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Reference Manual

00809-0100-4848, Rev AA

July 2009

6-3

Rosemount 848T Wireless

Table 6-2. Wireless Network

Troubleshooting

Supply Voltage
Failure

The supply voltage is too low for the
device to function properly.

1. Replace the Power Module.

Supply Voltage
Out of Range

Low supply voltage may affect the
operation of the device.

1. Replace the Power Module.

High Power
Active

The device is operating in a high
power mode ideal for configuration
situations. If the device is
self-powered, using the high power
mode for long periods of time will
significantly reduce the life of the
Power Module.

1. When configuring the device,

activate high power mode.

2. Upon completion of configuration,

disable high power mode.

Device Status

Description

Recommended Actions

Symptom

Recommended Actions

Device not joining the

network

Verify Network ID and Join Key
Wait longer (30 min.)
Enable High Speed Operation on Smart Wireless Gateway
Check the Power Module
Verify the device is within range of at least one other device
Verify network is in active network advertise
Power Cycle device to try again
Verify device is configured to join. Send the “Force Join”
command to the device
See the Troubleshooting section of the Smart Wireless Gateway
manual for more information.

Short Battery Life

Check that “Power Always On” mode is off
Verify the device is not installed in extreme temperatures
Verify that the device is not a network pinch point
Check for excessive network rejoins from poor connectivity

Limited Bandwidth Error

Reduce the Update Rate on the transmitter
Increase communication paths by adding more wireless points

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Содержание 848T

Страница 1: ...www rosemount com Reference Manual 00809 0100 4848 Rev AA July 2009 Rosemount 848T Wireless Temperature Transmitter ...

Страница 2: ......

Страница 3: ...erformance make sure to thoroughly understand the contents before installing using or maintaining this product The United States has two toll free assistance numbers and two international numbers Customer Central United States 1 800 999 9307 Asia Pacific 65 77 8211 Europe Middle East Africa 49 8153 9390 National Response Center 1 800 654 7768 24 hours a day Equipment service needs The products des...

Страница 4: ... the wireless device enclosure Care must be taken during transportation to and from the point of installation to prevent electrostatic charge build up Process leaks may cause harm or result in death Install and tighten process connectors before applying pressure Electrical shock can result in death or serious injury Avoid contact with the leads and terminals High voltage that may be present on lea...

Страница 5: ...2 Connection Diagrams 2 2 Default Settings 2 3 Device Network Configuration 2 3 Join Device to Network 2 3 Configure Update Rate 2 4 Sensor Configuration 2 4 Configure Sensor Type 2 4 Configure Engineering Units 2 4 Removing the Power Module 2 4 Advanced Configuration Optional 2 5 Configure Process Alerts 2 5 Device Temperature Engineering Units 2 6 Write Protect 2 6 AC Power FIlter 2 6 HART Tag 2...

Страница 6: ... Spare Parts 5 3 SECTION 6 Troubleshooting Safety Messages 6 1 Warnings 6 1 General Information 6 2 APPENDIX A Specifications and Reference Data Specifications A 1 Functional Specifications A 1 Physical Specifications A 1 Performance Specifications A 2 Accuracy A 3 Ambient Temperature Effect A 4 Dimensional Drawings A 5 Ordering Information A 6 APPENDIX B Product Certifications Approved Manufactur...

Страница 7: ...integrity are maintained Care should be taken to prevent thermal electrical or mechanical damage Contacts should be protected to prevent premature discharge Battery hazards remain when cells are discharged Power modules should be stored in a clean and dry area For maximum life storage temperature should not exceed 30 C Failure to follow these installation guidelines could result in death or seriou...

Страница 8: ...iguration Default Settings Device Network Configuration Sensor Configuration Advanced Configuration Section 3 Mounting Wireless Considerations Sensor Connections Physical Installation 4 20 Milliamp Inputs Section 4 Commissioning Insert Power Module Network Status Verify Operation Section 5 Operation and Maintenance Calibration Power Module Replacement Section 6 Troubleshooting General Information ...

Страница 9: ...ure With simple HART configuration the Rosemount 848T Wireless converts the low level sensor signal to a wireless enabled signal Commissioning The transmitter can be commissioned before or after installation It may be useful to commission it on the bench before installation to ensure proper operation and to become familiar with its functionality When applicable make sure the instruments are instal...

Страница 10: ...azardous locations certifications Temperature Effects The transmitter will operate within specifications for ambient temperatures between 40 and 185 F 40 and 85 C NOTE Consider moving the transmitter to thermally isolate it if the ambient temperature is outside the specification limit RETURN OF MATERIALS To expedite the return process in North America call the Emerson Process Management National R...

