Emerson Rosemount 928 Reference Manual
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Emerson Rosemount 928 Reference Manual

Emerson Rosemount 928 Reference Manual

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

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Summary of Contents for Emerson Rosemount 928

  • Page 1 Reference Manual 00809-0100-4928, Rev AG February 2023 Rosemount ™ Wireless Gas Monitor...
  • Page 2 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.
  • Page 3  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.

  • Page 5: Table Of Contents

    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 Rosemount 928...
  • Page 6 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...

  • Page 7: Chapter 1 Introduction

    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.

  • Page 8: Device Overview

    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.

  • Page 9: Chapter 2 Configuration

    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 Rosemount 928...
  • Page 10 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...
  • Page 11 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 (H One minute Oxygen (O Seven minutes Rosemount 928...

  • Page 12: Install The Power Module

    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.

  • Page 13: Bench Configuration

    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: •...

  • Page 14: Hart ® Menu Trees

    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.
  • Page 15 Reference Manual Configuration 00809-0100-4928 February 2023 Figure 2-3: Field Communicator Overview Menu Tree Rosemount 928...
  • Page 16 Configuration Reference Manual February 2023 00809-0100-4928 Figure 2-4: Field Communicator Configure Menu Tree Emerson.com/Rosemount...

  • Page 17: 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 ™...
  • Page 18 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. Emerson.com/Rosemount...
  • Page 19 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. Rosemount 928...
  • Page 20 • 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. Emerson.com/Rosemount...
  • Page 21 Reference Manual Configuration 00809-0100-4928 February 2023 • 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. Rosemount 928...
  • Page 22 Configuration Reference Manual February 2023 00809-0100-4928 3. On the Device Information screen, select Next. Emerson.com/Rosemount...
  • Page 23 00809-0100-4928 February 2023 4. On the Basic Setup screen, select OK to confirm successful completion of basic setup. Basic setup using AMS Wireless Configurator Procedure 1. On the Guided Setup tab, in the Initial Setup field, select Basic Setup. Rosemount 928...
  • Page 24 • Message: Enter a message up to 32 alphabetic, numeric, and special characters long. The Message field is left blank by default, does not display if left blank, and may be used for any purpose. Emerson.com/Rosemount...
  • Page 25 One new device joining an existing network with multiple devices may take up to five minutes. Multiple new devices joining an existing network may take up to 60 minutes. Rosemount 928...
  • Page 26 2. On the Join to Network screen, use the numeric keypad to enter the WirelessHART ® network ID. The network ID must match the Wireless Gateway network ID. Refer to the System Settings → Network → Network Settings page in the Wireless Gateway web-based user interface for the network ID. 3. Select OK. Emerson.com/Rosemount...
  • Page 27 5. Select OK. 6. Repeat Step 4 Step 5 for parts 2 - 4 of the join key. Join a wireless network using AMS Wireless Configurator Procedure 1. On the Guided Setup tab, in the Wireless field, select Join Device to Network. Rosemount 928...
  • Page 28 Consider the speed with which you want to be alerted to a dangerous condition of toxic gas. Emerson does not recommend reporting by exception for the Rosemount 928 Wireless Gas Monitors or Emerson Wireless Gateways due to its potential adverse effect on Wireless Gateway capacity and network integrity.
  • Page 29 2.7.4  Configuring the update rate The Rosemount 928 takes measurements every two seconds. The update rate is the frequency at which new measurements and device statuses are transmitted over the wireless network. You may change the update rate during configuration. The update rate range is one second to sixty minutes.
  • Page 30 Reference Manual February 2023 00809-0100-4928 • a. For update rates greater than 60 seconds, select 61-3600 seconds from the list. b. Enter the update rate in number of seconds. For example, enter 1800 seconds for 30 minutes. c. Select OK. Emerson.com/Rosemount...
  • Page 31 Reference Manual Configuration 00809-0100-4928 February 2023 3. On the Emerson Wireless Gateway Optimizations screen, select Yes - Enable Optimizations to save and use wireless optimizations or select No - Disable Optimizations to reject wireless optimizations. Note Wireless gateway optimizations combine process measurement and device diagnostic messages from field devices to the wireless gateway, saving network bandwidth.
  • Page 32 2. On the Configure Update Rate screen, do one of the following: • a. Select an update rate from 1 to 60 seconds from the list. b. Select Next. Emerson.com/Rosemount...
  • Page 33 Reference Manual Configuration 00809-0100-4928 February 2023 • a. Select 61-3600 from the list. b. Type the number of seconds for an update rate from 61 seconds to 60 minutes. For example, enter 1800 seconds for 30 minutes. Rosemount 928...
  • Page 34 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 Disabling the display mode or selecting a less frequent display mode extends power module life. Configure the device display mode using Field Communicator Procedure 1. On the Guided Setup screen, select Configure Device Display. Rosemount 928...
  • Page 36 When a handheld communication device is connected to the transmitter, 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. Selecting and displaying Disabled takes effect immediately. Emerson.com/Rosemount...
  • Page 37 AMS Device Manager status screen, on the 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 is not connected to a wireless network.
  • Page 38 Configure process alerts using 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. 3. On the selected process alert screen, select Mode. Emerson.com/Rosemount...
  • Page 39 Reference Manual Configuration 00809-0100-4928 February 2023 4. On the Mode screen, select Enabled. 5. Select OK. Rosemount 928...
  • Page 40 6. On the selected process alert screen, select Alert Limit. 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. Emerson.com/Rosemount...
  • Page 41 11. Repeat Step 2 through Step 10 as necessary to configure additional process alerts. 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. Rosemount 928...
  • Page 42 Configure process alerts using AMS Wireless Configurator Procedure 1. On the Guided Setup tab, in the Optional Setup field, select Configure Process Alerts. The Process Alerts window is displayed. 2. In the Mode list, in the HI-HI Alarm field, select Enabled to enable the alarm. Emerson.com/Rosemount...
  • Page 43 3. In the Alert Limit field, 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 44: Calibrating The Sensor

