Recordall® Combo Meter
Lead-Free Bronze Alloy, Size 8" (DN 200)
NSF/ANSI Standards 61 and 372 Certied
RCO-UM-00077-EN-02 (October 2013)
User Manual
Recordall® Combo Meter, 8"
Page ii October 2013
User Manual
CONTENTS
SCOPE OF THE MANUAL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
PRODUCT INFORMATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Product Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Related Literature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Unpacking and Inspection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Installing the Meter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Performance Checks and System Startup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Shutdown Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
SERVICING PARTS AND ASSEMBLIES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Calibration Check and Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
BYPASS COMPONENTS HEAD ASSEMBLIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Check Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
SPECIFICATIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Page iii October 2013
Recordall® Combo Meter, 8"
Page iv October 2013
User Manual
SCOPE OF THE MANUAL
This manual contains information concerning the installation, operation and maintenance of the 8" Badger Meter® Recordall®
Combo Meter Assembly. To ensure efficient operation of the meters, read and understand the instructions in this manual.
Retain the manual in a location where it is readily available.
PRODUCT INFORMATION
Product Description
The 8" Recordall Combo Meter assembly consists of a stainless steel spool with a bypass port, an 8" Recordall Turbo Series
Meter with AWWA class II measuring chamber, a Model DCA-01 Detector Check Valve with bypass piping, valves, and an M120
Recordall Disc Meter. The meter assembly measures both low flow domestic use and high volume use through a single water
supply line.
Turbine Meter
Water flows into the meter's measuring element, contacting the multi-vaned rotor. Flow readings are obtained by rotor
revolutions transmitted by magnetic drive coupling through the meter's cover plate to the sealed register. Magnetic drive
is achieved by a right angle worm drive, coupling the rotor to a vertical transmission spindle, driving a gear set rotating
the magnet carrier. A ceramic magnet in a carrier rotates around a vertical axis. Rotor rotation is transmitted to the register
gearing through this magnetic coupling.
The turbo measuring element is designed to greatly reduce wear by reducing friction potential between the moving parts
of the rotor and bearing system. Less wear, in this critical area of the design, provides the utility manager with a lower
lifecycle cost for meter application. Throughout the normal operating range of the meter, the rotor floats between the thrust
bearing system.
The detector check valve is a spring-loaded check valve on the downstream side of the clapper that holds the clapper in a
normally closed position. Small water flows bypass the clapper and are registered on the 1-1/2" bypass meter. This allows
for accurate registration of domestic use, leakage or misuse of water. When a major flow is required, the water pressure
overcomes the mechanical advantages of the spring-loaded clapper and pushes it open, permitting full pipe capacity flow. A
small amount of water continues to flow through the bypass when the clapper is fully open.
The bypass line consists of piping with a 1-1/2" Model 120 Recordall Disc Meter, an isolation valve, and a check valve.
Related Literature
• The Recordall Combo Meters Product Data Sheet contains information on operating principle, meter construction, materials,
tolerances and specifications.
• The Recordall Combo Meters Parts List contains illustrations of parts, part numbers, and part descriptions.
Safety Information
The installation of the Recordall Combo meter must comply with all applicable federal, state, and local rules, regulations,
and codes.
Failure to read and follow these instructions can lead to misapplication or misuse of the meter, resulting in personal injury and
damage to equipment.
Unpacking and Inspection
To avoid damage in transit, the Recordall Combo meter assemblies are shipped to the customer in special shipping
containers. Upon receipt of shipment, be sure to follow these unpacking and inspection procedures:
OTE:N If damage to a shipping container is evident upon receipt of a meter, request that a representative of the carrier be
present when the meter is unpacked.
Page 5 October 2013