Sera R 204.1 Series User manual

Solenoid diaphragm pump
Series R/RS 204.1
Operating Instructions
TA
416
Rev.
11
en
04/2013
Subject to technical modifications!
www.sera-web.com
1
Product: Solenoid diaphragm pump
Type: R 204.1 –0,4 e
R 204.1 –1,2 e
R 204.1 –2,4 e
R 204.1 –6,0 e
R 204.1 –7,0 e
R 204.1 –10 e
R 204.1 –14 e
R 204.1 –25 e
R 204.1 –30 e
R 204.1 –35 e
Product: Self ventilating
Solenoid diaphragm pump
Type: RS 204.1 –0,4 e
RS 204.1 –1,2 e
RS 204.1 –2,4 e
RS 204.1 –6,0 e
RS 204.1 –7,0 e
RS 204.1 –10 e
RS 204.1 –14 e
RS 204.1 –25 e
RS 204.1 –30 e
RS 204.1 –35 e
Please state here the exact type and serial
number of your pump.
(can be read off the type plate on the pump)
Type:
Serial No.:
These data are important in case of queries or for ordering
spare and wearing parts and must absolutely be stated.
Manufacturer:
Seybert & Rahier
GmbH + Co. Betriebs-KG
sera-Straße 1
34376 Immenhausen
Germany
Tel. [phone]
Fax. [phone]
www.sera-web.com
[email protected]
CAUTION !
Keep the operating instructions for future application!

Solenoid diaphragm pump
Series R/RS 204.1
Operating Instructions
2
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Table of contents:
1General...................................................................4
2Types......................................................................4
2.1 Type code...............................................................4
2.2 Type plate...............................................................4
2.3 Materials.................................................................5
2.4 Viscosity, pumped medium.....................................5
2.5 Dosing range..........................................................5
2.6 Noise measurement................................................5
3Safety instructions ..................................................5
3.1 Note on quality........................................................5
3.2 Marking of notes.....................................................5
3.2.1 Marking of notes in these operating instructions............5
3.2.2 Marking of notes on the product.....................................5
3.3 Personnel qualification and training.........................5
3.4 Dangers in case of inobservance of the
safety instructions...................................................5
3.5 Safety conscious working........................................6
3.6 Safety instructions for the owner / operator.............6
3.7 Safety instructions for maintenance-,
inspection and installation work...............................6
3.8 Arbitrary modification and spare parts production ...6
3.9 Improper operations................................................6
3.10 Intended use...........................................................6
3.11 Personal protection for maintenance and service....6
4Transport and intermediate storage ........................7
4.1 General...................................................................7
4.2 Storage...................................................................7
5Components of the solenoid diaphragm pump........8
5.1 R 204.1...................................................................8
5.2 RS 204.1.................................................................9
6Technical specifications.........................................10
6.1 Dimensions R 204.1..............................................10
6.2 Dimensions RS 204.1............................................12
6.3Technical data.......................................................14
6.4 Usable stroke length range with self-ventilation.....16
7Functional description............................................18
7.1 General.................................................................18
7.2 Components of the solenoid diaphragm
pump R/RS 204.1..................................................18
7.2.1 Assembly pump / Motor housing..................................18
7.2.2 Pump body....................................................................19
7.2.3 Manual vent valve (only FRP-execution
R 204.1-1,2e - ...-14e, RS 204.1-6,0 - …-14e).............19
7.2.4 Electronics (with control panel).....................................19
7.2.5 Suction / pressure valve ...............................................20
7.2.6 Automatic ventilation device (RS- design)....................20
8Assembly / Installation...........................................21
8.1 Installation instructions..........................................21
8.1.1 Provide overpressure protection...................................22
8.1.2 Prevent a backflow of the pumped medium .................23
8.1.3 Eliminate undesired siphoning......................................23
8.1.4 How to ensure an gas-free suction...............................24
8.1.5 Install the empty-tank alarm .........................................24
8.1.6 How to avoid an emptying of the suction line...............25
8.1.7 Line strainer ..................................................................25
8.1.8 Suction via a siphon pipe..............................................26
8.1.9 In case of slightly degassing dosing media..................26
8.1.10 Damping of the pulsation..............................................27
9Electrical connections............................................28
9.1 Electric supply.......................................................28
9.2 Connecting the control cables ...............................29
9.2.1 Pulse input ....................................................................30
9.2.2 Analog input..................................................................30
9.2.3 External stop input........................................................30
9.2.4 Level input with pre-alarm and dry run.........................30
10 Operation..............................................................31
10.1 Operating elements...............................................31
10.2 LED operation indicators.......................................31
10.3Key operation........................................................31
10.4 Stroke length adjustment.......................................31
10.5 Stroke frequency adjustment.................................32
10.6 Configuring the level input.....................................32

