Badger Meter Oscillating Piston Meter User Manual
Industrial Meters
Oscillating Piston, Model OP Chemical & Sanitary,
Sizes 1/2", 1", 2"
OPM-UM-00291-EN-02 (August 2013)
User Manual
Industrial Meter, Oscillating Piston, Sizes 1/2" through 2" Model OP
Page ii August 2013
User Manual
CONTENTS
SCOPE OF THIS MANUAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Unpacking and Inspection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Dimension Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Performance Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
OPERATING INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
General Operating Instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Shutdown Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
MAINTENANCE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Preventive Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Calibration Check and Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Servicing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
SPECIFICATIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
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Industrial Meter, Oscillating Piston, Sizes 1/2" through 2" Model OP
Page iv August 2013
User Manual
SCOPE OF THIS MANUAL
This manual contains information concerning the installation, operation and maintenance of Badger oscillating piston meters.
To ensure proper performance of the meters covered, the instructions given in this manual should be thoroughly understood.
Retain the manual in a readily accessible location for future reference.
Description
Badger oscillating piston meters are positive displacement type meters intended for use in fluid metering applications
involving chemical solutions or food ingredients. The meters are available in a variety of size and configurations that cover
a wide range of flow rates and special applications. The design of the meters incorporates a magnetic drive system that
minimizes the number of parts in contact with the fluid being metered. A removable housing cover provides easy access to
the internal components of a meter for cleaning and/or maintenance.
The basic components of an oscillating piston meter (see Figure 1) consists of a precision-machined housing, piston, magnet
assembly, control roller and housing cover. In operation, the piston functions as the measuring element. As fluid flows
through the meter, it causes the piston to oscillate within a measuring chamber in the meter housing. Each oscillation of the
piston is proportional to a specific volume of fluid. The specific volume measured varies with the size of the meter. The larger
the meter, the larger the volume of fluid measured for each oscillation of the piston. The circular oscillations of the piston are
magnetically coupled through the wall of the measuring chamber to a follower magnet or an electromagnetic pickup which
in turn operates a meter-mounted accessory such as a register or pulse transmitter.
HOUSING
PISTON
MAGNET ASSEMBLY
HOUSING COVER
RETAINING HARDWARE
"O" RING
HOUSING
COVER
CONTROL
ROLLER
Figure 1: Meter Components
Page 5 August 2013
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