Alicat LC Series Liquid Flow Controller - Manual (Page 3)

3
Notes for Using Alicat Water Flow Devices
► USE ONLY PURE, CLEAN DI OR DISTILLED WATER IN THIS DEVICE.
► DO NOT use tap water or water with any biological components,
minerals or oils. Any of these substances will affect the viscosity
of the water (creating flow measurement inaccuracies). More
importantly, these impurities will quickly build up in the laminar
flow zone, cause corrosion, and render the measuring capabilities
of the device useless. Pure DI water itself is corrosive to some
extent, but it is the contaminants in your system that will be most
detrimental to your Alicat liquid water flow meter.
If you cannot meet the requirement of pure water, then do not
use the Alicat water flow device in your application. Damage
caused by impurity build up is not covered by the warranty.
► Please read the operating manual that accompanied your device.
Keep the manual for future reference.
► When first using the Alicat water meter or controller for the day,
please take the following precautions:
1. Apply your source pressure (approx. 20-30 psig for best
results) to the device with the downstream flow blocked off.
2. Then slightly open both bleed ports (DO NOT completely
remove the screws) and allow any trapped air to escape.
Allow some flow and let water pass through while bleeding
(if the unit is a controller be sure to give it at least a 50%
set-point). See page 11 of the manual for more information
regarding bleed ports and bleeding.
3. Try not to get any water in-between the black electronics case
and the stainless steel flow body. Wipe up any excess water
around these seams.
4. Tighten up both bleed screws, and then block the downstream
water flow again. Visually verify zero flow through.
Alicat Scientific, Inc.
7641 N Business Park Drive
Tucson, AZ 85743 USA
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