Solenoid diaphragm pump
Series R/RS 204.1
Operating Instructions
TA
416
Rev.
11
en
04/2013
Subject to technical modifications!
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3
10.7 Venting settings (only with RS 204.1)...................33
10.7.1 Manual venting.............................................................33
10.7.2 Venting after switching on the pump............................34
10.7.3 Cyclical venting.............................................................34
10.7.4 Switching off the venting...............................................35
11 Maintenance.........................................................35
11.1 Wearing parts .......................................................35
11.2 Spare parts........................................................... 35
11.3 Spare and wearing parts.......................................36
11.3.1 Solenoid diaphragm pump R 204.1-0,4e ... -14e.........36
11.3.2 Solenoid diaphragm pump R 204.1-25e ....-35e..........37
11.3.3 Solenoid diaphragm pump RS 204.1-0,4e ... -14e.......38
11.3.4 Solenoid diaphragm pump RS 204.1-25e ....-35e........39
11.4 Changing working diaphragm................................40
12 Fault analysis and corrective action ......................41
13 Foreseeable misuse..............................................43
13.1 Transport..............................................................43
13.2 Assembly and installation......................................43
13.3 Start-up.................................................................43
13.4 Operation..............................................................43
13.5 Maintenance / Repair............................................ 43
13.6 Cleaning ...............................................................44
13.7 Shut-down ............................................................44
13.8 Disassembly.........................................................44
13.9 Disposal................................................................ 44
14 Shut-down ............................................................44
15 Disposal................................................................44
15.1 Dismantling and transport.....................................44
15.2 Complete disposal ................................................44

Solenoid diaphragm pump
Series R/RS 204.1
Operating Instructions
4
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Seybert & Rahier
D-34376 Immenhausen sera
Typ Nr.
Ql/h PW
bar
min./max. Umax. V
p2max. bar Umin. V
n1/min Hz IP 65
p1
N
N
1 General
Before commissioning and during operation of the sera –so-
lenoid diaphragm pump the respective regulations valid at the
place of installation are to be observed.
The sera solenoid diaphragm pump is delivered ready for in-
stallation. Carefully read these instructions and especially the
safety instructions herein contained before installation and ini-
tial start-up of the pump.
2 Types
2.1 Type code
Example:
Solenoid diaphragm pump type R 204.1-10e
R
204.1
10
e
Pump control
Rmanually controlled
RS self ventilating
R
204.1
10
e
Indication of model range/stroke mechanism
R
204.1
10
e
Indication of nominal delivery rate
This number states the nominal delivery rate in
litres/hour.
(standard version referring to water)
R
204.1
10
e
Indication of the pump design
esingle solenoid diaphragm pump
2.2 Type plate
Each sera solenoid diaphragm pump is factory provided with
a type plate. The following information can be found on this
type plate.
12 3 4 5 6 7 8 9 10
Fig. 01 Type plate
Explanation of the indications on the type plate
1
Type
Pump type
2
QNl/h
Nominal delivery rate
Delivery rate which the pump was or-
dered for, based on the stroke frequen-
cy nN, the nominal delivery height
p2max. and the delivery medium stated
in the supply contract.
3
p1min/max [bar]
Minimum/maximum permissible
pressure in the pump inlet
Minimum/maximum permissible pres-
sure in the inlet cross section which the
pump can be used for. Please consider
that pressure depends on rotation
speed, delivery rate, temperature and
static pressure at the inlet.
4
p2max [bar]
Maximum permissible pressure in
the pump outlet
Maximum permissible pressure in the
outlet cross section which the pump can
be used for. Please consider that pres-
sure depends on rotation speed, deliv-
ery rate, temperature and static pres-
sure at the outlet..
5
nN1/min
Nominal stroke frequency
6
[Hz]
Frequency
7
No.
Serial number of the pump
8
P [W]
Middle power draw
9
U max. [V]
max. operating voltage
10
U min. [V]
min. operating voltage
Table 01 Explanation of type plate

