Initial Operation
VTK-TR-BA-072e-1 - User Manual MDS 358X Series
6.3 Installation of the Microdispensing System
Prior to installation, verify the conditions in the intended location, with respect to the
specification of the system and information detailed in this chapter.
The control unit and the valve have to be installed strictly in conformity with the procedures
described below. The system requires:
• Power supply
• Pneumatic supply
INFORMATION
Read chapter “Safety Notes” first
The entire procedure of installation is reserved to persons reliably informed about the safety
considerations (see chapter 2, page 8).
6.3.1 Installation of the Control Unit
The control unit is designed as a 19” plug-in module, which has to be fixed in the corresponding
rack by means of four pan-head screws at the front side. Leave sufficient space around the unit to
simplify service. Ventilation should be available. Recommended are cases complying with
enclosures according to EN 61010-1 with regard to fire protection.
IMPORTANT NOTE
Potential damage to the control unit
Do not close the four pan-head screws too tight; otherwise the front panel can be damaged (see
torque table Page 19).
To avoid overheating and ensure the required ventilation, a minimum distance between the
control unit and any other object should be maintained (at least 1.5 cm). Heat should neither be
accumulated nor externally be introduced. Do not obstruct natural convection. Ventilation from
the bottom side and air exhaust above is important. Minimum width of ventilation openings is
8 cm x 8 cm.
For high-duty applications (from ca. 300 Hz) or in the case of an air cooled model (AC variants), a
rack with separate ventilation is advisable, since in these situations an airflow of 30 m
3
/h for each
control unit is compulsory.
6.3.2 Installation of the Valve as Part of a Machine
Preferably, mount the valve on an automatic XYZ table or in a similar device (XYZ positioning
system). Stable seat at the fixture of Z-axis is imperative, as the valve should not become loose
during the dispensing process. For this purpose, insert two M4 hex screws to a depth of 4 mm,
through the bores located at the narrow side of the valve. Their distance center to center
amounts to 45 mm. To improve accuracy when positioning the valve on a receptacle,
additionally use the alignment bore and the long hole, located on the narrow side of the valve as
well.
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