Emerson Rosemount 928 User manual

Reference Manual
00809-0100-4928, Rev AG
February2023
Rosemount™ 928
Wireless Gas Monitor

Safety information
Read this manual before working with this product. For personal and system safety and for optimum product
performance, make sure to thoroughly understand the contents before installing, using, or maintaining this product.
NOTICE
Read this document before working with the product. For personal and system safety, and for optimum product
performance, make sure you thoroughly understand the contents before installing, using, or maintaining this
product. For technical assistance, contacts are listed below:
Customer Central
Technical support, quoting, and order-related questions.
United States - 1-800-999-9307 (7:00 am to 7:00 pm Central Time)
Asia Pacific- 65 777 8211
Europe/Middle East/Africa - 49 (8153) 9390
North American Response Center
Equipment service needs.
1-800-654-7768 (24 hours—includes Canada)
Outside of these areas, contact your local Emerson representative.
WARNING
Explosions
Explosions could result in death or serious injury.
Installation of device in an explosive environment must be in accordance with appropriate local, national, and
international standards, codes, and practices.
Before connecting a handheld communication device in an explosive atmosphere, ensure the instruments are
installed in accordance with Intrinsically Safe or non-incendive field wiring practices.
WARNING
Electrical shock
Electrical shock could cause death or serious injury.
Avoid contact with the leads and terminals. High voltage that may be present on leads can cause electrical shock.
WARNING
Physical access
Unauthorized personnel may potentially cause significant damage to and/or misconfiguration of end users’
equipment. This could be intentional or unintentional and needs to be protected against.
Physical security is an important part of any security program and fundamental to protecting your system. Restrict
physical access by unauthorized personnel to protect end users’ assets. This is true for all systems used within the
facility.
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CAUTION
Nuclear applications
The products described in this document are not designed for nuclear qualified applications. Using non-nuclear
qualified products in applications that require nuclear-qualified hardware or products may cause inaccurate readings.
For information on Rosemount nuclear-qualified products, contact an Emerson sales representative.
CAUTION
Installation problems
Only install the Rosemount 928 and all other wireless devices after the Wireless Gateway has been installed and is
functioning properly. Power up wireless devices in order of proximity from the Wireless Gateway, beginning with the
closest. This will result in a simpler and faster network installation.
CAUTION
Shipping considerations for wireless products
Battery hazards remain when cells are discharged.
The unit was shipped to you without the power module installed. Remove the power module prior to any re-
shipping.
Each power module contains two "C" size primary lithium batteries. Primary lithium batteries are regulated in
transportation by the US 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 shipper's responsibility to ensure compliance with these or any other local
requirements. Consult current regulations and requirements before shipping.
The power module with the wireless unit contains two "C" size primary lithium/thionyl chloride batteries. Each
battery contains approximately 2.5 grams of lithium, for a total of 5 grams in each pack. Under normal conditions,
the battery materials are self-contained and are not reactive as long as the batteries and the pack integrity are
maintained. Take care to prevent thermal, electrical, or mechanical damage. Protect contacts to prevent
premature discharge.
Power modules should be stored in a clean and dry area. For maximum battery life, storage temperature should
not exceed 86 °F (30 °C).
The power module has surface resisitivity greater than one gigaohm and must be properly installed in the
wireless device enclosure. Take care during transportation to and from the point of installation to prevent
electrostatic charge buildup.
