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" " WARNING THIS MANUAL MUST BE CAREFULLY READ BY ALL INDIVIDUALS WHO HAVE OR WILL HAVE THE RESPONSIBILITY FOR USING OR SERVICING THE PRODUCT. Like any piece of complex equipment, this instrument will perform as designed only if it is used and serv- iced in accordance with the manufacturer’s instructions.
Chapter 1, Instrument Safety and Certifications The Sirius Multigas Detector is for use by trained and qualified personnel. It is designed to be used when performing a hazard assessment to: • Assess potential worker exposure to combustible and toxic gases and vapors •...
Carefully review the following safety limitations and precautions before placing this instrument in service: • The Sirius Multigas Detector is designed to: • Detect gases and vapors in air only • Detect only specified toxic gases for which a sensor is installed.
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In such cases, the instrument LockAlarm feature activates. Move away from contaminated area immediately. • Do not use the Sirius Multigas Detector to test for combustible or toxic gases in the following atmospheres as this may result in erroneous readings: •...
Only MSA-authorized personnel may repair this unit; otherwise, damage may result. Date of Instrument Manufacture The date of manufacture of your Sirius Multigas Detector is coded into the instrument serial number. • The last three digits represent the month (the letter) and the year (the two-digit number).
Chapter 2, PID Theory and Definitions To support the safe and effective operation of the Sirius Multigas Detector, MSA believes operators should have a working knowledge of how the instrument functions, not just how to make it work. The information presented in this section supplements the hands-on operational instruction provided in the rest of the manual for the PID.
When background hydrocarbon vapors are present, MSA recommends using zero gas air or a carbon filter on the inlet to zero the unit (See Chapter 8, TABLE 8-1, Accessory Parts List).
To determine a response factor for a target chemical, perform the following simple procedure: 1. Calibrate the Sirius Detector using isobutylene as the span gas. 2. On the monitor, set the sample gas name to isobutylene. 3. Apply a known concentration of the target chemical to the monitor and note the concentration reported in the display.
PID setup since PID response factors for a target chemical relative to Isobutylene are different depending on what ener- gy PID bulb is installed. See Chapter 3, “Using the Sirius Multigas Detector” for setup instructions. Failure to follow this warning can result in inaccurate readings that could...
6. Instrument warm-up period 7. Fresh Air Setup option. Last Cal Date The Sirius Multigas Detector is equipped with a “last successful calibration date” feature. The date shown is the last date that all installed sensors were successfully calibrated. "LAST CAL" is displayed with this date in the following format: •...
Failure to follow this warning can result in serious personal injury or death. Persons responsible for the use of the Sirius Multigas Detector must determine whether or not the Fresh Air Setup option should be used. The user's abilities, training and normal work practices must be considered when making this decision.
NOTE: Duration of remaining instrument operation during Battery Warning depends on ambient temperatures. • When the Sirius Multigas Detector goes into Battery Warning: • Battery Life indicator flashes • “BATT WRN” flashes every 15 seconds •...
Sensor Missing Alarm The Sirius Multigas Detector will enter the Sensor Missing alarm if the instrument detects that an enabled sensor is not properly installed in the instrument. For O 2 , CO, and H 2 S sensors, the Sensor Missing feature is checked when the instrument is turned ON and when leaving the Setup mode.
After approximately one minute, the unit automatically turns OFF. PID Alarms The Sirius Multigas Detector will enter the Ion Error, PID Error, PID Failed Span Cal, or the PID Comm Error if the instrument detects that the PID is not functioning properly.
Verifying Pump Operation 1. Turn ON the Sirius Multigas Detector. • The pump motor starts fast and then slows down as the instrument adjusts the power to run the pump. 2. Once gas readings are displayed, plug the free end of the sampling line or probe.
