Kobold DRS 0 Series User manual

Operating Instruction
for
Turbine-wheel Flow Meter
Model: DRS

DRS
Page 2 DRS K15/0722
1.Contents
1. Contents........................................................................................................2
2. Note ..............................................................................................................3
3. Instrument Inspection....................................................................................3
4. Regulation Use .............................................................................................4
5. Operating Principle........................................................................................4
6. Mechanical Connection.................................................................................5
6.1. Operational conditions check-up:.........................................................5
6.2. Mounting..............................................................................................5
7. Electrical Connection ....................................................................................6
7.1. General................................................................................................6
7.2. Evaluation electronics Frequency output without Pt100 ......................6
7.3. Evaluation electronics: Frequency output and analogue output with
Pt100 (DRS-..P)...................................................................................7
7.4. Evaluation electronics: analogue output (..L..).....................................7
7.5. Cable outlet with M12x1 angle plug electronic options F3x and L3x....9
7.6. Compact electronics: (..C30R, ..C30M, ..C34P, ..C34N) ....................9
8. Commissioning............................................................................................10
8.1. Frequency output...............................................................................10
8.2. Analogue output.................................................................................10
8.3. Compact electronics ..........................................................................10
9. Maintenance ...............................................................................................11
10. Technical information..................................................................................12
10.1. Sensor data .......................................................................................12
10.2. Evaluation electronics........................................................................12
11. Order Codes ...............................................................................................14
12. Dimensions .................................................................................................16
13. Disposal......................................................................................................17
14. EU Declaration of Conformance .................................................................18
15. UK Declaration of Conformity......................................................................19
Manufactured and sold by:
Kobold Messring GmbH
Nordring 22-24
D-65719 Hofheim
Tel.: [phone]
Fax: [phone]
E-Mail: [email protected]
Internet: www.kobold.com

DRS
DRS K15/0722 Page 3
2.Note
Please read and take note of these operating instructions before unpacking and
putting the unit in operation and follow the instructions precisely as described
herein.
The instruction manuals on our website www.kobold.com are always for currently
manufactured version of our products. Due to technical changes, the instruction
manuals available online may not always correspond to the product version you
have purchased. If you need an instruction manual that corresponds to the
purchased product version, you can request it from us free of charge by email
([email protected]) in PDF format, specifying the relevant invoice number and
serial number. If you wish, the operating instructions can also be sent to you by
post in paper form against an applicable postage fee.
The devices are only to be used, maintained and serviced by persons familiar
with these operating instructions and with the prevailing regulation applying to
procedural safety and the prevention of accidents.
When used in machines, the measuring unit should be used only then when the
machines fulfil the EC-machine guide lines.
PED 2014/68/EU
In acc. with Article 4 Paragraph (3), "Sound Engineering Practice", of the
PED 2014/68/EU no CE mark.
Table 8, Pipe, Group 1 dangerous fluids
3.Instrument Inspection
These devices are checked before shipping and sent out in perfect condition.
Should damage to a device be visible, we recommend a thorough inspection of
the delivery packaging. In case of damage, please inform your parcel
service/forwarding agent immediately, since they are responsible for damages
during transit.
Scope of delivery:
•Turbine-Wheel Flow Meter: Model DRS

DRS
Page 4 DRS K15/0722
4. Regulation Use
The DRS is to be installed only in the specified applications. Any use of the DRS
sensor which exceeds the manufacturer’s specifications may invalidate the
warranty and any resulting damage is not the responsibility of the manufacturer.
The user assumes all risk for such usage. The application specifications include
the installation, start-up and service requirements specified by the manufacturer.
5. Operating Principle
The DRS flow meter operates on the turbine wheel principle. The liquid first flows
through a laminar flow element that eliminates turbulence and routes the flow
stream into the turbine wheel. The turbine wheel then starts to rotate. This rotary
motion is sensed non-contacting by magnets embedded in the turbine wheel and
converted to a frequency signal. The frequency is proportional to the flow velocity.
Various outputs, such as frequency divider, analogue output or compact
electronics with LED display with limit contacts are available as options. An
integrated temperature sensor for simultaneous measuring of flow rate and
temperature is also available as an additional option. The rotating vane is
sapphire-supported: this ensures a high degree of linearity and long service life.

