Sierra Instruments Instruction Manual
Smart-Trak
®
2 Series 100
49
Gas (10 options pre-programmed, one must be AIR)
Engineering units (mass per unit time)
Current Setpoint with units
Source of Setpoint (analog or digital and type)
Valve operation mode (normal, valve shut or purge)
Current meter full scale value with units (user selectable)
2.
Lower level Screens that permit changes to instrument operation In our
software, these screens appear as white boxes. They include:
Setpoint value
Engineering units
Gas
Valve operation
Source of the setpoint signal
Form of the output signals
Full scale of the instrument
Zero meter
Span meter
3.
Additional Features include:
Re-boot the Smart-Trak 2 microprocessor
Change the Communication Port
Links to Sierra Instruments’ Web Site
Specifications
Power Up Your Instrument
CAUTION: The Smart-Trak 2 is not a loop-powered device. Do not apply
power to the 4-20mA 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 Smart-Trak 2 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 Smart-Trak 2 is delivered, the valve will be in the
Automatic (Normal) state and the Pilot Module will provide the correct zero