Emerson Rosemount 928 User manual

Reference Manual
00809-0100-4928, Rev AC
August 2018
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.
The United States has two toll-free assistance numbers and one international number.
Customer Central: 1 800 999 9307 (7:00 a.m. to 7:00 p.m. Central Standard Time)
National Reponse Center: 1 800 654 7768 (24 hours a day) for equipment service needs
International: 1 952 906 8888
CAUTION
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
The Rosemount 928 Wireless Gas Monitor and all other wireless devices should be installed only after the Wireless Gateway has
been installed and is functioning properly. Wireless devices should also be powered up 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
The unit was shipped to you without the power module installed. Remove the power module prior to shipping.
Each power module contains two "C" size primary lithium batteries. Primary lithium batteries are regulated in transportation by
the U.S. Department of Transportation and are also covered by IATA (International Air Transport Association), ICAO (International
Civil Aviation Organiation), 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. 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. 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 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.
WARNING
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.
•Review Product certifications for any restrictions associated with a safe installation.
•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.
•When connecting an external device to the Rosemount 928 Wireless Gas Monitor's discrete output in a hazardous area,
ensure that the external device is installed in accordance with Intrinsically Safe or non-incendive field wiring practices.
2

WARNING
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.
3

4

Contents
................................................................................................................................................. 0
Chapter 1 Introduction ................................................................................................................. 9
1.1 Using this manual ............................................................................................................................ 9
1.2 Models covered ............................................................................................................................... 9
1.3 Device overview ............................................................................................................................ 10
1.4 Product recycling/disposal ............................................................................................................ 10
Chapter 2 Configuration ............................................................................................................. 11
2.1 Overview ....................................................................................................................................... 11
2.2 Safety messages ........................................................................................................................... 11
2.3 Install the Rosemount™ 628 Gas Sensor Module ............................................................................ 11
2.4 Install the power module .............................................................................................................. 14
2.5 Bench configuration ...................................................................................................................... 15
2.6 HART® menu trees ........................................................................................................................ 17
2.7 Guided setup ................................................................................................................................ 20
2.8 Calibrating the Rosemount™ 628 Gas Sensor Module .................................................................... 47
2.9 Manual setup ................................................................................................................................ 66
2.10 Advanced options ....................................................................................................................... 81
2.11 Removing the power module ...................................................................................................... 99
Chapter 3 Installation ............................................................................................................... 101
3.1 Overview ..................................................................................................................................... 101
3.2 Safety messages ......................................................................................................................... 101
3.3 Wireless considerations .............................................................................................................. 102
3.4 Electrical ..................................................................................................................................... 105
3.5 Verifying operating atmosphere ................................................................................................. 105
3.6 Installing the Rosemount™ 928 Transmitter ................................................................................ 105
3.7 LCD display rotation .................................................................................................................... 107
3.8 Grounding the transmitter .......................................................................................................... 108
3.9 External alarm device electrical connections ............................................................................... 108
Chapter 4 Commissioning ......................................................................................................... 113
4.1 Safety messages ......................................................................................................................... 113
4.2 Verifying 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 Verifying operation ..................................................................................................................... 118
4.6 If there is an immediate alarm ..................................................................................................... 120
4.7 Communication troubleshooting ................................................................................................ 120
Reference Manual Contents
00809-0100-4928 August 2018
5