If liquid is sucked into the instrument, read- ings will be inaccurate and the instrument could be dam- aged. We recommend the use of an MSA Sample Probe (P/N 10042621, 10042622, 10040589, or equivalent) contain- ing a special membrane filter, permeable to gas but imper- meable to water, to prevent such an occurrence.
1. Turn ON the Sirius Multigas Detector in clean, fresh air. 2. Verify that readings indicate no gas is present. 3. Attach regulator (supplied with calibration kit) to the cylinder. 4. Connect tubing (supplied with calibration kit) to the regulator.
Figure 3-5b. Instrument in LEL Alarm The Sirius Multigas Detector can be equipped to detect combustible gases in the atmosphere. • Alarms sound when concentrations reach: • Alarm Setpoint or • 100% LEL (Lower Explosive Limit), 5% CH 4 .
OFF the instrument and turning it ON again. Oxygen Measurements (% O 2 ) (FIGURE 3-6) Figure 3-6a. Instrument in Oxygen Alarm Figure 3-6b. Instrument in Oxygen Alarm The Sirius Multigas Detector can be equipped to detect the amount of oxygen in the atmosphere. 3-12...
• Alarms can be set to trigger on two different conditions: • Deficiency/too little oxygen (setpoints less than 20.8) • Enriched/too much oxygen (setpoints greater than 20.8). • When the alarm setpoint is reached for either of the above: • Alarm sounds •...
Figure 3-7b. Instrument in VOC Gas Alarm • The Sirius Multigas Detector can be equipped to detect: • Carbon Monoxide (CO) and/or • Hydrogen Sulfide (H 2 S) and/or • Volatile Organic Compounds (VOCs) in the atmosphere. • When the alarm setpoint is reached for Carbon Monoxide (CO) and/or Hydrogen Sulfide (H 2 S) and/or VOC: •...
Figure 3-8. Heartbeat Safe LED The Sirius Multigas Detector is equipped with an optional green "SAFE" LED which flashes every 15 seconds under the following conditions • The green SAFE LED is enabled • Instrument is on the normal Measure Gases page •...
Peak Readings (PEAK) (FIGURE 3-10) Figure 3-10. PEAK Readings on the Display • PEAK appears in the upper portion of the display to show the highest levels of gas recorded by the Sirius Detector since: • Turn-ON or • Peak readings were reset.
• This page shows the lowest level of oxygen recorded by the Sirius Multigas Detector since: • Turn-ON or • MIN reading was reset. • MIN appears in the upper portion of the display. • To reset the MIN Reading: 1.
The STEL alarm is calculated over a 15-minute exposure. Calculation examples are as follows: • Assume the Detector has been running for at least 15 minutes: • 15-minute exposure of 35 PPM: (15 minutes x 35 PPM) = 35 PPM 15 minutes •...
• When the amount of gas detected by the Sirius Multigas Detector is greater than the eight-hour TWA limit: • Alarm Sounds • Alarm Lights Flash • TWA flashes. To Reset the TWA: 1. Access the TWA page. 2. Press the RESET/ button.
Time and Date Display (FIGURE 3-14) Figure 3-14 Time Display • The time appears on the display to show the current time of day in a 24-hour format. • The date appears on the display with the current date displayed in the following format: •...
At any time, user can select the option display by pressing the ON-OFF/ACCEPT button. • The first five Response Factors in the list are called favorites (these can be set using our MSA FiveStar Link program). • The user has the option to turn OFF the PID (VOC detection), if desired.
4. Use the RESET/ button to scroll through the alphabet or numbers, and use the ON-OFF/ACCEPT button to select the letter and move on to the next letter. Changing PID Bulb Selection Several PID bulb options are available for this instrument. The two bulb options currently available are: •...
Response Factor, and/or the correct bulb, will result in erroneous readings that could lead to serious injury or death. Turning OFF the Sirius Multigas Detector Push and Hold the ON-OFF/ACCEPT button for three seconds. • Four audible beeps will be heard during the turn-off sequence.
