PKP DM01A User manual

Instruction Manual
DM01A
Compact magnetic inductive flowmeter
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
Functional description............................................................................................................3
Construction...........................................................................................................................3
Installation..............................................................................................................................4
Assembly................................................................................................................................5
Electrical connection..............................................................................................................6
Wirings...................................................................................................................................6
Commissioning.......................................................................................................................8
Measuring operation..............................................................................................................8
Maintenance and cleaning.....................................................................................................9
Return shipment to PKP Prozessmesstechnik......................................................................9
Pressure loss.......................................................................................................................10
Safety Information
General 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.
roper Usage
The devices of the DM01A series are used for reliable magnetic inductive flow measure -
ment of conductive liquids which do not attack the materials used. Any other use of the
device is not permitted and is outside the scope of application.
The devices of the DM01A should not be used as sole monitoring devices in order to
detect or even avoid dangerous operating states in plants and machines. The plant or
machine itself must be planned and constructed in such a way that critical conditions
which pose a danger to man and the environment are excluded from the outset.
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.
DM01A Instruction manual 07/2019 page 2

Qualified ersonnel
The DM01A 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.
Functional description
The magnetic inductive flow sensor func-
tions according to the induction principle.
A DC voltage is generated by the move-
ment of a conductor in a magnetic field.
The measuring tube of the DM01A is loc-
ated in a magnetic field (B). An electric-
ally conductive medium (V) flows
through the measuring tube. The positive
and negative charge carriers are oppos-
itely deflected.
A voltage (U) is generated at right angles
to the magnetic field, which is picked up
by the two electrodes. Thereby, the
induced voltage is proportional to the average flor velocity of the liquid.
The electronics of the DM01A converts the induced voltage into a flow-proportional fre-
quency signal.
Construction
The measuring tube with its earthing sleeves and electrodes
passes through the housing and forms the external process
connection of the DM01A. A magnetic field for the measure-
ment process is generated inside the housing, which also
contains the sensor and signal conditioning circuitry. The two
stainless steel electrodes are located in the middle of the
measuring tube between the earthing sleeves.
The DM01A does not need any moving parts to make meas-
urements. The inside of the measuring tube is completely
open, allowing the fluid to flow unhindered through the meas-
uring tube.
DM01A Instruction manual 07/2019 page 3

Installation
Before installing, check that
•the wetter materials of the device are suitable for the media being used.
•the equipment is switched off and is in a safe and de-energised state.
•the equipment is depressurised and has cooled down.
Caution!
Risk of malfunction due to external magnetic fields!
Magnetic fields close to the device can cause malfunctions and
should be avoided.
Ensure that no external magnetic fields are present at the
installation site of the DM01A
The DM01A can always be installed anywhere along the pipeline. However, straight sec-
tions of piping are preferable.
DM01A Instruction manual 07/2019 page 4

•Installation can occur in horizontal and vertical pipes. The flow sensor is only suit-
able for application in completely filled pipe systems.
•As a matter of principle magnetic inductive flow sensors are widely independent
from the flow profile. An inlet section is not absolutely necessary. To reach a most
highly accuracy of the measurement, you should use straight inlet and outlet sec -
tions according to the nominal width (D ). The inlet section has to be at least
10xD ; the outlet section 5xD in order to achieve
the specified accuracy.
•The inlet and outlet sections and the gaskets must
have the same or a slightly larger inside diameter
than the measuring tube in order to achieve the spe-
cified accuracy.
•If two or more DM01A devices are used side by side,
maintain a separation of at least 2,5 cm between
adjacent devices. If adjacent devices are too close
together, operation of both devices may be impaired
due to mutual interference.
Assembly
The DM01A is installed directly into the pipeline. The
compact design and light weight of the unit make wall-
mounting unnecessary.
IM ORTANT NOTICES:
•Only use suitable gaskets for installation.
•Observe the flow direction indicated on the
type plate.
•Observe the mounting dimensions.
1. Select an appropriate location for installation
2. To ensure the best possible measuring accur-
acy, a vertical installation position with increas-
ing flow is preferable (no collecting of dirt
deposits).
3. Install the appropriate screwed connections at
the installation location.
4. Insert the DM01A together with the gaskets
5. Screw the union nuts of the screwed connec-
tion onto the process connections of the
DM01A.
Caution! Material damage!
While tightening, counter the DM01A only by hand! If you use an
open-end or a pipe wrench, the DM01A can be damaged
•Tighten both union nuts with a maximum torque of 5 m.
DM01A Instruction manual 07/2019 page 5

