Page 1
Operating Instructions
for
Low Volume Rotating Vane
Flow Meter
Model: DTK
Page 2
DTK
1. Contents
1. Contents ........................................................................................................ 2
2. Note 3
3. Instrument Inspection .................................................................................... 3
4. Regulation Use.............................................................................................. 3
5. Operating Principle........................................................................................ 4
6. Mechanical Connection ................................................................................. 4
7. Electrical Connection ....................................................................................5
7.1 General ................................................................................................ 5
7.2 Plug Connection ..................................................................................5
7.3 Cable Connection ................................................................................5
7.4 Compact Electronics: (..C30R, ..C30M, ..C34P, ..C34N) .................... 5
8. Technical Information .................................................................................... 6
9. Order Codes .................................................................................................8
10. Dimensions ...................................................................................................9
11. Declaration of Conformance ....................................................................... 12
Manufactured and sold by:
Kobold Messring GmbH
Nordring 22-24
D-65719 Hofheim
Tel.: +49(0)6192-2990
Fax: +49(0)6192-23398
E-Mail: info.de@kobold.com
Internet: www.kobold.com
page 2 DTK K01/0708
Page 3
DTK
2. Note
Please read these operating instructions before unpacking and putting the unit
into operation. Follow the instructions precisely as described herein.
The devices are only to be used, maintained and serviced by persons familiar
with these operating instructions and in accordance with local regulations
applying to Health & Safety and prevention of accidents.
When used in machines, the measuring unit should be used only when the
machines fulfil the EWG-machine guidelines.
as per PED 97/23/EG
In acc. with Article 3 Paragraph (3), "Sound Engineering Practice", of the
PED 97/23/EC no CE mark.
Diagram 8, Pipe, Group 1 dangerous fluids
3. Instrument Inspection
Instruments are inspected 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:
The standard delivery includes:
• Low Volume Rotating Vane Flow Meter model: DTK
• Operating Instructions
4. Regulation Use
Any use of the Low volume rotating vane flowmeter, model: DTK”, which exceeds
the manufacturer’s specification may invalidate its warranty. Therefore, any
resulting damage is not the responsibility of the manufacturer. The user assumes
all risk for such usage.
DTK K01/0708 page 3
Page 4
DTK
5. Operating Principle
The medium flows through a specially shaped flow housing and causes a vane to
rotate. The vane has imbedded permanent magnets. Which are detected by a
Hall Effect sensor as they pass. The Hall Effect sensor generates a voltage pulse
each time a magnet passes. The frequency of the pulses is directly proportional
to the flow velocity.
6. Mechanical Connection
Before installation:
• Remove all transport packaging and ascertain that no packaging material is left
in the instrument
• Please ascertain whether the allowable maximum operating pressure and
operating temperature of the instruments will not be exceeded (see standard
material combinations).
• Please ascertain after completing of mechanical installation, whether the
connection between fitting and pipe is tight.
Warning! Overflows of more than 20 % might damage the bearings
and cause larger measuring errors or malfunction.
page 4 DTK K01/0708
Page 5
DTK
7. Electrical Connection
7.1 General
• Make sure that the power supply wires are de-energized.
• Connect the power supply and output signal wires according to the wiring
diagrams under 7.2
Caution! Incorrect connection will destroy the electronics.
Make sure that the power supply values of your system are
matching the power supply values of this instrument.
7.2 Plug Connection
DTK-...0400 DTK-...F3; DTK-...L3
NPN open collector PNP open collector
7.3 Cable Connection
DTK-...0P00; DTK-...0S00
white: + V
brown: GND
green: signal NPN open collector
S
7.4 Compact Electronics:
(..C30R, ..C30M, ..C34P, ..C34N)
see
Instruction Manual-Supplement
for Compact Electronics
DTK K01/0708 page 5
Page 6
DTK
8. Technical Information
Measuring accuracy: ± 2 % f. s.