    Calibrating the sensor Calibrating the sensor ensures that the analog, digital, and discrete outputs accurately transmit the target gas concentrations registered by the module. Although Emerson calibrated the device at the factory, you must calibrate it at the following times to ensure accuracy and correct operation: •...
  • Page 45 Note Emerson developed the Field Communicator guided setup configuration procedures in this manual using Emerson AMS Trex Device Communicator. The menus are identical to those found in other Field Communicators, but you navigate using touch screens rather than fast keys. Refer to the manual for your handheld communication device for more information.
  • Page 46 Configuration Reference Manual February 2023 00809-0100-4928 4. On the Configure screen, select Guided Setup. 5. On the Guided Setup screen, select Calibrate Sensor. 6. Select OK to accept the current date as the calibration date and continue. Emerson.com/Rosemount...
  • Page 47 S and CO) or a cylinder of 0% oxygen concentration calibration gas (O ) and a length of calibration tubing (PVC tubing, 3/16-in. ID, 5/16-in. OD). b) Install a regulator on the clean air/percent known oxygen content gas cylinder. Rosemount 928...
  • Page 48 Step 11. f) Turn off the clean air (or percent oxygen specified calibration gas) when the sensor is correctly zeroed. 9. Select OK when the zero measurement reading stabilizes. Note Negative measurement readings may occur and are normal during zeroing. Emerson.com/Rosemount...
  • Page 49 Reference Manual Configuration 00809-0100-4928 February 2023 10. Wait while the Field Communicator performs zero adjustment. 11. Select OK to accept the new zero. Rosemount 928...
  • Page 50 13. Select OK. 14. Install a regulator on the target gas source.  WARNING Toxic gas Before performing the next step, verify that the regulator is closed to avoid releasing target gas into the air during calibration. Emerson.com/Rosemount...
  • Page 51 IP filter assembly (part number 00628-9000-0001). 16. 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 52 Refer to Figure 2-6. Figure 2-6: Typical Calibration Profile A. Gas concentration ppm B. Time (in seconds) C. Gas concentration measurement has stabilized 18. Select OK when the gas concentration measurement stabilizes at or near the target gas concentration level. Emerson.com/Rosemount...
  • Page 53 IP filter is not clogged or obstructed. A sensor that cannot accept a new calibration may have reached the end of its service life. Replace the sensor and repeat this procedure. Refer to Replace the gas sensor. Rosemount 928...
  • Page 54 Service reminders for more information. 23. Shut off the target gas flow at the regulator. 24. Detach the calibration tubing from the regulator on the target gas source and from the IP filter inlet on the bottom of the sensor. Emerson.com/Rosemount...
  • Page 55 Reference Manual Configuration 00809-0100-4928 February 2023 2.8.2  Calibrate using AMS Wireless Configurator Procedure 1. On the Guided Setup tab, in the Initial Setup field, select Calibrate Sensor. Rosemount 928...
  • Page 56 Configuration Reference Manual February 2023 00809-0100-4928 2. On the Calibrate Sensor screen, select Next to accept the current date as the calibration date and continue. Emerson.com/Rosemount...
  • Page 57 Obtain a cylinder of verified clean air (H S and CO) or a cylinder of 0% oxygen concentration calibration gas (O ) and a length of calibration tubing (PVC tubing, 3/16-in. ID, 5/16-in. OD). Rosemount 928...
  • Page 58 Perform Step 5 through Step 7. f) Turn off the clean air/known percent oxygen specified calibration gas when the sensor is correctly zeroed. Emerson.com/Rosemount...
  • Page 59 Reference Manual Configuration 00809-0100-4928 February 2023 5. Select Next when the zero measurement reading stabilizes. 6. Select Next. Rosemount 928...
  • Page 60 Configuration Reference Manual February 2023 00809-0100-4928 7. Select Accept New Zero. 8. Select Next. Emerson.com/Rosemount...
  • Page 61 9. On the Calibrate Sensor screen, enter a gas concentration level. 10. Select Next.  WARNING Toxic gas The regulator may release gas into the air during calibration. Before starting the next step, verify that the regulator is closed. Rosemount 928...
  • Page 62 11. Install a regulator on the target gas source. 12. Attach a length of calibration tubing (PVC tubing, 3/16-in. ID, 5/16-in. OD) from the regulator on the target gas source to the IP filter inlet on the bottom of the sensor. Emerson.com/Rosemount...
  • Page 63 00809-0100-4928 February 2023 13. 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 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.
  • Page 64 Configuration Reference Manual February 2023 00809-0100-4928 15. Select Next when the gas concentration measurement stabilizes at or near the target gas concentration level. Emerson.com/Rosemount...
  • Page 65 Reference Manual Configuration 00809-0100-4928 February 2023 16. Wait while the AMS Wireless Configurator calibrates. When the calibration process finishes, the new adjusted reading is displayed. 17. Select Next. Rosemount 928...
  • Page 66 Configuration Reference Manual February 2023 00809-0100-4928 18. Select Accept calibration. Emerson.com/Rosemount...

