Emerson Rosemount 2051 Wireless Pressure Transmitters Uživatelský manuál Strana 1

Reference Manual00809-0100-4102, Rev AAMay 2013Rosemount 2051 Wireless Pressure TransmittersPressure, Level, and Flow Solutions with WirelessHART™ Pro

ivReference Manual00809-0100-4102, Rev AATable of ContentsMay 2013Table of Contents AAppendix A: Specifications and Reference DataA.1 Performance Spec

88Reference Manual00809-0100-4102, Rev AASection 6: TroubleshootingMay 2013Troubleshooting6.3 Removing from serviceFollow these steps:1. Follow all pl

Reference Manual 00809-0100-4102, Rev AAAppendix A: Reference DataMay 201389Specifications and Reference DataAppendix A Specifications and Reference D

90Reference Manual00809-0100-4102, Rev AAAppendix A: Reference DataMay 2013Specifications and Reference DataReference Accuracy(1)Total PerformanceMode

91Reference Manual 00809-0100-4102, Rev AAAppendix A: Reference DataMay 2013Specifications and Reference DataLong Term StabilityDynamic PerformanceLin

92Reference Manual00809-0100-4102, Rev AAAppendix A: Reference DataMay 2013Specifications and Reference DataAmbient Temperature Effect per 50°F (28°C)

93Reference Manual 00809-0100-4102, Rev AAAppendix A: Reference DataMay 2013Specifications and Reference DataA.2.2 Range and Sensor LimitsZero and Spa

94Reference Manual00809-0100-4102, Rev AAAppendix A: Reference DataMay 2013Specifications and Reference DataUpdate rateUser selectable, 1 second to 60

95Reference Manual 00809-0100-4102, Rev AAAppendix A: Reference DataMay 2013Specifications and Reference DataRosemount 2051LLimit is flange rating or

96Reference Manual00809-0100-4102, Rev AAAppendix A: Reference DataMay 2013Specifications and Reference DataProcess Temperature LimitsAt atmospheric p

97Reference Manual 00809-0100-4102, Rev AAAppendix A: Reference DataMay 2013Specifications and Reference DataA.4 Physical specificationsA.4.1 Electric

vReference Manual 00809-0100-4102, Rev AATable of ContentsMay 2013Table of Contents CAppendix C: Field Communicator Menu Trees and Fast KeysC.1 Field

98Reference Manual00809-0100-4102, Rev AAAppendix A: Reference DataMay 2013Specifications and Reference DataProcess flanges and adaptersPlated carbon

99Reference Manual 00809-0100-4102, Rev AAAppendix A: Reference DataMay 2013Specifications and Reference DataBoltsPlated carbon steel per ASTM A449, T

100Reference Manual00809-0100-4102, Rev AAAppendix A: Reference DataMay 2013Specifications and Reference DataA.4.6 Shipping Weights for 2051 Wireless

101Reference Manual 00809-0100-4102, Rev AAAppendix A: Reference DataMay 2013Specifications and Reference DataA.5 Dimensional DrawingsDimensions are i

102Reference Manual00809-0100-4102, Rev AAAppendix A: Reference DataMay 2013Specifications and Reference Data(1) Tolerances are 0.040 (1,02), –0.020

103Reference Manual 00809-0100-4102, Rev AAAppendix A: Reference DataMay 2013Specifications and Reference DataA.6 Ordering InformationTable A-6. 205

104Reference Manual00809-0100-4102, Rev AAAppendix A: Reference DataMay 2013Specifications and Reference DataO-ringStandard StandardA Glass-filled PTF

105Reference Manual 00809-0100-4102, Rev AAAppendix A: Reference DataMay 2013Specifications and Reference DataSeal Assemblies(9) Standard StandardS1(7

106Reference Manual00809-0100-4102, Rev AAAppendix A: Reference DataMay 2013Specifications and Reference DataCalibration CertificateStandard StandardQ

107Reference Manual 00809-0100-4102, Rev AAAppendix A: Reference DataMay 2013Specifications and Reference DataRC1/4 RC1/2 Process ConnectionExpandedD9

viReference Manual00809-0100-4102, Rev AATable of ContentsMay 2013Table of Contents

108Reference Manual00809-0100-4102, Rev AAAppendix A: Reference DataMay 2013Specifications and Reference DataTable A-7. 2051T In-Line Pressure Trans