Solenoid diaphragm pump
Series R/RS 204.1
Operating Instructions
TA
416
Rev.
11
en
04/2013
Subject to technical modifications!
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5
2.3 Materials
The materials used are stated in the order confirmation and the
product description.
2.4 Viscosity, pumped medium
The solenoid diaphragm pump is suitable for fluids with vis-
cosities < 100 mPas.
2.5 Dosing range
The flow capacity of the solenoid diaphragm pump can be con-
trolled manually via the stroke length adjustment and/or stroke
frequency adjustment (0... 100 %).
The linear dosing range depends on the pump type and is be-
tween 20%...100% or 30%...100%.
2.6 Noise measurement
According to DIN 45635 the sound pressure level measured of
the solenoid diaphragm pumps is approx. 58 dB (A).
3 Safety instructions
3.1 Note on quality
Observance of these operating instructions and, in particular,
the safety instructions, helps to
avoid dangers to persons, machines, and environment
increase the reliability and service life of the pump and
the entire system
reduce repair cost and downtime.
The sera quality management and quality assurance system
for pumps, systems, fittings, and compressors is certified ac-
cording to ISO 9001:2008.
The sera solenoid diaphragm pump complies with the valid
safety requiremens and accident prevention regulations.
CAUTION !
Always keep these operating instructions within reach at
the place of installation of the pump.
CAUTION !
Pay attention to the safety data sheet of the pumped me-
dium! The owner must take corresponding accident pre-
vention measures to protect operating personnel from
danger through the pumped media used!
3.2 Marking of notes
3.2.1 Marking of notes in these operating
instructions
Special notes in these operating instructions are marked with
the general danger symbol
(safety symbol in compliance with DIN 4844 –W9)
The safety sign appears in the following cases:
If improper observance or non-observance of the operat-
ing manual, work instructions, specified operating proce-
dures and similar can lead to personal injury or accidents.
If improper observance or non-observance of the operat-
ing manual, work instructions, specified operating proce-
dures and similar can lead to damage to property.
Due to danger of causticization personnel must wear pro-
tective clothing (safety goggles, safety gloves and safety
apron) for maintenance and repair work on parts which
come into contact with hazardous products or for chang-
ing the containers.
3.2.2 Marking of notes on the product
Symbols which are directly attached to the pump, e.g. arrows
for direction of rotation or symbols for fluid connections are to
be observed and kept in legible condition.
3.3 Personnel qualification and training
The personnel who operate, maintain, inspect and install the
solenoid diaphragm pump must be suitably qualified. Range of
responsibility, and supervision of the personnel are to be clear-
ly defined by the owner. If the personnel do not have the
knowledge required it is to be trained and instructed according-
ly. If required such a traning can be carried out by the manu-
facturer /supplier upon order of the owner. The owner must
also ensure that the personnel have understood the operating
instructions.
3.4 Dangers in case of inobservance of the
safety instructions
Inobservance of these safety instructions can result in danger
to persons, hazards to the environment and damage to the
pump.
Inobservance can result in:
Failure of important functions of the pump/system
Inobservance of prescribed methods for maintenance and
servicing
Danger to persons through electrical, mechanical and
chemical influences
Hazards to the environment through leaking dangerous
media

Solenoid diaphragm pump
Series R/RS 204.1
Operating Instructions
6
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416
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en
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3.5 Safety conscious working
The safety instructions specified in this operating manual, the
national regulations for accident prevention, the safety regula-
tions for the pumped medium valid at the place of installation
as well as internal working-, operating-, and safety instructions
of the owner are to be observed.
3.6 Safety instructions for the owner /
operator
Leaking pumped media must be disposed off in such a way
that any danger to persons and hazards to the environment
are excluded. The legal regulations are to be observed.
Dangers through electrical energy are to be precluded.
3.7 Safety instructions for maintenance-,
inspection and installation work
The owner must ensure that all maintenance-, inspection- and
installation work are exclusively carried out by authorized and
qualified personnel who have read the operating instructions
carefully.
The spare parts used must comply with the requirements of
the respective operating instructions.
All screwed connections and connections may only be re-
moved when the system is not under pressure.
3.8 Arbitrary modification and spare parts
production
Modification to and changement of the pump is only permitted
after previous agreement of the manufacturer. Original spare
parts and accessories approved by the manufacturer increase
safety.
CAUTION !
If non-approved parts are used or if the pump is modified
arbitrarily the manufacturer refuses any liability claims.
3.9 Improper operations
Operating safety of the supplied diaphgram pump is only guar-
anteed if the product is used as intended, according to the de-
scriptions in Chapter 3.10 of these operating instructions.
3.10 Intended use
The sera –diaphragm pump is only to be deployed according
to the intended purpose stated in the product description and
the acceptance test certificate.
If the solenoid diaphragm pump is to be used for other applica-
tions, then the suitability of the pump for the new operating
conditions must be discussed with sera beforehand!
Criteria for the proper use of the solenoid diaphragm pump
are:
Observe characteristics of the pumped medium (please
see safety- and product data sheet of the pumped medi-
um used –the safety data sheet is to be provided by the
supplier / owner of the pumped medium)
Resistance of the materials which come into contact with
the pumped medium
Operating conditions at the place of installation
Pressure and temperature of the pumped medium
Voltage supply
3.11 Personal protection for maintenance and
service
In order to avoid risks to health, the provisions of the German
Ordinance on Hazardous Substances (GefStoffV) (§14 Safety
Data Shee) and relevant national safety regulations for the
pumped medium must strictly be adhered to.
In case of an incident pay attention to the following leaking
media:
fluids
vapours
noise emissions (sound level)
Emissions are to be monitored by corresponding monitoring
systems.
CAUTION !
Wear protective clothing, gloves, and a face protecting
and breathing mask.
CAUTION !
Personal protective equipment must be provided by the
owner!

