Kobold DRZ Specifications

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 Ofce:

1.800.998.1020

1.412.788.4890
[e-mail]
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.