109Reference Manual 00809-0100-4102, Rev AAAppendix A: Reference DataMay 2013Specifications and Reference DataMounting BracketStandard StandardB4 Brac

110Reference Manual00809-0100-4102, Rev AAAppendix A: Reference DataMay 2013Specifications and Reference DataSurface FinishStandard StandardQ16 Surfac

111Reference Manual 00809-0100-4102, Rev AAAppendix A: Reference DataMay 2013Specifications and Reference Data Table A-8. Rosemount 2051L Liqui

112Reference Manual00809-0100-4102, Rev AAAppendix A: Reference DataMay 2013Specifications and Reference DataP 2-in. ANSI/ASME B16.5 Class 600 CS ★E 3

113Reference Manual 00809-0100-4102, Rev AAAppendix A: Reference DataMay 2013Specifications and Reference DataO-ringStandardStandardA Glass-filled PTF

114Reference Manual00809-0100-4102, Rev AAAppendix A: Reference DataMay 2013Specifications and Reference DataToolkit Total System Performance ReportsS

115Reference Manual 00809-0100-4102, Rev AAAppendix A: Reference DataMay 2013Specifications and Reference DataTable A-9. Rosemount 2051CFA Annubar Fl

116Reference Manual00809-0100-4102, Rev AAAppendix A: Reference DataMay 2013Specifications and Reference DataPipe Material / Mounting Assembly Materia

117Reference Manual 00809-0100-4102, Rev AAAppendix A: Reference DataMay 2013Specifications and Reference DataR6 600# RTJ FlangeR9(1)900# RTJ FlangeRF

1Reference Manual 00809-0100-4102, Rev AASection 1: IntroductionMay 2013IntroductionSection 1 IntroductionUsing this manual . . . . . . . . . . . . .

118Reference Manual00809-0100-4102, Rev AAAppendix A: Reference DataMay 2013Specifications and Reference DataOptions (Include with selected model numb

119Reference Manual 00809-0100-4102, Rev AAAppendix A: Reference DataMay 2013Specifications and Reference DataExpandedG1 Needle Valves, Carbon SteelG3

120Reference Manual00809-0100-4102, Rev AAAppendix A: Reference DataMay 2013Specifications and Reference DataTable A-10. Rosemount 2051CFC Compact Fl

121Reference Manual 00809-0100-4102, Rev AAAppendix A: Reference DataMay 2013Specifications and Reference DataTransmitter Housing Material Conduit Ent

122Reference Manual00809-0100-4102, Rev AAAppendix A: Reference DataMay 2013Specifications and Reference DataTransmitter Calibration CertificationStan

123Reference Manual 00809-0100-4102, Rev AAAppendix A: Reference DataMay 2013Specifications and Reference DataTable A-11. Rosemount 2051CFP Integral

124Reference Manual00809-0100-4102, Rev AAAppendix A: Reference DataMay 2013Specifications and Reference Data0250 0.250-in. (6.35 mm) for 1-in. Pipe ★

125Reference Manual 00809-0100-4102, Rev AAAppendix A: Reference DataMay 2013Specifications and Reference DataStandardWP5 Internal Antenna, Compatible

126Reference Manual00809-0100-4102, Rev AAAppendix A: Reference DataMay 2013Specifications and Reference DataTransmitter Calibration CertificationStan

127Reference Manual 00809-0100-4102, Rev AAAppendix A: Reference DataMay 2013Specifications and Reference DataA.7 OptionsStandard configurationUnless

2Reference Manual00809-0100-4102, Rev AASection 1: IntroductionMay 2013Introduction1.2.3 Rosemount 2051L Level Transmitter Measures level and specifi

128Reference Manual00809-0100-4102, Rev AAAppendix A: Reference DataMay 2013Specifications and Reference DataOutput informationOutput range points mus

129Reference Manual 00809-0100-4102, Rev AAAppendix A: Reference DataMay 2013Specifications and Reference DataRosemount 2051C Traditional Flange brack

130Reference Manual00809-0100-4102, Rev AAAppendix A: Reference DataMay 2013Specifications and Reference DataA.8 Spare partsMeter Kit 02051-9020-0001M

Reference Manual 00809-0100-4102, Rev AAAppendix B: Product CertificationsMay 2013131Product CertificationsAppendix B Product CertificationsWireless C