Solenoid diaphragm pump
Series R/RS 204.1
Operating Instructions
TA
416
Rev.
11
en
04/2013
Subject to technical modifications!
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7
4 Transport and intermediate storage
4.1 General
Before shipment sera - products are checked for proper condi-
tion and functioning.
The customer has to check the product for transport damage
immediately aftr receipt. Any damage detected is to be report-
ed immediately to the carrier and the supplier.
CAUTION !
The packaging material must be disposed of
appropriately!
4.2 Storage
An undamaged packaging protects the unit during subsequent
storage and should only be opened when the solenoid dia-
phragm pump is installed.
Proper storage increases the service life of the solenoid dia-
phragm pump and comprises prevention of negative influences
such as heat, humidity, dust, chemicals etc.
The following storage instructions are to be observed:
Storage place: cool, dry, dust-free and slightly ventilated
Storage temperatures between +2°C and +40°C
Relative air humidity not more than 50%.
The maximum storage time for the standard system is 12
months.
If these values are exceeded, products should be sealed in foil
and protected from condensation water with a suitable desic-
cant.
Do not store solvents, fuels, lubricants, chemicals, acids, disin-
fectants and similar in the storage room.

Solenoid diaphragm pump
Series R/RS 204.1
Operating Instructions
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5 Components of the solenoid diaphragm pump
5.1 R 204.1
The solenoid diaphragm pump may be composed of the following (main) components:
Motor housing
with stroke magnet
Electronics with operating panel
Assembly pump
Pump body
Valves
Electronics with operating panel
Pressure valve
Pump body
(PVC- design)
Assembly pump
Motor housing with stroke magnet
Suction valve
Pump body
(FRP- design)
Fig. 02 Overview of the components R 204.1

Solenoid diaphragm pump
Series R/RS 204.1
Operating Instructions
TA
416
Rev.
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en
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5.2 RS 204.1
The self ventilating solenoid diaphragm pump may be composed of the following (main) components:
Motor housing
with stroke magnet
Electronics with operating panel
Assembly pump
Pump body
Valves
Vent valve
Vent valve
Electronics with operating panel
Pressure valve
Pump body
(PVC, PP, PVDF- design)
Assembly pump
Motor housing with stroke magnet
Suction valve
Pump body
(FRP- design)
Fig. 03 Overview of the components RS 204.1

Solenoid diaphragm pump
Series R/RS 204.1
Operating Instructions
10
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6 Technical specifications
6.1 Dimensions R 204.1
Fig. 04 Dimensions R204.1
Disign: PP- and. PVDF-FRP (...-1,2e until ...-14e)
Disign: PVC, 1.4571 (and PP- and. PVDF-FRP ...-25e until ...-35e)
View X

