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Emerson Rosemount 928 Reference Manual

Wireless gas monitor
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Reference Manual
00809-0100-4928, Rev AC
August 2018
™
Rosemount
928 Wireless Gas Monitor

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  • Page 1 Reference Manual 00809-0100-4928, Rev AC August 2018 ™ Rosemount 928 Wireless Gas Monitor...
  • Page 2 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.
  • Page 3 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.

  • Page 5: Table Of Contents

    Reference Manual Contents 00809-0100-4928 August 2018 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 ............................
  • Page 6 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 Rosemount 928...
  • Page 7 Reference Manual Contents 00809-0100-4928 August 2018 D.1 Variable mapping ........................193 D.2 Alert mapping ..........................193...
  • Page 8 Contents Reference Manual August 2018 00809-0100-4928 Rosemount 928...

  • Page 9: Chapter 1 Introduction

    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.

  • Page 10: Device Overview

    S) 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 ®...

  • Page 11: Chapter 2 Configuration

    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.
  • Page 12 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.
  • Page 13 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.

  • Page 14: Install The Power Module

    Hydrogen sulfide (H 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. Install the power module ™ ™ ™...

  • Page 15: Bench Configuration

    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;...
  • Page 16 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. Rosemount 928...

  • Page 17: Hart ® Menu Trees

    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.
  • Page 18 Configuration Reference Manual August 2018 00809-0100-4928 Figure 2-2: Field Communicator Overview Menu Tree Rosemount 928...
  • Page 19 Reference Manual Configuration 00809-0100-4928 August 2018 Figure 2-3: Field Communicator Configure Menu Tree...

  • Page 20: Guided Setup

    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.
  • Page 21 Reference Manual Configuration 00809-0100-4928 August 2018 Procedure ® 1. Connect the HART communication leads to the HART terminals on the handheld communicator. A. +COMM terminal B. -COMM terminal 2. Connect the HART communication leads to the COMM terminals on the ™...
  • Page 22 6. Perform each of the configuration tasks in the following subsections. 2.7.1 Basic setup Basic setup using Field Communicator Complete the following steps to set up the device using a Field Communicator. Procedure 1. On the Guided Setup screen, select Basic Setup. Rosemount 928...
  • Page 23 Reference Manual Configuration 00809-0100-4928 August 2018 2. On the Device Information screen, select any of the following and configure as needed. Otherwise, continue with Step • Long tag: Enter an identifier for the device up to 32 characters long using the virtual keypad.
  • Page 24 • Descriptor: Enter a description of the device up to 16 alphabetic, numeric, and special characters long. The Descriptor is blank by default and does not display if left blank. Rosemount 928...
  • Page 25 Reference Manual Configuration 00809-0100-4928 August 2018 • Message: Enter a message up to 32 alphabetic, numeric, and special characters long. The Message field is blank by default, does not display if left blank, and may be used for any purpose. 3.
  • Page 26 4. On the Basic Setup screen, select OK to confirm successful completion of basic setup. Basic setup using AMS Wireless Configurator Complete the following steps to set up the device using the AMS Wireless Configurator. Procedure 1. ON the Guided Setup tab, in the Initial Setup field, select Basic Setup. Rosemount 928...
  • Page 27 Reference Manual Configuration 00809-0100-4928 August 2018 2. On the Device Information tab, configure any of the following as needed. Otherwise, continue with Step • Long tag: Enter an identifier for the device up to 32 characters long using the virtual keypad. The Long Tag is left blank by default and does not display if left blank.
  • Page 28 928 Transmitter to a wireless network To communicate with the Wireless Gateway and the host system, the Rosemount 928 Transmitter must be configured to communicate using the wireless network. This procedure is the wireless equivalent of connecting wires from a transmitter to the host system.
  • Page 29 Reference Manual Configuration 00809-0100-4928 August 2018 Join a wireless network using Field Communicator Complete the following steps to join the transmitter to a wireless network using a Field Communicator. Procedure 1. On the Guided Setup screen, select Join to Network. 2.
  • Page 30 6. Repeat Step 4 Step 5 for parts 2 - 4 of the Join Key. Join a wireless network using AMS Wireless Configurator Complete the following steps to join the transmitter to a wireless network using AMS Wireless Configurator. Rosemount 928...
  • Page 31 Emerson does not recommend reporting by exception for the Rosemount Wireless Gas Monitors or Emerson Wireless Gateways due to its potential adverse effect on Wireless Gateway capacity and network integrity. Therefore, select an update rate for all Wireless Gas Monitors that corresponds to the safety needs of your facility but does not...
  • Page 32 Complete the following steps to configure the update rate on the device using a Field Communicator. Procedure 1. On the Guided Setup screen, select Configure Update Rate. 2. On the Configure Update Rate screen, do one of the following: Rosemount 928...
  • Page 33 Reference Manual Configuration 00809-0100-4928 August 2018 • a. For an update rate from one second to sixty seconds, select an update rate from the list. b. Select OK. • a. For update rates greater than sixty seconds, select 61-3600 seconds from the list.
  • Page 34 Wireless Gateway, saving network bandwidth. If you don't use optimizations, you will need more message packets to receive the same amount of information. Emerson recommends enabling Wireless Gateway optimizations unless they are incompatible with the Wireless Gateway.
  • Page 35 Reference Manual Configuration 00809-0100-4928 August 2018 Configure the update rate using AMS Wireless Configurator Complete the following steps to configure the update rate on the device using the AMS Wireless Configurator. Procedure 1. On the Guided Setup tab, in the Wireless field, select Configure Update Rate to configure the frequency at which the device reports measurement and diagnostic information.
  • Page 36 Configuration Reference Manual August 2018 00809-0100-4928 • a. Select an update rate from one second to sixty seconds from the list. b. Select Next. • a. Select 61-3600 from the list. Rosemount 928...
  • Page 37 Wireless Gateway, saving network bandwidth. If you don't use optimizations, you will need more message packets to receive the same amount of information. Emerson recommends enabling Wireless Gateway optimizations unless they are incompatible with the Wireless Gateway.
  • Page 38 Configuring the device display mode The device display mode defines whether or how frequently the LCD display is turned on to display selected dynamic variables screens. Disabling the display mode or selecting a less frequent display mode extends power module life. Rosemount 928...
  • Page 39 Reference Manual Configuration 00809-0100-4928 August 2018 Configure the device display mode using Field Communicator Complete the following steps to configure the device display mode on the device using a Field Communicator. Procedure 1. On the Guided Setup screen, select Configure Device Display. 2.
  • Page 40 Results Note When a handheld communication device is connected to the Rosemount 928 Wireless Gas Monitor, the LCD display is in High Availability mode. Selecting and accepting the On Demand or Periodic options does not take effect until approximately five minutes after the handheld communicator device is disconnected.
  • Page 41 Wireless Gateway web interface, on host systems with which the Wireless Gateway communicates, and in the error section of the LCD display (if so configured). Disable process alerts if the Rosemount 928 Wireless Gas Monitor is not connected to a wireless network.
  • Page 42 Complete the following steps to configure process alerts on the device with a Field Communicator. Procedure 1. On the Guided Setup screen, select Configure Process Alerts. 2. On the Process Alerts screen, select a process alert to configure. Rosemount 928...
  • Page 43 Reference Manual Configuration 00809-0100-4928 August 2018 3. On the selected process alert screen, select Mode. 4. On the Mode screen, select Enabled. 5. Select OK. 6. On the selected process alert screen, select Alert Limit.
  • Page 44 7. On the Alert Limit screen, use the numeric keypad to enter an alert limit for the selected process alert based on your needs and local regulations. 8. Select OK. 9. On the selected process alert screen, select Next. Rosemount 928...
  • Page 45 Reference Manual Configuration 00809-0100-4928 August 2018 10. On the Configure Process Alerts screen, select OK to confirm successful process alarm configurations. 11. Repeat Step 2 through Step 10 as necessary to configure additional process alarms. ® 12. When you have completed configuration, remove the HART communication leads from the Comm terminals on the terminal block and replace the rear housing cover.
  • Page 46 3. In the Alert Limit box, enter an alert limit for the selected process alert based on your needs and local regulations. 4. Repeat Step 2 Step 3 if necessary to configure the Hi Alarm process alert. 5. Select Next. Rosemount 928...