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4

Contents
Chapter 1 Introduction...............................................................................................................................7
1.1 Using this manual........................................................................................................................7
1.2 Models covered............................................................................................................................7
1.3 Device overview........................................................................................................................... 8
1.4 Product recycling/disposal......................................................................................................... 8
Chapter 2 Configuration............................................................................................................................ 9
2.1 Overview.......................................................................................................................................9
2.2 Safety messages.......................................................................................................................... 9
2.3 Install the sensor......................................................................................................................... 9
2.4 Install the power module......................................................................................................... 12
2.5 Bench configuration..................................................................................................................13
2.6 HART® menu trees.....................................................................................................................14
2.7 Guided setup..............................................................................................................................17
2.8 Calibrating the sensor.............................................................................................................. 44
2.9 Manual setup............................................................................................................................. 67
2.10 Advanced options....................................................................................................................82
2.11 Remove power module........................................................................................................ 100
Chapter 3 Installation.............................................................................................................................101
3.1 Overview...................................................................................................................................101
3.2 Safety messages......................................................................................................................101
3.3 Wireless considerations..........................................................................................................102
3.4 Electrical................................................................................................................................... 104
3.5 Verify operating atmosphere.................................................................................................104
3.6 Install the transmitter.............................................................................................................105
3.7 Rotate LCD display.................................................................................................................. 107
3.8 Ground the transmitter.......................................................................................................... 107
3.9 External alarm device electrical connections.......................................................................107
Chapter 4 Commissioning......................................................................................................................113
4.1 Safety messages......................................................................................................................113
4.2 Verify wireless network communication.............................................................................. 113
4.3 Using Field Communicator to change the network ID and join key.................................118
4.4 Using AMS Wireless Configurator to change the network ID and join key..................... 118
4.5 Verify operation.......................................................................................................................118
4.6 If there is an immediate alarm.............................................................................................. 119
4.7 Troubleshoot communication............................................................................................... 120
Chapter 5 Operation and maintenance............................................................................................... 121
5.1 Safety messages......................................................................................................................121
5.2 LCD display screens................................................................................................................ 122
5.3 Software features....................................................................................................................127
5.4 Resetting latched alarms........................................................................................................128
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5.5 Clearing process alarm history..............................................................................................135
5.6 Calibration history...................................................................................................................140
5.7 Sensor log................................................................................................................................ 146
5.8 Bump testing........................................................................................................................... 152
5.9 Calibration................................................................................................................................154
5.10 Sensor storage...................................................................................................................... 154
5.11 Replace the gas sensor.........................................................................................................154
5.12 Replace the power module.................................................................................................. 155
5.13 Replace the Ingress Protection filter.................................................................................. 157
5.14 Service support......................................................................................................................159
Chapter 6 Troubleshooting.................................................................................................................... 161
6.1 Overview...................................................................................................................................161
6.2 Rosemount 928 troubleshooting.......................................................................................... 161
6.3 Digital concentration output is not reacting to presence of target gas...........................167
6.4 LCD display troubleshooting................................................................................................. 167
6.5 Wireless network troubleshooting........................................................................................168
Appendix A Specifications and reference data...................................................................................... 169
A.1 Specifications...........................................................................................................................169
A.2 Dimensional drawings............................................................................................................172
A.3 Ordering information............................................................................................................. 173
Appendix B Product Certifications - 928 Wireless Gas Monitor............................................................177
B.1 European Directive Information........................................................................................... 177
B.2 Telecommunication compliance........................................................................................... 177
B.3 FCC and IC................................................................................................................................177
B.4 Ordinary Location Certification ............................................................................................ 177
B.5 Installing in North America....................................................................................................177
B.6 USA............................................................................................................................................177
B.7 Canada..................................................................................................................................... 178
B.8 Europe...................................................................................................................................... 179
B.9 International............................................................................................................................180
B.10 China.......................................................................................................................................180
B.11 Japan.......................................................................................................................................181
B.12 Brazil.......................................................................................................................................181
B.13 Intrinsically Safe installation drawing................................................................................ 182
Appendix C High gain remote antenna option...................................................................................... 183
C.1 Safety messages......................................................................................................................183
C.2 Antenna functional specifications.........................................................................................183
C.3 Installation considerations.................................................................................................... 184
C.4 Transient and lightning considerations............................................................................... 185
C.5 Dimensional drawing............................................................................................................. 186
C.6 Install the high gain remote antenna...................................................................................187
Appendix D Alert message mapping....................................................................................................... 191
D.1 Variable mapping................................................................................................................... 191
D.2 Alert mapping......................................................................................................................... 191
Contents Reference Manual
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1 Introduction
1.1 Using this manual
The sections in this manual provide information on installing, operating, and maintaining
the Rosemount 928 Wireless Gas Monitor. Models 928XSS00 and 928XUT00 are the
standard wireless gas monitors. Models 928XXSS01 and 928XUT01 include discrete
outputs, which can be used to trigger optional external device alarms, such as beacons
or annunciators, when an alarm condition occurs.
