Alicat MC Series Mass Flow Controller - Manual (Page 42)

42
Maintenance and Recalibration
General: MC-Series Flow Controllers require minimal maintenance. They
have no moving parts. The single most important thing that affects the life
and accuracy of these devices is the quality of the gas being measured. The
controller is designed to measure CLEAN, DRY, NON-CORROSIVE gases.
Moisture, oil and other contaminants can affect the laminar flow elements.
We recommend the use of in-line sintered filters to prevent large particulates
from entering the measurement head of the instrument. Suggested maximum
particulate sizes are as follows:
5 microns for units with FS flow ranges of 0-1 sccm or less.
20 microns for units with FS flow ranges between 0-2 sccm and 0-1 slpm.
50 microns for units with FS flow ranges of 0-1 slpm or more.
Recalibration: The recommended period for recalibration is once every year. A
label located on the back of the controller lists the most recent calibration date.
The controller should be returned to the factory for recalibration within one
year from the listed date. Before calling to schedule a recalibration, please note
the serial number on the back of the instrument. The Serial Number, Model
Number, and Date of Manufacture are also available on the Model Info display
(page 26).
Cleaning: MC-Series Flow Controllers require no periodic cleaning. If necessary,
the outside of the controller can be cleaned with a soft dry cloth. Avoid excess
moisture or solvents.
For repair, recalibration or recycling of this product contact:
Alicat Scientific, Inc.
7641 N Business Park Drive
Tucson, Arizona 85743
USA
Ph. 520-290-6060
Fax 520-290-0109
e-mail: [email protected]
Web site: www.alicat.com