Do not take battery packs into a hazardous area unless they are properly attached to the Sirius instrument! To remove the battery pack from the Sirius Multigas Detector: 1. Unscrew the captive screw from the bottom of the battery door.
Figure 4-1. Battery Pack Removal 2. Pull the battery pack out of the instrument by gripping the sides of the battery pack door and lifting it up and away from the unit. 3. For Alkaline battery packs: a. Pull the battery pack from the clip. Figure 4-2.
Do not charge in a hazardous area. • The Sirius Multigas Detector must be turned OFF, or the battery pack may be removed from the instrument, prior to charging. NOTE: If the instrument is not turned OFF, the charger connection will turn OFF the instrument without warning.
Many options can be set using the instrument buttons. • If the Sirius Multigas Detector was ordered with the optional datalogging, the MSA FiveStar LINK software can be used to set most of the instrument selections, including some that cannot be changed from the instrument's front panel buttons.
5. New Password Setup (changes the password) Instrument Alarm Bypass Options The Sirius Multigas Detector (with software version 1.1 or higher) is equipped with a feature to disable or silence the visual, backlight, and audible options. If any of these options are disabled during instrument startup, the Sirius Detector displays: •...
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• Cal Lockout Enable: • To disable calibration, turn this feature ON • When ON, calibration is only accessible via the Setup mode and password (if enabled) • CAL Due Alert • To disable CAL Due messages, turn this feature OFF. •...
• Low Alarm (sets the low CO alarm) • High Alarm (sets the high CO alarm) • STEL Alarm (if enabled) (sets the STEL CO alarm) • TWA Alarm (if enabled) (sets the TWA CO alarm) • Cal Gas (sets the expected CO calibration gas) 10.H 2 S Setup •...
NOTE: After set-up, the instrument will display: "Warning - 100 ppb increments - see manual". Press the ON/OFF button to acknowledge the warning and to continue. " WARNING " The VOC Auto-range displays readings in increments of 100 ppb from 0 to 9900 ppb. Do not rely on the value of the last two digits (00).
Chapter 5, Calibration Calibrating the Sirius Multigas Detector Each Sirius Multigas Detector is equipped with an Autocalibration feature to make unit calibration as easy as possible. The Autocalibration sequence resets instrument zeroes and adjusts sensor calibration for known concentrations of calibration gases.
To Calibrate the Sirius Multigas Detector (FIGURE 5-1): Figure 5-1. Calibration Flow Chart 1. Turn ON the instrument and verify that battery has sufficient life. 2. Wait until the Measure Gases page appears. 3. Push and hold the RESET/ button until CAL ZERO? flashes on...
Figure 5-2a. Zero Flag Figure 5-2b. Zero Flag 4. Push the ON-OFF/ACCEPT button to zero the instrument. • Instrument must be in fresh air to perform the zero. • CAL ZERO flashes. NOTE: To skip the Zero procedure and move directly to the calibration span procedure, push the RESET/ button.
Figure 5-3a. CAL Flag Figure 5-3b. CAL Flag 5. Connect the appropriate calibration gas to the instrument by connecting one end of the tubing to the pump inlet on the instrument and the other end of tubing to the cylinder regulator (supplied in the calibration kit).
Autocalibration Failure If the Sirius Multigas Detector cannot calibrate one or more sensor(s), the instrument goes into the Autocalibration Failure Page and remains in alarm until the RESET button is pushed. Sensors that could not be calibrated are indicated by dashed lines on the concentration display.
Chapter 6, Warranty, Maintenance, and Troubleshooting MSA Portable Instrument Warranty Warranty- ITEM WARRANTY PERIOD Chassis and electronics Two years All sensors, unless otherwise specified Two years PID, including ion chamber One year This warranty does not cover fuses. Certain other accessories not specifically listed here may have different warranty periods.
Cleaning and Periodic Checks As with all electronic equipment, the Sirius Multigas Detector will operate only if it is properly maintained. " WARNING "...
