PKP DP01 User manual

Instruction Manual
DP01
Paddle-Type Flow Switch
PKP Prozessmesstechnik GmbH
Borsigstraße 24
D-65205 Wiesbaden- ordenstadt
Tel.: ++49-(0)6122-7055-0
Fax: ++49-(0)6122-7055-50
Email: [e-mail]

Table of Contents
Safety Information..................................................................................................................2
General Installation Instructions............................................................................................3
Flow Switch for Direct Installation (Types DP01.4, DP01.5 and DP01.6).............................3
Flow Switch with Pipe Section (Types DP01.1, DP01.2 and DP01.3)..................................4
Type of Contact......................................................................................................................4
Adjusting the Switching Unit (Figs. 14 to 16).........................................................................5
Electrical Connection.............................................................................................................6
Technical Data.......................................................................................................................7
Installation Instructions for Paddle-Type Flow Switch Series DP01.3..................................8
Safety Information
eneral Instructions
To ensure safe operation, the device should only be operated according to the specifica -
tions in the instruction manual. The requisite Health & Safety regulations for a given
application must also be observed. This statement also applies to the use of accessories.
Every person who is commissioned with the initiation or operation of this device must have
read and understood the operating instructions and in particular the safety instructions!
The liability of the manufacturer expires in the event of damage due to improper use, non-
observance of this operating manual, use of insufficiently qualified personnel and unau-
thorized modification of the device.
Proper Usage
The paddle-type flow switch of the DP01 series are used for flow monitoring of low-viscos-
ity liquids. All other usage is regarded as being improper and outside the scope of the
device.
In particular, applications in which shock loads occur (for example, pulsed operation)
should be discussed and checked in advance with our technical staff.
The series DP01 flow switch devices should not be deployed as the sole agents to prevent
dangerous conditions occurring in plant or machinery. Machinery and plant need to be
designed in such a manner that faulty conditions and malfunctions do not arise that could
pose a safety risk for operators.
Dangerous substances
For dangerous media such as e.g. Oxygen, Acetylene, flammable or toxic substances as
well as refrigeration systems, compressors, etc. must comply with the relevant regulations
beyond the general rules.
DP01 Instruction manual 07/2021 page 2

Qualified Personnel
The DP01 devices may only be installed by trained, qualified personnel who are able to
mount the devices correctly. Qualified personnel are persons, who are familiar with
assembling, installation, placing in service and operating these devices and who are suit-
ably trained and qualified.
Inward Monitoring
Please check directly after delivery the device for any transport damages and deficiencies.
Additional with reference to the accompanying delivery note the number of parts must be
checked.
Claims for replacement or goods which relate to transport damage can only be considered
valid if the delivery company is notified without delay.
eneral Installation Instructions
1. Install the flow control switches, if possible, in horizontal
pipes.
2. The switches must be installed vertically, deviation max.
45° (Fig. 1).
3. The brass and stainless steel union nut should be
tightened to a maximum torque of 30 m.
4. The knurled plastic union nut (PA 6.6) should be tightened
by hand or with a suitable tool. Max. tightening torque 8
m.
5. There is an arrow on the top of the switch head which
must run parallel to the pipe axis and point in the direction of flow (Fig. 2)
6. If necessary, the piping system in which the control switch is to be installed must be
cleaned before installing the switch and freed of magnetic particles such as welding
residues.
7. The calming distance before and after the control switch should be at least 5 x D .
Flow Switch for Direct Installation (Types DP01.4, DP01.5 and
DP01.6)
1. Types DP01.4 and DP01.5 are suitable for installation in sockets with female G ½
thread.
2. Type DP01.6 is supplied with brass soldering nipple or 1.4571 welding nipple
including O-ring seal.
3. Type DP01.6 may only be installed vertically in horizontal pipes.
4. The control switch must be installed so that the paddle does not touch the pipe
wall.
5. It is essential to observe the installation height dimension.
DP01 Instruction manual 07/2021 page 3

