●PPS Body with Nickel Plated Brass or 316 SS
Fittings
●Outputs: Analog, Frequency, Switching,
Electronics with Digital Displays, Batching and
Totalizing Electronics
●Economically Priced
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
KOBOLD Instruments, Inc.
1801 Parkway View Drive
Pittsburgh, PA 15205
The KOBOLD DVZ series vortex flowmeters are the perfect
solution for applications where reliability and low cost are
desired. The DVZ senses the flow rate of low viscosity liquids
using the vortex shedding principle. A small obstruction called
a bluff body is placed in the flow path. As liquid flows across
the bluff body, small low-pressure areas called vortices are
created just behind the bluff body. The position of the vortices
alternate to either side of the bluff body in a uniform pattern.
The frequency of the vorticy shift is directly proportional to flow
rate. This shift in the vortices is detected by a very sensitive
pressure sensor and processed as a flow rate signal.
The vortex flowmeter has no moving parts and is very reliable.
The DVZ series is available with a PPS body and a choice
of either nickel-plated brass or 316 stainless steel fittings.
The bluff body is available in either PPS or ceramic, which
has excellent long term wear characteristics. The available
outputs are frequency, 4-20 mA, adjustable relay, and
compact electronics with digital flowrate display, 4-20 mA
output and adjustable transistor switch options. The DVZ
series is rounded off by an optionally available batching or
totalizing electronic.
Areas of Application
Maximum Media Viscosity*
Measuring
Range
Code
..04.. / ..U1..0.51.53.0--2 cSt
..07.. / ..U2..0.81.53.0--2 cSt
..10.. / ..U3..1.31.33.5--2 cSt
..16.. / ..U4..2.02.03.5--4 cSt
..22.. / ..U5..3.23.23.26.0-4 cSt
..32.. / ..U6..4.04.04.03.212.57 cSt
..40.. / ..U7..4.04.04.08.015.07 cSt
..50.. / ..U8..5.05.05.09.016.57 cSt
..63.. / ..U9..6.36.36.310.018.57 cSt
..80.. / ..UA..8.08.08.011.020.57 cSt
..99.. / ..UB..10.010.010.011.523.07 cSt
*When using viscous media, the decreased Reynold's number
Measuring Range Start Point
1 cSt1.5 cSt 2 cSt4 cSt7 cSt
Max.
Viscosity
causes a displacement of the measuring range start point to higher
values. The measuring range end point values stay unchanged.
• Monitoring the Flow of Low Viscosity Liquids
• Measuring Aggressive, High-purity, or Salty Solutions
• Not Suitable for Abrasive Media or Media Containing a
Large Amount of Fibers
Specifications
Available Ranges:
0.13...1.2 to 2.7...26
GPM Water
Accuracy: ± 2.5% of Full Scale
Repeatability: ± 1% of Full Scale
Straight Pipe Requirement: 10x Diameter Upstream
Flow Monitor, Monitoring for Part
and Total Quantity, & Language
Power Supply:24 VDC ±20 %, 3-wire
Power Consumption: Approx. 150 mA
Electrical Connection
E14R: 1 meter Integrated Cable
E34R: Micro-DC, 8-pin & 5-pin, Male
DVZ-..L443 with Optional AUF-3000
Power Supply: 24 VDC ± 20%
Output: 4-20 mA, 3-wire
Max. Load: 250 Ω with AUF-3000
Electrical Connection: DIN 43650 Plug
Electrical Protection: IP 65
DVZ-..C30R, C30M
Power Supply: 24 VDC ± 20%
Output
C30M: NPN Open Collector Switch (2x)
C30R: PNP Open Collector Switch (2x)
Switch Ratings: 300 mA Max.
Programming: Switch Setpoint, Reset Point,
Switching Logic, Dampening, Lock
Out Code - via 2-button Keypad
Power Consumption: Approx. 100 mA
Electronic Connection: Micro-DC, 5-pin, Male
Electronic Protection: IP 65
No responsibility taken for errors;
subject to change without prior notice.
www.koboldusa.com
DVZ-..G14R, G34R
Display: LCD, 2 x 8 Digits, Illuminated,
Batching, Total, and Flow Quantity,
Unit Selectable
Totalizer Display:8-DigitBatcher:5-Digit
Analog Output:4-20 mA Adjustable0-10 VDC (Upon Request)
Load:Max. 500 Ω Switching Output: Relay (2x), Max. 30 V, 2 A
Settings: Via 4 Buttons
Functions: Batching (Relay S2), Start, Stop,
Reset, Fine Batching, Correction Amount, Flow Switch, Total
Quantity, & Language
Power Supply: 24 VDC ±20 %, 3-wirePower Consumption: Approx. 150 mA
Electrical Connection G14R: 1 meter Integrated Cable
G34R: Micro-DC, 8-pin & 5-pin, Male
3
Page 4
Compact Vortex Flowmeter Model DVZ
Order Details (Example: DVZ-34U6N5L343 with Accessory 807.037)
Accessories: 807.037 = Mating 4-Pin Micro-DC Plug with 6 foot Cable for Output F300, F390, S30D & L343
807.007 = Mating 5-pin Micro-DC Plug with 6 foot Cable for Output C30M, C30R, C34N, C34P, S300, E34R, & G34R
807.087 = Mating 8-pin Micro-DC Plug with 6 foot Cable for Output E34R & G34R
*Please specify frequency out at max. flow when ordering
**Reinforced sesign only available with fixed connections
***Please specify flow direction when ordering
DVZ-..S30x
DVZ-..F3x0
DVZ-..L443
with AUF-3000
DVZ-..C3xx
DVZ-..L3x3
4
www.koboldusa.com
subject to change without prior notice.
No responsibility taken for errors;
Page 5
Electrical Connections
Compact Vortex Flowmeter Model DVZ
DVZ-..S300
DVZ-..S30D
DVZ-..F300, F390, L343
DVZ-..E14R, G14R Wire Designations
Wire
Number
124 VDC24 VDC
2GNDGND
34-20 mA4-20 mA
4n.c.Control 1*
5GNDGND
6Reset Part QuantityControl 2*
7
8
9
10
*Control 1 <-> GND: Start-Batching
Control 2 <-> GND: Stop-Batching
Control 1 <-> Control 2 <-> GND: Reset-Batching