  • Page 67: Manual Setup

    Note 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 68 2. Connect the HART communication leads to the COMM terminals on the terminal block. 3. Start your handheld communicator device. If necessary, open the HART Field Communicator on your handheld device to establish HART communication. Refer to the manual for your handheld communicator device for more information. Emerson.com/Rosemount...
  • Page 69 Configuring security settings, and Configuring device information 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: Rosemount 928...
  • Page 70 Configuration Reference Manual February 2023 00809-0100-4928 Configure display options using Field Communicator Procedure 1. On the Manual Setup screen, select Display 2. On the Display screen, select Display Options Emerson.com/Rosemount...
  • Page 71 3. Select a display option or options to alternate displaying with the primary variable (gas concentration): • Concentration • Percent of Range • Sensor Temp (gas sensor module temperature) • Electronics Temp (electronics temperature) • Supply Voltage 4. Select 5. Select OK. 6. Repeat Step 3 through Step 5 for additional display options. Rosemount 928...
  • Page 72 Select Discard to return to the Display Options screen and discard pending changes. Select OK to confirm or Cancel to return to the previous screen. • Select Send to send display option changes to the device. 9. Select Back to return to the Manual Setup screen. Emerson.com/Rosemount...
  • Page 73 2. On the Display tab, select a display option or options to alternate displaying with the primary variable (gas concentrations). • Concentration • Percent of Range • Sensor Temperature (gas sensor module temperature) • Electronics Temperature • Supply Voltage 3. Select Send. Rosemount 928...
  • Page 74 5. Select Yes. 2.9.2  Configuring security settings You have the option to configure security settings to protect the device from unauthorized configuration changes. Configure security settings using a Field Communicator Procedure 1. On the Manual Setup screen, select Security. Emerson.com/Rosemount...
  • Page 75 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 76 To change this option, do the following: a. Select Lock/Unlock. b. In the HART Lock list, select Lock or Unlock to change the setting. Emerson.com/Rosemount...
  • Page 77 Configuration 00809-0100-4928 February 2023 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 78 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 using the virtual keypad. The Tag field is left blank by default and does not display if left blank. Emerson.com/Rosemount...
  • Page 79 The Message field is blank by default, does not display if left blank, and may be used for any purpose. • 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. Rosemount 928...
  • Page 80 Configuration Reference Manual February 2023 00809-0100-4928 3. When you have finished making changes, select Send. 4. On the Send screen, do one of the following: • Select Cancel to return to the Device Information screen. Pending changes are preserved. Emerson.com/Rosemount...
  • Page 81 Select Send to send display option changes to the device. 5. Select Back to return to the Manual Setup screen. Configure device information using AMS Wireless Configurator Procedure 1. On the Manual Setup page, select the Device Information tab. Rosemount 928...