  • Page 47: Calibrating The Rosemount ™ 628 Gas Sensor Module

    It must be connected to a Rosemount 928 Transmitter to calibrate, but the calibration settings are stored in itself rather than in the Rosemount 928. You may uninstall the Rosemount 628 from a Rosemount 928 and reinstall it in another transmitter without affecting its calibration.
  • Page 48 ® 1. Connect the HART communication leads from the Field Communicator HART terminals to the COMM terminals on the terminal block of the Rosemount 928 Transmitter. WARNING Do not connect to the COMM terminals when an explosive atmosphere is present.
  • Page 49 Reference Manual Configuration 00809-0100-4928 August 2018 4. On the Configure screen, select Guided Setup. 5. On the Guided Setup screen, select Calibrate Sensor.
  • Page 50 Obtain a cylinder of verified clean air and a length of calibration tubing (PVC tubing, 3/16-in. ID, 5/16-in. OD). b) Install a regulator on the clean air cylinder. Rosemount 928...
  • Page 51 Reference Manual Configuration 00809-0100-4928 August 2018 c) Attach a length of calibration tubing (PVC tubing, 3/16-in. ID, 5/16-in. OD) from the regulator on the clean air cylinder to the fitting on the Rosemount 628 Gas Sensor Module IP filter assembly (part number 00628-9000-0001). d) Release the clean air to the sensor.
  • Page 52 This value must be between 5 ppm and 100 ppm. 14. Select OK. WARNING Before performing the next step, verify that the regulator is closed to avoid releasing target gas into the air during calibration. Rosemount 928...
  • Page 53 Rosemount 628 Gas Sensor Module IP filter assembly (part number 00628-9000-0001). 17. Release the target gas from the target gas source. Emerson recommends a flow rate of 1.0 liters per minute to ensure a consistent sensor reading. Note...
  • Page 54 Refer to the following figure. Figure 2-5: Typical Calibration Profile A. Gas concentration ppm B. Time (in seconds) C. Gas concentration measurement has stabilized. 19. Select OK when the gas concentration measurement stabilizes at or near the target gas concentration level. Rosemount 928...
  • Page 55 Reference Manual Configuration 00809-0100-4928 August 2018 20. Wait while the Field Communicator calibrates. When the calibration process finishes, the Field Communicator displays the new adjusted reading. 21. Select OK. Note If you can't calibrate the sensor, verify that the correct sensor is installed, the correct target gas is being applied, and the IP filter is not clogged or obstructed.
  • Page 56 25. Detach the calibration tubing from the regulator on the target gas source and from the IP filter inlet on the bottom of the Rosemount 628. 2.8.2 Calibrate using AMS Wireless Configurator Complete the following steps to calibrate the device using an AMS Wireless Configurator. Rosemount 928...
  • Page 57 Reference Manual Configuration 00809-0100-4928 August 2018 Procedure 1. On the Guided Setup tab, in the Initial Setup field, select Calibrate Sensor. 2. On the Calibrate Sensor screen, select Next to accept the current date as the calibration date and continue.
  • Page 58 Obtain a cylinder of verified clean air and a length of calibration tubing (PVC tubing, 3/16-in. ID, 5/16-in. OD). b) Install a regulator on the clean air cylinder. Rosemount 928...
  • Page 59 Reference Manual Configuration 00809-0100-4928 August 2018 c) Attach a length of calibration tubing (PVC tubing, 3/16-in. OD, 5/16-in. OD) from the regulator on the clean air cylinder to the IP filter on the bottom of ™ the Rosemount 628 Gas Sensor Module. d) Release the clean air to the sensor.
  • Page 60 Configuration Reference Manual August 2018 00809-0100-4928 7. Select Accept New Zero. Rosemount 928...
  • Page 61 Reference Manual Configuration 00809-0100-4928 August 2018 8. Select Next. 9. On the Calibrate Sensor screen, enter a gas concentration level (for example, 50 ™ ppm) between 5 ppm and 100 ppm at which to calibrate the Rosemount 628. 10. Select Next. WARNING Before performing the next step, verify that the regulator is closed to avoid releasing gas into the air during calibration.
  • Page 62 Note If you need a long length of calibration tubing to reach the device, make allowances for a delay in response time from the sensor while the target gas travels the length of the calibration tubing. Rosemount 928...
  • Page 63 Reference Manual Configuration 00809-0100-4928 August 2018 A gas concentration should begin to register on the device display and gradually increase to the calibration gas concentration level. The gas concentration level shown on the device display may not exactly match that shown on the label attached to the target gas source.
  • Page 64 Configuration Reference Manual August 2018 00809-0100-4928 15. Select Next when the gas concentration measurement stabilizes at or near the target gas concentration level. Rosemount 928...
  • Page 65 Reference Manual Configuration 00809-0100-4928 August 2018 16. Wait while the AMS Wireless Configurator calibrates. When the calibration process finishes, the new adjusted reading is displayed. 17. Select Next. 18. Select Accept calibration. 19. Select Next.

