Vermes MDS 3010A-FA - Selected Applications Explained Step by Step; Start-Up and Dispensing; Change of Valve or Control Unit

Manual Micro Dispensing Systems MDS 3010A-FA and MDS 3020A-FA
VTK-VS-BA-002 Revision B 34
Cyclohexane
resistant
non resistant
resistant
Cyclohexanol
resistant
non resistant
resistant
Dimethyl formamide (DMF)
non resistant
resistant
non resistant
PEEK
Acetic acid
non resistant
non resistant
non resistant
PTFE
Ethanol
non resistant
resistant
resistant
Heptane
resistant
non resistant
resistant
Hexane
resistant
non resistant
resistant
Isopropanol
resistant
resistant
partially
resistant
Methylene chloride
partially resistant
non resistant
non resistant
PEEK,
PTFE
Nitromethane
non resistant
partially resistant
non resistant
PTFE
Pentane
resistant
non resistant
resistant
Mercury
resistant
resistant
Resistant
Silicon oil
resistant
resistant
Resistant
Toluene
non resistant
non resistant
non resistant
PEEK,
PTFE
Water
no information
no information
no information
PEEK,
PTFE
Xylole
resistant
non resistant
non resistant
Table 13: Compatibility of sealing materials
10. Selected applications explained step by step
10.1. Start-up and Dispensing
Step 1:
Before you start running the Micro Dispensing Valve, make yourself familiar with the
manual. Take care about the safety instructions.
Step 2:
After that, mount the valve on the spot. The particular details are found in chapter 8.
Step 3:
Connect the line cord and the valve with the control unit and the switch on the control
unit.
Step 4:
Now you have to adjust the nozzle insert to the tappet. For this, you need to carry out
the “Adjust-Process” (chapter 5). The green LED must always be on when you start the
dispensing process!
Step 5:
The valve is now ready for operation. You simply have to provide the fluid (chapter 4).
Step 6:
Enter the parameter setting: Rising 0.5, Open Time 1.5, Falling 0.17, Delay 5-30,
Needle Lift 50 and Number of Pulses 500-2000. Please dispense (by pressing )
approx. 500-2000 jets (You can determine the number of jets by choosing an
appropriate “Number of Pulses”). This procedure will remove any enclosed air in the
system.
Step 7:
Now you can start your desired dispensing. For this just press (a jet series is
started according to the pulse parameters you entered) or use the command
VALVE:OPEN.
Attention!!! Never use the valve without nozzle insert. Otherwise the valve may be damaged.
10.2. Change of valve or control unit
Step 1:
Finish all dispense processes so the valve is non-operative.
Step 2:
Take care that no dispense fluid may leak. Therefore you have to lower the supply
pressure to ambient pressure. It might be necessary to disconnect or empty the
cartridge respectively the supply container. The cartridge can be closed with the
cartridge locking pin.
Step 3:
Switch-off the control unit MDC 3090A-FA.
Step 4:
Separate the valve from the fluid supply.