  • Page 82: Advanced Options

    2.10.1  Service reminders You can configure service reminders for regular maintenance tasks such as calibration, bump testing, power module replacement, and sensor replacement. The device issues an Emerson.com/Rosemount...
  • Page 83 The transmitter must be connected to a wireless network to accurately maintain the current date. Configure service reminders using Field Communicator Procedure 1. On the Overview screen, select Configure. 2. On the Configure screen, select Alert Setup. Rosemount 928...
  • Page 84 Configuration Reference Manual February 2023 00809-0100-4928 3. On the Alert screen, select Service Reminder. 4. On the Service Reminder screen, select Last Service Date. Emerson.com/Rosemount...
  • Page 85 Reference Manual Configuration 00809-0100-4928 February 2023 5. On the Last Service Date screen, use the numeric keypad to enter the date on which the last service was performed. 6. Select OK. 7. On the Service Reminder screen, select Reminder Mode. Rosemount 928...
  • Page 86 10. On the Service Reminder screen, select Reminder Date. 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. Emerson.com/Rosemount...
  • Page 87 Reference Manual Configuration 00809-0100-4928 February 2023 Configure service reminders using AMS Wireless Configurator Procedure 1. In the Overview pane, select Configure. 2. On the Configure pane, select Alert Setup. Rosemount 928...
  • Page 88 Select Enabled to enable the service reminder. 5. In the Last Recorded Service Date field, enter the date on which the last service was performed. 6. In the Service Reminder Date field, enter the date when the next service is due. 7. Select Send. Emerson.com/Rosemount...
  • Page 89 Service Reason list. Select Details if you want to view additional information. 9. Select Yes. 2.10.2  Reset or restore device settings Reset or restore device settings using Field Communicator Procedure 1. On the Overview screen, select Service Tools. Rosemount 928...
  • Page 90 Configuration Reference Manual February 2023 00809-0100-4928 2. On the Service Tools screen, select Maintenance. 3. On the Maintenance screen, select Reset/Restore. Emerson.com/Rosemount...
  • Page 91 • Select Cancel to retain the current settings. • Select Continue to reset configuration settings or to restore factory default settings. • Select OK to continue. • Select Cancel to return to the previous screen without making changes. Rosemount 928...
  • Page 92 Configuration Reference Manual February 2023 00809-0100-4928 Reset or restore device settings using AMS Wireless Configurator Procedure 1. In the Overview pane, select Service Tools. 2. In the Service Tools pane, select Maintenance. Emerson.com/Rosemount...
  • Page 93 Select Restore Default Settings to return the monitor, including the currently installed sensor, to its factory default settings. This deletes user configuration settings. 5. Follow the steps in the wizard to reset the device or restore factory default settings. Rosemount 928...
  • Page 94 Configure local alarm output using a Field Communicator Complete the following steps to configure local alarm output options using a Field Communicator. Procedure 1. On the Overview screen, select Configure. 2. On the Configure screen, select Alert Setup. Emerson.com/Rosemount...
  • Page 95 Reference Manual Configuration 00809-0100-4928 February 2023 3. On the Alert Setup screen, select Local Output. 4. On the Local Output screen, select Alarm Limit. Rosemount 928...
  • Page 96 Not Latched: If you select this option, the local alarm is not latched. This is the default option. • Latch Conc Alarms: If you select this option, the local alarm output latches for gas concentration alarms. Refer to Resetting latched alarms for information about resetting latched alarms. 9. Select OK. Emerson.com/Rosemount...
  • Page 97 Measurement Value Only: If you select this option, only gas concentration alerts above the specified threshold trigger the local alarm. This is the default option. • All Measurement Alerts: If you select this option, all gas concentration alerts trigger the local alarm. 12. Select OK. Rosemount 928...
  • Page 98 1. In the AMS Device Manager pane, double-click the device icon. 2. Select Configure. 3. In the Configure pane, select Alert Setup. 4. In the Alarm Limit field, enter an alarm threshold at which to trigger the local alarm output. The default alarm threshold is 5 ppm. Emerson.com/Rosemount...
  • Page 99 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 100: Remove Power Module

    Insert the power module only when the device is ready for commissioning.  CAUTION The power module may be damaged if dropped from heights in excess of 20 ft. (6.10 m). Use caution when handling it. Emerson.com/Rosemount...

  • 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. Refer to Dimensional drawingssection for the dimensional drawings of each transmitter variation and mounting configuration. Refer to Figure B-1 for an instrinsically safe installation drawing.

  • Page 102: Wireless Considerations

    Power up sequence Only install the transmitter and all other wireless devices after you have installed the wireless gateway and the gateway is functioning properly. Install the Emerson 701 SmartPower Module - Black into the transmitter to power the device. Power up wireless ™...
  • Page 103 The Rosemount 928 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 104: Electrical

    3.4.1  Handling the power module The Rosemount 928 is self-powered. The included Emerson 701 SmartPower Module-Black contains two "C" size primary lithium/thionyl chloride batteries. Each battery contains approximately 1 oz. (2.5 grams) of lithum, for a total of 2 oz. (5 grams) in each pack.

  • Page 105: Install The Transmitter

    Two 5/16-18 x 1¼-in. bolts — Two washers • A ¼-in. combination wrench and adjustable wrench Figure 3-3: Pipe Mounting Dimensions are in inches [millimeters]. A. 2-in. bolt for pipe mounting (clamp shown) B. 5/16-18 x 1¼-in. bolts for transmitter mounting Rosemount 928...
  • Page 106 A ¼-in. combination wrench or adjustable wrench • Two 5/16-18 bolts with nuts and washers (not included) Figure 3-4: Panel Mounting A. 5/16-18 bolts for panel mounting (not supplied) B. 5/16-18 x 1¼-in. bolts for transmitter mounting Dimensions are in inches [millimeters]. Emerson.com/Rosemount...

  • Page 107: Rotate Lcd Display

    Examples of alarm mechanism options include: • Audible alarm • Visual alarm (for example: a flashing light) • Initiate action (for example: close valves, initiate facility evacuation, call emergency services) Rosemount 928...
  • Page 108 Intrinsically Safe (IS) input power supply. Another set of two input wires is used for a separate IS alarm mechanism. • Two-wire: This connection method combines an IS power source, such as an internal battery, and alarm device into one package. You may also add an optional, customer-supplied alarm suppression button. Emerson.com/Rosemount...
  • Page 109 4. Connect the wiring to the external device on the terminal block according to the terminal labels. Do one of the following: Note Shield alarm wiring for noise immunity. • Perform a four-wire installation. This is the most common configuration. Refer to Figure 3-5. Rosemount 928...
  • Page 110 Installation Reference Manual February 2023 00809-0100-4928 Figure 3-5: Four-Wire Installation A. Intrinsically Safe power (in) B. External alarm C. External alarm suppression button (optional) • Perform a two-wire installation. Refer to Figure 3-6. Emerson.com/Rosemount...
  • Page 111 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. Refer to the external device documentation for more information. Rosemount 928...
  • Page 112 Installation Reference Manual February 2023 00809-0100-4928 Emerson.com/Rosemount...

