Sierra Instruments Instruction Manual
Smart-Trak
®
2 Series 100
31
Mass Flow
0.000
sl/m
Air
NOTE:
If gas is flowing and the Pilot Module has a setpoint greater than zero, it
will immediately begin to accurately display the gas mass flow rate on the LCD
panel. If you have chosen alternate units or another gas, the display will show the
selected units instead of those above.
3.
Open the gas supply.
Smart-Trak 2 is now ready to monitor and
control the gas mass flow rate. The display will show 0.000 until it is
given a setpoint. Let the instrument warm up for at least 15 minutes for
optimal performance.
Your Smart-Trak 2 instrument is now ready for use!
CAUTION: DO NOT LEAVE A SETPOINT APPLIED FOR AN EXTENDED
PERIOD OF TIME TO A CONTROLLER WHEN THE GAS SUPPLY IS
SHUT OFF OR BLOCKED
. Damage may result and the instrument will become
hot to the touch. Instead, see below for use of the “Valve Close” feature which
allows you to disable the valve while maintaining the setpoint signal. This may be
set by the Pilot Module, the Smart-Trak 2 Software, or an external analog signal.
Using the Pilot Module Menus & User Interface
The features of the Pilot Module can be considered in three groups:
1
Upper Level Screens
: display information (no password is required to view this
information). These include:
Mass flow rate
Gas (10 options pre-programmed)
Engineering units (mass per unit time)
Current Setpoint with units
Source of Setpoint (analog or digital and type)
Valve operation mode (normal, valve close or purge)
Current meter full scale value with units (user selectable)