figure 20 shows the sensor emulator control tool.

Figure 20. PGA309EVM-USB Software: Sensor Emulator Control Panel Tool

The Sensor Emulator Control Tool is a pop-up window that can be accessed from the Sensor Definition sub-tab. It displays three graphs that show the operation of the emulated sensor under different pressures and at different temperatures. The two sliders below the graphs adjust the operating point of the sensor emulator. When you adjust the sliders, the cursors on the graph move accordingly to the new operating point. The sensor output (in mV/V) is displayed to the right of the sliders. You can test your calibration at any temperature and pressure using this tool.

30	PGA309EVM-USB	SBOU084 –February 2010
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