  • Page 66: Manual Setup

    Emerson developed the Field Communicator manual setup configuration procedures 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.
  • Page 67 Reference Manual Configuration 00809-0100-4928 August 2018 Procedure ® 1. Connect the HART communications leads to the HART terminals on the handheld communicator. A. +COMM terminal B. -COMM terminal 2. Connect the HART communication leads to the COMM terminals on the terminal block.
  • Page 68 Configuration Reference Manual August 2018 00809-0100-4928 4. On the Overview screen, select Configure. 5. On the Configure screen, select Manual Setup. Rosemount 928...
  • Page 69 Reference Manual Configuration 00809-0100-4928 August 2018 Postrequisites Perform the configuration tasks in the following subsections as needed. 2.9.1 Configuring display options The primary variable (gas concentration) is displayed by default on the LCD display. To configure the display of additional dynamic variable items, do the following: Configure display options using Field Communicator Complete the following steps to configure display options on the device using a Field Communicator.
  • Page 70 (gas concentration). • Percent of Range • Sensor Temp (gas sensor module temperature) • Electronics Temp (electronics temperature) • Supply Voltage 4. Select On. 5. Select OK. 6. Repeat Step 3 through Step 5 for additional display options. Rosemount 928...
  • Page 71 Reference Manual Configuration 00809-0100-4928 August 2018 7. On the Display Options screen, select Send. 8. On the Send screen, do one or more of the following: • Select Display Options if you want to review the selected display options. • Select Cancel to return to the Display Options screen.
  • Page 72 2. On the Display tab, select a display option or options to alternate displaying with the primary variable (gas concentrations). • Percent of Range • Sensor Temperature (gas sensor module temperature) • Electronics Temperature • Supply Voltage 3. Select Send. Rosemount 928...
  • Page 73 Reference Manual Configuration 00809-0100-4928 August 2018 4. In the Confirm Device Configuration Change dialog box, select a reason for the change from the Service Reason list. Select Details if you want to view additional information. 5. Select Yes. 2.9.2 Configuring security settings ™...
  • Page 74 Off when the device is unlocked. • Over the Air Upgrade: If you select Unlock (the default option), you can upgrade the transmitter radio with programming sent over the air. If you select Lock, the transmitter prevents over-the-air radio upgrades. Rosemount 928...
  • Page 75 Reference Manual Configuration 00809-0100-4928 August 2018 Configure security settings using AMS Wireless Configurator Complete the following steps to configure security settings on the device using an AMS Wireless Configurator. Procedure 1. On the Manual Setup page, select the Security tab. 2.
  • Page 76 In the HART Lock list, select Lock or Unlock to change the setting. c. Select Finish. In the HART Lock field, the Device is Locked check box is selected when the device is locked. 3. When you are finished making changes, select Send to update the device configuration. Rosemount 928...
  • Page 77 Reference Manual Configuration 00809-0100-4928 August 2018 2.9.3 Configuring device information ™ You can configure device information for the Rosemount 928 Wireless Gas Monitor. Configure device information using Field Communicator Complete the following steps to configure device information using the Field Communicator.
  • Page 78 • Message: Enter a message up to 32 alphabetic, numeric, and special characters long. The Message field is blank by defualt, does not display if left blank and may be used for any purpose. Rosemount 928...
  • Page 79 Reference Manual Configuration 00809-0100-4928 August 2018 • Date: Enter a date in mm/dd/yyy format using the virtual keypad. The date may be used for any purpose, such as recording the date of the most recent calibration. 3. When you have finished making changes, select Send.
  • Page 80 Configure device information using AMS Wireless Configurator Complete the following steps to configure device information using the AMS Wireless Configurator. Procedure 1. On the Manual Setup page, select the Device Information tab. 2. Enter any of the following as needed: Rosemount 928...