132Reference Manual00809-0100-4102, Rev AAAppendix B: Product CertificationsMay 2013Product CertificationsB.1.5 Ordinary location certification for FM

133Reference Manual 00809-0100-4102, Rev AAAppendix B: Product CertificationsMay 2013Product CertificationsSpecial Conditions for Safe Use (X)The plas

134Reference Manual00809-0100-4102, Rev AAAppendix B: Product CertificationsMay 2013Product Certifications

Reference Manual 00809-0100-4102, Rev AAAppendix C: Field Communicator Menu TreesMay 2013135Field Communicator Menu Trees and Fast KeysAppendix C Fiel

136Reference Manual00809-0100-4102, Rev AAAppendix C: Field Communicator Menu TreesMay 2013Field Communicator Menu Trees and Fast KeysFigure C-2. Rose

137Reference Manual 00809-0100-4102, Rev AAAppendix C: Field Communicator Menu TreesMay 2013Field Communicator Menu Trees and Fast KeysFigure C-3. Ros

3Reference Manual 00809-0100-4102, Rev AASection 1: IntroductionMay 2013Introduction1.3 WirelessHART installation flowchartFigure 1-1. WirelessHART in

138Reference Manual00809-0100-4102, Rev AAAppendix C: Field Communicator Menu TreesMay 2013Field Communicator Menu Trees and Fast KeysFigure C-4. Rose

Reference Manual 00809-0100-4102, Rev AAAppendix D: Network design best practicesMay 2013139Appendix D: Network design best practicesAppendix D Networ

140Reference Manual00809-0100-4102, Rev AAAppendix D: Network design best practicesMay 2013Appendix D: Network design best practicesFor examples and c

Reference Manual00809-0100-4102, Rev AAMay 2013Standard Terms and Conditions of Sale can be found at www.rosemount.com/terms_of_saleThe Emerson logo i

4Reference Manual00809-0100-4102, Rev AASection 1: IntroductionMay 2013Introduction1.4 Transmitter overviewThe Rosemount 2051C Coplanar design is offe

5Reference Manual 00809-0100-4102, Rev AASection 1: IntroductionMay 2013IntroductionFigure 1-3. Block diagram of operation A. Sensor ModuleB. Electron

6Reference Manual00809-0100-4102, Rev AASection 1: IntroductionMay 2013IntroductionNetwork design best practicesWhen mounting the device, recommended

7Reference Manual 00809-0100-4102, Rev AASection 1: IntroductionMay 2013Introduction701PGNKF). Each battery contains approximately 5 grams of lithium.

8Reference Manual00809-0100-4102, Rev AASection 1: IntroductionMay 2013IntroductionThe Power Module contains a primary lithium-thionyl chloride batter

Reference Manual 00809-0100-4102, Rev AASection 2: ConfigurationMay 20139ConfigurationSection 2 ConfigurationOverview . . . . . . . . . . . . . . . .

10Reference Manual00809-0100-4102, Rev AASection 2: ConfigurationMay 2013ConfigurationWarnings ( )2.3 Required bench top configurationBench top config

11Reference Manual 00809-0100-4102, Rev AASection 2: ConfigurationMay 2013Configuration2.3.1 Connection diagrams Bench hook-upConnect the bench equipm

12Reference Manual00809-0100-4102, Rev AASection 2: ConfigurationMay 2013Configuration2.4.2 Join device to networkIn order to communicate with the Sma

13Reference Manual 00809-0100-4102, Rev AASection 2: ConfigurationMay 2013Configuration2.4.4 Set process variable unitsThe PV Unit command sets the pr

14Reference Manual00809-0100-4102, Rev AASection 2: ConfigurationMay 2013ConfigurationTable 2-1. Variable MappingNoteThe variable assigned to the pri

15Reference Manual 00809-0100-4102, Rev AASection 2: ConfigurationMay 2013Configuration2.5.3 Set transmitter percent of range (transfer function)The R

16Reference Manual00809-0100-4102, Rev AASection 2: ConfigurationMay 2013Configuration2.6 Configure for Level and Flow2.6.1 Configuring scaled variabl

17Reference Manual 00809-0100-4102, Rev AASection 2: ConfigurationMay 2013Configurationa. When configuring for level applications, select Linear under

iReference Manual 00809-0100-4102, Rev AARosemount 2051 Wireless Pressure, Flow, and Level SolutionsRead this manual before working with the product.