Flow Switch with Pipe Section (Types DP01.1, DP01.2 and
DP01.3)
1. The pipe section of the flow switch is installed in existing pipes like a valve.
2. The switching point adjustment range ins indicated on the nameplate.
3. The sealing of the brass or stainless steel pipe sections should be achieved with
threaded seals (Teflon tape, surface coating, etc.) or with suitable sealing rings
which must seal at the end face of the pipe.
4. For flow control switches, which are optionally equipped with a copper pipe sec-
tions, installation in the pipeline is carried out by means of a soldered connection.
During soldering, the upper part of the flow switch with the O-ring must be removed
to avoid overheating.
Type of Contact
The switching unit of the control switch allows two different contact types:
1. Working contact ( /O) – red arrow on the switching unit
2. Break contact ( /C) – white arrow on the switching unit
The table below explains the two types of contact:
Type of contact Flow Contact function
Working contact (red arrow) rising
falling
/O
/C
Break contact (white arrow) rising
falling
/C
/O
Unless otherwise ordered by the customer, the switching unit is factory set as a /O, i.e.
the reed contact opens when the value falls below the set switching point.
DP01 Instruction manual 07/2021 page 4

Adjusting the Switching Unit (Figs. 14 to 16)
•To adjust the switching unit, the cover of the switch head must be opened (Fig. 14).
•Then loosen the locking screw
(hexagon socket SW 2.5 for brass and
stainless steel version or cross slot for
plastic version) and move the switching
unit so far that the red arrow at the
input of the guide of the switching unit
is visible at the desired normally open
contact (Fig. 15) or the white arrow at
the input of the normally closed contact
(Fig. 16).
•You can fine tune the switching point to
the length of the arrow: moving to the
end of the arrow means that the switch-
ing point is at a higher level. Move to
arrowhead means: Switching point is at
lower level.
•ow carefully tighten the locking screw
again.
•After setting the switching point, we
recommend securing the locking screw
with lacquer or screw locking lacquer.
•Close the cover again until it clicks into
place.
DP01 Instruction manual 07/2021 page 5

Electrical Connection
Angled plug connector DIN 43650, type A / ISO 4400
Attention: Danger to life due to electrical voltage!
Disconnect the electrical system from the power supply before connecting the strands of
the connecting cable.
•Loosen the central screw (pos. 6) M3x35 and remove the cable socket (pos. 2)
from the appliance plug (pos. 1) (Fig. 5). Remove the central screw (pos. 6) from
the connector (pos. 2).
•Open the inner part (pos. 8) of the connector (pos. 2) with a screwdriver or a similar
tool (fig. 6).
•Loosen the cable gland (pos. 5) M16x1,5 (Fig. 7).
•Insert the connecting cable through the screw connection (pos. 5), the pressure ring
(pos. 10) and the rubber insert (pos. 9) into the cable socket (Fig. 8).
•Connect the cable as shown in the connection diagram (Fig. 11).
•Press the inner part (pos. 8) into the cable socket until it clicks into place (pos. 2).
•Insert the central screw (Pos. 6) into the cable socket (pos. 2) and tighten the cable
gland (pos. 5) (Fig. 9).
•Plug the cable socket (pos. 2) into the appliance plug (pos. 3) and tighten ten cent -
ral screw (pos. 6) (Fig. 10).
•To guarantee protection class IP 65 according to E 60529, the connection cable
used must have a sheath diameter of 4,5 to 10 mm.
•You must also ensure that all seals on the device plug (pos. 3, 4 and 9) are inser-
ted correctly.
Reed contact
Connected to PI 1 und PI 2
DP01 Instruction manual 07/2021 page 6

Technical Data
Materials of the wetted parts:
Component designation DP01.1.1
DP01.3.1
DP01.4.1
DP01. .1
DP01.6.1
DP01.1.2
DP01.4.2
DP01. .2
DP01.6.2
DP01.2.3
Upper part brass 2.0401 st. steel 1.4571 PPO ( oryl GF 3)
Screw-in spigot brass 2.0401 st. steel 1.4571 st. steel 1.4571
Rocker rod system brass 2.0401 st. steel 1.4571 PPO ( oryl GF 3)
Axle pin st. steel 1.4571 st. steel 1.4571 st. steel 1.4571
Sockets PVDF PVDF PPO ( oryl GF 3)
Magnet hard ferrite hard ferrite hard ferrite
O-Ring BR BR BR
V-Seal -------------------------- ------------------------ EPDM
All other relevant technical data (e.g. type designation, pressure rating, max. temperature,
electrical connection values and switching point adjustment ranges) can be found in the
technical appendix.
DP01 Instruction manual 07/2021 page 7