  • Page 81: Advanced Options

    Reference Manual Configuration 00809-0100-4928 August 2018 • Long Tag: Enter an identifier for the device up to 32 characters long. The Long Tag field is blank by default and does not display if left blank. • Tag: Enter an identifier for the device up to eight uppercase alphabetic and numeric characters long.
  • Page 82 Reference Manual August 2018 00809-0100-4928 service interval by configuring a new service date. The Rosemount 928 must be connected to a wireless network to accurately maintain the current date. Configure service reminders using Field Communicator To configure a service reminder using a Field Communicator, do the following: Procedure 1.
  • Page 83 Reference Manual Configuration 00809-0100-4928 August 2018 3. On the Alert screen, select Service Reminder. 4. On the Service Reminder screen, select Last Service Date.
  • Page 84 8. On the Reminder Mode screen, do one of the following: • Select Disabled to disable the service reminder. • Select Enabled to enable the service reminder. 9. Select OK. 10. On the Service Reminder screen, select Reminder Date. Rosemount 928...
  • Page 85 Reference Manual Configuration 00809-0100-4928 August 2018 11. On the Reminder Date screen, use the numeric keypad to enter the date when the next service is due. 12. Select OK. 13. When you are finished, select Send to implement configuration changes. Configure service reminders using AMS Wireless Configurator To configure a service reminder using AMS Wireless Configurator, do the following:...
  • Page 86 Select Enabled to enable the service reminder. 5. In the Last Service Date box, enter the date on which the last service was performed. 6. In the Service Reminder box, enter the date when the next service is due. Rosemount 928...
  • Page 87 Reference Manual Configuration 00809-0100-4928 August 2018 7. Select Send. 8. In the Confirm Device Configuration Change dialog box, select a reason from the Service Reason list. Select Details if you want to view additional information. 9. Select Yes.
  • Page 88 Reset or restore device settings using Field Communicator Complete the following steps to reset or restore settings on the device using a Field Communicator. Procedure 1. On the Overview screen, select Service Tools. 2. On the Service Tools screen, select Maintenance. Rosemount 928...
  • Page 89 Reference Manual Configuration 00809-0100-4928 August 2018 3. On the Maintenance screen, select Reset/Restore. 4. On the Reset/Restore screen, select one of the following: ™ • Select Device reset to reset the Rosemount 928 electronics. This preserves current user configuration settings.
  • Page 90 Configuration Reference Manual August 2018 00809-0100-4928 • Select Restore Default Settings to return the Rosemount 928, including the currently installed Rosemount 628, to its factory default settings. This deletes user configuration settings. 5. Do one of the following: • Select Cancel to retain the current settings.
  • Page 91 Reference Manual Configuration 00809-0100-4928 August 2018 Reset or restore device settings using AMS Wireless Configurator Complete the following steps to reset or restore settings on the device using an AMS Wireless Configurator. Procedure 1. In the Overview pane, select Service Tools.
  • Page 92 Select Device reset to reset the Rosemount 928 electronics. This preserves current user configuration settings. • Select Restore Default Settings to return the Rosemount 928, including the currently installed Rosemount 628, to its factory default settings. This deletes user configuration settings. Rosemount 928...
  • Page 93 Reference Manual Configuration 00809-0100-4928 August 2018 5. Follow the steps in the wizard to reset the device or restore factory default settings. 2.10.3 Configuring local alarm output ™ If an external device is connected to the Rosemount 928, you can also configure local alarm output options.
  • Page 94 Configuration Reference Manual August 2018 00809-0100-4928 3. On the Alert Setup screen, select Local Output. 4. On the Local Output screen, select Alarm Limit. Rosemount 928...
  • Page 95 Reference Manual Configuration 00809-0100-4928 August 2018 5. On the Alarm Limit screen, enter a gas concentration limit to trigger the local alarm. 6. Select OK. 7. On the Local Output screen, select Alarm Latching. 8. On the Alarm Latching screen, select one of the following: •...
  • Page 96 12. Select OK. Configure local alarm output using AMS Device Configurator Complete the following steps to configure local alarm outputs using an AMS Device Configurator. Procedure 1. In the AMS Device Manager pane, double-click the device icon. Rosemount 928...
  • Page 97 Reference Manual Configuration 00809-0100-4928 August 2018 2. Select Configure. 3. In the Configure pane, select Alert Setup. 4. In the Alarm Limits box, enter an alarm threshold at which to trigger the local alarm output. The default alarm threshold is 5 ppm . 5.
  • Page 98 Configuration Reference Manual August 2018 00809-0100-4928 6. Select Send. 7. In the Confirm Device Configuration Change dialog box, select a reason from the Service Reason list. Select Details if you want to view additional information. 8. Select Yes. Rosemount 928...

  • Page 99: Removing The Power Module

    Reference Manual Configuration 00809-0100-4928 August 2018 2.11 Removing the power module After you have configured the device and the network, remove the power module and replace the rear housing cover. Insert the power module only when the device is ready for commissioning.

  • Page 100: August 2018 00809

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

  • Page 101: Chapter 3 Installation

    928 Wireless Gas Monitor Quick Start Guide that includes basic installation and setup information is shipped with each Rosemount 928 Wireless Gas Monitor. Refer to Dimensional drawings for dimensional drawings of each Rosemount 928 Wireless Gas Monitor variation and mounting configuration. Refer to...

  • Page 102: Wireless Considerations

    ™ the Emerson 701 SmartPower Module - Black into the Rosemount 928 Wireless Gas Monitor to power the device. Power up wireless devices in order of proximity from the Gateway, beginning with the closest. This results in a simpler and faster network installation.
  • Page 103 Reference Manual Installation 00809-0100-4928 August 2018 3.3.2 Antenna position Position the antenna vertically straight up and, if the application requirements allow, approximately three feet (one meter) from any large structure, building, or conductive surface to allow for clear communication with other devices. Figure 3-1: Antenna Position...
  • Page 104 The Rosemount 928 Wireless Gas Monitor is a diffusion-based gas monitor. This means that the target gas must actually come into contact with the electrochemical sensor for the device to register a signal.

  • Page 105: Electrical

    The Rosemount 928 Transmitter is designed to use the B4 Universal Mounting Bracket. This curved, stainless steel bracket includes a U-bolt and fasteners for mounting the Rosemount 928 Transmitter to a 2-in. pipe or pole. The B4 bracket attaches directly to the...
  • Page 106 Installation Reference Manual August 2018 00809-0100-4928 transmitter. You can also use the B4 bracket in other mounting configurations, such as mounting the Rosemount 928 Transmitter to a wall or a panel. 3.6.1 Pipe mounting Required equipment • Mounting kit (part number 03151-9270-0004) —...

  • Page 107: Lcd Display Rotation

    Reference Manual Installation 00809-0100-4928 August 2018 Figure 3-4: Panel Mounting A. 5/16-18 bolts (not supplied) B. 5/16-18 x 1¼-in. bolts for transmitter mounting Dimensions are in inches (millimeters). LCD display rotation You can rotate the LCD display in 90° increments by squeezing the two tabs, pulling the LCD display out, rotating it, and snapping it back into place.