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
5.5 Clearing process alarm history .................................................................................................... 134
5.6 Calibration history ....................................................................................................................... 139
5.7 Sensor log ................................................................................................................................... 145
5.8 Bump testing .............................................................................................................................. 152
5.9 Calibration .................................................................................................................................. 154
5.10 Rosemount™ 628 Gas Sensor Module storage ........................................................................... 154
5.11 Replace the Rosemount™ 628 Gas Sensor Module ..................................................................... 154
5.12 Replace the power module ....................................................................................................... 155
5.13 Replace the Ingress Protection filter .......................................................................................... 157
5.14 Service support ......................................................................................................................... 159
5.15 Shipping wireless products (lithium batteries) .......................................................................... 159
Chapter 6 Troubleshooting ....................................................................................................... 161
6.1 Overview ..................................................................................................................................... 161
6.2 Rosemount™ 928 Wireless Gas Monitor Troubleshooting ............................................................ 161
6.3 LCD display troubleshooting ....................................................................................................... 168
6.4 Wireless Network Troubleshooting ............................................................................................. 168
Appendix A Specifications ........................................................................................................... 171
A.1 Specifications ............................................................................................................................. 171
A.2 Dimensional drawings ................................................................................................................ 174
A.3 Ordering information .................................................................................................................. 175
Appendix B Product certifications ............................................................................................... 179
B.1 European Union Directive information ........................................................................................ 179
B.2 Telecommunication compliance ................................................................................................. 179
B.3 FCC and IC ................................................................................................................................... 179
B.4 Ordinary location certification ..................................................................................................... 179
B.5 Installing in North America .......................................................................................................... 179
B.6 Hazardous location certificates ................................................................................................... 180
Appendix C High gain remote antenna option ............................................................................. 185
C.1 Safety messages ......................................................................................................................... 185
C.2 Antenna functional specifications ............................................................................................... 185
C.3 Installation considerations .......................................................................................................... 186
C.4 Transient and lightning considerations ....................................................................................... 187
C.5 Dimensional drawings ................................................................................................................ 188
C.6 Install the high gain remote antenna ........................................................................................... 188
Appendix D Alert message mapping ............................................................................................ 193
Contents Reference Manual
August 2018 00809-0100-4928
6 Rosemount 928

D.1 Variable mapping ....................................................................................................................... 193
D.2 Alert mapping ............................................................................................................................ 193
Reference Manual Contents
00809-0100-4928 August 2018
7

Contents Reference Manual
August 2018 00809-0100-4928
8 Rosemount 928

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 Rosemount
928 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 Rosemount 928 Transmitter,
installation of the Rosemount 628 Series Gas Sensor Module on the transmitter, and the
wiring of external devices to the transmitter discrete output.
Commissioning contains information for the commissioning of the Rosemount 928
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 Rosemount
928 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 contains functional, physical, and performance specifications, as well as
ordering information.
Product certifications 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
Rosemount 928 Wireless Gas Monitor. 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
The following Rosemount™ 928 Gas Monitors are covered by this manual:
•Rosemount 928XSS00 Wireless Gas Monitor
—Ships with a separately specified Rosemount 628 Gas Sensor Module.
Reference Manual Introduction
00809-0100-4928 August 2018
9

•Rosemount 928UTX00 Wireless Gas Monitor
—Ships without a Rosemount 628 Gas Sensor Module.
•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.
—Ships with a separately specified Rosemount 628 Gas Sensor Module.
•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 Gas Sensor Module.
1.3 Device overview
The Rosemount™ 928 Wireless Gas Monitor uses the Rosemount 628 Series Gas Sensor
Module to monitor the presence of toxic hydrogen sulfide (H2S) gas. The Rosemount 628
Gas Sensor Module consists of an electrochemical sensor inside a hot-swappable sensor
module installed into the Rosemount 928 Transmitter housing. The Rosemount 928
Transmitter sends the gas concentrations measured by the Rosemount 628 Gas Sensor
Module to the host system using the Wireless HART® 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 is interpreted by the
transmitter and converted 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.
Introduction Reference Manual
August 2018 00809-0100-4928
10 Rosemount 928

2 Configuration
2.1 Overview
This section cotains information on configuring the Rosemount™ 928 Wireless Gas
Monitor, including the Rosemount 628 Gas Sensor Module, using Field Communicator or
AMS Wireless Configurator. It also includes Rosemount 628 Gas Sensor Module 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
Failure to follow these installation guidelines could result in death or serious injury.
•Ensure that only qualified persons perform the installation.
WARNING
Explosions could result in death or serious injury.
•Before connecting a handheld communication device in an explosive atomsphere,
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.
•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 Rosemount™ 628 Gas Sensor Module
The Rosemount 928 Wireless Gas Monitor is compatible with the Rosemount 628 Series
Sensor Modules. These sensors are contained within a sensor module that fits integrally
into the Rosemount 928 Wireless Gas Monitor Transmitter housing without using tools.
Make electrical connections when the sensor module is fully seated in the Rosemount 928
Transmitter sensor module housing.
Reference Manual Configuration
00809-0100-4928 August 2018
11