Страница 11: ...S Department of Transportation and are also covered by IATA International Air Transport Association ICAO International Civil Aviation Organization and ARD European Ground Transportation of Dangerous Goods It is the responsibility of the shipper to ensure compliance with these or any other local requirements Please consult current regulations and requirements before shipping PRODUCT RECYCLING DISPO...

Страница 12: ...Reference Manual 00809 0100 4848 Rev AA July 2009 Rosemount 848T Wireless 1 6 ...

Страница 13: ...sive atmosphere make sure the instruments are installed in accordance with intrinsically safe or non incendive field wiring practices Verify that the operating atmosphere of the transmitter is consistent with the appropriate hazardous locations certifications Process leaks could result in death or serious injury Do not remove the thermowell while in operation Install and tighten thermowells and se...

Страница 14: ...working correctly When using a Field Communicator any configuration changes made must be sent to the transmitter using the Send key F2 AMS configuration changes are implemented by clicking the Apply button AMS Wireless Configurator AMS is capable of connecting to devices directly using a HART modem or wirelessly using the Smart Wireless Gateway When configuring the device double click the device i...

Страница 15: ...wires from the transmitter to the host system 1 From the Home screen select 2 Configure 2 Select 1 Guided Setup 3 Select 1 Join Device to Network Using a Field Communicator or AMS enter the Network ID and Join Key so they match the Network ID and Join Key of the Smart Wireless Gateway and other devices in the network If the Network ID and Join Key do not match the Gateway the transmitter will not ...

Страница 16: ...he Home screen select 2 Configure 2 Select 1 Guided Setup 3 Select 3 Configure Sensors 4 Select 1 Configure Sensor Type Connection Each input can be configured on the 848T for different sensor types Select the desired sensor type and lead wires for each sensor input If an input is not being used Not Used should be selected for the sensor type Refer to the Sensor Wiring Diagram Figure 3 4 on page 3...

Страница 17: ...reen select 2 Configure 2 Select 1 Guided Setup 3 Select 5 Configure Alerts then follow the on screen instructions to complete the configuration process The user configures the Trigger Point and Dead Band for each High and Low alert and when the measurement value exceeds the Trigger Point it activates the alert The alert deactivates when the measurement value falls outside the Dead Band range Exam...

Страница 18: ...he Home screen select 2 Configure 2 Select 2 Manual Setup 3 Select 8 Other 4 Select 1 Write Protect AC Power FIlter The AC Power Filter can be set to reject line power noise at either 50 or 60 Hz 1 From the Home screen select 2 Configure 2 Select 2 Manual Setup 3 Select 8 Other 4 Select 2 AC Power Filter HART Tag The 848T HART Tag 8 characters can be configured to identify the device 1 From the Ho...

Страница 19: ...re Update rate 2 Message 1 3 Message 2 4 Message 3 1 Message 2 Update Rate 1 High Alert 2 Low Alert 1 Mode 2 Trigger Point 3 Dead Band 1 Manufacturer 2 Model 3 Final Assembly Number 4 Universal Rev 5 Field Device Rev 6 Software Rev 7 Hardware Rev 8 Descriptor 9 Message 10 Date 11 Model Number 12 SI Unit Control 13 Country 14 Device ID 1 Sensor 1 S N 2 Sensor 2 S N 3 Sensor 3 S N 4 Sensor 4 S N 1 M...

Страница 20: ...versal Field Device Software Hardware Descriptor Message Date Model Number SI Unit Control Country Device ID Guided Setup 2 1 Join Device to Network Configure Update Rate Configure Sensors Calibrate Sensors Configure Alerts Manual Setup 2 2 Wireless Sensor 1 Sensor 2 Sensor 3 Sensor 4 Device Temperature Device Information Other Wireless 2 2 1 Network ID Join Device to Network Update Rate Configure...

Страница 21: ...ath or serious injury Make sure only qualified personnel perform the installation Explosions could result in death or serious injury Before connecting a 375 Field Communicator in an explosive atmosphere make sure the instruments are installed in accordance with intrinsically safe or non incendive field wiring practices Verify that the operating atmosphere of the transmitter is consistent with the ...

Страница 22: ...l result in a simpler and faster network installation Enable Active Advertising on the Gateway to ensure that new devices join the network faster For more information see the Smart Wireless Gateway Manual Document No 00809 0200 4420 Antenna Position The antenna should be positioned vertically and it should be approximately 3 ft 1 m from any large structure building or conductive surface to allow f...

