INFICON VSA200 absolute switch - Manual (Page 3)

Operation
The product is ready for operation as soon as it has been
installed.
The gauge is factory calibrated while "standing upright". Due
to changing the mounting orientation, a low zero drift could
occur (0.05 % F.S.).
Setpoint, Switching Characteristics
The setpoint can be read and set to any pressure within the
setting range of the vacuum switch with the communication
software (
→ [1]).
The switching characteristics of the setpoint can be pro-
grammed with the communication software (
→ [1]).
Low Trip Point (default)
If the pressure in the vacuum system is lower than the set-
point, the relay is closed.
Time t
Me
asu
reme
nt value
Off On
Hysteresis
(2% of threshold)
Off
Setpoint
Measurement signal
(Pressure p)
Threshold value
Deinstallation
DANGER
DANGER: contaminated parts
Contaminated parts can be detrimental to health
and environment.
Before beginning to work, find out whether any
parts are contaminated. Adhere to the relevant
regulations and take the necessary precautions
when handling contaminated parts.
Caution
Caution: vacuum component
Dirt and damages impair the function of the vac-
uum component.
When handling vacuum components, take ap-
propriate measures to ensure cleanliness and
prevent damages.
Caution
Caution: dirt sensitive area
Touching the product or parts thereof with bare
hands increases the desorption rate.
Always wear clean, lint-free gloves and use
clean tools when working in this area.
n
Vent the vacuum system.
o
Put the vacuum switch out off operation.
p
Unplug the sensor cable.
Before connecting or disconnecting the pro-
duct, turn off the control system.
q
Remove the vacuum switch from the vacuum system
and install the protective lid.
Schutzkappe
Maintenance, Repair
Under clean operating conditions, the product requires no
maintenance.
The product is factory calibrated while "standing upright". Due
to long time operation, contamination, or operation in other
mounting orientation a zero adjustment may become
necessary.
We recommend returning the product to your local
INFICON service center for service.
Vacuum switch failures due to contamination or
wear and tear are not covered by the warranty.
INFICON assumes no liability and the warranty becomes null
and void if any repair work is carried out by the end-user or
third parties.
Returning the Product
WARNING
WARNING: forwarding contaminated products
Contaminated products (e.g. radioactive, toxic,
caustic or microbiological hazard) can be detri-
mental to health and environment.
Products returned to INFICON should preferably
be free of harmful substances. Adhere to the for-
warding regulations of all involved countries and
forwarding companies and enclose a duly com-
pleted declaration of contamination
*) .
*) Form under www.inficon.com
Products that are not clearly declared as "free of harmful sub-
stances" are decontaminated at the expense of the customer.
Products not accompanied by a duly completed declaration of
contamination are returned to the sender at his own expense.