Typical System Setup; Trouble Shooting - TECHCON SYSTEMS TS5420 Manuel D'utilisation

6. Typical system set up
PLANT AIR MUST BE PROPERLY
FILTERED AND DRY. IF NOT, SPECIFY
A 5-MICRON FILTER REGULATOR.
TECHCON SYSTEMS TS5130
CONTROLLER OR EQUIVALENT
MATERIAL
CONSTANT AIR
PULSED AIR
Figure 4.0
Techcon Systems is an OK International Brand
Copyright © All Rights Reserved • TS941 Rev 04/04
7
TS5420
MINIATURE NEEDLE VALVE
FLUID FEED SYSTEM
7.

Trouble shooting

PROBLEM POSSIBLE CAUSE
Fluid pressure too low
Operating pressure too low
Dispense tip clogged or
No Fluid Flow
damaged
Fluid cured in valve
chamber
The stroke adjustment
closed
Fluid pressure fluctuating
Valve operating pressure
Inconsistent
is too low
Fluid Flow
Valve open time is not
consistent
Air trapped in fluid housing
Fluid drools after the
valve closes, eventually Air trapped in fluid housing
stopping
Dirty needle and seat
Worn needle and seat
Steady drip
Fluid pressure exceeds
300 psi
Valve reassembled
incorrectly
Techcon Systems is an OK International Brand
Copyright © All Rights Reserved • TS941 Rev 04/04
8
CORRECTION
Increase fluid pressure
Increase air pressure to 70 psi (4.8
bars)
Replace tip
Clean valve thoroughly
Open stroke adjustment
counterclockwise
Make sure fluid pressure is
constant
Increased valve pressure to 70 psi
(4.8 bars)
Check to make sure the valve
controller is providing a consistent
output
Purge valve
Purge valve
Perform thorough cleaning
Replace worn or damaged part
Lower fluid pressure
Reassemble valve follow
instructions