United States Nuclear Regulatory Commission - Protecting People and the Environment


ACCESSION #: 9805010007



Rosemount Nuclear Instruments      Rosemount Nuclear Instruments, Inc.

                                   12001 Technology Drive

                                   Eden Prairie, MN 55344 USA

                                   Tel 1 (612) 828-8252

                                   Fax 1 (612) 828-8280

28 April 1998



Re:  Notification under 10 CFR Part 21 for Rosemount Model 1154 Alphaline

Nuclear Pressure Transmitter, Range Code 0, Drift Specification



Pursuant to 10CFR Part 21 Paragraph 21.21 (b), Rosemount Nuclear

Instruments, Inc. (RNII) is writing to inform you that the drift

specification for Model 1154, gage pressure transmitters, range code 0,

is not correctly described in Manual MAN 4514, December 1992.  Manual MAN

4514, December 1992, page 4-1, Drift is incorrectly stated as +/-0.2% of

upper range limit for 30 months.  The correct specification is +/-0.3% of

upper range limit for 30 months.



The Product Data Sheet for Model 1154, #00813-0100-4514, November 1995,

page 4, Drift, shows +/-0.2% of upper range limit for thirty months (+/-

0.3% of upper range limit for range 0).  This is the correct drift

specification for this model, since +/-0.2% of upper range limit applies

to all range codes other than range code 0.



This notice does not apply to other Model 1154 gage pressure

transmitters, nor to any Model 1154 differential or high line

differential pressure transmitters.  Moreover, it does not apply to any

Model 1152, 1153 Series B or D transmitters.



The design and qualification of Model 1154 Range Code 0 is based on

design and qualification of Rosemount Model 1153 Series D Alphaline

Nuclear Pressure Transmitter, In turn, Model 1153 Series D design and

qualification references Model 1153GD0, whose qualification is documented

in Rosemount Report 78215.  The range code 0 sensor module is designed to

operate between 0 and 6000 psi.  However, the specified upper range limit

on model 1154 range code 0 pressure transmitter is 4000 psig.  This means

the specified upper range limit on range code 0 is actually "ranged down"

from its design limits.  There are "range-down" effects associated with

operating the transmitter at levels lower than the design limit.  More

specifically, the transmitter gain must be turned up in order to

calibrate the transmitter from 0 to 4000 psig, which amplifies any zero

errors.  This means that some of the errors in performance, including

drift, must be magnified by the "range-down multiplier" of 1.5.  The

correct drift specification for range code 0 is +/-0.3% of upper range

limit as properly indicated in Product Data Sheet for Model 1154, #00813-

0100-4514, November 1995.



FISHER-ROSEMOUNT



10CFR21 Notification

27 April 1998

Page 2 of 3



1.0  Name and address of the individual providing the information:



     Mr. Jeffrey W. Schmitt

     Vice President & General Manager

     Rosemount Nuclear Instruments, Inc.

     12001 Technology Drive

     Eden Prairie, MN 55344



2.0  Identification of items supplied:



     Model 1154 Alphaline Pressure Transmitter

     Range Code 0 gage pressure



3.0  Identification of firm supplying the item:



     Rosemount Nuclear Instruments, Inc.

     12001 Technology Drive

     Eden Prairie, MN 55344



4.0  Nature of the failure and potential safety hazard:



     This notification relates to the incorrect statement of drift

     specification in Manual MAN 4514, December 1992, page 4-1 under

     Drift for Model 1154 Alphaline Pressure Transmitter for Nuclear

     Service.



     RNII does not have sufficient information to determine the safety

     impact related to plant applications.  Licensees must determine the

     impact on plant operations and plant safety and take action as

     deemed necessary.



FISHER-ROSEMOUNT



10CFR21 Notification

27 April 1998

Page 3 of 3



5.0  The corrective action which is taken, the name of the individual or

organization responsible for that action and the length of time taken to

complete that action;



     Until such time as the manual containing the error is fully revised,

     errata sheets will be issued and included in all future shipments of

     current revision (December 1992) 1154 Manuals, stating the correct

     drift specification to be +/-0.2% of upper range limit for thirty

     months (+/-0.3% of upper range limit for range 0).  Additional

     errata sheets will be made available for users requesting them to

     include in 1154 manuals already shipped from RNII.



     The above actions will be completed within 6 months of this

     notification.



     No further action related to this issue is expected.  Mr. Schmitt is

     responsible should any further action related to this issue be

     necessary.



6.0  Any advice related to the potential failure of the item;



     The end user must determine the full scope of this nonconformance as

     it relates to plant operations and plant safety and take action as

     deemed necessary.



