Piston Flowmeters
for Viscous Media
measuring
•
monitoring
•
analyzing
DRZ
● Flow Range: 1.6...110 GPH
6...420 LPH
● Connection: 1/8" NPT, 1/4" NPT,
G 1/8, G 1/4
● Max. Temperature: 176 °F
● Max. Pressure: 580 PSIG
● Viscosity Range: 5...100 cSt
● Economical Brass Construction
● Accuracy: ±1% Reading
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
01/05-08-2018
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
Piston Flowmeters Model DRZ
Description
The KOBOLD DRZ series rotary piston positive displacement
flowmeter combines economy with high performance. It is
designed to measure any clean, free-flowing liquid with
lubricating properties and viscosity ranging from 5 to 100
centistokes. The unique design uses a single piston rotating
on a camshaft to measure a very precise volume with each
rotation. The rotation is detected by a Hall effect sensor and
is processed by electronics into: a blind pulse output (PNP
or NPN based on model ordered) or a full featured controller
with flowrate indication, analog output, and switches.
Unlike other piston type meters, the DRZ piston rotates
in an orbital fashion which minimizes flow pulsations. The
rugged brass body provides a pressure rating to 580 PSIG
and a low pressure drop of 20 PSI maximum. Typical media
includes: lubricating oil, diesel fuel, glycol mixtures, waxes,
paint, latex polymers, sugar solutions and detergents.
Specifications
Area of Application: Low and Medium Viscosity
Liquids which have
Lubricating Properties
Measuring Range: 1.6...110 GPH
6...420 LPH
Max. Throughput: 160 GPH
Accuracy: ±1.0% of Reading
Repeatability: ±0.2% of Reading
Viscosity Range: 5...100 cSt
Process Temp. Range: -10...176 °F
Ambient Temp. Range: -10....140 °F
Max. Pressure: 580 PSIG
Max. Differential
Pressure: 20 PSI
Wetted Materials: Brass, Titanium, POM, FKM
Req. Filtration: 150 Mesh
Electrical Specifications
Output Type 0000 = OEM NPN Pulse
Power Requirement: 5-24 VDC at 10 mA Max.
Output: NPN Open Collector
Max. Output Load: 15 mA
K-Factor: 1633 pulses/gal.
Elec. Protection: NEMA 4X/IP65
Elec. Connection: DIN 43650 Plug
Note: May be combined with AUF-4000 to provide LED
display with 3-wire 4-20 mA output
AUF-4000 Pulse to 4-20 mA Converter with Display
Power Requirement: 14-30 V
Input: Pulse
DC
Output: 4-20 mA, 3-wire
Max. Output Load: 250 ohms
Elec. Protection: NEMA 4X/IP65
Elec. Connection: DIN 43650 Plug
2
Output Type F300 = PNP Pulse
Power Requirement: 24 VDC ±20% at 10 mA Max.
Output: PNP Open Collector
Max. Output Load: 25 mA
K-Factor: 1633 pulses/gal.
Elec. Protection: NEMA 4X/IP65
Elec. Connection: Micro-DC, 4 Pin Male
Output Type F3X0 = PNP Pulse with Frequency Divider
Power Requirement: 24 VDC ±20% at 10 mA Max.
Output: PNP Open Collector
Max. Output Load: 25 mA
Elec. Protection: NEMA 4X/IP65
Elec. Connection: Micro-DC, 4 pin Male
Output Type L343 = 4-20 mA
Power Requirement: 24 VDC ±20% at 10 mA Max.
Output: 4-20 mA, 3-wire
Max. Output Load: 500 ohms
Elec. Protection: NEMA 4X/IP65
Elec. Connection: Micro-DC, 4 pin Male
Output Type C30M, C30R, C34N, C34P Compact Electronics
Housing Material: 303 Stainless Steel
Power Supply: 24 VDC ±20%
Display: 3 Digit LED
Output Types: Analog Output, 1 or 2 Switches,
Based on Model Code
Analog Output: 4-20 mA, 3-wire, Rloop<500 ohms
Switch: PNP or NPN Open Collector,
300 mA Max.
Elec. Protection: NEMA 4X/IP65
Elec. Connection: Micro-DC, 5 pin Male
www.koboldusa.com
DP vs. Flowrate
No responsibility taken for errors;
subject to change without prior notice.
Piston Flowmeters Model DRZ
Order Details (Example: DRZ-1120 N2 C34P)
Measuring Range Fittings Output Type
..0000 = OEM NPN Pulse
..F300 = PNP Pulse
6...420 LPH = DRZ-1110..
1.6...110 GPH = DRZ-1120..
Accessories:
Part Number 807.037 = Mating 4-pin Micro-DC Plug with 6 feet of Cable for Output Type F300, 320, 340, 390 and L343
Part Number 807.007 = Mating 5-pin Micro-DC plug with 6 feet of Cable for Output Type C30M, C30P, C34N and C34P
Part Number AUF-4000 = Snap-on Display, Pulse Input to 3-wire 4-20 mA for Output Type 0000
..N1.. = 1/8" NPT
..N2.. = 1/4" NPT
..G1.. = 1/8" BSP
..G2.. = 1/4" BSP
..F320 = PNP Pulse, 1:2 Freq. Divider
..F340 = PNP Pulse, 1:4 Freq. Divider
..F390 = PNP Pulse, Custom Freq. Divider
..L343 = 4-20 mA, 3-wire, Micro-DC Plug
..C30M = LED Display w/ 2 NPN Switches, Micro-DC Plug
..C30P = LED Display w/ 2 PNP Switches, Micro-DC Plug
..C34N = LED Display w/ 4-20 mA + 1 NPN Switch Micro-DC Plug
..C34P = LED Display w/ 4-20 mA + 1 PNP Switch Micro-DC Plug
DRZ Principle of Operation
1. Liquid enters the meter through the inlet port. Liquid momentum causes
the internal piston to rotate about the cammed axle.
2. As the piston rotates, a known volume fills the meter cavity V2.
3. The liquid volume is sealed inside the meter cavity by the piston and a
partition which separates the inlet port from the outlet port.
4. When the piston rotates past the outlet port, the known liquid volume
V2 exits the meter. The piston rotation is detected by a Hall effect sensor
and an output pulse is generated. Each pulse correlates to a precisely
measured volume for liquid flow.
No responsibility taken for errors;
subject to change without prior notice.
www.koboldusa.com
3
Electrical Connection
Piston Flowmeters Model DRZ
DRZ-..F3.. and DRZ-..L343
Dimensions
DRZ with Output Type 0000 (OEM Pulse)
DRZ-..0000
DRZ-..C3..
DRZ with Output Type 0000 and AUF-4000
DRZ with Output Type F3.. or L343
4
DRZ with Output Type C3..
www.koboldusa.com
DRZ Bottom View
No responsibility taken for errors;
subject to change without prior notice.
Loading...