  • Page 108: Grounding The Transmitter

    Note The Rosemount 928 cannot power external devices. It acts as a switch that closes the power circuit of a connected external device when activated by a gas concentration threshold if configured to do so.
  • Page 109 ™ Complete the following steps to connect an external alarm device to the Rosemount 928. Procedure 1. On the Rosemount 928 main housing, remove the rear housing cover to expose the terminal block. A. +Barrier power B. -Barrier power C. +Output to alarm D.
  • Page 110 Installation Reference Manual August 2018 00809-0100-4928 A. External alarm suppression button (optional) • Perform two wire installation. Refer to the following diagram. A. External alarm suppression button (optional) Rosemount 928...
  • Page 111 Reference Manual Installation 00809-0100-4928 August 2018 5. Connect the wiring to the external device according to the manufacturer's instructions. 6. Verify that the external device functions properly. a) Perform a bump test. Refer to Bump testing. b) If available, use the external device's manual test function to verify proper function.
  • Page 112 Installation Reference Manual August 2018 00809-0100-4928 Rosemount 928...

  • Page 113: Chapter 4 Commissioning

    Reference Manual Commissioning 00809-0100-4928 August 2018 Commissioning Safety messages Instructions and procedures in this section may require special precautions to ensure the safety of personnel performing the operations. WARNING Failure to follow these installation guidelines could result in death or serious injury. •...
  • Page 114 The chevron-shaped status bar at the top of the LCD screen indicates the progress of the network join process. When the status bar is filled, the device is successfully connected to the wireless network. Refer to Device diagnostic LCD display screens. Rosemount 928...
  • Page 115 Reference Manual Commissioning 00809-0100-4928 August 2018 4.2.2 Verify communication using Field Communicator Complete the following steps to verify communication on the device using a Field Communicator. Procedure 1. On the Overview screen, select Service Tools. 2. On the Service Tools screen, select Communications.
  • Page 116 4. When finished, select Back to return to the Communications screen. 4.2.3 Verify communication using AMS Wireless Configurator Complete the following steps to verify communications on the device using the AMS Wireless Configurator. Procedure 1. Open AMS Wireless Configurator. Rosemount 928...
  • Page 117 Reference Manual Commissioning 00809-0100-4928 August 2018 2. In the Device Manager pane, expand the wireless network menu. 3. Expand the wireless gateway menu. 4. Select the device list. 5. In the device panel, double-click the device icon. 6. Select Service Tools. 7.

  • Page 118: Using Field Communicator To Change The Network Id And Join Key

    If you need to change the Network ID and Join key, refer to Basic setup using AMS Wireless Configurator. Verifying operation There are four ways to verify operations: ™ • Rosemount 928 Transmitter LCD display • Handheld communication device • Wireless Gateway's integrated web interface • AMS Wireless Configurator Rosemount 928...
  • Page 119 00809-0100-4928 August 2018 If you have configured the Rosemount 928 Transmitter with the Network ID and Join key and sufficient time has passed, the transmitter will be connected to the network. When the device has joined the network, it will be displayed in AMS Device Explorer.

  • Page 120: If There Is An Immediate Alarm

    You may obtain the Network ID and Join Key from the Wireless Gateway on the Setup → Network → Settings page on the web interface. You may change the Network ID and Join ™ Key if necessary. Refer to Joining the Rosemount 928 Transmitter to a wireless network. Rosemount 928...

  • Page 121: Operation And Maintenance

    Reference Manual Operation and maintenance 00809-0100-4928 August 2018 Operation and maintenance Safety messages Instructions and procedures in this section may require special precautions to ensure the safety of personnel performing them. WARNING Failure to follow these installation guidelines could result in death or serious injury. •...

  • Page 122: Lcd Display Screens

    The periodic screens display during device startup after the startup screens and display after the diagnostics screens when you press the Diagnostics button. Primary Variable (PV) screen: Displays the gas concentration level in the configured unit of measure. Rosemount 928...
  • Page 123 Reference Manual Operation and maintenance 00809-0100-4928 August 2018 Secondary Variable (SV) screen: Displays the gas sensor module temperature. Tertiary Variable (TV) screen: Displays the electronics temperature. D E V 2 5. 2 5 DEG C Quaternary Variable (QV) screen): Displays the supply voltage reading at the supply power terminals.
  • Page 124 The chevron bar graph displays 25%. The NIM is disconnected and requires a to exit this mode. Force Join Network Searching: The NIM is actively searching for the network. The chevron bar graph displays 50%. Rosemount 928...
  • Page 125 Reference Manual Operation and maintenance 00809-0100-4928 August 2018 Network Negotiating: The NIM is joining the network. The chevron bar graph displays 50%. Network Connecting: The NIM has joined the network, but is not yet able to send data. The chevron bar graph displays 50%. Network Limited Operation: The NIM has joined the network and is operational, but with limited bandwidth for sending periodic data.
  • Page 126 Bandwidth Limited: The device has not received all of the requested wireless bandwidth required to operate as configured. 5.2.5 Other LCD display screens Diagnostic Button Stuck: This screen displays if the Diagnostic button is pressed and held for too long or is active upon device startup. Rosemount 928...

  • Page 127: Software Features

    Reference Manual Operation and maintenance 00809-0100-4928 August 2018 Software features ™ The following features are available in the Rosemount 928 Wireless Gas Monitor software. • Alert History: Displays latched device status alerts issued due to errors and warnings. You may clear latched status alerts manually by using the Clear Alert History command, by resetting the deivce, by cycling device power, or by changing device configuration settings.

  • Page 128: Resetting Latched Alarms

    Install the power module. Latched alarms do not remain latched following a device reset or power mode failure. You can also clear latched alarms by using the Reset Latched Alarms functions in Field Communicator or AMS Wireless Configurator. Rosemount 928...
  • Page 129 Reference Manual Operation and maintenance 00809-0100-4928 August 2018 5.4.1 Reset latched alarms using Field Communicator Complete the following steps to clear latched alarms with a Field Communicator. Procedure 1. On the Overview screen, select Service Tools. 2. On the Service Tools screen, select Maintenance.
  • Page 130 Operation and maintenance Reference Manual August 2018 00809-0100-4928 3. On the Maintenance screen, select Reset/Restore. 4. On the Reset/Restore screen, select Reset Latch. Rosemount 928...
  • Page 131 Reference Manual Operation and maintenance 00809-0100-4928 August 2018 5. On the Latched alarm will be deactivated screen, select Continue. 6. Select OK. 7. On the Reset Latch screen, select OK. 5.4.2 Reset latched alarms using AMS Wireless Configurator Complete the following steps to reset latched alarms on the device using an AMS Wireless Configurator.
  • Page 132 Operation and maintenance Reference Manual August 2018 00809-0100-4928 2. In the Service Tools pane, select Maintenance. 3. Select the Reset/Restore tab. Rosemount 928...
  • Page 133 Reference Manual Operation and maintenance 00809-0100-4928 August 2018 4. On the Reset/Restore tab, select Reset Latched Alarms. 5. On the Reset Latched Alarms window, select Continue - Reset the latched alarm. 6. On the Reset Latched Alarms window, select Next. 7.

