Badger Meter Recordall Compound Series Meters - Manual (Page 7)

Installing the Meter
Overall dimensions and laying lengths of each meter size are listed in the Recordall Combo Meter Product Data Sheet . Review
the dimensional requirements, choose an installation point in the piping, and proceed as follows:
1 . Measure precisely the overall length of the Combo Meter Assembly with gaskets attached to the inlet and outlet
flange connections .
2 . Provide proper gap length in service piping .
3 . Install meter in the pipeline so that the flow arrow on the meter housing points in the same direction as water flow .
4 . With the assembly and gaskets in place, tighten flange connection bolts .
5 . To relieve possible strain on the piping, position a meter support under the meter housing where appropriate .
TURBINE METERS MUST OPERATE IN A COMPLETELY FILLED LINE AT ALL TIMES. THE DOWNSTREAM PIPING MUST
ALWAYS BE ARRANGED TO PROVIDE SUFFICIENT BACK PRESSURE TO MAINTAIN A FULL LINE AT THE METER. BY
ELIMINATING AIR IN THE LINE, AS WELL AS SUDDEN FLOW SURGES, INACCURATE REGISTRATION AND DAMAGE TO THE
TURBINE MECHANISM CAN BE AVOIDED.
Performance Checks and System Startup
Any valves or devices controlling the flow of water through a Combo Meter Assembly must always be opened and closed
slowly to prevent shock loads that may damage the meter's rotor assembly .
Complete the following checks to ensure that a meter assembly is properly installed and operational:
1 . After opening the vent screw 3 turns on the strainer and check valve (if applicable), slowly open the upstream valve to
apply water pressure to the meter and check to see if there are any leaks . Continue venting until a steady water stream
is visible . Tighten the vent screw . Tighten the flange bolts as required .
2 . Perform a functional test of the meter . Slowly open the valve on the downstream (consumer) side of the meter to
evacuate any air that may still be trapped in the service line . When air has been eliminated, increase the demand flow
rate by further opening the downstream valve or valves . Observe the register for correct direction of the flow . The large
test pointer will now move in the proper direction . Now open all applicable service valves . Finally, close the bypass
valves completely .
3 . Check the flow rate to verify the flow does not exceed the maximum continuous duty specification, as defined in
“SPECIFICATIONS” on page 13 . The rate of flow can be quickly checked by timing the quantity registered through the
meter in one minute .
Shutdown Instructions
If the Combo Meter Assembly is to be shut down for an extended period of time or if it is being removed from service,
Badger Meter recommends that all components be thoroughly flushed to prevent the settling out of undissolved solids or the
accumulation of corrosive deposits . The strainer should be flushed at this time .
User Manual
Page 7 October 2013