Solenoid diaphragm pump
Series R/RS 204.1
Operating Instructions
TA
416
Rev.
11
en
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Table 02
Dimensions
All dimensions in mm!
Solenoid diaphragm pump
R 204.1 –0,4 e
R 204.1 –1,2 e
R 204.1 –2,4 e
R 204.1 –6,0 e
R 204.1 –7,0 e
R 204.1 –10 e
R 204.1 –14 e
R 204.1 –25 e
R 204.1 –30 e
R 204.1 –35 e
Valves
S1
Double valve
PP-FRP, PVDF-FRP
---
80
80
80
80
80
80
---
---
---
S2
Double valve
PP-FRP, PVDF-FRP
---
---
---
---
---
---
---
75
75
75
Single valve
PVC
---
---
---
---
---
---
---
78
78
78
Chamber valve
PVC, 1.4571
---
70
70
70
70
70
70
---
---
---
Double valve
1.4571/1.4581
---
---
---
---
---
---
---
76
76
76
Double valve
PP, PVC, PVDF
65
---
---
---
---
---
---
---
---
---
D1
Double valve
PP-FRP, PVDF-FRP
---
80
80
80
80
80
80
---
---
---
D2
Double valve
PP-FRP, PVDF-FRP
---
---
---
---
---
---
---
75
75
75
Single valve
PVC
---
---
---
---
---
---
---
85
85
85
Chamber valve
PVC, 1.4571
---
70
70
70
70
70
70
---
---
---
Double valve
1.4571/1.4581
---
---
---
---
---
---
---
76
76
76
Double valve
PP, PVC, PVDF
65
---
---
---
---
---
---
---
---
---
G
Connection thread
Suction/pressure valve
G ¾
G ¾
G ¾
G ¾
G ¾
G ¾
G ¾
G ¾
G ¾
G ¾
Assembly
pump
A
Assembly pump
24
24
24
24
24
24
24
26
26
26
Pump body (PB)
B1
Centre of valve thread
(FRP-design)
---
17
17
17
17
17
17
15
15
15
B2
Centre of valve thread
17
17
17
17
17
17
17
18
18
18
C1
PB (FRP-design)
---
75
75
75
75
75
75
---
---
---
C2
PB (FRP-design)
---
---
---
---
---
---
---
33
33
33
Pump body
43
43
43
43
43
43
43
41
41
41
Stroke
mechanism
a.o. Dimensions for fas-
tening of the pump
see Fig. 04

Solenoid diaphragm pump
Series R/RS 204.1
Operating Instructions
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6.2 Dimensions RS 204.1
Fig. 05 Dimensions RS 204.1
Disign: PP- and. PVDF-FRP (...-6,0e until ...-14e)
Disign: PVC, PP, PVDF (and PP- and. PVDF-FRP ...-25e until ...-35e)
View X

Solenoid diaphragm pump
Series R/RS 204.1
Operating Instructions
TA
416
Rev.
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en
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Table 03
Dimensions
All dimensions in mm!
Solenoid diaphragm pump
RS 204.1 –0,4 e
RS 204.1 –1,2 e
RS 204.1 –2,4 e
RS 204.1 –6,0 e
RS 204.1 –7,0 e
RS 204.1 –10 e
RS 204.1 –14 e
RS 204.1 –25 e
RS 204.1 –30 e
RS 204.1 –35 e
Valves
S1
Double valve
PP-FRP, PVDF-FRP
---
---
---
80
80
80
80
---
---
---
S2
Double valve
PP-FRP, PVDF-FRP
---
---
---
---
---
---
---
75
75
75
Chamber valve
PVC, PP, PVDF
---
70
70
70
70
70
70
---
---
---
Single valve
PVC
---
---
---
---
---
---
---
78
78
78
Double valve
PP, PVC, PVDF
65
---
---
---
---
---
---
---
---
---
D1
Double valve
PP-FRP, PVDF-FRP
with vent valve
---
---
---
168
168
168
168
---
---
---
D2
Double valve
PP-FRP, PVDF-FRP
with vent valve
---
---
---
---
---
---
---
163
163
163
Chamber valve
PVC, PP, PVDF
with vent valve
---
158
158
158
158
158
158
---
---
---
Single valve
PVC
with vent valve
---
---
---
---
---
---
---
173
173
173
Double valve
PP, PVC, PVDF
with vent valve
153
---
---
---
---
---
---
---
---
---
G
Connection thread
Suction/pressure valve
G ¾
G ¾
G ¾
G ¾
G ¾
G ¾
G ¾
G ¾
G ¾
G ¾
Assembly
pump
A
Assembly pump
24
24
24
24
24
24
24
26
26
26
Pump body (PB)
B1
Centre of valve thread
(FRP-design)
---
---
---
17
17
17
17
15
15
15
B2
Centre of valve thread
17
17
17
17
17
17
17
18
18
18
C1
PB (FRP-design)
---
---
---
75
75
75
75
---
---
---
C2
PB (FRP-design)
---
---
---
---
---
---
---
33
33
33
PB (PVC, PP, PVDF-
design)
43
43
43
43
43
43
43
41
41
41
Stroke
mechanism
a.o. Dimensions for fas-
tening of the pump
see Fig. 05

