Krom Schroder CPS 1000 User manual

4.2.2.2 Edition 02.10
➔
www.docuthek.com
D GB F NL I E
© 2008 – 2009 Elster GmbH
Please read and keep in a safe place
Please read through these instructions
carefully before installing or operating. Follow-
ing the installation, pass the instructions on to the
operator. These instructions can also be found at
www.docuthek.com.
Explanation of symbols
• , 1 , 2 ,  ... = Action
▷= Instruction
Liability
We will not be held liable for damages resulting
from non-observance of the instructions and non-
compliant use.
Safety instructions
Information that is relevant for safety is indicated in
the instructions as follows:
DANGER
Indicates potentially fatal situations.
WARNING
Indicates possible danger to life and limb.
CAUTION
Indicates possible material damage.
All interventions may only be carried out by qualified
gas technicians. Electrical interventions may only be
carried out by qualified electricians.
Conversion, spare parts
All technical changes are prohibited. Only use OEM
spare parts.
Transport
On receipt of the product, check that the delivery is
complete (see Part designations). Report any trans-
port damage immediately.
Storage
Store the product in a dry place. Ambient tempera-
ture: see Technical data.
Operating instructions
Translation from the German
D
GB
F
NL
I
E
GB-1
Safety
Contents
CPS 00 – 000
CPS 0 – 4000
CPS 00 – 000 .........................1
CPS 0 – 4000 .........................1
Contents ..............................1
Safety.................................1
Checking the usage .....................2
Installation ............................2
Adjusting the switching pressure pS..........
Wiring ................................
Maintenance ...........................
Accessories ...........................
Tube set ...............................3
Pilot lamp set ...........................4
External adjustment ......................4
Z-angle bracket .........................4
Motor flange............................4
Declaration of conformity ................4
Contact ...............................4

GB-2
D
GB
F
NL
I
E
Checking the usage
CPS
Pressure switch for air for monitoring positive, nega-
tive or differential pressure, for air or non-flammable
gases.
Type code
Code Description
CPS Air pressure switch
00
0
450
510
800
1000
1100
1600
2400
000
4000
Adjusting range [Pa]
20 – 300
20 – 330
30 – 500
100 – 510
50 – 800
100 – 1000
100 – 1100
400 – 1600
200 – 2400
250 – 3000
500 – 4000
GGold contacts
Part designations
36
6
2
6
7
5
1
4
CPS 330 – 4000
8
3
2
7
5
1
4
2
1
73
5
4
CPS 1000, CPS 3000CPS 300 8
8
99
1Positive pressure port (+)
2Negative pressure port (-)
Cable gland
(M16 × 1.5, for cable diameters 4.5 – 10 mm)
4Cover
5Hand wheel with scale
6Holes for bolting
7Z-angle bracket for bolting to the CPS
(included in delivery for CPS 300, CPS 1000,
CPS 3000)
8Type label
9Cover for connection terminals
Inlet pressure p
e max
and ambient temperature – see
type label.
Osnabrück
Germany
CPS
Installation
CAUTION
Please observe the following to ensure that the CPS
is not damaged during installation and operation:
– Protect the connections against dirt or moisture in
the medium to be measured and the surrounding
air.
– Avoid subjecting the CPS to strong or violent vi-
brations.
– Condensation must not be allowed to get into the
housing. At subzero temperatures malfunctions/
failures due to icing can occur.
– When using silicone tubes, only use silicone tubes
which have been sufficiently cured.
▷
The switching pressure p
S
only corresponds to
the scale value SK on the hand wheel when the
diaphram is vertical.
CPS 300 pS= SK pS= SK + 18 Pa pS= SK - 18 Pa
CPS 1000 pS= SK pS= SK + 18 Pa pS= SK - 18 Pa
CPS 3000 pS= SK pS= SK + 18 Pa pS= SK - 18 Pa
CPS 330
to
CPS 4000
pS= SK pS= SK + 13 Pa pS= SK - 13 Pa
CPS 00, CPS 1000, CPS 000
59
40
∅4,2
∅5,5
1 Mount the CPS using the Z-angle bracket.
CPS 0 – 4000
66 ∅4,4
1 Attach the CPS itself using screws or bolt it using
the optional Z-angle bracket.
▷ If the CPS is directly attached, use a maximum of
2 screws to prevent stresses on the CPS.
CPS 00 – 4000
2 Attach 4.75 mm diameter tube to the positive or
negative pressure port.
For measuring positive pressure
▷Attach the tube to the positive pressure port (+).
The negative pressure port is left open to ventilate
the upper chamber of the diaphragm.