Electrical connection
The electrical connection of the DM01A is made via the 4-pin plug M12x1 at the top of the
housing
CAUTIO ! Electric current!
The electrical connection should only be carried out by a fully qualified electrician.
•De-energize the electrical system before connecting the DM01A.
Connection:
•Screw the coupling socket of the connection cable to the plug of the DM01A.
•Tighten the knurled nut of the coupling socket with a maximum torque of 1 m.
Wirings
Pinout:
The pinout differs according to the chosen configuration of the device.
Possible pinout:
Pin 1: +UB
Pin 2: d. n. c. (do not connect) / Analogue U/I
Pin 3: G D
Pin 4: Frequency
Connect the connection cable according to your version and the pinout on the type plate.
Supply voltage:
DM01A Instruction manual 07/2019 page 6

DM01A with frequency output:
Push-Pull:
*1 Push-Pull switching outputs of several DM01A may not be connected in parallel.
Ensure that the maximum signal current of 25 mA is not exceeded.
Use of frequency and analogue output
Push-Pull:
Ensure that the maximum signal current of 25 mA is not exceeded.
DM01A Instruction manual 07/2019 page 7

Commissioning
Check that
•the DM01A has been installed correctly and thal all screw connections are sealed.
•the electrical wiring has been connected properly.
•the measuring system is vented by flushing.
The DM01A has no switch and cannot be switched on or off on its own. Switching on and
off is carried out by the applied supply voltage.
Switch on the supply voltage
The green LED lights up. The DM01A is ready and goes into measuring mode.
Measuring operation
In the measuring mode, the green LED flashes proportional to the measured flow.
For the human eye, the flashing is no longer visible from a frequency of ~30…40 Hz.
The green LED then seems to light up permanently.
DM01A with frequency output:
The DM01A provides according to the version a flow proportional P , P P or Push-Pull
square wave signal.
The frequency of the pulse output changes according to the flow (→ Fig.)
DM01A with analogue output:
According to the configuration of the DM01A, the analogue output provides a voltage or
current signal.
This signal is proportional to the measured flow. You will find the scaling of the analogue
output on the type plate.
DM01A Instruction manual 07/2019 page 8

Maintenance and cleaning
The DM01A is maintenance-free and cannot be repaired by the user. In case of a defect,
the device must be replaced or sent back the manufacturer for repair.
CAUTION! Material damage!
When opening the device, critical parts or components can be damge.
ever open the device and perform any repair yourself.
Cleaning:
Clean the DM01A with a dry or slightly damp lint-free cloth. Do not use sharp objects or
aggressive agents for cleaning.
Return shipment to K rozessmesstechnik
Please observe the following instructions before returning the device.
•Clean the device thoroughly. This is of extreme importance if the medium is haz -
ardous to health, i.e. caustic, toxic, carcinogenic or radioactive etc.
•Remove all residues of the media and pay special attention to sealing grooves and
slits.
•Attach a note describing the malfunction, state the application field and the chem -
ical / physical properties of the media.
•Send the device to:
P P Prozessmesstechnik GmbH
Service
Borsigstraße 24
D-65205 Wiesbaden- ordenstadt
Germany
DM01A Instruction manual 07/2019 page 9

ressure loss
Measuring range: 0MG, 0,05...2 l/min
Measuring range: 01G, 0,1...5 l/min
Measuring range: 02G, 0,25...20 l/min
DM01A Instruction manual 07/2019 page 10

Measuring range: 03G, 1...50 l/min
Measuring range: 05G, 4...200 l/min
Measuring range: 06G, 5...250 l/min
DM01A Instruction manual 07/2019 page 11

Flow Measurement and Monitoring
DM01A
Compact Magnetic
Inductive Flowmeter
•independent of viscosity, density, pressure
and temperature
•maintenance free
•practically no pressure loss
•high measuring accuracy
•measuring range span up to 1: 0
•smallest dimensions
•frequency and analogue output
•measuring ranges 0,0 ...2 l/min to ...2 0 l/min
•max. pressure: 10 bar, max. temperature: 60 °C
Description:
The electromagnetic compact flow meter DM01A works with-
out moving parts thanks to the electromagnetic measuring
principle. It is specially designed for low flow rates and tight
installation conditions. Measuring ranges from 0 05 l/min to
250 l/min are available as are process connections from 3/8”
to 1 1/4”. A push-pull frequency output is available as an out-
put signal. An analogue 4...20 mA or 0 5...10 V signal is also
available as an option.
Advantages:
•no moving parts therefore the DM01A is maintenance
and wear free.
•no components protrude into the measuring tube thus
the pressure loss is kept very small and is not larger than
with a pipeline of the same length.
•the measuring is independent of temperature viscosity
concentration and pressure under normal operating con-
ditions.
•the very wide measuring span of 1:50 makes the DM01A
universally applicable.
•foreign bodies carried along in the flow and viscous
media interspersed with solids are also unproblematic.
•due to the compact design and the favourable price the
DM01A is suitable for serial applications.
PKP Prozessmesstechnik GmbH
Borsigstr. 24 • D-65205 Wiesbaden
S [phone] • T [phone]
[email protected] • www.pkp.de
20201022