Installation Instructions for Paddle-Type Flow Switch Series
DP01.3..
Monitoring and measuring devices work predominantly on an electromechanical basis. For
this reason, the general installation and operating instructions refer to the mechanical and
electrical operating data of the individual devices or device groups.
1. eneral
Before installation, check whether the material of the paddle flow switch is suitable for the
medium to be measured!
The paddle-type flow switch of the series DP01.3.. are special devices with integrated
microswitch 250 V / 5 A, AC (mac.).
The version is available with male or female thread.
The device emits a signal when the value falls below the set switching point.
The terminal assignment in the plug is shown on the nameplate. The electrical cable can
be connected to the screw terminals without soldering.
2. Installation of the pipeline
The device is installed in the pipeline with Teflon tape to seal it. During installation, make
sure that the flow direction is correct, indicated by the arrow on the switch head. The
pipeline must be cleaned beforehead from coarse contamination.
The calming distance before and after the device must be at least 5xD.
If the switching point is not set, the device must be set to the desired switch-off point by
shifting the microswitch.
Attention: When installing the device, make sure that the paddle system in neither
damaged nor twisted.
3. Adjustment of the switching point
There is a cover on the switch head which is pushed upwards. The switching point can be
adjusted with the screw underneath.
The switching point range is indicated on the nameplate.
4. Functional description
The device is equipped with a changeover contact. Terminals 1 and 2 are closed at cur -
rent. Switchover from 2 to 3 takes place when the switching point is undercut.
DP01 Instruction manual 07/2021 page 8

Flow Measurement and Monitoring
DP01
Paddle-Type Flow Switch
•for liquids
•long-term stable switching points by
counter magnet technology
•with or without T-fitting
for piping from 1 4“ to 6“
•design in brass, stainless steel
and with PVC T-fitting
•upper part detachably connected with T-piece,
thus cleaning and exchange fast
possible
•switching range: 2,1...83 l min water
•available with reed contact
or microswitch
•instant response
•switching function depends only
on flow, not on pressure and
temperature of fluid
Description:
The model DP01 flow switches operate according to the pad-
dle principle. The flowing liquid pushes against the surface
area of a paddle mounted at the end of a pivoting arm.
The dynamic pressure against the plate deflects the arm.
This motion causes a permanent magnet attached on the
other end of the arm to switch an adjustable reed contact
located outside the liquid being monitored.
y moving the reed contact, different switching points can be
set.
Two repulsive magnets generate the restoring force. This
results in better long-term stability and higher tolerance to
pressure peaks.
Typical application:
The DP01 paddle flow switch is suitable for monitoring the
switching point of low-viscosity liquids.
Typical fields of application:
– Cooling systems
– Heating systems
– Welding systems
– Laser cooling systems
The paddle principle makes the device relative dirt resistant.
PKP Prozessmesstechnik GmbH
orsigstr. 24 • D-65205 Wiesbaden
S [phone] • T [phone]
[email protected] • www.pkp.de
20181102

