CCP 05-19-1997 - Laserfiche WebLink

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I' I ,. TECHNICAL SPECIFICA nONS CITY OF ARDEN HILLS, MINNESOTA I 1. Cold Water Meter Specifications- Displacement Type With Radio Frequency Transmitters I 1.1 TYPE: Magnetic Drive, Sealed Register, Positive Displacement Type or approved equal. I 1.2 SIZE: Must conform to American Water Works Standard C-700 as most recently revised. I 1.3 LENGTH: Must conform to American Water Works Standard C-700 as most recently revised. 1.4 CASES: All 5/S" X 3/4" meters shall have a non-corrosive waterworks bronze outer case with a I separate measuring chamber which can easily be removed from the case. All 3/4" and larger meters shall have a non-corrosive waterworks bronze outer case with a separate measuring chamber which I can easily be removed from the case. All meters shall have cast on them, in raised characters, the size and direction of water flow through the meter. The manurncturer's serial number must be permanently affixed to the maincase to aid in identification and must be visible so that it can be read Ie from directly above the water meter. 1.5 EXTERNAL BOLTS AND WASHERS: All external bolts and washers shall be of corrosion I resistant material and be easily removed from the maincase. All threaded maincase bolt holes must be covered, to aid in removal of the bolts for repair. I 1.6 ELECTRONIC ENCODED REGISTER: The register must be of the straight reading type and have a full test dial on the face of the register. It shall read in gallons, and be capable of direct visual reading at the meter. All reduction gearing shall be contained in a I permanently, hermetically sealed, tamperproof enclosure made of glass and brass materials to ensure a permanent seal against moisture, even when in a submersed environment. I The meter register shall be provided with a two wire connection. The connection between the meter register and the radio frequency remote transponder shall be accomplished with the use of 10 feet of I shielded 2 conductor wire. All register/transmitter connections shall be factory pre-wired. The register shall transmit directly to the remote radio frequency transponder. Water flow through the meter shall be digitally encoded using a piezo electric switch. Resolution of the piezo switch shall he I l/IOth of the meter test circle. The electronic encoded register must be compatible with the CellNet System currently used by NSP I and the Itron System currently used by Minnegasco. Proof of compatibility shall be provided. Due to their tendency for excessive wear, mechanical encoders are not acceDtable. ,. I