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Contents

Section 1 – General Information

 ................................................................................................................. Page 2

Return Procedures ......................................................................................................................................... Page 2

Section 2 – Service

 ....................................................................................................................................... Page 3

Section 3 – Troubleshooting Guide

 ............................................................................................................ Page 9

Section 4 – Maintenance and Calibration Record

 ................................................................................... Page 10

Section 5 – Related Publications

 ...............................................................................................................Page 11

MANUAL

Smith Meter

®

 Turbine Meters

Service Manual

Models 4" through 24" Sentry Turbine Meters

Bulletin MN02004 Issue/Rev 0.3 (8/02)

Summary of Contents for Smith Meter

Page 1: ...on 2 Service Page 3 Section 3 Troubleshooting Guide Page 9 Section 4 Maintenance and Calibration Record Page 10 Section 5 Related Publications Page 11 MANUAL Smith Meter Turbine Meters Service Manual Models 4 through 24 Sentry Turbine Meters Bulletin MN02004 Issue Rev 0 3 8 02 ...

Page 2: ...pressure fluctuations and that there is proper system back pressure 5 Check valve operation in the system 6 Check for air in the system After all other accessories have been checked and found to be operating normally the turbine meter should be checked Before beginning any service procedure stop product flow drain the line in the direction of flow if possible and relieve the pressure from the syst...

Page 3: ...nterclockwise Figure 1 Figure 1 5 Remove pick up coil from meter by turning counterclockwise Figure 2 6 Check resistance of coil nominal dc coil resistance 1 020 Ω to determine if coil is faulty 7 For reassembly reverse procedure Figure 2 Caution Tighten pick up coil finger tight Over tightening will result in damage to coil Removal and Replacement of Preamplifier With Meter in Product Line 1 Remo...

Page 4: ...ertain tube bundle is clean and free from damage 6 If necessary to remove pick up coil and preamplifier refer to procedures outlined above 7 Remove cotter pin and slotted nut from downstream end of meter Figures 7 and 8 Figure 7 Figure 8 8 Remove downstream stator Figure 9 In a unidirectional turbine meter the stator is located by a Woodruff key Care should be taken that the Woodruff key is not lo...

Page 5: ...in most cases Bearing wear is minimal and bearing replacement is usually required only due to damaged surfaces 11 Should rotor bearing require replacing it is suggested that rotor assembly be returned to Measurement Solutions for rework See Return Procedures Page 2 Rotor bearing replacement can be done in the field by the following repair procedure a With proper tool and fixture Figure 12 the old ...

Page 6: ... 2 22 in lb 6 8 5 6 18 UNC 2 8 ft lb 10 12 1 2 13 UNC 2 32 ft lb 16 3 4 16 UNF 2 120 ft lb 18 7 8 14 UNF 2 115 ft lb 20 1 12 UNF 2 170 ft lb 24 1 1 4 12 UNF 2 250 ft lb 3 Apply blueing or similar compound to downstream side of rotor hub that matches O D of stator Figure 15 Rotor is marked IN on upstream side of rotor 4 Slip platform bearing on shaft with approximately 1 4 of shaft showing Lubricat...

Page 7: ... ring This condition will affect meter linearity and may be corrected by repositioning rotor bearing in rotor Repositioning is accomplished in ac cordance with procedures in Step 11 Page 5 This procedure can be repeated from the opposite side for a bidirectional turbine meter Figure 17 10 Place turbine meter in horizontal position Figure 18 Hold either up or downstream stator and move internal lat...

Page 8: ...coil is tight If coil is tight and results are still not satisfactory and assuming prover is functioning properly it may be necessary to recheck rotor and platform bearing for possible damage during installation Proving the meter should be under the same conditions of flow rate pressure temperature and liquid characteristics as exist during normal opera tion of the meter For meter proving procedur...

Page 9: ...that shield is grounded at instrument end only Decrease sensitivity on instrument front end Add suppression circuit to preamplifier Non Repeatability Damaged or missing blade Replace rotor Electrical noise interference See Underdelivery Damaged thrust washer Replace Deposits on the bearings Clean or use slofted bearings Plugged stator fin holes Clean Problems with the prover Check prover operation...

Page 10: ...ter No Serial No Product Flow Rate K Factor Date Proved By Remarks Meter No Serial No Product Flow Rate K Factor Date Proved By Remarks Meter No Serial No Product Flow Rate K Factor Date Proved By Remarks Meter No Serial No Product Flow Rate K Factor Date Proved By Remarks Maintenance and Calibration Record ...

Page 11: ...ference the appropriate bulletin number and title Turbine Meters Manual 4 thru 24 Sentry Series Installation Operation MN02003 Specifications 4 thru 20 Sentry Series SS02001 Flow Straightening Assemblies SS02007 Preamplifier PA 6 SS02012 Parts Lists 4 Sentry Series PO02013 6 Low Flow Sentry Series Model K2DF PO02014 6 Sentry Series PO02015 8 Sentry Series Model K2DH K2DT PO02016 10 Sentry Series M...

Page 12: ...Changed Preamplifier from PA 4 to PA 6 throughout document The specifications contained herein are subject to change without notice and any user of said specifications should verify from the manufacturer that the specifications are currently in ef fect Otherwise the manufacturer assumes no responsibility for the use of specifications which may have been changed and are no longer in effect Contact Info...

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