DRS
DRS K15/0722 Page 5
6.Mechanical Connection
6.1.Operational conditions check-up:
•Flow volume
•max. operational pressure
•max. operational temperature
Attention! Exceeding prescribed ranges may cause damage to ball-
bearings and considerable measurement errors may result.
6.2.Mounting
•Installation can take place in horizontal and ascending pipes, flow direction
from bottom to top. Flow in the direction of the arrow.
•Pressure- and tensile loading is to be avoided on the connection threads.
Inlet and outlet piping should be secured at least 50 mm away mechanically
from the connections.
•Check the sealing of the connections
•The use of flat sealings is to be preferred. The sealing surfaces are shown in
section 11 - “Dimensions“

DRS
Page 6 DRS K15/0722
7.Electrical Connection
7.1.General
Attention! Ensure that the power ratings of your supply system are
in agreement with the power ratings of the flow meter.
•Please ensure that the electric supply lines are not active.
•Wire the connection cable/plug with the supply line according to the following
connection diagram.
•We recommend a cross-sectional area of 0.25 mm² for the supply line.
Attention! A false level on plug connections may cause destruction
of unit’s electronics.
7.2.Evaluation electronics
Frequency output without Pt100
Plug connection(..F3000; ..F3200; ..F3400; ..F3900)
1
2
34
+Vs
Signal
Out
n.c.
GND
Plug connection (..F5000; ..F5200; ..F5400; ..F5900; ..K0000)
brown: + VS
blue: GND
Black: Signal
...S0000 ...S000P
white: + Vs brown: + Vs
green: Signal black: Signal
brown: GND green-yellow: GND/PT100-1
yellow: PT100-2

DRS
DRS K15/0722 Page 7
7.3.Evaluation electronics:
Frequency output and analogue output with Pt100 (DRS-..P)
Plug connection (..F300P;
..F320P, ..F340P, ..F390P,
..L303P; ..L343P)
1
43
2
5
PT100
PT100
GND
+Vs
out
PNP
Cable connection (..F500P;
..F520P, ..F540P, F590P)
brown: +Vs
blue: GND
black: Signal
white: PT100 2-wire
grey: PT100 2-wire
7.4.Evaluation electronics: analogue output (..L..)
3-conductor (..L303, ..L343)
1
2
34
+Vs
Signal
Out
n.c.
GND
+Vs
GND

DRS
page 8 DRS K05/1116
2-conductor (..L342)
1
2
34
S+
S-
n.c.
n.c.
+Vs
GND
2-conductor, DIN-plug
(DRS-...L442)
+Vs
GND
1
23
S+
S-
PE n.c.

DRS
DRS K15/0722 Page 9
7.5.Cable outlet with M12x1 angle plug electronic options F3x
and L3x
When using a pre-assembled M12x1 connection cable with angled plug, the
cable outlet is always aligned opposite to the flow direction.
7.6.Compact electronics:
(..C30R, ..C30M, ..C34P, ..C34N)
Please see
Operating Instruction Manual for compact electronics with frequency output

DRS
page 10 DRS K05/1116
8.Commissioning
8.1.Frequency output
The measuring units are pre-adjusted and ready for operation after electrical
connection.
8.2.Analogue output
The measuring units are pre-adjusted and ready for operation after electrical
connection.
8.3.Compact electronics
Please see
Operating Instruction Manual for compact electronics with frequency output

DRS
DRS K15/0722 Page 11
9.Maintenance
As long as the medium to be measured is not polluted, the measuring unit is
maintenance-free. In order to avoid problems, we recommend installation of a
filter, such as magnet filter, Model MFR.
Should cleaning be deemed necessary, the sensor must be uninstalled and
rinsed thoroughly in clean water.
Work on electronics may only be carried out by the supplier, so that the product
guaranty remains valid.

