Pfeiffer Vacuum PS 115 User manual

BG 5036 BEN / A
(
2016-07
)
O
P
P
O
PE
R
P
S 1
1
P
ressure
S
R
ATI
1
5, S
V
S
witch, Dif
f
NG I
N
V
11
0
f
erential Pr
N
ST
R
0
e
ssure Ad
a
R
UC
T
a
pter, Swi
t
T
ION
S
t
ching Am
p
S
p
lifie
r
Transl
a
a
tion of the original instructions

2BG 5036 BEN / A (2016-07) PS115_SC110.oi
In all communications with Pfeiffer Vacuum, please specify the information on the
product nameplate. For convenient reference copy that information into the space
provided below.
This document applies to products with part numbers
PT R02 110 (PS 115 Pressure Switch)
PT 120 171 -T (Differential Pressure Adapter)
PT 120 172 (Pressure switch adjustment)
PT R02 111 (SV 110 Switching amplifier)
The part number (No:) can be taken from the product nameplate.
We reserve the right to make technical changes without prior notice.
All dimensions in mm.
The references to diagrams, e.g. (4/5), consist of the fig. no. and the item no. in
that order.
The pressure switch PS 115 in connection with the switching amplifier SV 110 is
used to produce pressure dependent signals and for the control of valves and
pumps.
The pressure switch PS 115 can also be used as a differential pressure switch.
Unpack the pressure switch and the switching amplifier immediately after delivery,
even if they are to be put into operation at a later date.
Before doing so, examine the shipping container for any external damage.
Then completely remove the packaging materials.
The shipping container and packaging materials must be kept in the event of
complaints about damage.
Check for completeness.
Carefully examine the pressure switch and the switching amplifier visually.
If any damage is discovered, report it immediately to the forwarding agent and in-
surer. If the damaged part has to be replaced, please get in touch with the orders
department.
The PS 115 is a diaphragm absolute pressure switch. He can also be used as a
differential pressure switch.
Within both pressure switches there is a sensing chamber (1/2) and a reference
chamber (1/5) separated by a highly sensitive sealed diaphragm made of stainless
steel (1/3). A pin (1/6) in the reference chamber (1/5) is led to the outside and
insulated (1/7). The ground connected diaphragm acts as the opposite contact.
This contact configuration is so designed that the diaphragm contacts the pin when
it is unstressed, i. e. with equal pressure in sensing and reference chamber.
Product Identification
Validity
Description
Unpacking and Checking
Design and Function

BG 5036 BEN / A (2016-07
)
Pressure
Operatio
n
Switchin
g
Operatio
n
Supplied
)
PS115_SC110.oi
Switch M
o
n
g
Amplifie
n
Equipme
n
o
de of
r Mode o
f
n
t
For swi
t
and ref
e
ing pre
s
referen
c
heavy-
d
A switc
h
plied wi
t
below t
h
phragm
phragm
diaphra
g
built-in
s
Fig 1 S
c
•Pre
s
•Swi
t
f
t
ch-point setti
n
e
rence cham
b
s
sure is attain
e
c
e pressure b
y
d
uty relay in t
h
h
ing amplifier
t
h heavy-duty
h
e value pres
e
and contact
p
. The SV 110
g
m pressure
s
s
lide switch (
F
c
hematic diag
s
sure switch
P
t
ching amplifi
e
n
g, the adjusti
b
er (1/5) is op
e
e
d. If the pres
y
more than 0
h
e connected
S
is required fo
r
change-over
e
t on the pres
s
p
in in the refe
r
switching am
s
witches, Cat.
F
ig. 5) must b
e
ram of the pr
e
P
S 115 or
e
r SV 110
ng valve (1/4
)
e
ned and clos
e
s
ure in the se
.1 mbar, the
c
S
V 110 switc
h
r
each pressu
r
contact is en
e
s
ure switch, i.
r
ence chamb
e
p
lifier is also
s
Nos. 164 04
t
e
set to the co
e
ssure switch
e
)
between se
n
ed again whe
e
nsing chamb
e
c
ontact opens
h
ing amplifier.
re switch. Th
e
e
rgized when
e. if the cont
a
e
r opens by fl
e
s
uitable to op
e
to 164 07 (ol
d
o
nnected type
e
s
n
sing chambe
r
n the desired
e
r drops belo
w
and energize
e
output relay
the pressure
d
a
ct bet- ween
d
e
xing of the di
a
e
rate the SM
4
d
er versions).
T
of pressure s
w
3
r
(1/2)
switch-
w
the set
s a
sup-
d
rops
d
ia-
a
-
4
2
T
he
w
itch.