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Series R/RS 204.1
Operating Instructions
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6.3 Technical data
Type
Pump data
Diaphragm diameter
Nominal delivery rate adjustable by stroke length ad- justment and stroke frequency adjustment
Maximum permis- sible pressure in the pump outlet
Minimum / maxi- mum permissible pressure in the pump inlet
Maximum suction height 1)
Inlet / outlet nominal width
Nominal stroke frequency
Maximum stroke length
QN
l/h
QN
ml/Hub
p2
max.
p1
min. / max.
WC
DN
min -1
h100
mm
50 / 60 Hz
bar
bar
m
mm
50 / 60 Hz
mm
R 204.1-0,4 e
26
0-0,4 2)
0-0,04
10
-0,2/0
2
4
150
1,5
R 204.1-1,2 e
26
0-1,2 2)
0-0,13
10
-0,3/0
3
5
150
1,5
R 204.1-2,4 e
30
0-2,4 2)
0-0,27
10
-0,3/0
3
5
150
1,5
R 204.1-6,0 e
42
0-6,0 3)
0-0,67
6
-0,3/0
3
5
150
1,5
R 204.1-7,0 e
42
0-7,0 3)
0-0,78
10
-0,3/0
3
5
150
1,5
R 204.1-10 e
52
0-10 3)
0-1,11
6
-0,3/0
3
5
150
1,5
R 204.1-14 e
52
0-14 3)
0-1,56
3
-0,3/0
3
5
150
1,5
R 204.1-25 e
74
0-25 3)
0-2,78
3
-0,3/0
3
10
150
1,5
R 204.1-30 e
74
0-30 3)
0-3,33
2,5
-0,3/0
3
10
150
1,5
R 204.1-35 e
74
0-35 3)
0-3,89
1,5
-0,3/0
3
10
150
1,5
Table. 04 Technical data / Pump data
1) Achievable height with media similar to water
2) Linear dosing range at a stroke length between 30% and 100%
3) Linear dosing range at a stroke length between 20% and 100%
Type
Pump data
Diaphragm diameter
Nominal delivery rate adjustable by stroke length ad- justment and stroke frequency adjust- ment
Maximum permissi- ble pressure in the pump outlet
Minimum / maxi- mum permissible pressure in the pump inlet
Maximum suction height 1)
Inlet nominal width
Outlet nominal width
Nominal stroke frequency
Maximum stroke length
Usable stroke length range with self-ventilation
QN
l/h
QN
ml/stroke
p2
max.
p1
min. / max.
WC
DN
DN
min -1
h100
hs
mm
50 / 60 Hz
bar
bar
m
mm
mm
50 / 60 Hz
mm
%
RS 204.1-0,4 e
26
0-0,4 2)
0-0,04
10
-0,1/0
1
4
4
150
1,5
80-100
RS 204.1-1,2 e
26
0-1,2 2)
0-0,13
10
-0,15/0
1,5
4
5
150
1,5
80-100
RS 204.1-2,4 e
30
0-2,4 2)
0-0,27
10
-0,2/0
2
4
5
150
1,5
80-100
RS 204.1-6,0 e
42
0-6,0 3)
0-0,67
6
-0,3/0
3
4
5
150
1,5
70-100
RS 204.1-7,0 e
42
0-7,0 3)
0-0,78
10
-0,3/0
3
4
5
150
1,5
70-100
RS 204.1-10 e
52
0-10 3)
0-1,11
6
-0,3/0
3
4
5
150
1,5
60-100
RS 204.1-14 e
52
0-14 3)
0-1,56
3
-0,3/0
3
4
5
150
1,5
60-100
RS 204.1-25 e
74
0-25 3)
0-2,78
3
-0,3/0
3
5
10
150
1,5
60-100
RS 204.1-30 e
74
0-30 3)
0-3,33
2,5
-0,3/0
3
5
10
150
1,5
60-100
RS 204.1-35 e
74
0-35 3)
0-3,89
1,5
-0,3/0
3
5
10
150
1,5
60-100
Table 05 Technical data / Pump data
1) Achievable height with media similar to water
2) Linear dosing range at a stroke length between 30% and 100%
3) Linear dosing range at a stroke length between 20% and 100%
3) With the first suctioning, the stroke length has to be set to 100 % and the vent valve has to be opened