Models and switching ranges
(all switching ranges refer to water, 20 °C,
horizontal pipeline, tolerance +/- 15 %)
DP01.1.: with brass- or stainless steel T-fittin and
reed contact
Nominal
size
DN
Connection Switch on
at
[l/min] H2O
Switch off
at
[l/min] H2O
Max. flow
rate [l/min]
H2O
8 G 1/4 2,1...2,7 1,8...2,4 45
10 G 3/8 2,5...3,2 2,2...2,9 60
15 G 1/2 3,4...4,2 3,0...3,8 67
20 G 3/4 7,0...9,1 6,4...8,2 120
25 G 1 13,5...17 12...15,5 195
32 G 1 1/4 15,5...20,5 14,5...19 240
40 G 1 1/2 26,5...34,5 15,5...32,5 400
50 G 2 39,5...51,0 39...50 400
DP01.2.: with PVC- T-fittin and reed contact
Nominal
size
DN
Connection Switch on
at
[l/min] H2O
Switch off
at
[l/min] H2O
Max. flow
rate [l/min]
H2O
15 DN 15 5,1...6,9 4,9...6,5 50
20 DN 20 9,4...12,3 9,1...11,9 100
25 DN 25 10,7...15,2 10,4...14,8 100
32 DN 32 17,0...22,6 16,8...22,5 150
40 DN 40 21,8...30,1 21,6...29,9 200
50 DN 50 29,0...40,0 28,6...39,9 260
DP01.3.: with brass-T-fittin and microswitch
Nominal
size
DN
Connection Switch off
at [l/min] H2O
decreasin
Max. flow
rate [m³/h]
H2O
10 G 3/8 female 4,0...5,0 10
15 G 1/2 female 5,0...6,0 20
15 G 1/2 male 4,0...5,0 10
20 G 3/4 female 8,0...10,0 40
25 G 1 female 17,0...20,0 60
32 G 1 1/4 female 24,0...28,0 80
40 G 1 1/2 female 43,0...50,0 100
50 G 2 female 69,0...83,0 150
DP01.4.: without T-fittin , screw-in thread 1/2“,
installation len th 51 mm, reed contact
Can be
used in
nominal
size
Connection
screw-in
spi ots*
Switch on
at
[m³/h] H2O
Switch off
at
[m³/h] H2O
Max. flow
rate [m³/h]
H2O
DN 50 G ½ male 1,9...2,7 1,8...2,6 30
DN 80 G ½ male 5,0...8,0 4,9...7,9 80
DN 100 G ½ male 8,3...12,5 8,2...12,4 150
DN 150 G ½ male 17,5...25,0 17,4...24,9 200
*Installation in welding socket acc. to EN 10241, 15 mm long
Order Code:
Order number: DP01.
Paddle type flow switch
1. 2. 25. 0. 0.
Version:
1 = with T-fitting, brass or st. steel (reed contact)
2 = with PVC-T-fitting, glue fittin (reed contact)
3 = with brass-T-fitting (micro switch)
4 = with 1/2" screw-in thread, (reed contact)
brass or st. steel, installation length 51 mm
Material:
1 = brass (not DP01.2.)
2 = stainless steel (not DP01.2., DP01.3.)
3 = PVC (DP01.2. only)
Nominal size:
DP01.1. only
08 = 1/4"
DP01.1. and DP01.3.
10 = 3/8"
DP01.3. only
14 = 1/2" male thread
DP01.1., DP01.2., DP01.3.
15 = 1/2"
20 = 3/4"
25 = 1"
32 = 1 1/4"
40 = 1 1/2"
50 = 2"
DP01.4.
00 = all nominal sizes from 2" to 6" acc. to table
Preset switchin point:
0 = without
1 = factory set switching point (increasing)
2 = factory set switching point (decreasing)
Options:
0 = without
1 = please specify in plain text
Technical Data:
Max. pressure: brass and st. st.: PN 25
PVC: PN 10 at 0...20 °C
PN 2,5 at 0...60 °C
Temperature ran es:
Media: brass and st. st.: -20...+110 °C
PVC 60 °C
Environment: brass and st. st.: -25...+80 °C
-20...+70 °C at microsw.
PVC: 0...60 °C
Device plu : device plug DIN EN 175301-803-A
incl. connector
Reed contact: contact function: N/C / N/O
switching capacity: 230 VAC / 48 VDC,
1 A, 20 W / 26 VA
Microswitch: contact function: changeover contact
switching capacity: 250 VA, 5 A, 1250 VA
switching hysteresis: 10...30 %
Protection cl.: IP 65
class II, EN 60730-1
PKP Prozessmesstechnik GmbH
orsigstr. 24 • D-65205 Wiesbaden
S [phone] • T [phone]
[email protected] • www.pkp.de
Flow