Instruction Manual - Sierra Instruments

Sierra Instruments Instruction ManualSmartTrak ® 100 SeriesAirNOTE: If gas is flowing the Pilot Module will immediately begin to accuratelydisplay the gas mass flow rate on the LCD panel. If you have chosen alternate unitsor another gas, the display will show the selected units instead of the above.2. Open the gas supply: SmartTrak is now ready to monitor the gas mass flowrate. Let the instrument warm up for at least 15 minutes for optimalperformance.Your SmartTrak instrument is now ready for use!Pilot Module Operation, Mass Flow ControllersAfter your instrument is installed and the system has undergone a complete leakcheck as discussed in detail in Chapter 2, follow these steps:1. The valve will remain closed until power is supplied. See Chapter 2for wiring instructions.CAUTION: Remember that the valve in the SmartTrak is not a guaranteedpositive shut-off device. For dangerous applications, Sierra recommends use ofan external shut-off safety valve.When power is applied, the flow control valve will operate per the instructions itreceives from the Pilot Module. When the SmartTrak is delivered, the valve will bein the Automatic (Normal) state and the Pilot Module will provide the correct zerosetpoint reference. As a result, the valve will be closed. However, the valve willreturn to the state it was in the last time the instrument was operated.WARNING: If you do not know the setpoint or the valve state of the MassFlow Controller before it was shut down, you must assume that the valve willopen when power is applied. TAKE NECESSARY PRECAUTIONS.2. Power Up Your Instrument: Apply power to your instrument usingSierra’s power supply or your own input power source. See Chapter 2,Figure 2-5: Power Supply Requirements. When power is first applied,the Pilot Module will display:Version2.04XRead ParametersIf no gas is flowing, after another 5-10 seconds the display will read:30