Operating principle:
Magnetic-inductive flow
measurement is based on
Faraday´s law of induc-
tion. The liquid to be mea-
sured (electrically conduc-
tive) flows perpendicular
to a magnetic field. This
induces an electrical voltage in the liquid. This voltage is picked
up by two electrodes inserted in the measuring tube and further
processed by the downstream electronics. The level of the
voltage is proportional to the flow velocity.
Measuring Ranges and Dimensions:
Code Meas.-
range
[ /min]
± 0,7 % of
m.V,
± 0,3 % of
FS*
from
[ /min]
Max. f ow
[ /min]
Dimension
L1, L2, H, B
[mm]
D
[mm]
0M 0 05...2 0 1 2 5 85 59 89 36 3
01 0 1...5 0 25 6 85 59 89 36 6
02 0 25...20 1 25 85 59 89 36 8
03 1...50 2 5 60 90 59 89 36 14
05 4...200 5 240 90 59 89 36 18
06 5...250 12 5 300 122 65 120 60 25
Meas.-
range
[ /min]
Connection
G or NPT
Inner-Ø
[mm]
Nomina
size
K-Factor
pu ses/
K-Factor
pu ses/
ga on
0 05...2 3/8“ male 3 DN 3 10000 30000
0 1...5 1/2“ male 6 DN 6 4000 15000
0 25...20 1/2“ male 8 DN 8 1000 3000
1...50 3/4“ male 14 DN 15 400 1500
4...200 1“ male 18 DN 20 200 750
5...250 1 1/4“ male 25 DN 25 80 300
Design measuring range 0M...05 (G 3/8 … G 1):
Design measuring range 06 (G 1 1/4):
Order Code:
Order number: DM01A.
Compact magnetic
inductive f ow meter
3. P. 01G. F. 0
Power supp y:
3 = 12...24 VDC (± 10 %)
16...24 VDC (at output 0 5...10 V)
Materia meas. tube / e ectrodes / O-ring:
P = PVDF / stainless steel 1.4404 / EPDM
PH = PVDF / Hastelloy C276 (2.4819) / FKM
(for measuring range 0MG 01G 02G only)
Measuring range, connection size:
0MG= 0 05...2 l/min G 3/8“ male (from 0 1 l/min in tol.*)
01G = 0 1...5 l/min G 1/2“ male ( from 0 25 l/min in tol.*)
02G = 0 25...20 l/min G 1/2“ male ( from 1 l/min in tol.*)
03G = 1...50 l/min G 3/4“ male ( from 2 5 l/min in
tolerance*)
05G = 4...200 l/min G 1“ male ( from 5 l/min in tolerance*)
06G = 5...250 l/min G 1 1/4“ male ( from 12 5 l/min in tol.*)
NPT thread on request
Output signa :
F = frequency signal (Push-Pull)
A = frequency signal (Push-Pull) and analogue signal 4...20 mA
V = frequency signal (Push-Pull) and analogue signal 0 5...10 V
Options:
0 = without
9 = please specify in plain text
Accessories:
SM12.: M12-p ug connector with
PVC cab e
length: 2 m 5 m 10 m
design: straight/angled
(see accessories type: SM12)
Technical Data:
Max. pressure: 10 bar (20 °C)
8 bar (40 °C)
6 bar (60 °C)
Media temperature: -10...+60 °C (not freezing)
Ambient temperature: 5...+60 °C
Housing materia : ABS
Wetted materia s: st. steel 1.4404 PVDF
Hastelloy C276 (2.4819)
EPDM FKM
*Meas. accuracy:
(to erance)
± 0 7 % of measured value and
± 0 3 % of full scale
Repeatabi ity: ± 1 %
Reaction time: < 100 ms
Min. conductivity: 20 µS/cm
F ow disp ay: LED green
flashes flow proportional
Power supp y.: 12...24 VDC (± 10 %)
16...24 VDC (at output 0 5...10 V)
Power consumption: max. 3 6 W
Output signa s: frequency signal (Push-Pull)
analogue signal 4...20 mA
analogue signal 0 5...10 V
E ectrica Connection: 4-pin round plug M12x1
Protection c ass IP65 (with screwed on mating
connector)
PKP Prozessmesstechnik GmbH
Borsigstr. 24 • D-65205 Wiesbaden
S [phone] • T [phone]
[email protected] • www.pkp.de
Flow