Safe Led; Operating Beep; Calibration Check - MSA SIRIUS Manual De Instrucciones

3 Using the SIRIUS Multigas Detector

3.11.1 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
• Combustible reading is 0% LEL or 0% CH
• Oxygen (O
• Carbon Monoxide (CO) reading is 0 ppm
• Hydrogen Sulfide (H
• VOC reading is 0 ppm
• No gas alarms are present (low or high)
• Instrument is not in Low Battery warning or alarm
• CO, H S, VOC, STEL and TWA readings are 0 ppm.
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3.11.2 Operating Beep

The SIRIUS Multigas Detector is equipped with an optional operating beep. This operating
beep activates every 30 seconds by momentarily beeping the horn and flashing the alarm
LEDs under the following conditions:
• Operating beep is enabled
• Instrument is on normal Measure Gases page
• Instrument is not in Battery warning
• Instrument is not in Gas alarm.

3.12 Calibration Check

The calibration check is simple and should only take about one minute.
Perform this calibration check before each day's use for each installed sensor.
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.
5. Attach other end of tubing to the instrument.
6. Open the valve on the regulator, if so equipped.
• The reading on the SIRIUS Multigas Detector display should be within the limits
stated on the calibration cylinder or limits determined by your company.
• If necessary, change cylinder to introduce other calibration gases.
• If readings are not within these limits, the SIRIUS Multigas Detector requires
recalibration. See 6. Calibration.
NOTE:
The presence of other calibration gases may cause the PID to indicate measuring error
by dashes for the displayed VOC reading.
20
) reading is 20.8%
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S) reading is 0 ppm
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