• the PID shows increased sensitivity to humidity • the displayed PID reading is erratic. If you are operating the monitor in a high temperature, high humidity, or dirty environment, you may need to clean the lamp more frequently to maintain optimal performance.
Figure 6-1. Cleaning the PID Bulb 6. Open the Bulb Cleaning Kit (P/N 10049691), consisting of cleaning implements and laboratory-grade methanol. 7. Moisten a clean cotton swab with methanol. 8. Hold the middle of the bulb body securely in your thumb and fore- finger.
16.Never touch the lens surface with your fingers. If contact occurs, repeat steps 6 through 13. 17.Gently insert the clean bulb, window first into the bulb sleeve of the instrument. " CAUTION " Do not apply excessive pressure when seating the bulb. Too much pressure may damage the detector and/or the bulb.
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Use the Ion Chamber Replacement Kit (P/N 10050783). " CAUTION " Remove and re-install the ion chamber in a clean, non-haz- ardous environment. 1. Turn OFF the instrument and, while in a non-hazardous and non- combustible area, remove the battery pack. 2.
Figure 6-2b. Ion Chamber Removal 5. Using the 2.8-ounce container of ‘canned air’ found in the replacement kit, blow out any dust or dirt from the cell holder area (FIGURE 6-3a). NOTE: Hold the cleaner in a vertical position; do not shake. Hold the instrument upright and with two to three short bursts, blow any debris from the cell holder area.
Figure 6-3a. Ion Chamber Housing Cleaning Figure 6-3b. Ion Chamber Cleaning 8. Snap the ion chamber into the cell holder, with the four small, round holes facing up as in FIGURE 6-4. 9. Replace the ion chamber cover, aligning the notch to ensure proper orientation.
Figure 6-4. Ion Chamber Installation 11. Replace the filter housing and tighten the screw. 12.Place the used ion chamber in the reclosable package and discard. 13.Turn ON the instrument and check the system for leaks by plugging the inlet with a finger. •...
Figure 6-5. Filter Installation 5. Install the new water filter in the filter housing recess. 6. Replace the O-ring, being sure to press gently down on top of the water filter. NOTE: When replacing the water filter, carefully handle the new filter by the edges only, as it is easily torn.
Failure to follow the above can result in serious personal injury or death. PROBE FILTER • The MSA sampling probe contains a filter to: • block dust and dirt • block the passage of water.
Storage When not in use, store your Sirius Multigas Detector in a safe, dry place between 0° and 40°C (32° and 104°F). " WARNING " After storage, always recheck instrument calibration before use. During storage, sensors may drift or become inopera- tive and may not provide warnings of dangers to the health and lives of users.
See Chapters 3 and 6 Sensor missing Check installation of sensor/replace sensor. See Chapter 6 In all of the above cases and for any other problems, the Sirius Multigas Detector may be returned to MSA for repairs. Sensor Replacement 1. Verify the instrument is turned OFF.
5. Gently lift out and properly discard the sensor to be replaced. • Use a flat-blade screwdriver to pry the CO and/or H 2 S sensors from their holders. 6. For the combustible and/or O 2 sensor, carefully align the new sensor pins with the appropriate sockets on the (lower) printed circuit board.
8. Re-install the back case. 9. Tighten the four captive case screws. 10.Re-install the battery pack. 11. Turn ON the instrument and allow the new sensor(s) to equilibrate with the environment temperature for approximately five minutes. 12.Check the system for leaks by plugging the inlet with a clean finger.
Chapter 7, Performance Specifications Table 7-1. Certifications (see instrument label to determine applicable approval) HAZARDOUS UL913 for Class I, Div. 1, Groups A, B, C LOCATIONS (NON-MINING) and D, T3/T4*, Tamb=-20°C to +50°C *CANADA CSA C22.2, No. 157 for Class I, Div. 1, Groups A, B, C and D, T3/T4*, Tamb=-20°C to +50°C EUROPE EEx ia dIIC, T3/T4*, Tamb=-20°C to +50°C...