Страница 23: ...e compression terminals and tighten the screws Thermocouple or Millivolt Inputs Use appropriate thermocouple extension wire to remote mount the transmitter from the sensor Make millivolt input connections with copper wire Use shielding for long runs of wire RTD or Ohm Inputs There are various RTD configurations including the 2 3 and 4 wire used in industrial applications A 3 or 4 wire RTD operates...

Страница 24: ...h ambient temperature variations The table and the examples shown below help quantify these errors Table 3 1 Examples of Approximate Basic Error Figure 3 4 Sensor Wiring Diagrams Refer to Grounding Practices on page 3 10 for more information on sensor grounding practices Figure 3 5 Rosemount 68Q 78 Standard Temperature Range and 58C RTD Sensor Lead Wire Configurations Sensor Input Approximate Basi...

Страница 25: ...hermocouple Lead Wire Configuration Figure 3 8 Rosemount 185 Thermocouple Lead Wire Configurations Note Wire color examples apply to Rosemount sensors but will vary by manufacturer Single Element White 1 White 2 Red 3 Red 4 Type J Type E Type K Type T White 2 Red 3 Purple 2 Red 3 Yellow 2 Red 3 Blue 2 Red 3 Type J Type N Type K Black 2 White 3 Red 2 White 3 Green 2 White 3 ...

Страница 26: ...wire resistance effect Pt100 3 wire RTD Basic Error Error due to amb temperature variation Lead wire imbalance seen by the transmitter 0 5 Basic Error 1 3 C Error due to amb temp var of 25 C 0 1266 C Pt100 2 wire RTD Basic Error Error due to amb temp variation Lead wire resistance seen by the transmitter 150 m x 2 wires x 0 025 m 7 5 Basic Error 19 5 C Error due to amb temp var of 25 C 1 9 C Imbal...

Страница 27: ...se thread sealant on all connections 2 To reduce sensor wiring length mount the Rosemount 848T Wireless transmitter central to all of the measurements When installing the 848T wireless the conduit entries need to be facing downward If using the mounting bracket Option Code B6 mount to a 2 in pipe 3 Run wiring and conduit if necessary from the sensor to the 848T For an easier installation use the o...

Страница 28: ...but do not over tighten 8 Position the antenna vertically The antenna should be approximately three feet 1 m from any large structures or buildings to allow clear communication to other devices 4 20 Milliamp Inputs This section details the wiring and configuration of the Rosemount 848T Wireless transmitter to monitor a 4 20 mA signal using the S002 option code This technique is used to capture dat...

Страница 29: ... the 375 Communicator or AMS reconfigure the 848T sensor type to either 4 20 mA Rosemount 4 20 mA NAMUR or mV The engineering units are user selectable and can be either mA or mV Table 3 2 shows the saturation and alarm thresholds for 4 20 mA Rosemount sensor type and Table 3 3 shows the saturation and alarm thresholds for 4 20 mA NAMUR sensor type Table 3 2 4 20 mA Rosemount Saturation and Alarm ...

Страница 30: ... to local and national installation codes This can be accomplished via the process connection internal case grounding terminal or the external grounding terminal Each process installation has different requirements for grounding use the options recommended by the facility for the specific sensor type or begin with the recommendations below Ungrounded Thermocouple mV and RTD Ohm Inputs Option 1 Con...

Страница 31: ...20 mA signal at the power supply making sure not to attach the signal shield to Terminal Screw 5 2 The 4 20 mA signal shield should be electrically isolated from the 848T Wireless housing and the 4 20 mA device to ensure a single point ground Shield Ground Point 4 20 mA Device Power Supply Shield Ground Point 5 Ohm ...

Страница 32: ...Reference Manual 00809 0100 4848 Rev AA July 2009 Rosemount 848T Wireless 3 12 ...

Страница 33: ...ess Gateway beginning with the closest This will result in a simpler and faster network installation For more information see Smart Wireless Gateway Reference Manual 00809 0200 4420 Failure to follow these installation guidelines could result in death or serious injury Make sure only qualified personnel perform the installation Explosions could result in death or serious injury Before connecting a...

Страница 34: ... page displays the transmitter s HART tag PV SV TV QV and Update Rate If the device and sensors are working properly a green status indicator is present for HART status A red indicator means there is a problem with either the device a sensor or the communication path If Not Used has been selected for a sensor a yellow indicator is shown For more information on a specific device click on the tag na...