DRS
page 12 DRS K05/1116
10.Technical information
10.1. Sensor data
Measuring range: 2-40 L/min water
Sensor pulse output: 384 Hz at 40 L/min Metal Sensor
(DRS-...150; DRS-...250)
352 Hz at 40 L/min plastic sensor (DRS-...350)
Max. operating pressure: 200 bar (DRS-...150; DRS-...250)
16 bar (DRS- ...350)
Temperature: -20 to +80 °C (medium, standard), -20...+150 °C
(medium, -S00x), -20 to +100 °C (storage)
Measuring accuracy: ±1.5% of f.s.
±5 % of f.s. (DRS-0)
Linearity: ±0.5 % of f.s.
Repeatability: ±0.1 % of f.s.
Electrical connection: plug connector M12x1 1.5 m cable (DRS-0 only)
2 m cable (DRS-...F5 only)
Protection: IP 65 (plug connector), IP 66 (cable)
Weight (sensor and electronics)
Sensor: approx. 80 g (DRS-...350)
approx. 550 g (DRS-...150; DRS-...250)
Electronics: approx. 60 g (DRS-...K..; DRS-...F..; DRS-...L3...)
approx. 100 g (DRS-...L442)
approx.. 450 g (DRS-…Z…)
approx. 650 g (DRS-...C...)
10.2. Evaluation electronics
DRS-0...K000 / DRS-0...S00x
Supply: 5...28 VDC
Output pulse: rectangular pulse signal, open collector, NPN,
max. 10 mA
DRS-...F300, DRS-...F500
Supply: 12…28 VDC
Power consumption: 10 mA
Pulse output: PNP, open collector, max. 20 mA
Option: Pt 100, 2-wire
Response time (Pt100): t90 = 100 s

DRS
DRS K15/0722 Page 13
DRS-...F390
Supply: 24 VDC ± 20 %
Power consumption: 15 mA
Pulse output: PNP, open collector, max. 20 mA
Frequency divider: 1...1/128, factory setting
Option: Pt 100, 2-wire
Response time (Pt100): t90 = 25 s (DRS-91…/-92…)
t90 = 100 s (DRS-93…)
DRS-...L...
Supply: 24 VDC ± 20%
Output: 0(4)-20 mA, 3-wire or 2-wire
Max. load: 500 Ω
Option: Pt 100 (2-wire)
Response time (Pt100): t90 = 25 s (DRS-91…/-92…)
t90 = 100 s (DRS-93…)
DRS-...C30...
Compact electronics
Display: 3-digit LED
Switching outputs: 2 semiconductor PNP or NPN, factory set
Contact operation: N/C / N/O contact frequency programmable
Setting: with 2 buttons
Supply: 24 VDC ±20%, 3-wire
Power consumption approx. 100 mA
Electrical connection: plug connector M12x1
DRS-...C34...
Compact electronics
Display: 3-digit LED
Analogue output: (0)4...20 mA adjustable, max. 500 Ω
Switching outputs: 1 semiconductor PNP or NPN, factory set
Contact operation: N/C / N/O contact frequency programmable
Setting: with 2 buttons
Supply: 24 VDC ±20%, 3-wire
Power consumption: approx. 100 mA mA
Electrical connection: plug connector M12x1

DRS
page 14 DRS K05/1116
11.Order Codes
Order Details (example: DRS-9350 I4 L303 0)
Material
sensor housing
Model
Connection
Evaluating electronics
Option
14 = G 1/2
female thread
G4 = G 1/2 female/
male thread
G5 = G 3/4
male thread
N5 = 3/4 NPT
male thread
Frequency output
F300 = Plug connector M12x1, PNP
F320 = Plug connector M12x1, PNP, divider 1:2
F340 = Plug connector M12x1, PNP, divider 1:4
F390 = Plug connector M12x1, PNP, divider 1...1/128
F500 = 2 m PVC cable, PNP
Analogue output
L303 = Plug connector M12x1, 0 - 20 mA, 3-wire
L342 = Plug connector M12x1, 4 -20 mA, 2-wire
L343 = Plug connector M12x1, 4 - 20 mA, 3-wire
L442 = Plug connector DIN 43 650, 4 - 20 mA, 2-wire
Compact electronics1)
C30M = LED display, 2 x NPN switching output,
Plug connector M12x1
C30R = LED display, 2 x NPN switching output,
Plug connector M12x1
C34N = LED display, 4 - 20 mA, 1 NPN switching output,
Plug connector M12x1
C34P = LED display, 4 - 20 mA, 1 PNP switching output,
Plug connector M12x1
0= without
P= Pt 1002)
Y= Special model
Brass DRS-9150
Stainless steel DRS-9250
Plastic (PPO) DRS-9350
1) Please specify flow direction in writing. 2) Only for option F3/F5 and L3x3 in brass and st.st. version
Plug-on display
For model DRS-...L442 (with 4-20 mA output and
DIN plug connector)
Description
Order number
4-digit LED,
connector DIN 43650, 2-wire,
supply through analogue output
AUF-1000
as above
however, with additional
open collector output
AUF-1001