The manual sections are organized as follows:
Configuration contains information on the configuration and calibration of the transmitter.
You can configure with the AMS Wireless Configurator or Field Communicator. This section
also includes Field Communicator menu trees.
Installation contains information on the installation of the transmitter, installation of the
sensor on the transmitter, and the wiring of external devices to the transmitter discrete
output.
Commissioning contains information for the commissioning of the transmitter onto the
wireless network and how to verify that the transmitter has successfully joined.
Operation and maintenance provides detailed information on operation of the transmitter.
The chapter shows LCD display messages and includes maintenance information, such as
power module replacement, bump testing, and periodic calibration.
Troubleshooting provides descriptions and recommended corrective actions for common
errors and problems.
Specifications and reference data contains functional, physical, and performance
specifications, as well as ordering information.
Product Certifications - 928 Wireless Gas Monitor contains telecommunication compliance
information, ordinary location certification, hazardous locations certificates, and intrinsic
safety installation drawings.
High gain remote antenna option contains specifications, description, and installation
information for the optional high gain remote antenna.
Alert message mapping contains information about alerts in the HART® command,
48 additional status field and device variables, and variable mapping indexes for
the transmitter. This information can be used by DeltaV™ for alert monitoring and
in the Wireless Gateway for additional status mapping in Modbus®, OPC, or other
communications protocols.
1.2 Models covered
This manual covers the following modules:
•Rosemount 928XSS00 Wireless Gas Monitor
—Ships with a separately specified Rosemount 628 Universal Gas Sensor.
•Rosemount 928UTX00 Wireless Gas Monitor
—Ships without a Rosemount 628 Universal Gas Sensor.
•Rosemount 928XSS01 Wireless Gas Monitor
—Wireless gas monitor with discrete output to be used as a switch for triggering
external equipment on an alarm state.
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—Ships with a separately specified Rosemount 628 Universal Gas Sensor.
•Rosemount 928UTX021
—Wireless gas monitor with discrete output to be used as a switch for triggering
external equipment on an alarm state.
—Ships without a Rosemount 628 Universal Gas Sensor.
1.3 Device overview
The Rosemount 928 Wireless Gas Monitor uses the Rosemount 628 Universal Gas Sensor
to monitor the presence of toxic gases. The Rosemount 628 Universal Gas Sensor consists
of an electrochemical sensor inside a hot-swappable sensor module installed into the
transmitter housing. The transmitter sends the gas concentrations measured by the sensor
to the host system using the WirelessHART® protocol.
Electrochemical toxic sensors, such as those contained in the Rosemount 628 Series Gas
Sensor Module, consist of a set of electrodes separated by electrolyte material. When the
target gas is present inside the sensor housing, it oxidizes or reduces on the sensing
electrode. This creates an electric signal across the cell, which the transmitter interprets
and converts into a wireless-enabled signal.
1.4 Product recycling/disposal
Consider recycling equipment and packaging. Dispose of the product and packaging in
accordance with local and national legislations and regulations.
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2 Configuration
2.1 Overview
This section contains information on configuring the transmitter, including the sensor,
using Field Communicator or AMS Wireless Configurator. It also includes sensor calibration
information.
2.2 Safety messages
Instructions and procedures in this section may require special precautions to ensure the
safety of the personnel performing them.
WARNING
Follow installation guidelines.
Failure to follow these installation guidelines could result in death or serious injury.
Ensure that only qualified persons perform the installation.
WARNING
Explosions
Explosions could result in death or serious injury.
Before connecting a handheld communication device in an explosive atmosphere, make
sure that 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.
WARNING
Electrical shock
Electrical shock could cause death or serious injury.
Use extreme caution when making contact with the leads and terminals.
The power module may be replaced in a hazardous area. The power module has a
surface resistivity greater than one gigaohm and must be properly installed in the
wireless device enclosure. Take care during transportation to and from the point of
installation to prevent electrostatic charge buildup.