  • Page 113: Chapter 4 Commissioning

    In order for the transmitter to communicate with the wireless gateway, and ultimately the host system, you must configure the transmitter to communicate with the wireless network. This step is the wireless equivalent of connecting wires from a transmitter to Rosemount 928...
  • 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. Emerson.com/Rosemount...
  • Page 115 Reference Manual Commissioning 00809-0100-4928 February 2023 4.2.2  Verify communication using Field Communicator Procedure 1. On the Overview screen, select Service Tools. 2. On the Service Tools screen, select Communications. 3. Verify the following communications information. Rosemount 928...
  • Page 116 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. 2. In the Device Manager pane, expand the wireless network menu. Emerson.com/Rosemount...
  • Page 117 8. On the Communications tab, in the Join Status field, verify that all four network join steps are completed. 4.2.4  Verify communication using the Wireless Gateway Open the Wireless Gateway web interface. This page shows whether the device has joined the network and is communicating properly. Rosemount 928...

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

    If you have configured the 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. Emerson.com/Rosemount...

  • Page 119: If There Is An Immediate Alarm

    Refer to Device diagnostic LCD display screens. 4.6  If there is an immediate alarm  WARNING Alarm If the device joins the network and immediately issues an alarm, respond as though the alarm is real until it is proven false. Rosemount 928...

  • Page 120: Troubleshoot Communication

    You may obtain the network ID and join key from the wireless gateway on the Setup →  Network →  Setttings page on the web interface. You may change the Network ID and Join Key if necessary. Refer to Joining the transmitter to a wireless network. Emerson.com/Rosemount...

  • Page 121: Operation And Maintenance

    Intrinsically Safe or non-incendive field wiring practices. When connecting an external device to the Rosemount 928'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.

  • Page 122: Lcd Display Screens

    Periodic 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. Emerson.com/Rosemount...
  • Page 123 These screens display automatically when the device is operating properly and you have pressed the Diagnostic button. These screens also display during startup. Device Information Tag: A user-created tag eight characters long that does not display if all characters are blank. ABCDE Rosemount 928...
  • Page 124 Join process to begin. The chevron bar graph displays 25 percent. Network Disconnect: The NIM is disconnected and requires a Force Join exit this mode. Network Searching: The NIM is actively searching for the network. The chevron bar graph displays 50 percent. Emerson.com/Rosemount...
  • Page 125 Check additional status screens for more information about the warning source. Supply Failure: The terminal voltage has dropped below the minimum level for safe operation. Variable readings, writing to non-volatile memory, and database storage may be susceptible to failure. SUPLY FAILUR Rosemount 928...
  • Page 126 Check the sensor and sensor wiring connections. Check additional status for more detailed information about the failure source. Bandwidth Limited: The device has not received all of the requested wireless bandwidth required to operate as configured. Emerson.com/Rosemount...

  • Page 127: Software Features

    5.3  Software features The following features are available in the Rosemount 928 software. • Alert History: Displays latched device status alerts issued due to errors and warnings. You may clear latched status alerts manually by using the...

  • Page 128: Resetting Latched Alarms

    You can clear latched alarms by removing and reinstalling the power module to power the device off and back on again. Refer to Remove power module Install the power module. Latched alarms do not remain latched following a device reset or power mode failure. You can also clear latched Emerson.com/Rosemount...
  • Page 129 Reset Latched Alarms functions in Field Communicator or AMS Wireless Configurator. 5.4.1  Reset latched alarms using Field Communicator Procedure 1. On the Overview screen, select Service Tools 2. On the Service Tools screen, select Maintenance Rosemount 928...
  • Page 130 Operation and maintenance Reference Manual February 2023 00809-0100-4928 3. On the Maintenance screen, select Reset/Restore 4. On the Reset/Restore screen, select Reset Latch Emerson.com/Rosemount...
  • Page 131 Reference Manual Operation and maintenance 00809-0100-4928 February 2023 5. On the Latched alarm will be deactivated screen, select Continue 6. Select OK. 7. On the Reset Latch screen, select OK. Rosemount 928...
  • Page 132 Operation and maintenance Reference Manual February 2023 00809-0100-4928 5.4.2  Reset latched alarms using AMS Wireless Configurator Procedure 1. In AMS Wireless Configurator, select Service Tools. 2. In the Service Tools pane, select Maintenance Emerson.com/Rosemount...
  • Page 133 Reference Manual Operation and maintenance 00809-0100-4928 February 2023 3. Select the Reset/Restore tab. 4. On the Reset/Restore tab, select Reset Latched Alarms. Rosemount 928...
  • Page 134 6. On the Reset Latched Alarms window, select Next. 7. Select Next. 8. Select Finish. Note You can also access Reset Latched Alarms in Field Communicator and in AMS Wireless Configurator by navigating to Service Tools → Active Alerts and Configure → Alert Setup → Process Alerts. Emerson.com/Rosemount...