4BG 5036 BEN / A (2016-07) PS115_SC110.oi
Contents
Product Identification 2
Validity 2
Description 2
Unpacking and Checking 2
Design and Function 2
Pressure Switch Mode of Operation 3
Switching Amplifier Mode of Operation 3
Supplied Equipment 3
Contents 4
1Safety 5
1.1 Symbols Used 5
1.2 Personnel Qualifications 5
1.3 General Safety Instructions 5
1.4 Liability and Warranty 5
2Technical Data 6
3Installation 8
3.1 Connection to the Vacuum System 8
3.2 Electrical Connection 8
3.2.1 Connection of the Pressure Switch 8
3.2.2 SV 110 Switching Amplifier 9
4Operation 10
4.1 Design Versions and Switch Point Setting 10
4.2 Differential Pressure Adapter 11
4.3 Typical Applications 12
4.3.1 Protection of a Gate Valve which must only be Operated when Pressure
on both Sides Becomes Equal 12
4.3.2 In a Vacuum System it must be Prevented that in Case of Failure Gas
Flows into the Vacuum Chamber 12
4.3.3 Automatic Venting of a Vacuum Chamber 12
4.3.4 Automatic Venting of a Vacuum Chamber to a Slight Overpressure 12
4.3.5 Differential Pressure Monitoring, Positive and Negative Going 13
5Maintenance 14
5.1 Cleaning the Sensing Chamber 14
5.2 Cleaning the reference chamber 14
6Wearing Parts and Original Spare Parts 15
7Accessories 15
8Returning the Product 16
9Disposal 16
Appendix 17
A: Conversion Table 17
EU Declaration of Conformity 18
For cross-references within this document, the symbol (→XY) is used.

BG 5036 BEN / A (2016-07) PS115_SC110.oi 5
1 Safety
DANGER
Information on preventing any kind of physical injury.
WARNING
Information on preventing extensive equipment and environmental damage.
Caution
Information on correct handling or use. Disregard can lead to malfunctions or
minor equipment damage.
Notice
Skilled personnel
All work described in this document may only be carried out by persons who
have suitable technical training and the necessary experience or who have been
instructed by the end-user of the product.
•Adhere to the applicable regulations and take the necessary precautions for the
process media used.
Consider possible reactions with the product materials (→6).
•Adhere to the applicable regulations and take the necessary precautions for all
work you are going to do and consider the safety instructions in this document.
•Before beginning to work, find out whether any vacuum components are conta-
minated. Adhere to the relevant regulations and take the necessary precautions
when handling contaminated parts.
Communicate the safety instructions to all other users.
Pfeiffer Vacuum assumes no liability and the warranty is rendered null and void if
the end-user or third parties
•disregard the information in this document
•use the product in a non-conforming manner
•make any kind of interventions (modifications, alterations etc.) on the product
•use the product with accessories not listed in the corresponding product docu-
mentation.
1.1 Symbols Used
Symbols for residual risks
1.2 Personnel Qualifications
1.3 General Safety
Instructions
1.4 Liability and Warranty