  • Page 134: Clearing Process Alarm History

    You can view and clear process alarm history using Field Communicator or AMS Wireless Configurator. 5.5.1 Clear process alarm history using Field Communicator Complete the following steps to clear the process alarm history on the device using a Field Communicator. Procedure 1. On the Overview screen, select Service Tools. Rosemount 928...
  • Page 135 Reference Manual Operation and maintenance 00809-0100-4928 August 2018 2. On the Service Tools screen, select Alerts. 3. On the Alerts screen, select History.
  • Page 136 4. On the History screen, select Clear Alert History. 5. On the Alert history will be erased screen, the Yes is selected by default. Select OK to erase alert history. 6. On the Clear Alert History screen, select OK to confirm. Rosemount 928...
  • Page 137 Reference Manual Operation and maintenance 00809-0100-4928 August 2018 7. On the Alerts screen, verify that alert history is no longer available. 8. Select Back to return to the Service Tools screen. 5.5.2 Clear process alarm history using AMS Wireless Configurator Complete the following steps to clear process alarm history using an AMS Wireless Configurator.
  • Page 138 Operation and maintenance Reference Manual August 2018 00809-0100-4928 Procedure 1. In AMS Wireless Configurator, select Service Tools. 2. In the Service Tools pane, select Alerts. 3. Select the History tab. 4. On the History tab, select Clear Alarm History. Rosemount 928...

  • Page 139: Calibration History

    Reference Manual Operation and maintenance 00809-0100-4928 August 2018 5. On the Active Alerts tab, verify that the alert history is cleared. Calibration history ™ You can view previous calibration settings for the currently installed Rosemount 628 Gas Sensor Module. 5.6.1 View calibration history using Field Communicator Complete the following steps to view the calibration history of the device using the Field Communicator.
  • Page 140 Operation and maintenance Reference Manual August 2018 00809-0100-4928 Procedure 1. On the Overview screen, select Service Tools. 2. On the Service Tools screen, select Maintenance. 3. On the Maintenance screen, select Routine Maintenance. Rosemount 928...
  • Page 141 Reference Manual Operation and maintenance 00809-0100-4928 August 2018 4. On the Routine Maintenance screen, select Calibration. 5. On the Calibration screen, select Read History.
  • Page 142 7. When you have finished viewing calibration history, select Back to exit. 5.6.2 View calibration history using AMS Wireless Configurator Complete the following steps to view the calibration history of the device using an AMS Wireless Configurator. Procedure 1. On the Overview screen, select Service Tools. Rosemount 928...
  • Page 143 Reference Manual Operation and maintenance 00809-0100-4928 August 2018 2. In the Service Tools pane, select Maintenance. 3. On the Routine Maintenance tab, select Calibration.
  • Page 144 Operation and maintenance Reference Manual August 2018 00809-0100-4928 4. On the Calibration tab, select Read Calibration History. Rosemount 928...

  • Page 145: Sensor Log

    Reference Manual Operation and maintenance 00809-0100-4928 August 2018 In the Calibration History field, the calibration history for the installed sensor is displayed. 5. When you have finished viewing calibration history, select Close. Sensor log You can view status, process variable, and diagnostic history for the currently installed ™...
  • Page 146 Operation and maintenance Reference Manual August 2018 00809-0100-4928 3. On the Maintenance screen, select Routine Maintenance. 4. On the Routine Maintenance screen, select Sensor Log. Rosemount 928...
  • Page 147 Reference Manual Operation and maintenance 00809-0100-4928 August 2018 5. On the Select a database search method screen, select a database search method. • Oldest Record: View the oldest record first. This is the default option. • Newest Record: View the newest record in the database first. •...
  • Page 148 8. When finished viewing sensor log records, click Exit. 5.7.2 View sensor log using AMS Wireless Configurator Complete the following steps to view the sensor log on the device using an AMS Wireless Configurator. Procedure 1. On the Overview screen, select Service Tools. Rosemount 928...
  • Page 149 Reference Manual Operation and maintenance 00809-0100-4928 August 2018 2. In the Service Tools pane, select Maintenance. 3. On the Routine Maintenance tab, select Sensor Log.
  • Page 150 Oldest Record: View the oldest record first. This is the default option. • Newest record: View the newest record in the database first. • Search for a Specific Time Stamp: Enter a specific time stamp by which to view records, including the date and time. 5. Select Next. Rosemount 928...
  • Page 151 Reference Manual Operation and maintenance 00809-0100-4928 August 2018 6. On the Found a record screen, view the sensor log information. Do one of the following: • Select Read Next Record to go to the next record in the sensor log based on the selected database search method.

  • Page 152: Bump Testing

    Bump testing is a process by which the target gas is introduced to the Rosemount Series Gas Sensor Module to verify that the device is functioning properly. Bump testing ™ does not replace calibration. Emerson recommends bump testing throughout the sensor's service life as prescribed by your facility preventative maintenance procedures.
  • Page 153 2. Attach a length of calibration tubing from the regulator on the target gas source to the IP filter inlet on the bottom of the Rosemount 628. 3. Release the target gas from the target gas source. Emerson recommends a flow rate of 1.0 liters per minute to ensure a consistent sensor reading. Note...

