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2.0 PRINCIPLE OF OPERATION
Novatec MCS-405A CONTROLLERS are designed to operate a single vacuum power
unit to convey material to a maximum of six stations. Each vacuum receiver may be
turned on individually with its separate ON/OFF switch. It will sequentially load each
station that needs material and skip each station that is full. The MCS-405A does not
include Blowback nor a NO-LOAD alarm.
This controller cannot control proportioning, but an additional control box (PC-1) can be
added to each station where proportioning is required. Proportional valves are capable
of providing a layering or blending effect to the materials conveyed. In addition, the PC-
1 adds Blowback capability to the stations so equipped.
3.0 UNPACKING AND INSPECTION
The MCS-405A controller is shipped complete and is fully programmed from the
factory. After receipt of the unit, completely inspect it for damage. Although, the units
are packaged securely, vibration and mishandling during transit can cause damage. All
screws, bolts and other connections should be checked to make sure they have not
come loose in transit. Report any damage immediately to the transportation company.
4.0 INSTALLATION
4.1 General
The single most important activity performed to ensure satisfactory operation of
a pneumatic convey system is the actual installation of the equipment, with
personnel safety weighted at every decision point. All components should be
located so that material lines and vacuum lines are as short as possible. Elbows
or other changes in direction are minimized. The material conveying line should
be horizontal and/or vertical and as direct as possible with no slope. Care needs
to be taken that all connectors are vacuum tight. All rigid conveying tubing should
be properly supported by the user to provide a safe, but secure installation. It's
generally acceptable to use flexible hose and clamps to connect material pick up
lances, vacuum chambers, etc., to material or vacuum lines. The flexible hose
should be only as long as needed since excess hose will reduce the efficiency of
the system. The hose should not sag. The conveying lines should be grounded
to prevent "shocks" from static electricity that may be generated by some
materials as they are conveyed.
Rigid tubes and elbows should be connected together with bolted couplers. Each
tube end should be square cut, round, and without burrs. The tube ends should
butt together when installed, with the bolted coupler centered over the joint.
All national and local codes need to be followed. Proper grounding of all
equipment is important. Check the electrical wiring schematic for wiring numbers
and details. The following describes installation of typical system components.
© 2018 Novatec, Inc All Rights Reserved
MCS-405A IM 13 OCT 2018
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