Rosemount Nuclear Instruments, Inc. has a strong commitment to the

nuclear industry and assures you that we are dedicated to the supply of

high quality products and services to our customers.  We are sorry for

any inconvenience.  If there are any questions, or you require additional

information related to this issue, please contact Jerry Edwards (612)

828-3951, Mike Dougherty at (612) 828-8250 or Gerard Hanson at (612) 828-

3480.



Sincerely,



ROSEMOUNT NUCLEAR INSTRUMENTS, INC.



Jeffrey W. Schmitt

Vice President & General Manager



FISHER-ROSEMOUNT



                               Attachment

             10CFR Part 21-Notification dated 29 April 1998

                       Baltimore Gas and Electric



P.O. Number                   Model Number             Serial Number



97002GX                       1154GP0RC                0509259

97002GX                       1154GP0RC                0509260

97002GX                       1154GP0RC                0509266

97002GX                       1154GP0RC                0510022

14458GX                       1154GP0RC                0511121

15172                         1154GP0RC                0514216



                               Attachment

             10CFR Part 21-Notification dated 29 April 1998

                      Maine Yankee Atomic Power Co.



P.O. Number                   Model Number             Serial Number



96-03801                      1154GP0RA                0512978

96-03801                      1154GP0RA                0512983



GENERAL INFORMATION or OTHER                      EVENT NUMBER: 34142



LICENSEE: ROSEMOUNT NUCLEAR INSTRUMENTS    NOTIFICATION DATE: 04/28/98

    CITY: EDEN PRAIRIE        REGION: 3    NOTIFICATION TIME: 14:15 [ET]

  COUNTY:                      STATE: MN   EVENT DATE:        04/28/98

LICENSE#:                  AGREEMENT: N    EVENT TIME:        14:15 [CDT]

  DOCKET:                                  LAST UPDATE DATE:  04/28/98



                                                  NOTIFICATIONS



                                             HAROLD GRAY         RDO



NRC NOTIFIED BY: JEFF SCHMITT                VERN HODGE, NRR     FAX

HQ OPS OFFICER:  JOHN MacKINNON



EMERGENCY CLASS: NOT APPLICABLE

10 CFR SECTION:

CCCC 21.21          UNSPECIFIED PARAGRAPH



                               EVENT TEXT



10CFR PART 21 REPORT - ROSEMOUNT MODEL 1154 ALPHALINE NUCLEAR GAGE

PRESSURE TRANSMITTERS, RANGE CODE 0, DRIFT SPECIFICATION VALUE IS

SUPPOSED TO BE +/-0.03% INSTEAD OF +/-0.02%.



ROSEMOUNT NUCLEAR INSTRUMENTS, INC (RNII) REPORTED THAT THE DRIFT

SPECIFICATION FOR ROSEMOUNT MODEL 1154, ALPHALINE NUCLEAR GAGE

PRESSURE

TRANSMITTERS, RANGE CODE 0, IS NOT CORRECTLY DESCRIBED IN MANUAL

MAN

4514, DECEMBER 1992.  MANUAL MAN 4514, DECEMBER 1992, PAGE 4-1, "DRIFT"

IS INCORRECTLY STATED AS +/-0.2% OF UPPER RANGE LIMIT FOR 30 MONTHS. 

THE

CORRECT SPECIFICATION IS +/-0.3% OF UPPER RANGE LIMIT FOR 30 MONTHS.



THIS 10CFR PART 21 REPORT DOES NOT APPLY TO OTHER MODEL 1154 GAGE

PRESSURE TRANSMITTERS, NOR TO ANY MODEL 1154 DIFFERENTIAL OR HIGH

LINE

DIFFERENTIAL TRANSMITTERS.  MOREOVER, IT DOES NOT APPLY TO ANY

MODEL

1152, OR MODEL 1153 SERIES B OR D TRANSMITTERS.



FISHER-ROSEMOUNT                   Rosemount Nuclear Instruments, Inc.

                                   12001 Technology Drive

                                   Eden Prairie, MN  55344-3695

                                   USA



DATE:     April 28, 1998                PAGE(S) INCLUDING LEAD SHEET: 6



               TO                                      FROM



COMPANY:       NRC                      FAX NUMBER:    (612) 828-8280



ATTENTION:     Document Control Desk    SENDER:        Jeff Schmitt



FAX NUMBER:    (301) 816-5151           PHONE NUMBER:  (612) 828-3432



SUBJECT:       Part 21 Notice



CC:



*** END OF DOCUMENT ***



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