  • Page 135: 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 Procedure 1. On the Overview screen, select Service Tools 2. On the Service Tools screen, select Alerts Rosemount 928...
  • Page 136 Operation and maintenance Reference Manual February 2023 00809-0100-4928 3. On the Alerts screen, select History 4. On the History screen, select Clear Alert History Emerson.com/Rosemount...
  • Page 137 Reference Manual Operation and maintenance 00809-0100-4928 February 2023 5. On the Alert history will be erased screen, is selected by default. Select OK to erase alert history. 6. On the Clear Alert History screen, select OK to confirm. Rosemount 928...
  • Page 138 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 Procedure 1. In AMS Wireless Configurator, select Service Tools Emerson.com/Rosemount...
  • Page 139 Reference Manual Operation and maintenance 00809-0100-4928 February 2023 2. In the Service Tools pane, select Alerts. 3. Select the History tab. 4. On the History tab, select Clear Alert History. Rosemount 928...

  • Page 140: Calibration History

    5. On the Active Alerts tab, verify that the alert history is cleared. 5.6  Calibration history You can view previous calibration settings for the currently installed gas sensor module. 5.6.1  View calibration history using a Field Communicator Procedure 1. On the Overview screen, select Service Tools Emerson.com/Rosemount...
  • Page 141 Reference Manual Operation and maintenance 00809-0100-4928 February 2023 2. On the Service Tools screen, select Maintenance 3. On the Maintenance screen, select Routine Maintenance Rosemount 928...
  • Page 142 Operation and maintenance Reference Manual February 2023 00809-0100-4928 4. On the Routine Maintenance screen, select Calibration 5. On the Calibration screen, select Read History Emerson.com/Rosemount...
  • Page 143 The View History screen displays the calibration history for the installed sensor. 7. When you have finished viewing calibration history, select Back to exit. 5.6.2  View calibration history using AMS Wireless Configurator Procedure 1. On the Overview screen, select Service Tools. Rosemount 928...
  • Page 144 Operation and maintenance Reference Manual February 2023 00809-0100-4928 2. In the Service Tools pane, select Maintenance 3. On the Routine Maintenance tab, select Calibration. Emerson.com/Rosemount...
  • Page 145 Reference Manual Operation and maintenance 00809-0100-4928 February 2023 4. On the Calibration tab, select Read Calibration History. In the Calibration History field, the calibration history for the installed sensor is displayed. Rosemount 928...

  • Page 146: Sensor Log

    You can view status, process variable, and diagnostic history for the currently installed Rosemount 628. 5.7.1  View the sensor log using Field Communicator Procedure 1. On the Overview screen, select Service Tools 2. On the Service Tools screen, select Maintenance Emerson.com/Rosemount...
  • Page 147 Reference Manual Operation and maintenance 00809-0100-4928 February 2023 3. On the Maintenance screen, select Routine Maintenance 4. On the Routine Maintenance screen, select Sensor Log Rosemount 928...
  • Page 148 7. On the Found a record screen, view the sensor log information. Do one of the following: • Select to go to the next record in the sensor log based on Read Next Record the selected database search method. This is the default option. Emerson.com/Rosemount...
  • Page 149 Show Additional Status record. This option is available only if additional information is available for the selected record. • Select to leave the sensor log. Exit 8. When finished viewing sensor log records, click Exit Rosemount 928...
  • Page 150 Operation and maintenance Reference Manual February 2023 00809-0100-4928 5.7.2  View sensor log using AMS Wireless Configurator Procedure 1. On the Overview screen, select Service Tools. 2. In the Service Tools pane, select Maintenance Emerson.com/Rosemount...
  • Page 151 Search for a Specific Time Stamp: Enter a specific time stamp by which to view records, including the date and time. 5. Select Next. 6. On the Found a record screen, view the sensor log information. Do one of the following: Rosemount 928...

  • Page 152: Bump Testing

    Bump testing is a process by which the target gas is introduced to the sensor 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 sensor. 3. Release the target gas from the target gas source. Emerson recommends a flow rate of 0.2642 gpm (1.0 lpm) to ensure a consistent sensor reading. Note...

  • Page 154: Calibration

    Align the tabs on the side of the sensor assembly housing. c) Firmly push the sensor assembly into place until both tabs are fully latched to ensure a firm seal. 3. Calibrate the new sensor. Emerson.com/Rosemount...

  • Page 155: Replace The Power Module

    LCD off LCD on Update rate LCD off LCD on lifespan lifespan lifespan lifespan (years) (years) (years) (years) Reference conditions are 70 °F (21 °C), wireless updates of once per minute, and routing data for three additional network devices. Rosemount 928...
  • Page 156 Consult the materials safety data sheet for battery specific information. Shipping considerations Emerson shipped the unit to you without the power module installed. Remove the power module prior to shipping. Each power module contains two "C" size primary lithium batteries. The US Department of...