18Reference Manual00809-0100-4102, Rev AASection 2: ConfigurationMay 2013Configurationrecommended to use the low flow cutoff function in order to have

19Reference Manual 00809-0100-4102, Rev AASection 2: ConfigurationMay 2013Configuration1. Select Manual Setup and click on the HART tab.2. Assign Prim

20Reference Manual00809-0100-4102, Rev AASection 2: ConfigurationMay 2013Configuration2.7 Review configuration dataThe following is a list of factory

21Reference Manual 00809-0100-4102, Rev AASection 2: ConfigurationMay 2013Configuration2.7.3 Review radio informationTo view radio information:1. From

22Reference Manual00809-0100-4102, Rev AASection 2: ConfigurationMay 2013Configuration2.8 Configuring the LCD displayThe LCD Display configuration com

23Reference Manual 00809-0100-4102, Rev AASection 2: ConfigurationMay 2013Configuration2.9 Detailed transmitter setup2.9.1 Configure process alertsPro

24Reference Manual00809-0100-4102, Rev AASection 2: ConfigurationMay 2013Configuration2051 Wireless pressure transmitter, damping only takes effect wh

25Reference Manual 00809-0100-4102, Rev AASection 2: ConfigurationMay 2013Configuration2.10.1 Device reset The master reset function will reset the de

26Reference Manual00809-0100-4102, Rev AASection 2: ConfigurationMay 2013Configuration2.10.3 Number of available neighbors Viewing number of available

27Reference Manual 00809-0100-4102, Rev AASection 2: ConfigurationMay 2013Configuration2.11 Advanced Functions for HART Protocol2.11.1 Saving, Recalli

iiReference Manual 00809-0100-4102, Rev AAExplosions could result in death or serious injury: Installation of this transmitter in an explosive environ

28Reference Manual00809-0100-4102, Rev AASection 2: ConfigurationMay 2013ConfigurationWhen finished, the Field Communicator informs you of the status.

Reference Manual 00809-0100-4102, Rev AASection 3: InstallationMay 201329InstallationSection 3 InstallationOverview . . . . . . . . . . . . . . . . .

30Reference Manual00809-0100-4102, Rev AASection 3: InstallationMay 2013Installation3.2.1 Warnings ( )Failure to follow these installation guidelines

31Reference Manual 00809-0100-4102, Rev AASection 3: InstallationMay 2013Installation3.3 Considerations3.3.1 Installation considerationsMeasurement pe

32Reference Manual00809-0100-4102, Rev AASection 3: InstallationMay 2013InstallationInternal antenna positionThe internal antenna is designed for mult

33Reference Manual 00809-0100-4102, Rev AASection 3: InstallationMay 2013InstallationFigure 3-2. Installation Flowchart3.3.5 Draft range consideration

34Reference Manual00809-0100-4102, Rev AASection 3: InstallationMay 2013InstallationTilting of the transmitter may cause a zero shift in the transmitt

35Reference Manual 00809-0100-4102, Rev AASection 3: InstallationMay 2013Installation3.4 Installation proceduresFor dimensional drawing information re

36Reference Manual00809-0100-4102, Rev AASection 3: InstallationMay 2013InstallationEnvironmental seal for housingAlways ensure a proper seal by insta

37Reference Manual 00809-0100-4102, Rev AASection 3: InstallationMay 2013InstallationFigure 3-5. Mounting bracket option code B4A. 5/16 x 11/2 Bolts f

iiiReference Manual 00809-0100-4102, Rev AAShipping considerations for wireless products (Lithium Batteries: Green Power Module, model number 701PGNKF

38Reference Manual00809-0100-4102, Rev AASection 3: InstallationMay 2013InstallationBolt installationOnly use bolts supplied with the Rosemount 2051 o

39Reference Manual 00809-0100-4102, Rev AASection 3: InstallationMay 2013InstallationFigure 3-7. Mounting bolts and bolt configurations for coplanar f

40Reference Manual00809-0100-4102, Rev AASection 3: InstallationMay 2013InstallationFigure 3-9. Panel mounting bracket option codes B2 and B8Figure 3-

