Kobold RCD Specifications
Differential Pressure Flowmeters
for Water or Water-like Liquids
measuring
•
monitoring
•
analyzing
RCD
●● Measuring Ranges:
0.2...0.88 to 100...600 GPM (Water)
●● Accuracy: ± 3% of Full Scale
●● Max. Pressure: 580 PSIG
●● 1/2" to 3" Line Sizes
●● Materials: Brass and
316L Stainless Steel
●● Digital Indicator, Transmitters,
and Switches Available
KOBOLD companies worldwide:
ARGENTINA, AUSTRALIA, AUSTRIA, BELGIUM, BULGARIA, CANADA, CHILE, CHINA, COLOMBIA,
CZECH REPUBLIC, EGYPT, FRANCE, GERMANY, HUNGARY, INDIA, INDONESIA, ITALY, MALAYSIA,
MEXICO, NETHERLANDS, PERU, POLAND, REPUBLIC OF KOREA, ROMANIA, SINGAPORE, SPAIN,
SWITZERLAND, TAIWAN, THAILAND, TUNISIA, TURKEY, UNITED KINGDOM, USA, VIETNAM
01/03-28-2018
KOBOLD Instruments, Inc.
1801 Parkway View Drive
Pittsburgh, PA 15205
Main Ofce:
1.800.998.1020
1.412.788.4890
info@koboldusa.com
www.koboldusa.com
Differential Pressure Flowmeters Model RCD
Description
The RCD series differential pressure flowmeter measures flows of
water and water-like liquids using the orifice principle. The orifice,
located in the flow body, generates a differential pressure which
varies with the rate of flow. The differential pressure is applied to
a measuring bellows. This is then linked to a Hall effect sensor,
which is input to a compact or full featured electronic display and
controller. This unique design, using a single measuring bellows,
enables the accuracy to be unaffected by fluctuations in pressure.
The meter movement is a single fulcrum lever design, with a
minimal number of wear components, that is simple and reliable.
It is available with brass or 316L stainless steel bodies ranging in
size from 1/2" NPT to 3" NPT. The various electronic displays and
control units offer a variety of options such as digital or bargraph
displays, adjustable switches, and flow transmitters.
Areas of Application
●● Machinery Manufacturing
●● Chemical Industry
●● Heavy Industry
●● Process Equipment
Housing
Gehäuse
Flow
Durchfluss
Force
P
1
P
2
P
1
P
2
V
V
1
2
Bewegung
Magnet
Magnet
Bellows
Faltenbalg
Technical Details
Measuring Accuracy: 3 % of Full Scale
Repeatability: 1 % of Full Scale
Process Temperature: 32...176 °F
Ambient Temperature: Max. 176 °F
Max. Pressure: 360 PSIG
(RCD-11 Connection: 3" NPT)
580 PSIG (All Others)
Pressure Loss: Approx. 5 PSI
Minimum Pressure: 10 PSIG
Protection: IP 65
Materials
Display Case: Cast Aluminum or Stainless Steel
Body: RCD-x1..: Brass
RCD-x2..: 316L Stainless Steel
Differential Pressure
Housing: RCD-x1..: Brass
RCD-x2..: 316L Stainless Steel
Pressure Meas. Cell: 316L Stainless Steel
Orifice: 316L Stainless Steel
Seals: RCD-x1..: NBR
RCD-x2..: FKM
Orifice
> V1 => P
V
2
> P
1
2
Venturidüse
Display/Electronics:
●● Compact Electronics: RCD-C
Display: 3-Digit LED
Analog Output: 4...20 mA Adjustable, Max. 500 Ω
Switching Outputs: 1 (2) Semiconductor PNP or NPN,
Factory Set
Contact Operation: N/C / N/O Programmable
Setting: Via 2 Buttons
Supply: 24 VDC ± 20%, 3-wire,
Approx. 100 mA
Electrical Conn.: Plug Connector M12 x 1
●● ADI-1 Electronics: RCD-K
Display: Bar Graph and 5-Digit Digital Display
Analog Output: 4...20 mA, 0-10 V
DC
2 Switching Outputs: Relay/Changeover Contact,
Max. 250 VAC/5 A Resistive Load,
Max. 30 VDC / 5 A
Setting: Via 4 Buttons
Supply: 100 ... 240 V
18 ... 30VAC / 10 ... 40 V
±
10 % or
AC
DC
Electr. Connection: Pluggable Terminal Block Via
Cable Gland
2
www.koboldusa.com
No responsibility taken for errors;
subject to change without prior notice.
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