OVAL WHEEL METER SERIES OaP0 pages

OVAL WHEEL METER
SERIES OaP
1. IDENTIFICATION
Manufacturer

Bopp & Reuther Messtechnik
Am Neuen Rheinhafen 4
67346 Speyer
Phone : +49 (6232) 657-0
Fax : +49 (6232) 657-505

Product type

Direct volumetric meter
(positve displacement meter)

Product name Oval wheel meter series OaP
___________________________________________________________________________________________________________________

2. RANGE OF APPLICATION

Please note the Oval Wheel Meter's capability to measure liquids with
very high viscosities with nearly no pressure loss.
The high accuracy provided by the OaP series Oval Wheel Meters
ensure a maximum quality of the products being manufactured.

The field of application of all Oval Wheel Meters of the OaP series
comprises measuring, dosage, and controlling of liquids. Oval Wheel
Meters of the OI series meet all of these requirements. They are used
Oval Wheel Meters of the OaP series are manufactured with nominal
for the measurement of intermediate and final liquid products such as
widths of 25 to 400 mm. Depending on the nominal width they can be
liquified gases, acids, alkaline solutions, fats, alcohol, solvents,
used for up to PN 100 with a maximum operating temperature of up to
dispersions, polymers, polycondensates, paints, colors, adhesives
290 °C.
and other media.
___________________________________________________________________________________________________________________

3. MEASURING PRINCIPLE AND
SYSTEM CONFIGURATION

Pulse pick-up AG19 / AG20
see D-EN-17202-00 Rev.A
(attached devices acc. EN507 NAMUR)

3.1 MEASURING PRINCIPLE

Pulse pick-up AG44
see D-EN-17201-00 Rev.A
Wiegand-Principle
(attached devices acc. EN507 NAMUR

Oval Wheel Meters belong to the group of direct volumetric meters for
liquids with movable partition walls (displacement flow meters). The
Oval Wheel Meter consists of a measuring chamber housing with two
pivoted oval wheels, which are toothed and roll off in counter-rotations
around each other.
Each revolution of the oval wheels displaces four discrete volumes of
fluid (defined by the space between oval wheel and measuring
chamber) through the counter. The number of the rotations is a measure for the volume.

3.2 SYSTEM CONFIGURATION
Sensor element: Measuring of the volumetric flow and the volume
of liquids is performed by the oval wheel meter series OaP.
For all these oval wheel meters a wide choice of accessories is
available including mechanical, pneumatical, electrical and electronic
trans-mitters. Their signals may be used for remote counting, flow
measuring and flow control as well as for data processing systems. In
addition, automatic batch control systems (with appropriate valves) of
the most varied constructions and working principles are available to
facilitate dosage of media.

Single indicator E and
double indicator D
Mechanical resettable
Roller counter M5
M5, with printer M5B, with presetting device M5V or M5BV
KS (elecrical switch and
.)
KSP (pneumatical switch
.)
step switches sp2, sp22, se2

see D-EN-17205-00 Rev.A

Universal Smart Transmitter UST

see D-EN-1707-00-Rev.A

see D-EN-17205-00-Rev.A

The UST comes by default with a local display, a 4-20mA current
output for the flowrate signal and HART-communication (driver acc.
FDT available), as well as a pulse output acc. NAMUR for counting
(original or scalable).
The oval wheel meter series OaP is also available with a heating
jacket, type OUaP.

___________________________________________________________________________________________________________________

4. INPUT
4.1 MEASURED VALUE
Volume and volumetric flow

1