GB-3
D
GB
F
NL
I
E
For measuring negative pressure
▷Attach the tube to the negative pressure port (-).
The positive pressure port is left open to ventilate
the lower chamber of the diaphragm.
For measuring differential pressure
▷Attach the tube with the higher pressure to the
positive pressure port (+), attach the tube with the
lower pressure to the negative pressure port (-).
Adjusting the switching pressure pS
▷ The switching pressure can be adjusted using the
hand wheel with scale. The switching pressure
differs from the adjusted setpoint by a maximum
of ± 15%, when it has been set for increasing
pressure and with a vertical diaphragm.
1 Disconnect the system from the electrical power
supply.
2 Generate negative and/or positive pressure on
the CPS.
 Remove the CPS cover.
4 Check the contact position with a measuring
instrument.
1
NC
2
NO
3
COM
NO
2
NC
1
COM
3
5 Set the switching pressure using the hand wheel.
Adjusting range
[Pa]
Switching hys-
teresis [Pa]
CPS 300 20 – 300 7 – 16
CPS 330 20 – 330 8 – 18
CPS 450 30 – 500 10 – 25
CPS 510 100 – 510 13 – 25
CPS 800 50 – 800 15 – 40
CPS 1000 100 – 1000 25 – 40
CPS 1100 100 – 1100 15 – 40
CPS 1600 400 – 1600 20 – 60
CPS 2400 200 – 2400 35 – 75
CPS 3000 250 – 3000 60 – 80
CPS 4000 500 – 4000 40 – 100
Wiring
CPS (silver contact)
24 – 250 V AC:
I = 0.05 – 5 A, cos φ = 1,
I = 0.05 – 1 A, cos φ = 0.6.
CPS..G (gold contact)
12 – 250 V AC:
I = 0.01 – 5 A, cos φ = 1,
I = 0.01 – 1 A, cos φ = 0.6;
12 – 48 V DC:
I = 0.01 – 1 A.
▷If the CPS..G has switched a voltage > 24 V and
a current > 0.1 A once, the gold plating on the
contacts will have been burnt through. It can then
only be operated at this power rating or higher
power rating.
▷In the case of low switching capacities, as 24 V,
8 mA, for example, we recommend using an RC
module (22 Ω, 1 μF) in air containing silicone or oil.
1 Disconnect the system from the electrical power
supply.
2 Remove the CPS cover.
▷
CPS 300, CPS 1000, CPS 3000: remove the
cover for the connection terminals.
 Feed the cable through the cable gland into the
CPS.
COM
3
NC
1
NO
2
4
NO
2NC
1
COM
3
L1(+)
5 Replace the CPS cover and screw into place.
Maintenance
▷We recommend a function check once a year.
Accessories
Tube set
For connecting the CPS to an air duct.
Order No. 74919272

GB-4
D
GB
F
NL
I
E
If you have any technical questions, please contact
your local branch office/agent. The addresses are
available on the Internet or from ElsterGmbH.
We reserve the right to make technical modifications
in the interests of progress.
Elster GmbH
Strotheweg 1, D-49504 Lotte (Büren)
Tel. [phone]
Fax [phone]
[email protected], www.kromschroeder.com
Contact
Pilot lamp set
For indicating the switching status of the CPS.
21
Voltage Order No.
Pilot lamp set red 220/240 V AC 74920492
Pilot lamp set red 110/120 V AC 74920430
Pilot lamp set blue 220/240 V AC 74916122
Pilot lamp set blue 110/120 V AC 74916121
LED set green/red 24 V DC 74921089
LED set green/red 230 V AC 74923275
External adjustment
For adjusting the switching pressure for the pressure
switches CPS 300, CPS 1000 or CPS 3000 when
the cover is closed.
21
Order No. 74916155
Z-angle bracket
For fast installation and removal of the CPS 330
–4000 with diverse mounting options, even with
only one screw.
The angle bracket increases the distance between
pressure switch and mounting plate.
Order No. 74919824
Motor flange
For space-saving attachment of the pressure switch
directly on the fan motor. It is not necessary to drill
holes for mounting the motor flange.
Order No.
CPS 300 74916157
CPS 1000, CPS 3000 74916156
CPS 330 – 4000 74920415
Declaration of conformity
We, the manufacturer, hereby declare that the prod-
ucts CPS 300 to CPS 4000 comply with the require-
ments of the listed Directives and Standards.
Directives:
– 2006/95/EC.
Standards:
– DIN EN 1854.
The production is subject to a Quality System pursu-
ant to DIN EN ISO 9001.
Elster GmbH
Scan of the Declaration of conformity (D, GB) – see
www.docuthek.com