Kobold DPM Specifications

Pelton Wheel Flow Sensor

measuring

•

monitoring

•

analyzing

DPM

● Flow Range: 0.24...4.8 GPH to 0.8...80 GPH

● Brass or Stainless Steel Bodies

● Frequency Pulse or 4-20 mA Outputs

● Long-Life Sapphire Axle/Bearing Assembly

● Compact Design

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

01/09-19-2018

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

Pelton Wheel Flow Sensor Model DPM

Description

The DPM Series flow sensor uses the pelton wheel principle to
measure the flow of water and water-based, low-viscosity liquids that
are optically transparent. Liquid passes through a nozzle at the inlet of
the flow body and is precisely directed onto a flat-blade pelton turbine.
The flow sensor’s pelton turbine wheel rotates at a speed proportional
to flow rate. The movement of the pelton wheel is detected optically,
and the signal from the optical sensor is processed as an amplified
pulse or 4-20 mA signal, both of which are proportional to flow rate.
In addition to the DPM Series pelton wheel flow sensor’s compact
design, the inlet flow is redirected via a nozzle; therefore, no inlet or
outlet straight piping is required and allows the unit to be mounted in
any orientation with the axle remaining in the horizontal plane. These
features make the DPM Series flow sensor ideal for mounting in
locations where space is tight.

Specifications

Accuracy

DPM..K000 & DPM..F300: ±2.5% of f. s.
DPM..L, DPM..C & DPM..Z: ±1.5% of f. s.
Maximum Pressure: 230 PSIG
Operating Temperature: -10...176 °F
Electrical Protection: IP 65

Materials of Construction
Housing: 316L SS or Ni-Plated Brass
depending on model number
Nozzle: 316L SS
Axle/Bearing: Sapphire
Pelton Wheel: Polypropylene
Receiver: Polysulfone
O-ring: NBR for Brass housings,
FKM for 316L SS housings

Electrical Specifications

Frequency Output
Output Type
DPM..K000: NPN, open collector,
10 mA max.
DPM..F300: PNP, open collector,
25 mA max.
Input Power
DPM..F300: 24 VDC ±20%
DPM..K000: 4.5-12 V
Frequency Range: Based on model number

2

DC

www.koboldusa.com

Electrical Connection
DPM..K000: 5 ft. PVC cable
DPM..F300: Micro-DC plug,
4-pin male
4-20 mA Output
Output Type: 4-20 mA, 3-wire
Max. Loop Load: 500 ohms
Power Requirement: ±24 VDC 20%
Electrical Protection: IP 65
Electrical Connection: Micro-DC plug,
4-pin male or
DIN 43650
(Hirschmann) plug
Compact Electronics
Output Types: Analog output with
1 open collector
switch or 2 open
collector switches
Analog Output: 4-20 mA, 3-wire
RL<500 ohms
Switch Type: PNP open
collector based on
ordering code
Switch Rating: 300 mA Max. short
circuit protected
Power Requirement: 24 VDC ±20%
Display Type: 3 digit LED
User Programmable
Functions: Transmitter span,
switch setpoint,
lockout code
Housing: 304 SS
Electrical Connection: M-12 Micro-DC plug,
5-pin male

No responsibility taken for errors;

subject to change without prior notice.