About this task
Note
Use Rosemount 928 Series Gas Sensor Modules only with the Rosemount 928 Transmitter.
CAUTION
The Ingress Protection (IP) filter must be installed.
Do not operate the Rosemount 928 Wireless Gas Monitor without the correct IP filter
installed in the Rosemount 628 Series Gas Sensor Module. If the IP filter is not installed,
damage may occur to the sensor inside the Rosemount 628 Series Gas Sensor Module.
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
The Rosemount 628 Series Gas Sensor Module is held in place using a tight-fitting seal and
snap connections. The Rosemount 628 Series Gas Sensor Module is connected to the
Rosemount 928 Transmitter by two latching tabs that fit into the bottom portion of the
housing as shown in the following figure.
Configuration Reference Manual
August 2018 00809-0100-4928
12 Rosemount 928

A. Rosemount 928 Transmitter housing
B. Rosemount 628 Gas Sensor Module
C. Latching tabs
The seal between the Rosemount 928 Transmitter housing and the Rosemount 628 Series
Gas Sensor Module assembly is designed so that a snug, airtight fit is achieved between
the two assemblies when properly installed.
Procedure
1. Remove the Rosemount 628 Gas Sensor Module from its packaging.
2. If installing a Rosemount 628 Gas Sensor Module on the Rosemount 928
Transmitter for the first time, remove the protective plastic cap from the sensor
module housing.
3. The Rosemount 628 Gas Sensor Module 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
Rosemount 628 Gas Sensor Module into the Rosemount 928 Transmitter.
4. Slide the Rosemount 628 Gas Sensor Module assembly up into the main Rosemount
928 Transmitter housing until it is completely seated.
5. To ensure a firm latch and seal, push the Rosemount 628 Gas Sensor Module
upward until the two latching tabs are fully engaged. Push up on the bottoms of the
tabs after they are seated.
6. Allow the Rosemount 928 Wireless Gas Monitor to warm up before continuing.
Refer to the following table 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.
Reference Manual Configuration
00809-0100-4928 August 2018
13

Gas type Maximum warm up period
Hydrogen sulfide (H2S) One minute
Postrequisites
To remove the Rosemount 628 Gas Sensor Module, compress the two latching tabs and
pull downward until the module is released from the Rosemount 928 Transmitter housing.
2.4 Install the power module
The Rosemount™ 928 Wireless Gas Monitor 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.
Configuration Reference Manual
August 2018 00809-0100-4928
14 Rosemount 928

3. Verify the connection by viewing the LCD display.
4. Replace the rear housing cover and completely tighten.
5. Allow the Rosemount 928 Wireless Gas Monitor to warm up before continuing.
Refer to the following table 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.
Gas type Maximum warm up period
Hydrogen sulfide (H2S) One minute
2.5 Bench configuration
To perform configuration, you must install the Rosemount™ 628 Gas Sensor Module in a
functional Rosemount 928 Transmitter. The Rosemount™ 928 Wireless Gas Monitor
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 Field Communicator
A Rosemount™ 928 Transmitter Device Description (DD) is required for HART®
communication.
About this task
To connect to the Rosemount 928 Wireless Gas Monitor 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.
Reference Manual Configuration
00809-0100-4928 August 2018
15

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.
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.
Configuration Reference Manual
August 2018 00809-0100-4928
16 Rosemount 928

2.6 HART® menu trees
The following figures 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
user manual for your handheld communicator device.
Reference Manual Configuration
00809-0100-4928 August 2018
17

Figure 2-2: Field Communicator Overview Menu Tree
Configuration Reference Manual
August 2018 00809-0100-4928
18 Rosemount 928

Figure 2-3: Field Communicator Configure Menu Tree
Reference Manual Configuration
00809-0100-4928 August 2018
19

Figure 2-4: 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.
About this task
Note
Emerson™ developed the Field Communicator Guided Setup configuration procedures
found in this manual 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.
Configuration Reference Manual
August 2018 00809-0100-4928
20 Rosemount 928