The surface resistivity of the antenna is greater than one gigaohm. To avoid
electrostatic charge buildup, do not rub or clean the antenna with solvents or a dry
cloth.
Substitution of components may impair intrinsic safety.
2.3 Install the sensor
The Rosemount 928 Wireless Gas Monitor is compatible with the Rosemount 628 Universal
Gas Sensors. These sensors are contained within a sensor module that fits integrally into
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the transmitter housing without using tools. Make electrical connections when the sensor
module is fully seated in the transmitter sensor module housing.
CAUTION
Install the Ingress Protection (IP) filter.
If the IP filter is not installed, damage may occur to the sensor inside the sensor.
Do not operate the transmitter without the correct IP filter installed in the sensor.
When installing the IP filter, verify that the IP filter gasket is in place and properly
aligned and that it does not block the white filter media. Refer to Figure 2-1.
When handling the IP filter, avoid contact with the filter media.
Verify that all three legs are fully latched by pushing upward on each leg of the IP filter.
Avoid getting water inside the IP filter.
Do not attempt to clean the IP filter.
Do not rinse or spray the IP filter with water.
Do not immerse the IP filter in water.
Figure 2-1: IP Filter
A. IP filter housing
B. IP filter gasket
C. Filter media
Note
Use Rosemount 628 Universal Gas Sensors only with the Rosemount 928 Transmitter.
The sensor is held in place using a tight-fitting seal and snap connections. The sensor is
connected to the transmitter by two latching tabs that fit into the bottom portion of the
housing as shown in Figure 2-2.
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Figure 2-2: IP Filter Latching Tabs Locations
A. Transmitter housing
B. Gas sensor module
C. Latching tabs
The seal between the transmitter housing and the sensor assembly is designed so that a
snug, airtight fit is achieved between the two assemblies when properly installed.
Procedure
1. Remove the sensor from its packaging.
2. If installing a sensor on the transmitter for the first time, remove the protective
plastic cap from the sensor module housing.
3. The sensor contains a keying feature that ensures that the module cannot be forced
into the transmitter housing incorrectly. Confirm that the keying feature is aligned
by rotating it into position before installing the sensor into the transmitter.
4. Slide the sensor assembly up into the main transmitter housing until it is completely
seated.
5. To ensure a firm latch and seal, push the sensor upward until the two latching tabs
are fully engaged. Push up on the bottoms of the tabs after they are seated.
6. Allow the transmitter to warm up before continuing.
Refer to Table 2-1 for maximum warm-up times based on gas type. During the
warm-up period, the displayed values, alerts, and gas concentrations do not reflect
actual measurements; readings are not transmitted.
Table 2-1: Maximum Warm-up Periods
Gas type Maximum warm-up period
Hydrogen sulfide (H2S) One minute
Oxygen (O2) Seven minutes
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Table 2-1: Maximum Warm-up Periods (continued)
Gas type Maximum warm-up period
Carbon monoxide (CO) One minute
Postrequisites
To remove the sensor, compress the two latching tabs and pull downward until the module
is released from the transmitter housing.
2.4 Install the power module
The transmitter is powered by the Emerson 701 SmartPower™ Module - Black. To connect
the module to the transmitter, do the following:
Procedure
1. Remove the rear housing cover.
A. Rear housing cover
2. Connect the Emerson 701 SmartPower Module - Black.
3. Verify the connection by viewing the LCD display.
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4. Replace the rear housing cover and completely tighten.
5. Allow the transmitter to warm up before continuing.
Refer to Table 2-2 for maximum warm-up times based on gas type. During the
warm-up period, the displayed values, alerts, and gas concentrations do not reflect
actual measurements; readings are not transmitted.
Table 2-2: Maximum Warm-up Periods
Gas type Maximum warm-up period
Hydrogen sulfide (H2S) One minute
Oxygen (O2) Seven minutes
Carbon monoxide (CO) One minute
2.5 Bench configuration
To configure, you must install the sensor in a functional transmitter. The transmitter
receives any HART® communication from a handheld Field Communicator or from an AMS
Wireless Configurator.
