INFICON VSC150A absolute switch, passiv - Manual (Page 20)

Note
- Reassemble the setting machanism in the order com-
pression spring, ball and adjusting screw.
- When screwing in the adjusting screw grease the
O-ring slightly with Lithelen.
Reassemble Vacuum Switch. Set adjusting screw (6/2)
as described in section 2.3.
3.2 Cleaning the reference chamber
Cleaning of the reference chamber is only possible in
the VSC150 Vacuum Switch if the latter is used as a dif-
ferential pressure switch. The reference chamber cannot
be opened but can only be cleansed with solvents.
Proceed as follows:
- Unscrew the differential pressure adapter (6/5) and
inject solvent by means of a syringe. Let solvent act for
a while, shake and pour out.
- Repeat this procedure several times (if nesessary).
Then screw in differenbal pressure adapter again,
tightening uniformly!
- Dry the reference chamber by evacuating with a vacu-
um pump.
- Readjustment of the basic setting is only nesessary if
the measurement chamber has been opened.
3.3 Service at INFICON
Warning Contaminated products (e.g. radioac-
tive, toxic, caustic or microbiological
hazard) can be detrimental to health and
environment.
Products returned to Inficon should preferably be free of
harmful substances. Adhere to the forwarding regulati-
ons of all involved countries and forwarding companies
and enclose a duly completed declaration of contamina-
tion (see Annex).
Products that are not clearly declared as „free of harmful
substances“ are decontaminated at the expense of the
customer.
Products not accompanied by a duly completed declara-
tion of contamination are returned to the sender at his
own expense.
20
20
tina42e1 (2005-03) VSC150.ga
tina42e1 (2005-03) VSC150.ga
Note
- Reassemble the setting machanism in the order com-
pression spring, ball and adjusting screw.
- When screwing in the adjusting screw grease the
O-ring slightly with Lithelen.
Reassemble Vacuum Switch. Set adjusting screw (6/2)
as described in section 2.3.
3.2 Cleaning the reference chamber
Cleaning of the reference chamber is only possible in
the VSC150 Vacuum Switch if the latter is used as a dif-
ferential pressure switch. The reference chamber cannot
be opened but can only be cleansed with solvents.
Proceed as follows:
- Unscrew the differential pressure adapter (6/5) and
inject solvent by means of a syringe. Let solvent act for
a while, shake and pour out.
- Repeat this procedure several times (if nesessary).
Then screw in differenbal pressure adapter again,
tightening uniformly!
- Dry the reference chamber by evacuating with a vacu-
um pump.
- Readjustment of the basic setting is only nesessary if
the measurement chamber has been opened.
3.3 Service at INFICON
Warning Contaminated products (e.g. radioac-
tive, toxic, caustic or microbiological
hazard) can be detrimental to health and
environment.
Products returned to Inficon should preferably be free of
harmful substances. Adhere to the forwarding regulati-
ons of all involved countries and forwarding companies
and enclose a duly completed declaration of contamina-
tion (see Annex).
Products that are not clearly declared as „free of harmful
substances“ are decontaminated at the expense of the
customer.
Products not accompanied by a duly completed declara-
tion of contamination are returned to the sender at his
own expense.