Linearity: ± 1 % v. ME
Repeatability: ± 0.25 %
Medium temperature: -15 °C to +80 °C
Ambient temperature: -15 °C to +60 °C
Max. pressure: 30 bar
Materials
Housing: Stainless steel 1.3955
Orifice: Stainless steel 1.4404
Axle: Stainless steel 1.4404
Rotating vane: PVDF
Gasket: FPM (FPM)
Connection: G ¼ female thread
Installation position: horizontal
Protection type: IP 65
Electrical Data
OEM frequency output (DTK-...0*00) without CE-sign
Power supply: 4 – 24 V
Current input: typ. 5 mA
Pulse output: NPN, max. 20 mA, open collector
Electrical connection: 1,5 m PVC cable
AUF-4000 (option for DIN plug connector connection)
Display: 4-segment red LED
Temperature range: -20 to +80 °C
Power supply: 24 VDC ± 20 %
Input: Pulses of DTK (NPN-Hall effect sensor)
Output: 4 – 20 mA, 3-wire
Load: 250
DTK-...F300
Power supply: 12 – 28 V
Current input: 10 mA
Pulse output: PNP, open collector, max. 20 mA
Electrical connection: plug connector M12x1
± 5 % f. s. OEM-version
-15 °C to +140 °C (DTK-...0S00)
¼ NPT female thread
DC
1,5 m silicone cable
plug connector DIN 43650
DC
page 6 DTK K01/0708
Page 7
DTK-...F390
Power supply: 24 VDC ± 20 %
Current input: 15 mA
Pulse output: PNP; open collector, max. 20 mA
Frequency divider: 1...1/128, factory setting
Electrical connection: plug connector M12x1
DTK-...L303; DTK-...L343
Power supply: 24 VDC ± 20 %
Output: 0(4) – 20 mA, 3-wire
Max. load: 500
Electrical connection: plug connector M12x1
Compactelectronics
Display: 3-segment LED
Analogue Output: (0) 4…20 mA adjustable, max. 500
Switching Outputs: 1 (2) Semiconductor PNP or NPN, factory-set
Contact-function: N/C, N/O programmable
Adjustment: via 2 buttons
Power-Supply: 24 VDC ± 20 %, 3-wire technology,
approx. 100mA
Electrical Connection: Plug M12x1
DTK
DTK K01/0708 page 7
Page 8
DTK
9. Order Codes
Example: DTK-1206 G2 0000
Meas. range
[L/min]
Orifice
∅ [mm]
Frequency
at ME
Pressure
loss at ME
Model Connection Evaluating electronics
0.05 - 0.6 1.0 21 Hz 1.0 bar
0.1 - 1.3 1.5 30 Hz 1.0 bar
0.2 - 2.0 1.8 36 Hz 1.1 bar
0.3 - 3.5 2.5 41 Hz 0.9 bar
0.3 - 5.0 3.0 47 Hz 0.9 bar
0.5 - 7.0 3.5 51 Hz 1.0 bar
0.5 - 10.0 5.0 50 Hz 1.0 bar
1.0 - 12.0 6.0 44 Hz 0.9 bar
DTK-1210..
DTK-1215..
DTK-1218..
DTK-1225..
DTK-1230..
DTK-1233..
DTK-1250..
DTK-1260..
Plug-on display
for model DTK-...0400 (with DIN plug connector)
Description Order number
4-segment red LED display
Input: pulses of DTK (NPN-Hall effect sensor),
Power supply: 24 V
DC
Output: 4-20 mA 2-wire (max. 250 Ω)
Plug connector DIN 43650
Accessory
Round connector
Typ Description
ZUB-KAB-12D500 Round connector M12 x 1 Dose with terminal, 5-pol
ZUB-KAB-12K002 Round connector M12 x 1 Dose with 2 m cable, 4-pol
ZUB-KAB-12Q000 Round connector M12 x 1 Dose with Quick-on, 4-pol
..G2..= G 1/4
..N2..= 1/4
NPT
OEM frequency output without CE
..0P00= NPN, 1.5 m PVC cable
..0S00= NPN, 1.5 m silicone cable
..0400= NPN, plug connector DIN 43650
Frequency output
..F300= plug connector M12x1, PNP
..F320= plug con. M12x1, PNP, divider 1:2
..F340= plug con. M12x1, PNP, divider 1:4
..F390= plug con. M12x1, PNP, divider 1...
Analogue output
..L303= plug con. M12x1, 0 - 20 mA, 3-wire
..L343= plug con. M12x1, 4 - 20 mA, 3-wire
Compact electronic
..C30R= Compact electronics, 2xPNP, plug M12x1
..C30M= Compact electronics, 2xNPN, plug M12x1
..C34P= Compact electronics, 4-20mA, 1xPNP
..C34N= Compact electronics, 4-20mA, 1xNPN
AUF-4000
1
/128
page 8 DTK K01/0708
Page 9
DTK
10. Dimensions
DTK-...0P00; DTK-...0S00
DTK K01/0708 page 9
Page 10
DTK
DTK-...0400
DTK-...0400 with AUF-4000
page 10 DTK K01/0708
Page 11
DTK-...F3..; DTK-...L3...
DTK
DTK-...with compact electronic
DTK K01/0708 page 11
Page 12
DTK
11. Declaration of Conformance
We, KOBOLD Messring GmbH, Hofheim-Ts, Germany, declare under our sole
responsibility that the product:
Low Volume Rotating Vane Flow Meter Model: DTK-...
to which this declaration relates is in conformity with the standards noted below:
EN 50081-2 1994-03
EN 50082-2 1996-02
DIN EN 61010-1 1994-03
EN 60529, DIN VDE 0470-1 1992-11
Also the following EWG guidelines are fulfilled:
2004/108/EC EMC Directive
2006/95/EC Low Voltage Directive
97/23/EG PED
Category I, Table 8, pipe,
D 1 dangerous fluids
Module, mark CE0098
notified body: Germanischer Lloyd
Cert.-number: 390362-08 HH
Hofheim, 24. Jul. 2008
page 12 DTK K01/0708
H. Peters M. Wenzel
General Manager Proxy Holder
Loading...