Vermes MDS 358X - Initial Liquid Supply; Removing Air Inclusions from the Fluid Box

Initial Operation
VTK-TR-BA-072e-1 - User Manual MDS 358X Series
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6.6 Initial Liquid Supply
– Step 1: If not using a prefilled cartridge, fill an empty one with the required fluid, till up to
80 % of its capacity.
– Step 2: Insert the cartridge into the corresponding holder and screw it onto the Luer-Lock
connector, rotating clockwise.
– Step 3: Place the compressed-air adaptor onto the cartridge and rotate clockwise until it
latches in place.
– Step 4: Connect the PVC hose with coupler plug KS4-CK-6 to air supply. A coupler socket type
KD4-1/2-A is required.
– Step 5: After establishing a convenient dispensing pressure, activate the pneumatic supply.
IMPORTANT NOTE
Check for leakage
All of the parts must be installed correctly, and the entire configuration must be leak-tight –
otherwise the dispensing fluid can trickle out in an uncontrolled manner.
Valves designed by VERMES Microdispensing can be operated at a relatively low supply pressure,
in the range between 0 bar and 7 bar. This upper limit should not be exceeded in normal
applications; in most cases, even a value of 4 bar is sufficient.
Standard values:
• Low-viscous fluids (e.g. water): 0.5 – 1.5 bar
• Medium viscosity (e.g. SMT-adhesives): 1.5 – 2.0 bar
• High viscosity (e.g. pastes): 2.0 – 7.0 bar
IMPORTANT NOTE
Do not activate system without dispensing medium
Except for the adjust, do not activate the system “dry” (i.e. without dispensing medium).
Otherwise, it might damage the system. For flushing the valve keep within the following limits:
• Needle Lift max. 80
• Falling min. 0.13
6.7 Removing Air Inclusions from the Fluid Box
Air must be removed from the fluid box, for instance after the exchange of a cartridge.
Save the current dispensing parameters beforehand (see paragraph 7.6, page 67).
Confirm the following parameter selection:
Rising 0.5, Open Time 1.5, Falling 0.17, Delay 5–30, Needle Lift 75, Number of Pulses 500–2000
Dispense a quantity of ca. 500 to 2000 shots by pressing [trig].
When this measure is complete, retrieve the initial parameters stored beforehand (see
paragraph 7.7, page 67) and start the dispensing process.