41Reference Manual 00809-0100-4102, Rev AASection 3: InstallationMay 2013Installation3.4.2 Impulse pipingBest practicesThe piping between the process

42Reference Manual00809-0100-4102, Rev AASection 3: InstallationMay 2013InstallationMounting RequirementsRefer to Figure 3-11 on page 43 for examples

43Reference Manual 00809-0100-4102, Rev AASection 3: InstallationMay 2013InstallationFigure 3-11. Installation examplesA. Drain/vent valves3.4.3 Proce

44Reference Manual00809-0100-4102, Rev AASection 3: InstallationMay 2013Installation1. Remove the flange bolts.2. Leaving the flange in place, move th

45Reference Manual 00809-0100-4102, Rev AASection 3: InstallationMay 2013InstallationFigure 3-12. Inline gage low side pressure portA. Low side pressu

46Reference Manual00809-0100-4102, Rev AASection 3: InstallationMay 2013InstallationTo make connections, perform the following procedure:1. Remove the

47Reference Manual 00809-0100-4102, Rev AASection 3: InstallationMay 2013InstallationFigure 3-14. Optional LCD Display3.5 Rosemount 304, 305 and 306 i

ivReference Manual 00809-0100-4102, Rev AA

48Reference Manual00809-0100-4102, Rev AASection 3: InstallationMay 2013InstallationFigure 3-15. Integral Manifold DesignsA. 2051C and 304 Conventiona

49Reference Manual 00809-0100-4102, Rev AASection 3: InstallationMay 2013InstallationFigure 3-16. Bolt tightening pattern3. If the PTFE sensor module

50Reference Manual00809-0100-4102, Rev AASection 3: InstallationMay 2013InstallationNoteIf using thread tape, be sure the thread tape does not strip w

51Reference Manual 00809-0100-4102, Rev AASection 3: InstallationMay 2013InstallationDrain/VentValveDrain/Vent ValveEqualize(closed)ProcessIsolate(ope

52Reference Manual00809-0100-4102, Rev AASection 3: InstallationMay 2013InstallationFive-valve Natural Gas configurations shown:NoteDo not open the lo

53Reference Manual 00809-0100-4102, Rev AASection 3: InstallationMay 2013Installation3. Open the equalize valve on the low pressure (downstream) side

54Reference Manual00809-0100-4102, Rev AASection 3: InstallationMay 2013Installation

Reference Manual 00809-0100-4102, Rev AASection 4: CommissioningMay 201355CommissioningSection 4 CommissioningSafety messages . . . . . . . . . . . .

56Reference Manual00809-0100-4102, Rev AASection 4: CommissioningMay 2013Commissioning4.2.1 Warnings ( )Failure to follow these installation guideline

57Reference Manual 00809-0100-4102, Rev AASection 4: CommissioningMay 2013Commissioning4.3 Viewing network statusIf the Rosemount 2051 Wireless was co

iReference Manual 00809-0100-4102, Rev AATable of ContentsMay 2013Table of Contents 1Section 1: Introduction1.1 Using this manual. . . . . . . . . . .

58Reference Manual00809-0100-4102, Rev AASection 4: CommissioningMay 2013CommissioningFigure 4-1. Diagnostic Screen SequenceFigure 4-2. Network Join S

59Reference Manual 00809-0100-4102, Rev AASection 4: CommissioningMay 2013CommissioningFigure 4-3. Smart Wireless Gateway Explorer page. AMS Suite Wir

60Reference Manual00809-0100-4102, Rev AASection 4: CommissioningMay 2013CommissioningFigure 4-5. Smart Wireless Gateway Network Settings4.4.1 Using t

61Reference Manual 00809-0100-4102, Rev AASection 4: CommissioningMay 2013CommissioningTable 4-1. Rosemount 2051 Wireless Fast Key SequenceFigure 4-6

62Reference Manual00809-0100-4102, Rev AASection 4: CommissioningMay 2013CommissioningConfiguring HART Lock using Field CommunicatorConfiguring HART L

63Reference Manual 00809-0100-4102, Rev AASection 5: Operation and MaintenanceMay 2013Operation and maintenanceSection 5 Operation and maintenanceOve

64Reference Manual00809-0100-4102, Rev AASection 5: Operation and MaintenanceMay 2013Operation and maintenanceTable 5-1. Recommended Calibration Task

65Reference Manual 00809-0100-4102, Rev AASection 5: Operation and MaintenanceMay 2013Operation and maintenanceFor transmitters that are field install

66Reference Manual00809-0100-4102, Rev AASection 5: Operation and MaintenanceMay 2013Operation and maintenanceSample calculation for 2051 (0.04% accur

67Reference Manual 00809-0100-4102, Rev AASection 5: Operation and MaintenanceMay 2013Operation and maintenanceExampleA range 4 differential pressure

iiReference Manual00809-0100-4102, Rev AATable of ContentsMay 2013Table of Contents2.6.2 Re-Mapping device variables . . . . . . . . . . . . . . . .

