Krom Schroder CPS 1000, CPS 4000, CPS 330, CPS 300, CPS 3000 Operating Instructions Manual

4.2.2.2 Edition 02.10

www.docuthek.com

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Safety

➔

Please read and keep in a safe place

Operating instructions

CPS 00 – 000
CPS 0 – 4000

Translation from the German

© 2008 – 2009 Elster GmbH

Contents

CPS 00 – 000 ......................... 1

CPS 0 – 4000 ......................... 1

Contents ..............................1

Safety.................................1

Checking the usage .....................2

Installation ............................2

Adjusting the switching pressure p

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

S ..........

carefully before installing or operating. Follow-

Please read through these instructions

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 non­compliant 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 trans­port damage immediately.

Storage

Store the product in a dry place. Ambient tempera­ture: see Technical data.

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Checking the usage

CPS

Pressure switch for air for monitoring positive, nega­tive 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
G Gold contacts

Part designations

5

1

2

7

3

8

6

1

2

3

6

CPS 330 – 4000

1 Positive pressure port (+)
2 Negative pressure port (-)
 Cable gland

(M16 × 1.5, for cable diameters 4.5 – 10 mm)

4 Cover
5 Hand wheel with scale
6 Holes for bolting
7 Z-angle bracket for bolting to the CPS

(included in delivery for CPS 300, CPS 1000,
CPS 3000)

8 Type label
9 Cover for connection terminals

Inlet pressure p
type label.

and ambient temperature – see

e max

Osnabrück
Germany

CPS

Adjusting range [Pa]

1

9

2

4

7

CPS 1000, CPS 3000CPS 300

6

4

5

8

8

20 – 300
20 – 330
30 – 500

100 – 510

50 – 800
100 – 1000
100 – 1100
400 – 1600
200 – 2400
250 – 3000
500 – 4000

9

4

3

7

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 pS only corresponds to

the scale value SK on the hand wheel when the
diaphram is vertical.

CPS 300

5

CPS 1000
CPS 3000
CPS 330

to
CPS 4000

CPS 00, CPS 1000, CPS 000

1 Mount the CPS using the Z-angle bracket.

CPS 0 – 4000

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.

pS = SK
pS = SK
pS = SK

pS = SK

pS = SK + 18 Pa pS = SK - 18 Pa
pS = SK + 18 Pa pS = SK - 18 Pa
pS = SK + 18 Pa pS = SK - 18 Pa

pS = SK + 13 Pa pS = SK - 13 Pa

∅ 4,2

40

∅ 5,5

59

∅ 4,4

66

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