6BG 5036 BEN / A (2016-07) PS115_SC110.oi
2 Technical Data
Switching range 0.5 to 2000 mbar
Overload limit 3000 mbar
Response sensitivity 0.1 mbar
Switching hysteresis 0.5 mbar
Temperature coefficient 0.4 % /K of switching value
Ambient temperature
briefly (max. 8 h)
continuous
120 °C
90 °C
Switching voltage 24 V
Switching current 10 mA
Connector protected plug (DIN 43 650)
Protection type (DIN 40 050) IP 65
Vacuum connection DN 16 KF
Materials in contact with the medium
Sensing volume stainless steel 1.4301, 1.4401, 1.4310,
1.3541, FPM
Reference volume stainless steel 1.4301, 1.4401, 1.3541,
glass; gold
Sensing volume, approx.
including connection port ca. 4 cm3
Reference volume, approx. ca. 20 cm3
Weight 1.3 kg
Mains supply 110 to 130 V
220 to 240 V
Mains frequency 50/60 Hz
Power consumption 3 VA
Output relay
Switching voltage, max.
Switching current, max.
Switching capacity, max.
250 V
5 A
500 V
Response time 30 ms
Release time 7 ms
Control circuit 24 V / 10 mA
Ambient temperature, max. 50 °C
Weight 0.36 kg
Pressure Switch PS 115
SV 110 Switching Amplifier

BG 5036 BEN / A (2016-07
)
Dimens
)
PS115_SC110.oi
ions [mm]
Fig. 2
D
Fig. 3
S
D
imensional d
S
V 110 Switc
h
rawing (witho
h
ing amplifier
(
u
t differential
p
(
dimensional
d
pressure ada
p
d
rawing)
p
ter)
7

8
3 I
n
3.1
C
V
3.2
E
3.2.1
n
stallati
o
C
onnecti
o
V
acuum
S
E
lectrical
Connecti
o
Pressure
o
n
o
n to the
S
ystem
Connecti
o
o
n of the
Switch
T
c
a
t
o
i
n
F
T
•
•
S
F
•
•
o
n
he pressure
s
a
pe. Flange a
o
be floated (
e
n
sulating piec
e
ig. 4 Pressur
e
Th
e
cir
c
pot
e
to
g
he pressure
s
Unscrew fa
(4/2) from t
h
Detach ins
e
S
ocket contact
ig. 5 for conn
e
Connect s
o
Fig. 5).
Connect s
o
Fig. 5).
s
witch is mou
n
a
nd gaskets m
e
lectrically) it
h
e
.
e switch (ele
c
DAN
G
e
terminals of
c
umstances t
o
ential may no
t
g
round.
s
witch is conn
e
a
stening scre
w
he pressure s
e
rt (4/4) apply
t
3 (4/4) and p
e
ction cables.
o
cket contact
1
o
cket contact
2
n
ted vertically.
ust be free of
h
as to be sep
a
c
trical connect
G
ER
the pressure
s
o
the mains v
o
t
exceed the l
e
e
cted as follo
w
w
completely (
4
witch.
ing a screwdr
i
rotective gro
u
1
(4/4) to term
2
(4/4) to term
This ensure
s
dust and gre
a
a
rated from th
e
i
on)
s
witch must n
o
ltage. DANG
E
e
vels of prote
c
w
s:
4
/3); lift-off co
n
i
ver at (4/5).
nd conductor
inal A on the
s
inal B on the
s
BG 5036 BEN / A
s
that conden
s
a
se. If the pre
s
e vacuum sy
s
ot be connec
t
E
R TO LIFE!
T
ctive low volt
a
nnecting box
a
are not conn
e
sw
itching am
p
s
witching am
p
(2016-07) PS115_SC110
s
ate can es-
s
sure switch i
s
s
tem by an
t
ed under any
T
he housing
a
ges referred
a
nd gasket
e
cted! See
p
lifier (see
p
lifier (see
.oi
s

BG 5036 BEN / A (2016-07
)
3.2.2 SV
1
Am
p
)
PS115_SC110.oi
1
10 Switch
p
lifie
r
ing
Fig. 5
C
Reasse
The dia
p
and de
s
The bui
l
For ele
c
For mai
in Fig.
5
served.
in Fig.
5
C
onnection di
a
mble in the r
e
phragm cont
a
s
igned for a m
lt-in slide swit
c
c
trical installa
t
ns voltages o
f
5
. When conn
e
The connecti
o
5
.
a
gram of the
s
e
verse order.
a
ct in the pres
s
aximum load
c
h (5/1) must
t
ion the switc
h
f
110 V to 13
0
e
cting to the
m
o
n of the exte
s
witching amp
s
ure switch is
o
f 24 V / 10
m
be set to the
c
ing amplifier
S
0
V change te
r
m
ains the VD
E
rnal consume
p
lifier
unilaterally c
o
m
A.
c
onnected ty
p
S
V 110 is deli
v
r
minal bridge
c
E
0100 regula
t
e
r which is to
b
o
nnected to g
r
p
e of pressure
v
ered set for
2
c
onnectors a
s
t
ions must be
b
e switched is
9
r
ound
switch.
2
20 V.
s
shown
ob-
shown