  • Page 154: Calibration

    628 Gas Sensor Module The Rosemount 628 Series Gas Sensor Module is connected to the Rosemount 928 Transmitter assembly by means of two tabs which fit into the bottom portion of the housing. The seal between the Rosemount 928 Transmitter housing and the sensor module assembly is designed so that the fit is airtight between the two assemblies when the sensor is properly installed.

  • Page 155: Replace The Power Module

    Calibrating the Rosemount 628 Gas Sensor Module 4. 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 concentrations will not reflect actual measurements;...
  • Page 156 4. Replace the rear housing cover and tighten it to specifications. Tighten until metal touches metal to ensure a proper seal, but do not overtighten. 5. Allow the Rosemount 928 to warm up before continuing. Refer to the following table for maximum warmup times, based on gas type. During the warmup period, the displayed values, alerts, and gas concentrations will not reflect actual measurements;...

  • Page 157: Replace The Ingress Protection Filter

    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 you don't install the IP filter, damage may occur to the sensor inside the Rosemount 628.
  • Page 158 1. Remove the IP filter from the underside of the Rosemount 628 housing by compressing the three snap tabs and pulling the IP filter downwards. 2. Verify that the keying features on the new IP filter are aligned with those on the Rosemount 628 housing. Rosemount 928...

  • Page 159: Service Support

    5.14 Service support ™ To expedite the return process outside of North America, contact your Emerson representative. Whithin the United States, call the Emerson Response Center toll-free number 1-800-654-7768. This center is available 24 hours a day to assist with any needed information or materials.
  • Page 160 Operation and maintenance Reference Manual August 2018 00809-0100-4928 Rosemount 928...

  • Page 161: Chapter 6 Troubleshooting

    Reference Manual Troubleshooting 00809-0100-4928 August 2018 Troubleshooting Overview The following sections provide troubleshooting suggestions for the most common operating problems. If you suspect malfunction despite the absence of any diagnostic messages, follow these procedures to verify that the transmitter hardware and the sensor module are in good working order.
  • Page 162 Refer to Table 3-1. 3. Reset the device by removing and reinstalling the power module. 4. If the condition persists, replace the sensor module. 6.2.7 Supply Voltage Low The supply voltage is low and may soon affect broadcast updates. Rosemount 928...
  • Page 163 Reference Manual Troubleshooting 00809-0100-4928 August 2018 Recommended action Replace the power module. 6.2.8 Database Storage Error The device has failed to write to the database memory. Any data written during this time may have been lost. Recommended actions 1. Reset the device by removing and reinstalling the power module. 2.
  • Page 164 Recommended actions 1. Check the buttons for obstructions. 2. Reset the device by removing and reinstallng the power module. 3. If condition persists, replace the transmitter. 6.2.15 URV/LRV Out of Limits The percentage values are beyond the allowed limits. Rosemount 928...
  • Page 165 Reference Manual Troubleshooting 00809-0100-4928 August 2018 WARNING Always respond to all indications of dangerous concentrations of toxic gas as though they are real until they are proven false. Recommended actions 1. Verify gas type and range. 2. Verify that the correct sensor is installed for the gas type and range. 3.
  • Page 166 928 Wireless Gas Monitor. Recommended action Verify that the Rosemount 628 Gas Sensor Module is the correct type or replace the Rosemount 928 Transmitter with a transmitter compatible with the Rosemount 628. 6.2.22 Local Alarm Output Active The measured gas concentration level was or is above the specified alarm threshold. If so equipped, the local alarm has also been activated.
  • Page 167 Reference Manual Troubleshooting 00809-0100-4928 August 2018 Recommended action Replace the Rosemount 628 immediately. 6.2.25 Replace Sensor Module Soon ™ The Rosemount 628 Gas Sensor Module is nearing the end of its service life. A sensor that cannot accept a new calibration may have reached the end of its service life. Recommended action Replace the Rosemount 628 within the next service interval.

  • Page 168: Lcd Display Troubleshooting

    Recommended actions 1. Check that Power Always On mode is off. 2. Verify device is not installed in extreme temperatures. 3. Verify device is not a network pinch point. 4. Check for excessive network rejoins due to poor connectivity. Rosemount 928...
  • Page 169 Reference Manual Troubleshooting 00809-0100-4928 August 2018 6.4.3 Limited bandwidth error Recommended actions 1. Reduce the update rate on transmitter. 2. Increase communication paths by adding more wireless points. 3. Check that the device has not been online for at least an hour. 4.
  • Page 170 Troubleshooting Reference Manual August 2018 00809-0100-4928 Rosemount 928...

  • Page 171: Appendix A Specifications

    Reference Manual Specifications 00809-0100-4928 August 2018 Specifications Specifications A.1.1 Functional specifications Discrete output, models 928XSS01, 928XUT01 Maximum rating: 28 Vdc, 100 mA On resistance: typical 1 Ohm Wireless output ® IEC 62591 (Wireless HART ) Compliant, 2.4 GHz Antenna radio frequency power output External (WK option) antenna: Maximum of 10 mW (10 dBm) EIRP Extended range, external (WM option) antenna: Maximum of 18 mW (12.5 dBm) EIRP High gain, remote (WN option) antenna: Maximum of 40 mW (16 dBm) EIRP...
  • Page 172 Reference conditions are 70 °F (21 °C) and routing data for three additional network devices. Note Continuous exposure to ambient temperature limits (less than -40 °F or greater than 122 °F [less than -40 °C or greater than 50 °C]) may reduce specified power module life by less than 20 percent. Rosemount 928...
  • Page 173 Reference Manual Specifications 00809-0100-4928 August 2018 Vibration effect Wireless output unaffected when tested according to the requirements of IEC60770-1 field or pipeline with high vibration level (10-60 Hz 0.2 mm displacement peak amplitude/ 60-2000 Hz 3g). Wireless output unaffected when tested according to the requirements of IEC60770-1 field with general application or pipeline with low vibration level (10-60 Hz 0.15 mm displacement peak amplitude/60-500 Hz 2g).

  • Page 174: Dimensional Drawings

    Specifications Reference Manual August 2018 00809-0100-4928 Dimensional drawings ™ Figure A-1: Rosemount 928 Wireless Gas Monitor Dimensions are in inches (millimeters). Rosemount 928...