Solenoid diaphragm pump
Series R/RS 204.1
Operating Instructions
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Type
Drive
Weight 1)
Type
Drive
Weight 1)
Solenoid diameter
Middle power draw
Nominal voltage
Frequency
Solenoid diameter
Middle power draw
Nominal voltage 2)
Frequency
mm
W
V
Hz
approx.
mm
W
V
Hz
approx.
kg
kg
R 204.1-0,4 e
65
20
100-240
50/60
2,6
RS 204.1-0,4 e
65
20
190-240
50/60
3,0
R 204.1-1,2 e
65
20
100-240
50/60
3,1
RS 204.1-1,2 e
65
20
190-240
50/60
3,1
R 204.1-2,4 e
75
26
100-240
50/60
4,1
RS 204.1-2,4 e
75
26
190-240
50/60
4,1
R 204.1-6,0 e
75
26
100-240
50/60
4,1
RS 204.1-6,0 e
75
26
190-240
50/60
4,1
R 204.1-7,0 e
90
33
100-240
50/60
4,8
RS 204.1-7,0 e
90
33
190-240
50/60
4,8
R 204.1-10 e
90
33
100-240
50/60
4,8
RS 204.1-10 e
90
33
190-240
50/60
4,8
R 204.1-14 e
75
26
100-240
50/60
4,1
RS 204.1-14 e
75
26
190-240
50/60
4,1
R 204.1-25 e
90
33
100-240
50/60
5,1
RS 204.1-25 e
90
33
190-240
50/60
5,1
R 204.1-30 e
90
33
100-240
50/60
5,1
RS 204.1-30 e
90
33
190-240
50/60
5,1
R 204.1-35 e
90
33
100-240
50/60
5,1
RS 204.1-35 e
90
33
190-240
50/60
5,1
Table. 06 Technical data / drive Table. 07 Technical data / drive
1) standard-design 1) standard-design
2) other available operating voltages: 100...120V, 50 or 60 Hz
Additional data for electronics
Type
Electronics data
Inlet voltage / Control input
Current consumption during stroke (230 V)
Recommended fuse
Min. contact signal time Min. distance betrween pusles
Analogue input resistance
Digital Output
Protection category
Thermal class
R/RS 204.1-...
5…30 V DC
max. 1,0 A
C2A
Circuit break-
er
55 ms
100 Ω
PNP,
internal supply
max. 15V DC, 50 mA
external supply
max. 30V DC, 350 mA
IP 65
F
Table. 08 Electronics data

Solenoid diaphragm pump
Series R/RS 204.1
Operating Instructions
16
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6.4 Usable stroke length range with self-ventilation
Pump type: RS 204.1-1,2e
Fig. 06
The dosing pump sucks independently between diagram value and 100 % of the stroke length.
The diagram describes the operating range of the stroke length of pump type RS.
Pump type: RS 204.1-2,4e
Fig. 07
The dosing pump sucks independently between diagram value and 100 % of the stroke length.
The diagram describes the operating range of the stroke length of pump type RS.
Usable stroke length range with self-ventilation
60
80
60
80
0
10
20
30
40
50
60
70
80
90
1 1,5
Suction height [m WS]
Stroke length [%]
Usable stroke length range with self-ventilation
40
60
60
0
10
20
30
40
50
60
70
1 1,5 2
Suction height [m WS]
Stroke length [%]

Solenoid diaphragm pump
Series R/RS 204.1
Operating Instructions
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Pump type: RS 204.1-6,0e
RS 204.1-7,0e
RS 204.1-10e
RS 204.1-14e
RS 204.1-25e
RS 204.1-30e
RS 204.1-35e
RS 204.1-6,0e
RS 204.1-7,0e
RS 204.1-10e
RS 204.1-14e
RS 204.1-25e
RS 204.1-30e
RS 204.1-35e
Fig. 08
The dosing pump sucks independently between diagram value and 100 % of the stroke length.
The diagram describes the operating range of the stroke length of pump type RS.
CAUTION!
Note the usable stroke length acc. to the preceding diagrams.
Priming problems may arise if these values are fallen below.
Usable stroke length range with self-ventilation
40
50
60
70
70
40
50
60
70
70
40
50
60
60
70
40
50
60
60
70
20
30
30
40
60
0
10
20
30
40
50
60
70
80
11,5 22,5 3
Suction height [m WS]
Strokelength [%]