  • Page 157: Replace The Ingress Protection Filter

    Alternatively, you can power the transmitter with the SmartPower Blue Power Module ™ (Part Number MHM-89004). Refer to the Emerson 701P SmartPower Module - Blue Quick Start Guide for instructions on installing and replacing this alternative power module. 5.13  Replace the Ingress Protection filter The Ingress Protection (IP) filter (part number 00628-9000-0001) protects the sensor inside the gas sensor module from ingress of fluids and solids.
  • Page 158 2. Verify that the keying features on the new IP filter are aligned with those on the gas sensor module housing. 3. Push the new IP filter (part number 00628-9000-0001) upward into the gas sensor module housing and gently push each tab until the three tabs click into place. Emerson.com/Rosemount...

  • Page 159: Service Support

    00809-0100-4928 February 2023 5.14  Service support For technical support, contact your Emerson representative or email safety.csc@emerson.com. The Response Center will ask for product model and serial numbers and will provide a Return Material Authorization (RMA) number. The Response Center will also ask for the process materials to which the product was last exposed.
  • Page 160 Operation and maintenance Reference Manual February 2023 00809-0100-4928 Emerson.com/Rosemount...

  • Page 161: Chapter 6 Troubleshooting

    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. 6.2  Rosemount 928 troubleshooting 6.2.1  Electronics Failure An electronics error that could impact the device measurement reading has occurred.
  • Page 162 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. If logging dynamic data is not needed, the advisory can be safely ignored. Emerson.com/Rosemount...
  • Page 163 3. If not needed, disable this alert. 6.2.12  LO Alarm The primary variable has surpassed the user-defined limit.  WARNING Always respond to all indications of dangerous concentrations of toxic gas as though they are real until they are proven false. Rosemount 928...
  • Page 164 2. Verify that the correct sensor is installed for the gas type and range. 3. Reconfirm sensor configuration. 4. Reset the device by removing and reinstalling the power module. 5. Replace the sensor module. 6.2.16  Gas Alarm Threshold Configuration Invalid One of several user alert configurations is invalid. Emerson.com/Rosemount...
  • Page 165 Verify that the module is the correct type or replace the transmitter with a transmitter compatible with the Rosemount 628 Universal Gas Sensor. 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. Rosemount 928...
  • Page 166 2. If the intention was to measure a different gas type or range, verify that the gas concentration alarm thresholds are correct for the new gas type. a) After confirming the thresholds, acknowledge the condition to clear the error. b) Perform sensor configuration and calibration. Emerson.com/Rosemount...

  • Page 167: Digital Concentration Output Is Not Reacting To Presence Of Target Gas

    Gas sensor module is at the end of its service life. Recommended action Replace with a new module. 6.4  LCD display troubleshooting 6.4.1  LCD display is not operating Potential cause LCD display is not enabled. Recommended action Make sure the LCD display is enabled. Rosemount 928...

  • Page 168: Wireless Network Troubleshooting

    2. Increase communication paths by adding more wireless points. 3. Check that the device has not been online for at least an hour. 4. Check that the device is not routing through a limited routing node. 5. Create a new network with an additional wireless gateway. Emerson.com/Rosemount...

  • Page 169: Appendix A Specifications And Reference Data

    The integral LCD display can display alert state and diagnostic information. Configurable to display updates at each wireless update. Humidity limits Table A-1. Maximum inputs for the Rosemount 928 (ordinary and IS environments) 28 Volts 95 milliamps 650 milliwatts Wireless update rate User selectable, 1 second to 60 minutes A.1.2 ...
  • Page 170 Terminal block and power module pack: PBT Antenna: PBT/PC integrated omnidirectional antenna Conduit entries: ½-14 national pipe thread (NPT) Rosemount 928 weight Low-copper aluminum housing (2A ordering option): 73 ounces (2076 grams) Stainless steel housing (2S ordering option): 143 ounces (4055 grams) Reference conditions are 70 °F (21 °C) and routing data for three additional network devices.
  • Page 171 Note The electrochemical cells in sensor modules have a limited shelf life. Store sensor modules in a cool location that is not excessively humid or dry. Storing sensor modules for long periods may shorten their useful service life. Rosemount 928...

  • Page 172: Dimensional Drawings

    Specifications and reference data Reference Manual February 2023 00809-0100-4928 A.2  Dimensional drawings Figure A-1: Rosemount 928 Dimensions are in inches [millimeters]. Emerson.com/Rosemount...

