MSA Ultima X Series Safety Manual
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MSA Ultima X Series Safety Manual

Gas monitor
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Ultima
Gas Monitor
Safety Manual
SIL 2 Certified
The Ultima X Series Gas Monitor is qualified as an SIL
2 device under IEC 61508 and must be installed, used,
and maintained in accordance with this manual if
compliance with this IEC functional safety standard
is desired. Failure to do so can result in a reduced
safety level.
In the U.S., to contact your nearest stocking location, dial toll-free 1-800-MSA-INST
To contact MSA International, dial (724) 776-8626.
© MSA 2015 - All Rights Reserved
This manual is available on the internet at www.msasafety.com.
Inquiries can also be e-mailed to customer.service@msasafety.com.
Manufactured by
MSA NORTH AMERICA
1000 Cranberry Woods Drive, Cranberry Township, PA 16066
(L)- Rev 1
X Series
®
Y-HLR
10100751

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Summary of Contents for MSA Ultima X Series

  • Page 1 Gas Monitor Safety Manual SIL 2 Certified The Ultima X Series Gas Monitor is qualified as an SIL 2 device under IEC 61508 and must be installed, used, and maintained in accordance with this manual if compliance with this IEC functional safety standard is desired.

  • Page 2: Table Of Contents

    Chapter 2, Using the Ultima X Series Gas Monitors ..2-1 Safety Function ........2-1 Safety Integrity Level .
  • Page 3 Terms and Definitions .....3-1 List of Tables Table 2-1. Proof Test for Ultima X Series Gas Detectors ..2-4 Table 2-2. Expected Alarm Relay States Gas Type ..2-5...

  • Page 4: Chapter 1, Purpose And Scope

    Purpose and Scope Purpose In order to maintain the designed safety level (SIL 2) for installation and operation of the MSA Ultima X Series Gas Monitors, this safety manual provides the specific requirements of user responsibilities in the following areas: •...

  • Page 5: Using The Ultima X Series Gas Monitors

    Chapter 2, Using the Ultima X Series Gas Monitors Safety Function The safety function of the Ultima X Gas Monitor is to: • monitor gas concentration • update outputs based on this monitoring. • The outputs consist of: • an analog output that reflects the gas concentration •...

  • Page 6: Diagnostic Response Time

    The amount of time it takes to detect the presence of a gas varies based on sensor type. • Refer to this information in TABLE 3-1 of the Ultima X Series Gas Monitor Instruction Manual (P/N 10036101). Update Time The state of the analog output and the relay outputs is updated every second or sooner.

  • Page 7: Proof Testing

    NOTE: these settings are sensor-specific and may vary depending on the sensor installed. • The following sensor settings may be changed: • setpoints • direction of the alarm • latching or nonlatching • enabled or not enabled. • If necessary, these items can be configured using the HART or the Ultima X Controller.
  • Page 8 Table 2-1. Proof Test for Ultima X Series Gas Detectors TEST EXPECTED OUTCOME Bypass the safety function or take None appropriate action to avoid a false trip. Note that calibration output signal must be disabled so the analog output can be measured during the test.

  • Page 9: Routine Maintenance

    Calibrate monitors with catalytic combustible sensors when they have been exposed to non-combustible chemicals known to reduce sensor sensitivity (Silanes, Silicates, Silicones and Halides). Use the regular calibration method given in the Ultima X Series Gas Monitor instruction manual (P/N 10036101).

  • Page 10: Periodic Sensor Replacement For Oxygen, Toxic, And Catalytic Combustible Sensors

    After calibration, read all messages on the LCD display and correct any errors. Change the sensor immediately if the following messages occur: • "SENSOR WARNING" • "REPLACE SENSOR". Refer to the "Limitations Associated with Toxic Gas and Combustible Gas Monitoring" section later in this chapter. Periodic Sensor Replacement for Oxygen, Toxic, and Catalytic Combustible sensors These sensors have a limited lifetime and must be replaced periodically...

  • Page 11: Repair And Replacement

    If the windows appear dirty during the inspection, perform the XIR cleaning procedure given in Chapter 4 of the Ultima X Series Gas Monitor instruction manual (P/N 10036101). NOTE: Personnel performing Ultima X proof test should be trained in SIS operations, including bypass procedures, Ultima X Monitor maintenance and company management of change procedures.

  • Page 12: Modification

    NOTE: Any field failure of the Ultima X Series Gas Monitor should be reported to MSA. Modification Any modifications [allowed per the Ultima X Monitor Manual (P/N 10036101)] made to the Ultima X Monitor configuration after the system is commissioned must be validated to ensure they were made properly.

  • Page 13: Application Limits

    Application Limits Required Output Load Current output in the 3-wire operation mode is designed for loads between 0 to 500 ohms when operated from power supply voltage greater than 24 V. Required Compliance Voltage To ensure proper operation, the transmitter in 2-wire current output operation mode must have access to a minimum of 8 V at the maximum current output level.
  • Page 14 IR technology and toxic gas monitoring to environments where the monitored gas is not expected to be normally present. • Continuous presence of such gas may shorten sensor life and impedes the negative drift diagnostic. • If monitored gas is found to be in the environment for an extended period of time, recalibrate the sensor to ensure proper operation.
  • Page 15 Chapter 3, Terms and Definitions FMEDA Failure Mode Effect and Diagnostic Analysis Safety Instrumented Function Safety Integrity Level SIS (Safety Instrumented System) Implementation of one or more Safety Instrument Functions composed of any combination of sensor(s), logic solver(s), and final element(s) Safety Life Cycle Safety Freedom from unacceptable risk of harm...
  • Page 16 Safety Assessment Investigation determining the safety achieved by safety-related systems Further definitions of terms used for safety techniques and measures...

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