Solenoid diaphragm pump
Series R/RS 204.1
Operating Instructions
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7 Functional description
7.1 General
sera solenoid diaphragm pumps R/RS 204.1 are self-priming
and run-dry safe oscillating displacement pumps that are char-
acterised by high tightness of the dosing head.
The flow capacity of the solenoid diaphragm pump R 204.1
can be controlled manually via the stroke length adjustment
0...100% (RS 204.1 see chapter 6.4 “Usable stroke length
range with self-ventilation”) and/or stroke frequency adjustment
0...100%.
Solenoid diaphragm pumps consist of the following (main)
components:
Motor housing with stroke magnet
Electronics with connection / operating panel
Assembly pump
Pump body
Manual vent valve
(only by R 204.1 - 1,2e... - 14e, RS 204.1-6,0e… - 14e
in FRP-design)
Suction and pressure valve
Electronics with
operating panel
Motor housing
with stroke magnet
Pressure valve
Vent valve
Assembly pump
Suction valve
Pump body
Fig. 09 (Components of solenoid diaphragm pump)
7.2 Components of the solenoid diaphragm
pump R/RS 204.1
7.2.1 Assembly pump / Motor housing
Function
The liquid is conveyed by a deformable drive diaphragm. This
drive diaphragm is connected to the drive magnet via a con-
necting rod which results in a deflection of the suction and
pressure stroke (see Fig. 10).
Connecting rod Drive magnet
Pressure valve
Pump
body
Suction valve
Drive diaphragm
Motor housing
Fig.10 Functional principle

Solenoid diaphragm pump
Series R/RS 204.1
Operating Instructions
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7.2.2 Pump body
Depending on the applied backpressure, movements of the
plastic pump body in elastic materials are possible.
This does not affect the pumps’s service life or operational re-
liability.
7.2.3 Manual vent valve (only FRP-
execution R 204.1-1,2e - ...-14e, RS
204.1-6,0 - …-14e)
Function
The vent valve is used to release the manual pressure in the
pump body during commissioning. Open vent valve when
pump primes first time.
When vent valve is opened gas including medium escapes into
the feedback line. The vent valve must be closed again as
soon as only medium without gas constituent escapes. The
pump now feeds the medium into the pressure line.
Open again for another ventilation. The vent valve consists of
a vent screw with integrated hose nozzle, which must be fitted
with a hose (inside diameter 6 mm) as feedback line (see Fig.
11). The leaking medium incl. the gas admixtures must be dis-
posed off properly
Vent screw
Integrated hose nozzle
Hose
Pump body
Fig. 11 Vent valve
The vent screw is inserted during normal operation.
CAUTION!
Open vent screw with great caution and perform max. 1
turn. Take care that the tightness of the thread is still
guaranteed.
ACHTUNG !
The vent screw must always be closed during the driving
process.
7.2.4 Electronics (with control panel)
The electronics enable, among others, the proportional dosing
via analog signals 4 …20mA.
The three LEDs serve for indicating warning signals, errors
and the current status of the dosing pump (see Fig. 12).
An indicator “empty” along with pre-alarm and dry run indica-
tors is installed as standard.
LED- display
Fig. 12 Electronics

Solenoid diaphragm pump
Series R/RS 204.1
Operating Instructions
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7.2.5 Suction / pressure valve
The pump valves are always ball valves which can only func-
tion properly when they are installed in a vertical position. The
condition of the valves is decisive for the operational behaviour
of the pump. The valves should only be exchanged completely.
Pay attention to the flow direction when installing the valves
(see Fig. 13).
CAUTION !
Pressure valve above, suction valve below!
Flow
direction
Fig. 13 Double valves, for evample. PVDF-FRP
7.2.6 Automatic ventilation device (RS-
design)
The self-venting controlled magnetic diaphragm pumps of the
series RS 204.1 are equipped with a vent valve which is in-
stalled on the pump pressure nozzle and which cannot be ret-
rofitted.
The pump vents the dosing head of the pump and the suction
line, either externally or manually controlled or automatically at
a predefined interval.
The vent valve consists of a combination of a check valve,
which should prevent a back-flow of the medium, and a sole-
noid valve (see Fig. 14). When the controlled solenoid valve
opens the spring-loaded rotor with attached seal is lifted from
the valve seat and pressure is relieved from the space be-
tween the pump valve and the integrated check valve.
Thus pump and the pipes on the suction side can be vented
without pressure.
Please note that the required stroke volume is covered by the
usable stroke length range.
CAUTION !
Always install the pump above the suction tank and lay
the return pipe with descending gradient to the suction
tank!
Vent valve Solenoid valve
Check
valve
Hose
nozzle
Return line
Fig. 14 Vent valve, controllable