Страница 35: ...f it is communicating properly Figure 4 2 Smart Wireless Gateway Explorer Page NOTE It may take several minutes for the device to join the network NOTE If the device joins the network and immediately has an alarm present it is likely due to sensor configuration Check the sensor wiring see Rosemount 848T Terminal Diagram Figure 4 2 on page 4 3 and the sensor configuration see 848T Fast Key Sequence...

Страница 36: ...ence Manual 00809 0100 4848 Rev AA July 2009 Rosemount 848T Wireless 4 4 AMS Wireless Configurator When the device has joined the network it will appear in the AMS Wireless Configurator as illustrated below ...

Страница 37: ... installation guidelines could result in death or serious injury Make sure only qualified personnel perform the installation Explosions could result in death or serious injury Before connecting a 375 Field Communicator in an explosive atmosphere make sure the instruments are installed in accordance with intrinsically safe or non incendive field wiring practices Verify that the operating atmosphere...

Страница 38: ...the transmitter in temperature units or raw units Unless the site standard input source is NIST traceable the trim functions will not maintain the NIST traceability of the system Sensor Trim To calibrate the transmitter using the sensor trim function 1 Assemble and power the calibration system including the 848T Field Communicator AMS power supply and temperature input source 2 From the Home Scree...

Страница 39: ...irements exist recycling through a qualified recycler is encouraged Consult the materials safety data sheet for battery specific information Shipping Considerations The unit is shipped to you without the power module installed Please remove the power module from the unit prior to shipping Primary lithium batteries are regulated in transportation by the U S Department of Transportation and are also...

Страница 40: ...Reference Manual 00809 0100 4848 Rev AA July 2009 Rosemount 848T Wireless 5 4 ...

Страница 41: ...elines could result in death or serious injury Make sure only qualified personnel perform the installation Explosions could result in death or serious injury Before connecting a 375 Field Communicator in an explosive atmosphere make sure the instruments are installed in accordance with intrinsically safe or non incendive field wiring practices Verify that the operating atmosphere of the transmitte...

Страница 42: ...e above the high alert configured by the user The alert is active 1 Check the process sensors and process conditions 2 Check the user configured alerts Sensor Low Alert The temperature measurement has dropped below the low alert configured by the user The alert is active 1 Check the process sensors and process conditions 2 Check the user configured alerts Process Sensor Excessive EMF There is exce...

Страница 43: ...de Device Status Description Recommended Actions Symptom Recommended Actions Device not joining the network Verify Network ID and Join Key Wait longer 30 min Enable High Speed Operation on Smart Wireless Gateway Check the Power Module Verify the device is within range of at least one other device Verify network is in active network advertise Power Cycle device to try again Verify device is configu...

Страница 44: ...Reference Manual 00809 0100 4848 Rev AA July 2009 Rosemount 848T Wireless 6 4 ...

Страница 45: ...ng relative humidity Transmit Rate User selectable 8 sec to 60 min Accuracy PT 100 reference conditions 20 C 0 30 C 0 54 F Physical Specifications Electrical Connections Power Module Replaceable non rechargeable Intrinsically Safe Lithium Thionyl Chloride power module with polybutadine terephthalate PBT enclosure Six year life at reference conditions 1 5 Screw Terminals for sensor connection Field...

Страница 46: ...ce Specifications EMC ElectroMagnetic Compatibility Meets all relevant requirements of EN 61326 Transmitter Stability 0 15 of output reading or 0 15 C 0 27 F whichever is greater for 2 years for RTDs 0 15 of output reading or 0 15 C 0 27 F whichever is greater for 1 year for thermocouples Self Calibration The analog to digital measurement circuitry automatically self calibrates for each temperatur...

Страница 47: ... 6651 94 50 to 200 122 to 392 0 48 0 86 Cu 50 a 426 GOST 6651 94 50 to 200 122 to 392 0 96 1 73 Thermocouples Cold Junction Adds 0 5 C to Listed Accuracy NIST Type B Accuracy varies according to input range NIST Monograph 175 100 to 300 301 to 1820 212 to 572 573 to 3308 6 00 1 54 10 80 2 78 NIST Type E NIST Monograph 175 200 to 1000 328 to 1832 0 40 0 72 NIST Type J NIST Monograph 175 180 to 760 ...

Страница 48: ...0 0 003916 0 004 C 0 0072 F NA Cu 10 0 03 C 0 054 F NA Pt 500 0 003 C 0 0054 F NA Pt 1000 0 003 C 0 0054 F NA Cu 100 a 428 0 002 C 0 0036 F NA Cu 50 a 428 0 004 C 0072 F NA Cu 100 a 426 0 002 C 0 0036 F NA Cu 50 a 426 0 004 C 0072 F NA Ni 120 0 003 C 0 0054 F NA Thermocouple R the value of the reading NA Type B 0 014 C 0 032 C 0 0025 of R 300 0 054 C 0 011 of R 100 R 1000 300 R 1000 100 R 300 Type...