Remove the rear housing cover to expose the terminal block and HART communication
terminals; then connect the power module to power the device for configuration.
2.5.1 Bench configure using a Field Communicator
A transmitter Device Description (DD) is required for HART® communication.
To connect to the transmitter using a handheld communication device, refer to Guided
setup. To obtain the latest DD, go to EmersonProcess.com/DeviceFiles and then visit the
Emerson web page for your handheld device.
Procedure
1. On the Home screen, select Configure.
2. Do one of the following:
•On the Configure screen, select Guided Setup to verify or change initial
configuration settings. Refer to Guided setup. Refer to the Field Communicator
subsections for each configuration task.
•On the Configure screen, select Manual Setup to verify or change all
configuration settings, including optional advanced settings. Refer to Manual
setup. Refer to the Field Communicator subsections for each configuration task.
3. When finished, select Send to implement configuration changes.
4. When configuration is completed, remove the HART® communications leads from
the COMM terminals on the terminal block and replace the rear housing cover.
2.5.2 Bench configure AMS Wireless Configurator
AMS Wireless Configurator is capable of connecting to devices directly, using a HART®
modem, or though a Wireless Gateway.
Procedure
1. In the AMS Device Manager pane, select the HART modem.
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2. In the device pane, double-click the device icon.
3. Select Configure.
4. In the Configure pane, do one of the following:
•Select Guided Setup to verify or change initial configuration settings. Refer to
Guided setup. Refer to the AMS Wireless Configurator subsections for each
configuration task.
•Select Manual Setup to verify or change all configuration settings, including
optional advanced settings. Refer to Manual setup. Refer to the AMS Wireless
Configurator subsections for each configuration task.
5. When finished, select Send to implement configuration changes.
2.6 HART® menu trees
Figure 2-3, Figure 2-4, and Figure 2-5 show the navigation paths for Field Communicator
commands and options.
A Rosemount 928 Wireless Gas Monitor DD is required for HART Wireless transmitter
communication. To obtain the latest Emerson DD, visit the System Software and Device
Description web page for your handheld communicator device. Refer to the reference
manual for your handheld communicator device.
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Figure 2-3: Field Communicator Overview Menu Tree
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Figure 2-4: Field Communicator Configure Menu Tree
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Figure 2-5: Field Communicator Service Tools Menu Tree
2.7 Guided setup
Guided setup contains basic configurations settings. The Guided Setup menus are useful
during initial configuration.
Note
Emerson developed the Field Communicator Guided Setup configuration procedures using
Emerson AMS Trex™ Device Communicator. The menus are identical to those found in other
Field Communicators, but are navigated using touch screens rather than fast keys. Refer to
the manual for your handheld communicator device for more information.
WARNING
Explosions
Do not connect to the COMM terminals when an explosive atmosphere is present.
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Procedure
1. Connect the HART® communication leads to the HART terminals on the handheld
communicator.
2. Connect the HART communication leads to the COMM terminals on the transmitter
terminal block.
3. Start your handheld communicator device. If necessary, open the HART
Field Communicator application on your handheld device to establish HART
communication.
Refer to the manual for your handheld communicator device for more information.
4. On the Overview screen, select Configure.
5. On the Configure screen, select Guided Setup.
Postrequisites
Refer to Basic setup through Configuring process alerts.
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2.7.1 Basic setup
Basic setup using Field Communicator
Procedure
1. On the Guided Setup screen, select Basic Setup.
2. On the Device Information screen, select any of the following and configure as
needed. Otherwise, continue with Step3.
•Long tag: Enter an identifier for the device up to 32 characters long using the
virtual keypad. The Long tag field is blank by default and does not display if left
blank.
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•Tag: Enter an identifier for the device up to eight uppercase alphabetic and
numeric characters long using the virtual keypad. The Tag field is blank by
default and does not display if left blank.
•Descriptor: Enter a description of the device up to 16 alphabetic, numeric, and
special characters long. The Descriptor field is blank by default and does not
display if left blank.
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