Sierra Instruction Manual
MaxTrak 180
24
3.
Additional Features include:
•
Re-boot the SmartTrak microprocessor
•
Change the Communication Port
•
Links to Sierra Instruments’ Web Site
•
Specifications
4.2
Power Up Your Instruments
WARNING:
The SmartTrak is not a loop-powered device. Do not apply power to the 4-20 outputs.
After your instrument is installed and the system has undergone a complete leak check (discussed in detail in Chapter
2), apply power using Sierra’s power supply or your own input power source. See Chapter 2, for power supply
requirements. The green LED at the top of the left side will light. If your instrument has a Pilot Module, it will
begin its start-up cycle. See Chapter 4 for details on Pilot Module operation.
If you have a Mass Flow Controller, the valve will remain closed until power is supplied. Remember that the valve
in the SmartTrak controller is not a positive shut-off device. When power is applied, the flow control valve will
operate per any instructions it receives. When the SmartTrak is delivered, the valve will be in the Automatic
(Normal) state and the Pilot Module will provide the correct zero setpoint reference for the instrument. As a result,
the valve will be closed. However, the valve will return to the state it was in the last time the instrument was
operated.
WARNING:
If you do not know the position of the valve before it was shut down, you must assume that
the valve will open when power is applied. Take necessary precautions. The SmartTrak is not a loop-
powered device. Do not apply power to the 4-20 outputs.
4.3
Power Up Your Computer
Apply power to your computer per the manufacturer’s recommendations. The SmartTrak Software is compatible
with any computer running the following Windows Operating Systems:
Windows 7
Windows 98, 2
nd
Edition
Windows XP
Windows XP Professional
Windows 2000
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