Страница 49: ...0809 0100 4848 Rev AA July 2009 A 5 Rosemount 848T Wireless DIMENSIONAL DRAWINGS 848T Wireless Remote Mount Dimensions are in inches millimeters 7 0 179 8 2 198 55 82 90 3 204 81 38 10 223 259 68 3 457 87 8 3 976 100 99 ...

Страница 50: ...ate 2 4 GHz DSSS WirelessHART Omnidirectional Wireless Antenna WK 2 Long Range Integral Antenna SmartPower 1 2 Long Life Power Module Adapter Intrinsically Safe Note Long Life Power Module must be shipped separately order Part 00753 9220 0001 Mounting Kit Options B6 Mounting Bracket for 2 in pipe mount SST brackets and bolts Housing Options HA1 3 3 HA1 or HA2 required for wireless Aluminum with Ca...

Страница 51: ...ication Compliance All wireless devices require certification to ensure that they adhere to regulations regarding the use of the RF spectrum Nearly every country requires this type of product certification Emerson is working with governmental agencies around the world to supply fully compliant products and remove the risk of violating country directives or laws governing wireless device usage FCC ...

Страница 52: ...ry Mutual FM Approvals I5 FM Intrinsic Safety and Non incendive Intrinsically Safe for Class I Division 1 Groups A B C and D Zone Marking Class I Zone 0 AEx ia llC Temperature Codes T4 Tamb 50 to 70 C Non incendive for Class I Division 2 Groups A B C and D Intrinsically Safe and non incendive when installed in accordance with Rosemount drawing 00849 1000 For use with Rosemount power module P N 753...

Страница 53: ...and D Temp Code T3C Enclosure Type 4X IP66 For use with Rosemount power module P N 753 9220 XXXX only Intrinsically Safe when installed per Rosemount drawing 00849 1016 N6 CSA Class 1 Division 2 Non Incendive for Class I Division 2 Groups A B C and D Enclosure Type 4X IP66 For use with Rosemount power module P N 753 9220 0001 only Non incendive when installed per Rosemount drawing 00849 1016 ...

Страница 54: ...nt of installation to prevent electrostatic charge build up 1180 IECEX CERTIFICATIONS I7 IECEx Intrinsic Safety Certificate No IECEx BAS 09 0004X Ex ia IIC T5 Tamb 60 C to 40 C Ex ia IIC T4 Tamb 60 C to 70 C IP66 For use with Rosemount power module P N 753 9220 XXXX only Special Conditions for Safe Use X The surface resistivity of the antenna is greater than one gigaohm To avoid electrostatic char...

Страница 55: ...0 4848 Rev AA July 2009 B 5 Rosemount 848T Wireless Figure B 1 Rosemount 848T Wireless Intrinsically Safe and Non Incendive Installation Drawing Page 1 of 2 Electronic Master PRINTED COPIES ARE UNCONTROLLED Rosemount Proprietary ...

Страница 56: ...0 4848 Rev AA July 2009 Rosemount 848T Wireless B 6 Figure B 2 Rosemount 848T Wireless Intrinsically Safe and Non Incendive Installation Drawing Page 2 of 2 Electronic Master PRINTED COPIES ARE UNCONTROLLED Rosemount Proprietary ...

Страница 57: ...0809 0100 4848 Rev AA July 2009 B 7 Rosemount 848T Wireless Figure B 3 Rosemount 848T Wireless CSA Intrinsic Safety Installation Drawing Page 1 of 2 Electronic Master PRINTED COPIES ARE UNCONTROLLED Rosemount Proprietary ...

Страница 58: ...0809 0100 4848 Rev AA July 2009 Rosemount 848T Wireless B 8 Figure B 4 Rosemount 848T Wireless CSA Intrinsic Safety Installation Drawing Page 2 of 2 Electronic Master PRINTED COPIES ARE UNCONTROLLED Rosemount Proprietary ...

Страница 59: ......

Страница 60: ...er marks are the property of their respective owners Standard Terms and Conditions of Sale can be found at www rosemount com terms_of_sale Reference Manual 00809 0100 4848 Rev AA July 2009 Emerson Process Management Asia Pacific Private Limited 1 Pandan Crescent Singapore 128461 T 65 6777 8211 F 65 6777 0947 Enquiries AP EmersonProcess com Emerson Process Management Rosemount Inc 8200 Market Boule...

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