FACTORY-SET ALARM SETPOINTS LOW ALARM HIGH ALARM STEL 35 PPM 100 PPM H 2 S 10 PPM 15 PPM 19.5% 23.0% *NOTE: Extended temperature range indicates gas readings may vary slightly if calibrated at room temperature. For optimal perform- ance, calibrate instrument at temperature of use. Table 7-3.
4. These conversion factors should be used only if the combustible gas is known. 5. These conversion factors are typical for a Sirius Multigas Detector. Individual units may vary by +25% from these values Table 7-5. OXYGEN - Typical Performance Specifications...
sensor reading may temporarily shift, and possibly cause the detector to go into alarm. While the percentage of oxygen may remain at or near 20.8%, the total amount of oxygen present in the atmosphere available for respiration may become a hazard if the overall pressure is reduced to a significant degree.
Hydrogen (H 2 ) 70 +26 The carbon monoxide channel in the Sirius instrument is equipped with internal and external filters. The purpose of these filters is to protect the CO sensor from acid gases (H 2 S, SO 2 , etc.) and from the hydrocarbons that the instrument is intended to measure, including the calibration gas, isobutylene.
**See TABLE 7-10 NOTE Table 7-9. HYDROGEN SULFIDE - Cross Reference Factors for Sirius Calibration Using Calibration Cylinder (P/N10045035) NOTE: Data is presented as the indicated output in ppm, which would result from the application of 100 ppm of the test gas...
Table 7-10. PID (appropriate models only) - Typical Performance Specifications RANGE 0 to 2000 ppm DISPLAY RESOLUTION 0.1 ppm (100 ppb) from 0 to 2000 ppm; 1 ppm from 200 to 2000 ppm REPRODUCIBILITY** +2ppm (+2000 ppb) or +10%, whichever is greater (normal temperature range*) RESPONSE TIME 90% of final reading in 20 seconds (normal mode)
Users must be aware of exposure limit guidelines, such as TLV, for the target analyte. Do not use the Sirius PID Detector if the exposure limit for the tar- get analyte is below 0.1 ppm. Failure to follow this warning can cause over-exposure, which can result in serious per- sonal injury or death.
Gases with very high response Factors (RF): The Sirius PID is a very versatile solution for monitoring many different gases and vapors. In addition to the pre-programmed list provided in the Sirius instrument, users can determine response factors for many other compounds (see Section 7).
" WARNING " *Methanol can give a delayed, high response on the CO channel. When cleaning the bulb, it is important to ensure that all of the methanol cleaning compound has evaporated from the bulb before re-installation into the instrument. 7-15...
Chapter 8, Replacement and Accessory Parts Table 8-1. Accessory Parts List PART PART NO. Probe - 1 ft. 10042621 Probe - 3 ft. 10042622 Sampling Line - 10 ft. 10040665 Sampling Line - 25 ft. 10040664 Sampling Line - 10 ft. Teflon, straight 10049058 Sampling Line - 25 ft.
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FiveStar Link and Jeteye 710946 FiveStar Link Software 710988 Battery Pack, Alkaline (less door), UL/CSA version 10049098 Oxygen Sensor, Long Term storage 10049807 Tamper-resistant Cap Removal Tool 10051979 Battery Pack, Alkaline (less door), ATEX version 10064569 Charger with Power Supply, ATEX version 10068655 Charger Stand, ATEX version 10066628...
Table 8-2. Replacement Parts List PART PART NO. Screw Replacement Kit 10051537 Oxygen Sensor 10049806 Hydrogen Sulfide Sensor 10049805 Combustible Sensor 10049808 Carbon Monoxide Sensor 10049804 Case Gasket 10049894 Water Membrane, package of five 10051250 Dust filter, package of five 808935 Inlet Filter Assembly 10050843...