  • Page 175: Ordering Information

    Reference Manual Specifications 00809-0100-4928 August 2018 ™ Figure A-2: Rosemount 928 Wireless Gas Monitor Mounting Configurations A. 2-in. bolt for pipe mounting (clamp shown) B. ¼-in. x ¼-in. bolts for transmitter mounting C. 5/16-in. bolts for panel mounting (not supplied) D.
  • Page 176 High-gain remote antenna, adapter for black power module (I.S. power module sold separately) A.3.3 Other options The starred options (★) represent the most common options and should be selected for best delivery. The non-starred options are subject to additional delivery lead time. Rosemount 928...
  • Page 177 Reference Manual Specifications 00809-0100-4928 August 2018 Mounting bracket ★ Universal L mounting bracket for 2-in, (5.08 cm) pipe mounting; stainless steel bracket and bolts Configuration ★ Factory configuration date, descriptor, message fields, and wireless parameters Quality documentation ★ Certificate of Compliance Typical model number: 928 X SS 00 2A I5 WA3 WK1 B4 ™...
  • Page 178 Specifications Reference Manual August 2018 00809-0100-4928 Rosemount 928...

  • Page 179: Appendix B Product Certifications

    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.

  • Page 180: Hazardous Location Certificates

    Io - 32 µA Special conditions for safe use (X): ™ 1. For use only with the Emerson Model 701PBKKF, the Computation Systems, Inc. MHM-89004, or the Perpetuum Ltd. IPM1008/IPM74001. 2. The surface resistivity of the antenna is greater than 1 Gigaohm. To avoid electrostatic discharge buildup, it must not be rubbed or cleaned with solvents or dry cloth.Sub...
  • Page 181 Care must be taken into account during installation and use to prevent impact or friction. ™ 3. The equipment shall be powered by Emerson 701PBKKF. An alternative power source shall be the CSI MHM-89004 as this device has output parameters that are equal or less onerous than the parameters of the 701PBKKF.
  • Page 182 Care must be taken into account during installation and use to prevent impact or friction. ™ 3. The equipment shall be powered by Emerson 701PBKKF. An alternative power source shall be the the CSI MHM-89004 as this device has output parameters that are equal or less onerous than the parameters of the 701PBKKF.
  • Page 183 Reference Manual Product certifications 00809-0100-4928 August 2018 ™ Figure B-1: Rosemount 928 Wireless Gas Monitor Intrinisically Safe Installation Drawing...
  • Page 184 Product certifications Reference Manual August 2018 00809-0100-4928 Rosemount 928...

  • Page 185: Appendix C High Gain Remote Antenna Option

    • If the supplied remote mount antenna kit is not installed per these instructions, Emerson is not responsible for wireless performance or non-compliance with spectrum regulations. • Be aware of overhead electrical power lines.

  • Page 186: Installation Considerations

    C.2.8 Ratings ® NEMA 4X and IP66/67 C.2.9 Vibration 3 g maximum vibration Installation considerations C.3.1 Antenna mounting Mount antenna vertically (±5°). C.3.2 Antenna height Mount antenna 14 ft. (4.3 m) above infrastructure with clear line of sight. Rosemount 928...

  • Page 187: Transient And Lightning Considerations

    Reference Manual High gain remote antenna option 00809-0100-4928 August 2018 C.3.3 Coaxial cable Ensure that coaxial cable is securely affixed to the mast to avoid excessive cable movement. C.3.4 Install coaxial drip loop Ensure a drip loop is installed not closer than 1 ft. (0.3 m) from the transmitter. It may also be convenient to affix the drip loop to the lower portion of the mast ensuring that condensation or rainwater will flow away from the coaxial connections.

  • Page 188: Dimensional Drawings

    D. 25 ft. (7.5 m) cable E. Min drip loop Ø12-in. (0.3 m) Install the high gain remote antenna Complete the following steps to install the high gain remote antenna on the transmitter. Procedure 1. Mount the transmitter. Rosemount 928...

  • Page 189: Rosemount

    Reference Manual High gain remote antenna option 00809-0100-4928 August 2018 ™ Refer to Installing the Rosemount Transmitter. Figure C-3: High Gain Remote Antenna A. RF lightning protector 2. Connect the RF lightning protector to the device and tighten. 3. Connect antenna to mounting bracket and tighten nut carefully.
  • Page 190 5. Apply the coaxial sealant around each of the coaxial connections and the lightning arrestor. Verify that the RF connections are completely sealed. 6. Attach the U-bolts to the mounting bracket to position the antenna vertically. Rosemount 928...
  • Page 191 Reference Manual High gain remote antenna option 00809-0100-4928 August 2018 7. Verify that the antenna is positioned vertically. Tighten the U-bolts to the mast.
  • Page 192 High gain remote antenna option Reference Manual August 2018 00809-0100-4928 Rosemount 928...

  • Page 193: Appendix D Alert Message Mapping

    Additional Status bits is available in the Wireless Gateway. Variable mapping contains the device variable and variable mapping indexes for the Rosemount 928 Wireless Gas Monitor. Alert mapping contains the most important alert messages that may be displayed in the ™...
  • Page 194 Electronics Temperature Byte 8 :: Bit 5 The transmitter electronics Beyond Limits temperature has exceeded its safe operating range. Supply Voltage Low Byte 8 :: Bit 4 The supply voltage is low and may soon affect broadcast updates. Rosemount 928...
  • Page 195 Reference Manual Alert message mapping 00809-0100-4928 August 2018 Table D-4: Maintenance Alerts (M) (continued) Message Additional status Description Capacity Denied Byte 12 :: Bit 0 The device has failed to acquire the wireless communication bandwidth required for the configured update rate. Location of the alert in the HART command 48 Status field Table D-5: Advisory Alerts (A) Message...
  • Page 196 2018 Emerson. All rights reserved. youtube.com/RosemountMeasurement The Emerson logo is a trademark and service mark of Emerson Electric Co. Rosemount is a google.com/+RosemountMeasurement mark of one of the Emerson family of companies. All other marks are the property of their AnalyticExpert.com respective owners.

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