10
4
O
4.1
D
S
S
H
S
L
O
peratio
n
D
esign
Ve
S
witch P
o
S
etting Swit
c
H
igher than
2
S
etting Swit
c
L
ower than
2
n
e
rsions a
n
o
int Settin
g
c
hing Pressu
2
0 mbar
c
hing Pressu
2
0 mbar
A
W
T
s
w
T
u
C
B
s
e
t
o
C
O
b
T
a
I
f
w
T
F
N
•
•
•
•
T
n
d
g
res
res
A
suitable vac
u
W
ith adjustabl
e
he adjusting
v
w
itching pres
s
o avoid switc
h
nder clean co
C
ondition: C
o
B
asic adjustm
e
e
nsing and re
f
o
uches the co
n
C
heck this bas
O
pen adjustin
g
y
2 anticlock
w
he relay cont
a
mplifier must
n
not, remove
p
w
ise till the rel
a
hen replace
p
ig 6 Pressur
e
N
ow set desire
At first pro
d
Then close
The amoun
If the press
diaphragm
the connec
t
The switch
he procedure
u
um gauge or
e
switching pr
e
v
alve (1/4) re
s
s
ure to any v
a
h
ing errors, p
r
nditions and
u
o
rrect basic a
d
e
nt of the swit
c
ference cha
m
ntact pin (1/6
)
ic adjustment
g
valve (1/4) r
e
w
ise turns.
a
ct via termin
a
now be open
p
rotective ca
p
a
y is de-ener
g
p
rotective cap
e
switch with
d
e
d switch poin
t
d
uce desired
p
adjusting val
v
n
t of torque fo
r
ure in the se
n
and contact
p
t
ed switching
contact on te
r
is basically t
h
pressure gau
e
ssure in the
r
s
p. (6/4) is fre
e
a
lue within the
r
essure settin
g
u
sing dry gas.
d
justment of t
h
c
h in the fact
o
m
ber the conta
c
)
in the refere
n
.
e
sp. (6/4) usi
n
a
ls 11 and 12
(Fig. 5).
p
(6/1) and tur
n
g
ized and the
a
(6/1).
d
ifferential pre
t
as follows:
p
ressure in th
e
v
e (6/4) turnin
r
the adjustm
e
sing chambe
r
p
in opens by fl
amplifier is e
n
r
minals 11 an
d
h
e same as d
e
g
e is required
r
ange from 0.
5
e
ly accessible
whole range.
g
s below 20
m
h
e pressure s
w
o
ry provided t
h
c
t is just clos
e
n
ce chamber
(
n
g an Allan ke
y
in the connec
n
adjusting sc
r
a
bove-mentio
n
s
sure adapte
r
e
system.
g
clockwise
w
e
nt valve is M
d
r
drops by 0.1
e
xing of the d
n
ergized.
d
12 (see Fig.
e
scribed abov
e
BG 5036 BEN / A
d
for switch p
o
5
to 2000 mb
a
and the user
m
bar should o
n
w
itch.
h
at at equal p
r
e
d. The diaph
r
(
1/5)
y
(size acros
s
c
ted SV 110 s
w
c
rew (6/2) car
e
ned contact i
s
r
w
ith the dyna
m
d
= 3.5 to 4 N
m
mbar the con
iaphragm an
d
5) is closed.
e.
(2016-07) PS115_SC110
int setting.
a
r.
may set the
n
ly be made
r
essure in
r
agm (1/3)
s
flats 5 mm)
w
itching
e
fully clock-
s
open.
m
ometric ke
y
.
m
.
tact between
d
the relay in
.oi