68Reference Manual00809-0100-4102, Rev AASection 5: Operation and MaintenanceMay 2013Operation and maintenanceposition. Since this correction maintain

69Reference Manual 00809-0100-4102, Rev AASection 5: Operation and MaintenanceMay 2013Operation and maintenanceNoteUse a pressure input source that is

70Reference Manual00809-0100-4102, Rev AASection 5: Operation and MaintenanceMay 2013Operation and maintenance5.4.3 Recall Factory Trim—Sensor TrimThe

71Reference Manual 00809-0100-4102, Rev AASection 5: Operation and MaintenanceMay 2013Operation and maintenanceZero Effect:± 0.1% of the upper range l

72Reference Manual00809-0100-4102, Rev AASection 5: Operation and MaintenanceMay 2013Operation and maintenanceTo calculate the low trim (LT) value: To

73Reference Manual 00809-0100-4102, Rev AASection 5: Operation and MaintenanceMay 2013Operation and maintenance5.5 LCD Screen Messages5.5.1 Startup Sc

74Reference Manual00809-0100-4102, Rev AASection 5: Operation and MaintenanceMay 2013Operation and maintenanceSV Screen - sensor temperature valueTV S

75Reference Manual 00809-0100-4102, Rev AASection 5: Operation and MaintenanceMay 2013Operation and maintenance5.5.2 Diagnostic Button Screen Sequence

76Reference Manual00809-0100-4102, Rev AASection 5: Operation and MaintenanceMay 2013Operation and maintenance5.5.3 Network Diagnostic Status ScreensT

77Reference Manual 00809-0100-4102, Rev AASection 5: Operation and MaintenanceMay 2013Operation and maintenanceDiagnostic Button Screen 4.4: the devic

iiiReference Manual 00809-0100-4102, Rev AATable of ContentsMay 2013Table of Contents3.5.1 Rosemount 305 Integral Manifold installation procedure . .

78Reference Manual00809-0100-4102, Rev AASection 5: Operation and MaintenanceMay 2013Operation and maintenanceDiagnostic Button Screen 4.9: the device

79Reference Manual 00809-0100-4102, Rev AASection 5: Operation and MaintenanceMay 2013Operation and maintenance5.5.4 Device Diagnostic ScreensThe foll

80Reference Manual00809-0100-4102, Rev AASection 5: Operation and MaintenanceMay 2013Operation and maintenanceQV Screen - voltage reading at the power

81Reference Manual 00809-0100-4102, Rev AASection 5: Operation and MaintenanceMay 2013Operation and maintenanceDiagnostic Button Screen 7.1: the termi

82Reference Manual00809-0100-4102, Rev AASection 5: Operation and MaintenanceMay 2013Operation and maintenanceNoteUse the Rosemount Wireless LCD Part

Reference Manual 00809-0100-4102, Rev AASection 6: TroubleshootingMay 201383TroubleshootingSection 6 Troubleshooting Overview . . . . . . . . . . . .

84Reference Manual00809-0100-4102, Rev AASection 6: TroubleshootingMay 2013Troubleshooting6.2.1 Warnings ( )Table 6-1. Rosemount 2051 Wireless Device

85Reference Manual 00809-0100-4102, Rev AASection 5: TroubleshootingMay 2013TroubleshootingPressure has Exceeded LimitsThe sensor has exceeded the max

86Reference Manual00809-0100-4102, Rev AASection 6: TroubleshootingMay 2013TroubleshootingLO Alarm The primary variable has surpassed the user defined

87Reference Manual 00809-0100-4102, Rev AASection 5: TroubleshootingMay 2013TroubleshootingTable 6-2. Rosemount 2051 Wireless TroubleshootingTable 6-