  • Page 173: Ordering Information

    Reference Manual Specifications and reference data 00809-0100-4928 February 2023 Figure A-2: Rosemount 928 Mounting Configurations Dimensions are in inches [millimeters]. A. 2-in. bolt for pipe mounting (clamp shown) B. ¼-in. x ¼-in. bolts for transmitter mounting A.3  Ordering information Typical model number: 928 X SS 00 2A I5 WA3 WK1 B4  CONFIGURE >...
  • Page 174 The starred offerings (★) represent the most common options and should be selected for the fastest delivery times. The non-starred offerings are subject to additional delivery lead time. Wireless update range, operating frequency, and protocol Code Description User configurable update rate, 2.4 GHz DSSS, IEC 65291 (WirelessHART ® ★ Emerson.com/Rosemount...
  • Page 175 The starred offerings (★) represent the most common options and should be selected for the fastest delivery times. The non-starred offerings are subject to additional delivery lead time. Typical model number: 628 EC TO2 2 F  CONFIGURE >  VIEW PRODUCT > Product description Code Description Universal Gas Sensor ★ Rosemount 928...
  • Page 176 % by volume ★ Sensor range Code Description 0-100 (for H S only) ★ 0-25 (for O only) 0-1000 (for CO only) A.3.5  Spare parts Description Part number Ingress Protection (IP) filter 00628-9000-0001 Spare B4 mounting bracket for Rosemount 928 03151-9270-0004 Emerson.com/Rosemount...

  • Page 177: Appendix B Product Certifications - 928 Wireless Gas Monitor

    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 178: Canada

    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. IPM71008/IPM74001. 2. The surface resistivity of the antenna is greater than 1GΩ. To avoid electrostatic charge build-up, it must not be rubbed or cleaned with solvents or a dry cloth.

  • Page 179: Europe

    Care must be taken into account during installation and use to prevent impact or friction. 3. The equipment shall be powered by Emerson 701PBKKF. Alternative power source shall be CSI MHM-89004 as these devices have output parameters that are equal to or less onerous than the parameters of the 701PBKKF.

  • Page 180: International

    Care must be taken into account during installation and use to prevent impact or friction. 3. The equipment shall be powered by Emerson 701PBKKF. Alternative power source shall be CSI MHM-89004 as these devices have output parameters that are equal to or less onerous than the parameters of the 701PBKKF.

  • Page 181: Japan

    B.12  Brazil IM INMETRO Intrinsically Safe Certificate UL-BR 19.0096X ABNT NBR IEC 60079-0:2013, ABNT NBR IEC 60079-11:2013 Standards Markings Ex ia IIC T4 Ga; T4 (-40°C ≤ Ta ≤ +50°C) Special Conditions for Safe Use (X): See certificate. Rosemount 928...

  • Page 182: Intrinsically Safe Installation Drawing

    Product Certifications - 928 Wireless Gas Monitor Reference Manual February 2023 00809-0100-4928 B.13  Intrinsically Safe installation drawing Figure B-1: Rosemount 928 Wireless Gas Monitor Intrinisically Safe Installation Drawing Emerson.com/Rosemount...

  • Page 183: 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 184: Installation Considerations

    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. C.3.3  Coaxial cable Ensure that coaxial cable is securely affixed to the mast to avoid excessive cable movement. Emerson.com/Rosemount...

  • Page 185: Transient And Lightning Considerations

    When installing the antenna, consider using transient and lightning protection (customer- supplied) on Ethernet, Modbus , and coaxial interface to other equipment. ® C.4.2  RF lightning arrestor ground connection Ensure that a grounding connection is made on the RF lightning arrestor ground connection point. Rosemount 928...

  • Page 186: Dimensional Drawing

    February 2023 00809-0100-4928 C.5  Dimensional drawing Figure C-2: Device Connection and RF Lightning Arrestor 2.75 4 PLS 20.2-ft. [513m] A. Antenna B. Mounting bracket C. Mounting arrestor D. 25 ft. (7.5 m) cable E. Min drip loop Ø12-in. (0.3 m) Emerson.com/Rosemount...

  • Page 187: 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. Refer to Install the transmitter. Figure C-3: High Gain Remote Antenna A. RF lightning protector 2. Connect the RF lightning protector to the device and tighten. Rosemount 928...
  • Page 188 4. Unwind the coaxial cable and connect the cable to both the antenna and the lightning protector connected to the transmitter, leaving one loop minimum for a drip loop. Ensure that the drip loop is lower than the device to allow water to flow away from the device. Emerson.com/Rosemount...
  • Page 189 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. 7. Verify that the antenna is positioned vertically. Tighten the U-bolts to the mast. Rosemount 928...
  • Page 190 High gain remote antenna option Reference Manual February 2023 00809-0100-4928 Emerson.com/Rosemount...

  • Page 191: Appendix D Alert Message Mapping

    This appendix outlines the most important alerts in the HART command 48 Additional ® Status field for the Rosemount 928. The information in this section can be used by DeltaV for alert monitoring and in the Wireless Gateway for Additional Status mapping ™...
  • Page 192 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 Emerson.com/Rosemount...
  • Page 193 A device variable value has surpassed the user-defined limit. Simulation Active Byte 8 :: Bit 0 The device is in simulation mode and may not be reporting actual information. Location of the alert in the HART command 48 Status field. Rosemount 928...
  • Page 194 Emerson Terms and Conditions of Sale are available upon request. The Emerson logo is a trademark and service mark of Emerson Electric Co. Rosemount is a mark of one of the Emerson family of companies. All other marks are the property of their respective owners.

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