Pid Setup; Displaying Current Response Factor; Changing Response Factor; Selecting A Custom Response Factor - MSA SIRIUS Manual De Instrucciones

4 Measuring Gas Concentrations

4.3 PID Setup

WARNING!
It is very important to have an understanding of PID basics when changing your PID
settings. Failure to properly identify the VOC gas being measured, and failure to select
the correct Response Factor alarm values (exposure, STEL, TWA) that match your
desired Response Factor, and/or the correct bulb, will result in erroneous readings.

4.3.1 Displaying Current Response Factor

To display and/or change your current VOC response
factor, press PAGE/
Page (Figure 14). This shows the eight-character identifier
and multiplier for the current gas of interest. A complete
list and reference table for the eight-character identifiers of
all available gases is shown in 8. Performance Specifi-
cation, Table 15.

4.3.2 Changing Response Factor

To change your current Response Factor, press RESET/
• Up and down arrows appear on the display.
• User can now scroll, using the PAGE/
• 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 favourites (these can be set using
our MSA LINK program).
• The user has the option to turn OFF the PID (VOC detection), if desired.
• If the gas of interest isn't in the favorites list, select -MORE- to scroll through the
entire list of pre-programmed Response Factors in alphabetical order.

4.3.3 Selecting a Custom Response Factor

If the gas of interest in is not in the pre-programmed list, the user can use a Custom
Response Factor if the multiplier is known for the gas compared to the Isobutylene
calibration gas. To do this:
1. Go to the Response Factor page and press RESET/
2. Scroll to and select -CUSTOM-.
3. Enter your desired eight-character identifier and multiplier.
4. Use the RESET/
ON-OFF/ACCEPT button to select the letter and move on to the next letter.
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until you see the Response Factor
Figure 14: PID RF Page
button to scroll through the alphabet or numbers, and use the
on the Response Factor Page.
and RESET/ buttons.
button.