DRS
DRS K15/0722 Page 15
Order details OEM version example: DRS-0350 I4 K0000)
Material
sensor housing
Model Connection Evaluating electronics
Brass DRS-0150
I4 = G 1/2 female thread
G4 = G 1/2 female/male thread
G5 = G 3/4 male thread
N5 = 3/4 NPT male thread
Frequency output
K0000 = 1.5 m PUR cable, black, NPN, OEM without CE
S0000 = 1.5 m silicone cable, NPN, OEM without CE
S000P = 1.5 m silicone cable, NPN, PT100, OEM without CE,
Pt100, max. 150 °C (not for DRS-0350)
Stainless steel DRS-0250
Plastic (PPO) DRS-0350

DRS
page 16 DRS K05/1116
12.Dimensions
Connection threads: female/female; male/male and female/male with the same
outer dimensions.
35
80 SW 32
M12x1
36
50
63,4
16
D
D
Kabel-
version
DRS-...F/...L
OBOLD
50
∅
44,5
1
0
2
5
1
1
8
5
2
3
7
A
1
A
1
SW 36
SW 32
80
13,5
D
D
Cable 2 m
with plug
M 12x1
DRS-...C
D = Sealing areas
Cable
version

DRS
DRS K15/0722 Page 17
13.Disposal
Note!
•Avoid environmental damage caused by media-contaminated parts
•Dispose of the device and packaging in an environmentally friendly
manner
•Comply with applicable national and international disposal regulations and
environmental regulations.
Batteries
Batteries containing pollutants are marked with a sign consisting of a crossed-out
garbage can and the chemical symbol (Cd, Hg, Li or Pb) of the heavy metal that
is decisive for the classification as containing pollutants:
Cd1Hg2Pb3Li4
1. „Cd" stands for cadmium
2. „Hg" stands for mercury
3. „Pb" stands for lead
4. „Li" stands for lithium
Electrical and electronic equipment

DRS
page 18 DRS K05/1116
14.EU Declaration of Conformance
We, KOBOLD-Messring GmbH, Hofheim-Ts, Germany, declare under our sole
responsibility that the product:
Turbine-wheel Flow Meter Model: DRS-…
to which this declaration relates is in conformity with the standards noted below:
EN 61000-6-4:2011
Electromagnetic compatibility (EMC) - Part 6-4: Generic standards - Emission
standard for industrial environments
EN 61000-6-2:2005
Electromagnetic compatibility (EMC) - Part 6-2: Generic standards - Immunity for
industrial environments
EN 61010-1:2020
Safety requirements for electrical equipment for measurement, control and
laboratory use - Part 1: General requirements
EN 60529:2014
Degrees of protection provided by enclosures (IP Code)
EN IEC 63000:2018
Technical documentation for the assessment of electrical and electronic products
with respect to the restriction of hazardous substances
Also, the following EC guidelines are fulfilled:
2014/30/EU EMC Directive
2011/65/EURoHS (category 9)
2015/863/EU Delegated Directive (RoHS III)
Hofheim, 24 May 2021
H. Volz M. Wenzel
General Manager Proxy Holder

DRS
DRS K15/0722 Page 19
15.UK Declaration of Conformity
We, KOBOLD Messring GmbH, Hofheim-Ts, Germany, declare under our sole
responsibility that the product:
Turbine-wheel Flow Meter model: DRS-...
to which this declaration relates is in conformity with the standards noted below:
BS EN 61000-6-4:2007+A1:2011
Electromagnetic compatibility (EMC). Generic standards. Emission standard for
industrial environments
BS EN 61000-6-2:2005
Electromagnetic compatibility (EMC). Generic standards. Immunity for industrial
environments
BS EN 61010-1:2010+A1:2019
Safety requirements for electrical equipment for measurement, control, and
laboratory use. General requirements
BS EN 60529:1992+A2:2013
Degrees of protection provided by enclosures (IP Code)
BS EN IEC 63000:2018
Technical documentation for the assessment of electrical and electronic products
with respect to the restriction of hazardous substances.
Also, the following UK guidelines are fulfilled:
S.I. 2016/1091 Electromagnetic Compatibility Regulations 2016
S.I. 2012/3032 The Restriction of the Use of Certain Hazardous
Substances in Electrical and Electronic Equipment
Regulations 2012
Hofheim, 24 May 2021
H. Volz M. Wenzel
General Manager Proxy Holder