5
Getting Started
Getting Started
The major device components are shown in the diagram below.
Most communication with the device is completed through digital communication or analog
signals, as described later in this manual. The LED on the top of device provides the following
feedback:
•
Solid Green
: Power is applied
•
Flashing Green
: Power is applied, serial activity is occurring
•
Solid Red
: Valve override command received
•
Flashing Red
: Error state (mass overrange, temperature overrange, pressure overrange,
totalizer overrange, etc.)
Mounting
The flow controller can be mounted in any position, including upside-down. Mount the
device so that flow passes through the flow body in the direction shown by the flow arrow.
The dimensions of your device and positions of the mounting holes are detailed in the
Factory OEM Mass Flow Devices specification sheet at
alicat.com/imc
.
Filters
When pressure drop is not a concern, use in-line sintered filters to prevent large particulates
from entering the flow body of the controller. Suggested maximum particulate sizes are as
follows:
• 5 microns
for units with flow ranges ≤1
SCCM.
•
20 microns
for units with flow ranges between 1
SCCM and 1 SLPM.
•
50 microns
for units with flow ranges ≥1
SLPM.
